| PATENT NUMBER | This data is not available for free |
| PATENT GRANT DATE | April 6, 2004 |
| PATENT TITLE |
Spandex and it's preparation with dispersant slurry |
| PATENT ABSTRACT | A dispersant slurry for making spandex, based on phosphated block poly(alkylsiloxane)-poly(alkyleneether) alcohol or aromatic- or alkylaromatic-terminated phosphated poly(alkyleneether) alcohol dispersants, is provided |
| PATENT INVENTORS | This data is not available for free |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT FILE DATE | January 6, 2003 |
| PATENT REFERENCES CITED |
Anthony J. O'Lenick Jr. and Jeffrey K. Parkinson, Phosphate Esters: Chemistry and Properties, AATC Journal 17-20, Nov. 1995. Robert J. Hunter, Introduction to Modern Colloid Science, Oxford University Press, 294ff., 1993 |
| PATENT PARENT CASE TEXT | This data is not available for free |
| PATENT CLAIMS |
What is claimed is: 1. Spandex prepared with a dispersant slurry consisting essentially of: (A) 10-78 wt%, based on the total weight of the dispersant slurry, of an inorganic particulate; (B) 2-50 wt%, based on the inorganic particulate, of a dispersant soluble in the liquid of component (C) selected from the group consisting of (i) phosphated block poly(alkylsiloxane)-poly(alkyleneether) alcohols; and (ii) aromatic- or alkylaromatic-terminated phosphated poly(alkyleneether) alcohols; and (C) a liquid selected from the group consisting of dimethylsulfoxide, tetramethylurea, and amides. 2. Spandex of claim 1 wherein the dispersant slurry further consists essentially of 35-70 wt% inorganic particulate, wherein the dispersant is phosphated block poly(methylsiloxane)-trimethylene-poly(alkyleneether) alcohol and is present to the extent of about 4-15 wt% based on inorganic particulate, and the inorganic particulate has a median particle size, based on volume distribution, no larger than about one micron. 3. A process for preparing spandex comprising the steps of: (A) providing a dispersant slurry consisting essentially of (a) 10-78 wt %, based on the total weight of the dispersant slurry, of an inorganic particulate; (b) 2-50 wt %, based on the inorganic particulate, of a dispersant soluble in the liquid of component (c) selected from the group consisting of (i) phosphated block poly(alkylsiloxane)-poly(alkyleneether) alcohols; and (ii) aromatic- or alkylaromatic-terminated phosphated poly(alkyleneether) alcohols; and (c) a liquid selected from the group consisting of dimethylsulfoxide, tetramethylurea and amides; (B) milling the slurry until the particulate has a median particle size, based on volume distribution, of .ltoreq.5 microns; (C) adding the slurry to a solution of polyurethane in a spinning solvent to form a spinning solvent; and (D) spinning the spinning solution obtained in step (c) to form spandex. 4. The process of claim 3 wherein the slurry consists essentially of 35-70 wt % of an inorganic particulate and 4-15 wt %, based on inorganic particulate, of a phosphated block poly(alkylsiloxane)-trimethylene-poly(alkyleneether) alcohol dispersant, wherein the inorganic particulate has a median particle size, based on volume distribution, of about .ltoreq.1 micron and the spandex comprises about 0.1-10 wt % inorganic particulate, base on spandex. 5. The process of claim 3 wherein the slurry consists essentially of 10-70 wt %, based on the total weight of the dispersant slurry, of an inorganic particulate selected from the group consisting of titanium dioxide, zinc oxide, magnesium oxide, aluminum oxide, magnesium carbonate, calcium carbonate, barium carbonate, synthetic hydrotalcite, natural hydrotalcite, calcium sulfate, barium sulfate, and a physical mixture of huntite and hydromagnesite, and the liquid is an amide selected from the group consisting of N-methylpyrrolidone, dimethyl acetamide, and dimethyl formamide. 6. The process of claim 3 wherein the dispersant is a phosphated block poly(methylsiloxane)-trimethylene-poly(alkyleneether) alcohol. -------------------------------------------------------------------------------- |
| PATENT DESCRIPTION |
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispersant slurry of at least one inorganic particulate, at least one dispersant, and at least one liquid amide and, more particularly, to such a slurry in which the dispersant is a modified phosphated poly(alkyleneether) alcohol. 2. Description of Background Art Inorganic particulates are used as additives in making fibers, including solution-spun spandex. A variety of such additives are disclosed in U.S. Pat. Nos. 4,525,420, 3,389,942, and 5,626,960 and can be added to the spinning solution in the form of a mixture. Difficulties in filtering such solutions preparatory to spinning and deposits in the spinnerets can arise due to the presence of the inorganic particulates. European Patent Application 558,758 and U.S. Pat. No. 5,969,028 disclose the use of fatty acids and metal salts of fatty acids as dispersants; however, these are not particularly effective. British Patent 1,169,352 and Japanese Published Patent Application JP63-151352 disclose the use of polyether phosphates, as dispersants for inorganic materials but not in liquids suitable for solution spinning of polyurethanes into spandex. International Patent Application WO00/09789 and Japanese Published Patent Application JP11-229235 also disclose certain dispersants and selected additives in spandex to impart chlorine registance to polyuerethane fibers. Both of these references disclose phosphoric acid esters ("treatment agent") combined with oxides or hydroxides of zinc, magnesium or aluminum. WO00/09789 requires, for producing elastomeric urethane fibers, that the metal particles adhere to the treatment agent. The treatment agent includes polyoxyalkylene glycol alkylene ether acid phosphates, among others. Slurries made with these dispersants are not sufficiently stable, especially at high levels of inorganic particulates. There is still a need for improvements in spinning spandex containing inorganic additives. SUMMARY OF THE INVENTION The dispersant slurry of the present invention consists essentially of (A) 10-78 wt %, based on the total weight of the dispersant slurry, of an inorganic particulate; (B) 2-50 wt %, based on the inorganic particulate, of a dispersant soluble in the liquid of component (C) selected from the group consisting of (i) phosphated block poly(alkylsiloxane) poly(alkyleneether) alcohols and (ii) aromatic- or alkylaromatic-terminated phosphated poly(alkylene ether) alcohols; and (C) a liquid selected from the group consisting of dimethylsulfoxide, tetramethylurea and amides. The method of making spandex using the dispersant slurry of this invention comprises the steps of: (A) milling the slurry so that the particulate has a median particle size no greater than about 5 microns; (B) adding the slurry to a solution of polyurethane in a spinning solvent; and (C) spinning the mixture from step (B) to form spandex. BRIEF DESCRIPTION OF THE FIGURES FIG. 1 illustrates the effect of a block copolymer of a phosphated poly(alkyleneether) alcohol with polymethylsiloxane on the sediment volume of a physical mixture of huntite and hydromagnesite in DMAc. FIG. 2 illustrates the effect of various levels of a block copolymer of a phosphated poly(alkyleneether) alcohol with polymethylsiloxane on the viscosity of slurries of DMAc, a physical mixture of huntite and hydromagnesite and the block copolymer. DETAILED DESCRIPTION OF THE INVENTION As used herein, "spandex" has its customary meaning, that is, a manufactured fiber in which the fiber-forming substance is a long chain synthetic elastomer comprised of at least 85% by weight of a segmented polyurethane. To make the fiber, a solution of the polyurethane in a suitable spinning solvent is prepared and spun through a spinneret into a column of heated gas (dry-spinning) or into an aqueous bath (wet-spinning) to remove the solvent. The solution is usually filtered before reaching the spinnerets to reduce plugging. "Modified", as applied herein to phosphated poly(alkyleneether) alcohol dispersants and their precursors, means that the dispersant or precursor has an aromatic or alkylaromatic terminal group or a polyalkylsiloxane block. The silicone block of the more preferred dispersants used in making the slurry of the invention is only partially alkylated and contains silanic hydrogens available for grafting polyether blocks; such a silicone block is referred to herein as "polyalkylsiloxane" and its most common form as "polymethylsiloxane". Solvents suitable for making spandex are generally liquid amides, for example, dimethylacetamide ("DMAc"), N-methyl-2-pyrrolidone ("NMP"), and dimethylformamide. Dimethylsulfoxide (DMSO) and tetramethylurea (TMU) can also be used. A variety of stabilizers (for example, chlorine-resist and anti-tack agents), delustrants, and lubricants can be added to the polyurethane solution before it is spun. Finely divided inorganic particulates can be used as stabilizers, pigments, and delustrants. The present invention is a dispersant slurry (sometimes referred to as a millbase) comprised of at least one inorganic particulate additive, at least one dispersant and at least one liquid, such as amides, DMSO and TMU. The slurry comprises about 10-78 wt %, typically about 10-70 wt %, inorganic particulate based on total weight of the slurry, and about 2-50 wt %, based on the weight of inorganic particulate, of at least one dispersant. The preferred range is 2-25 wt %. In order to use smaller equipment and improve milling efficiency while avoiding a rapid rise in slurry viscosity which can make processing difficult, it is preferred that the slurry comprise about 35-70 wt % of inorganic particulate. It was unexpected that a non-aqueous, low viscosity, millable slurry could be made at such high particulate levels. The inorganic particulate in the mixture can have a median size (based on volume distribution) of about five microns or less and, for improved spinning into fiber, preferably of about one micron or less. When the particle size of the inorganic particulate is <1 micron, 4-15 wt % of dispersant is preferred. Such slurries, when milled or otherwise ground and combined with polyurethane spinning solution, can be readily filtered prior to spinning into spandex due to the reduced levels of oversized particles. Deposits on the inside of the spinnerets can also be reduced. Dispersants useful in making the dispersant slurry and spandex of the invention can be aromatic- or alkylaromatic-terminated phosphated poly(alkyleneether) alcohols and phosphated poly(alkyleneether) alcohols attached to a polyalkylsiloxane backbone as a terminal block or as a comb block. Aromatic-terminated phosphated poly(alkyleneether) alcohols are preferred, and phosphated poly(alkyleneether) alcohols attached to a polyalkylsiloxane backbone as a terminal block or as a comb block are more preferred. In the case of such modified phosphated poly(alkyleneether) alcohols, the precursor polymeric alcohols can be homopolyethers, random copolyethers, or block copolyethers. An example of a precursor homopolyether is poly(ethyleneether) alcohol, and an example of a precursor copolyether is poly(ethyleneether-co-propyleneether) alcohol. Modified phosphated poly(alkyleneether) alcohols can be prepared by the reaction of a correspondingly modified poly(alkyleneether) alcohol (either a monoalcohol or a dialcohol) with polyphosphoric acid, phosphorus oxytrichloride, or phosphorus pentoxide, for example as described in International Patent Application WO97/19748, U.S. Pat. No. 3,567,636 and references therein. The free acid form of the resulting modified poly(alkyleneether) phosphate mono- and di-esters is used; other forms such as the alkali metal salts are generally insoluble in the liquids used with this invention. The poly(alkyleneether) alcohols which are modified and phosphated to form the corresponding phosphate ester dispersants used in the present invention are sometimes also called oxirane (co)polymers, (co)poly(oxyalkylene) alcohols, ethylene oxide and propylene oxide (co)polymers, or (co)polyalkylene glycols. The modified phosphated poly(alkyleneether) alcohols can be terminated with aromatic- or alkylaromatic moieties such as phenyl, tristyrylphenyl, nonylphenyl, and similar groups. Termination with, for example, phenyl or tristyrylphenyl groups is preferred. For example tristyrylphenyl-terminated poly(ethyleneether) alcohol phosphate having 16 ethyleneether groups is represented by the formula: ##STR1## A more preferred form of modified phosphated poly(alkyleneether) used in the present invention is a terminal or comb block copolymer having a silicone backbone, for example of polymethylsiloxane. As described in U.S. Pat. Nos. 5,070,171, 5,149,765, and 5,785,894, such polymers can be prepared by reacting polymethylsiloxanes containing silanic hydrogen(s) with allyl alcohol or an allyl alcohol alkoxylate of the desired polyether to give the block polysiloxane polyether, followed by phosphation with polyphosphoric acid or phosphorus pentoxide. Such preferred dispersants are referred to herein as "phosphated block poly(alkylsiloxane)-poly(alkyleneether) alcohols", and their most common form as "phosphated block poly(methylsiloxane)-trimethylene-poly(ethyleneether) alcohols". The optional "trimethylene" term indicating the link between the blocks created by reaction of allyl alcohol. These dispersants can be represented by the following formulas: ##STR2## herein R is ##STR3## a is an integer from 0 to 200; b is an integer from 0 to 200; c is an integer from 1 to 200; R.sup.1 is selected from --(CH.sub.2).sub.n CH.sub.3 and phenyl; n is an integer from 0 to 10; R.sup.2 is --(CH.sub.2).sub.3 --(OCH.sub.2 CH.sub.2).sub.x --[OCH.sub.2 CH(CH.sub.3)].sub.y --(OCH.sub.2 CH.sub.2).sub.z --OH; x, y and z are integers and are independently selected from 0 to 20; and e and f range from 1 to 2 with the proviso that e+f=3; and ##STR4## wherein a is an integer from 0 to 200; b is an integer from 0 to 200; c is an integer from 1 to 200; R.sup.1 is selected from --(CH.sub.2).sub.n CH.sub.3 or phenyl; n is an integer from 0 to 10; R.sup.2 is --(CH.sub.2).sub.3 --(OCH.sub.2 CH.sub.2).sub.x --[OCH.sub.2 CH(CH.sub.3)].sub.y --(OCH.sub.2 CH.sub.2).sub.z --OH; and x, y and z are integers and are independently selected from 0 to 20. In the modified phosphated poly(alkyleneether) alcohols useful in the present invention, other moieties can be present, for example in the polyether portion, provided such moieties do not deleteriously affect the slurry, process, and/or spandex of the invention. Such moieties include keto, amide, urethane, urea, and ester groups. Inorganic particulates that can be used in the dispersant slurry of the present invention include carbonates (e.g., magnesium carbonate, calcium carbonate, barium carbonate, and complex carbonates such as hydrotalcite and a physical mixture of huntite, Mg.sub.3 Ca(CO.sub.3).sub.4, and hydromagnesite, Mg.sub.4 (CO.sub.3).sub.4.Mg(OH).sub.2.4H.sub.2 O, sulfates (e.g., barium sulfate and calcium sulfate), hydroxides (e.g., magnesium hydroxide and calcium hydroxide), and oxides (e.g., silicates, aluminum oxide, magnesium oxide, titanium dioxide, and zinc oxide). The hydrotalcite can be synthetic or naturally occurring and has the general formula M.sup.2+.sub.x Al.sub.2 (OH).sub.2x+6-nz (A.sup.n-).sub.z.mH.sub.2 O, wherein M is Mg or Zn, x is a positive integer of at least 2, z is a positive integer of 2 or less, m is a positive integer, and A.sup.n- is an anion of valence n. Examples of hydrotalcites useful in the present invention include Mg.sub.4.5 Al.sub.2 (OH).sub.13 CO.sub.3.3.5H.sub.2 0, Mg.sub.6 Al.sub.2 (OH).sub.16 CO.sub.3.4H.sub.2 0, Mg.sub.8 Al.sub.2 (OH).sub.20 CO.sub.3.3.6H.sub.2 0, Mg.sub.4.7 Al.sub.2 (OH).sub.13.4 CO.sub.3.3.7H.sub.2 0, Mg.sub.3.9 Al.sub.2 (OH).sub.5.8 CO.sub.3.2.7H.sub.2 0, and Mg.sub.3 Al.sub.2 (OH).sub.10 CO.sub.3.1.7H.sub.2 0. Liquid amides that can be used in this invention include DMAc, NMP, and dimethylformamide. The dispersant slurry is prepared by mixing together and, then, optionally milling or grinding, at least one of a liquid amide, TMU and DMSO, at least one inorganic particulate, and at least one dispersant. The slurry can also contain other additives. The slurry ingredients can be mixed in any order, but it is preferred either that the dispersant first be mixed with the liquid and then the inorganic particulate be added, or that the dispersant first be mixed with or coated onto the inorganic particulate and then the liquid be added. First mixing the liquid with the inorganic particulate can result in undesirably high initial viscosity, at least until the dispersant is added. Optionally, the slurry can be diluted, or let down, with additional liquid amide and/or a solution of polyurethane in amide. The let down slurry can then be mixed with additional polyurethane solution and other additives to form a so-called polyurethane spinning solution, which is then dry- or wet-spun to form spandex containing about 0.1-10 wt % inorganic additive, based on the weight of the fiber. For example, about 0.5 wt %, based on the weight of spandex, of a physical mixture of huntite and hydromagnesite can be used. Unless otherwise noted, the dispersants tested in the Examples were used neat or nearly neat; however, other materials can be present in the dispersant if such materials do not adversely affect making, processing, and using the dispersant slurry or the resulting spandex. Commercial phosphated polyether alcohols used in the Examples were complex mixtures of monoester, diester, unreacted phosphoric acid, and unphosphated polyether alcohol (AATCC Journal, November 1995, pp 17-20). Lambent Phos A-100, a block polymethylsiloxanetrimethylene-polyethyleneether alcohol phosphate, is a comb polymer having a plurality of polyethyleneether groups as the teeth of the comb, and about 40% of the hydroxyl groups in each block copolymer molecule are phosphated, 5-8% being monoester, 26-33% being diester, and the remainder of the hydroxyl groups on the polyethyleneether teeth are substantially unreacted (nonionic) moieties. Less than 1% of Lambent Phos A-100 is phosphoric acid. The inorganic particulate materials used in the Examples were as follows; all references to particle size are based on volume distribution: Ultracarb.RTM. U5: Microfine Minerals, Ltd. An approximately 50/50 weight ratio of huntite and hydromagnesite, having median particle size of 5 microns. Ultracarb.RTM. UF: Microfine Minerals, Ltd. Similar to Ultracarb.RTM. U5 but has a median particle size of 1 micron with particle agglomerates having a median size of 30 microns. Ultracarb.RTM. UF, air milled: Ultracarb.RTM. UF which has been processed through an air jet mill to break up agglomerates. Median particle size of about 1 micron. Mag.RTM. Chem BMC-2: Martin Marietta Magnesia Specialties, Inc. High purity, highly reactive basic magnesium carbonate powder, Mg.sub.5 (CO.sub.3).sub.4 (OH).sub.2.4H.sub.2 O. Particle size, 1.5 microns. Mag.RTM. Chem 50M: Martin Marietta Magnesia Specialties, Inc. Light burned magnesium oxide, having a median particle size of 1 micron. R902 DuPont: Titanium dioxide median particle size 0.42 micron. Kadox.RTM. 911: E. W. Kaufmann Co. Zinc oxide, minimum 99.9% pure, average particle size 0.1 micron. DHT-4A: Kyowa Chemical Industry Co., Ltd. Synthetic hydrotalcite, Mg.sub.4.5 Al.sub.2 (OH).sub.13 CO.sub.3.3.5H.sub.2 O. Barium Sulfate: Sachtleben Chemie GmbH, Micro grade blanc fixe, 1 micron particle size. Candidate dispersants were first screened on the basis of solubility in DMAc. Only those that were soluble were examined with regard to their ability to disperse effectively inorganic particulates in the liquids utilized in this invention. Additional tests were then conducted to determine the effectiveness of the dispersants in creating low volume, dense sediments with an inorganic particulate in DMAc after being thoroughly agitated and then allowed to stand. Low sediment volumes are desirable because they indicate that the particles mutually repel each other and are well dispersed, not flocculated or agglomerated, and are therefore able to settle into a well consolidated sediment. (See "Introduction to Modern Colloid Science", Robert J. Hunter, Oxford University Press, 1993, pp. 294ff.) Unless otherwise noted, sedimentation tests were conducted using dilute mixtures in DMAc of 15 wt % inorganic solids, based on the weight of the DMAc. A sample was vigorously mixed using an IKA Ultra-Turrax T25 Basic Disperser (IKA Works, Inc., Wilmington, N.C.) for 3 minutes at 16,000 rpm (setting 3) using dispersing tools S25N-25G for mixture volumes of 50-2500 ml and S25N-10G for mixture volumes of 1-50 ml; these two tools have the same emulsion "fineness" ratings. Immediately after the disperser was stopped, 25 ml of the mixture was transferred into a 25-ml graduated cylinder. The cylinder was sealed to prevent liquid evaporation, and the sediment volume was recorded as a function of time. Low sediment volumes indicate an effective dispersant and a stable dispersion. In the Tables, "weight %" refers to the weight percent of dispersant, based on inorganic particulate. The test used to determine "filterability" in the Examples measured the quantity of the dispersant slurry, under 80 psi (550 kilopascals) pressure, which passed through a screen having a 12-micron pore size until the screen became completely plugged. The test apparatus consisted of a metal pipe, 1.75" (4.4 cm) in diameter and 18" (46 cm) long, threaded on each end, which was held in a vertical orientation. The lower end of the pipe was sealed with a metal cap having a 0.31" (7.9 mm) diameter opening in the center. Over this opening, between the cap and the pipe, were placed a set of 3 metal screens, of which the bottom was 20 mesh, the middle 200 mesh, and the uppermost was 200.times.1400 mesh of Dutch Twilled Weave construction having an absolute retention rating of 11-13 microns, and a cardboard gasket having a 1" (2.54 cm) diameter opening. The gasket served to make a pressure-tight seal and to control the cross-sectional area through which the slurry flowed. The upper end of the pipe was sealed with a metal cap which was connected to a high pressure air line. The test was conducted by pouring 500 grams of the slurry of inorganic particulate, liquid, and dispersant into the pipe containing the screen pack and bottom cap, and then screwing on the top cap to make a tight seal. A valve was opened to apply 80 psi (550 kiloPascals) air pressure to the apparatus, forcing the slurry to flow through the screens, and into a cup. When the flow had completely stopped, the quantity of slurry in the cup was weighed. The weight of slurry collected is a good prediction of the operating continuity of the spandex spinning process; the more slurry that was collected, the better was the operating continuity in dry spinning. A Microtrac X100 (Honeywell, Leeds, and Northrup) instrument was used to measure D90, which is the particle size below which falls 90% of the volume of the particles in a sample. Some specific examples of commercially available dispersants which are useful in the present invention are shown in Tables IA and IB; the information is based on information provided by the manufacturers; "CRN" means Chemical Registry Number. For the modified phosphated poly(alkyleneether) alcohols, where the average number of alkylene oxide units in the poly(alkyleneether) chain is known, it is indicated as "number EO" for ethylene oxide and as "number PO" for propylene oxide moieties. The poly(alkyleneether) alcohols used for comparison purposes were either not phosphated or, if phosphated, were not modified with aromatic groups, alkylaromatic groups, or polyalkylsiloxane blocks, and, therefore, are outside the scope of this invention. TABLE IA DISPERSANT MANUFACTURER CRN (ALKYL) AROMATIC TERMINATED PHOSPHATED POLY (ALKYLENEETHER) ALCOHOLS Sipophos P-6P Spec. Ind. Prod. 39464-70-5 Chemphos TC-227 Chemron Corp. Findet OJP-5 Finetex, Inc. 51811-79-1 Monafax 785 Uniqema 51811-79-1 Monafax 786 Uniqema 51811-79-1 Sipophos NP-9P Spec. Ind. Prod. 51811-79-1 Soprophor 3D-33 Rhodia 90093-37-1 PHOSPHATED BLOCK POLY (ALKYLSILOXANE)-POLY (ALKYLENEETHER) ALCOHOLS Lambent Phos A-100 Lambent Technol. Corp. 132207-31-9 Lambent Phos A-150 Lambent Technol. Corp. 132207-31-9 Lambent Phos A-200 Lambent Technol. Corp. 132207-31-9 COMPARISON ALKYL TERMINATED PHOSPHATED POLY (ALKYLENEETHER) ALCOHOLS Monafax 831 Uniqema 114733-04-9 Sipophos DA-6P Spec. Ind. Prod. 52019-36-0 Sipophos TDA-6P Spec. Ind. Prod. 73038-25-2 COMPARISON PHOSPHATED POLY (ALKYLENEETHER) POLYOLS Atphos 3232 Uniqema Chemax X-1118 Chemax, Inc. 37280-82-3 Solsperse 53095* Avecia Pigments & Additives 37280-82-3 COMPARISON POLY (ALKYLENEETHER) POLYOLS Pluronic L-61 BASF 106392-12-5 Pluronic F-68 BASF 106392-12-5 Pluronic F-127 BASF 106392-12-5 Pluronic 17R2 BASF 106392-12-5 Pluronic 25R2 BASF 106392-12-5 *95% in water; obtained from United Color Technology, Inc. TABLE IB DISPERSANT CHEMICAL SYNONYMS (ALKYL)AROMATIC TERMINATED PHOSPHATED POLY(ALKYLENEETHER) ALCOHOLS Sipophos P-6P Phenyl-terminated poly(ethylenether) alcohol phosphate (6 EO) Chemphos TC-227 Aromatic-terminated poly(ethyleneether) alcohol phosphate (MW ca. 1000) Findet OJP-5 Nonylphenyl-terminated poly(ethyleneether) alcohol phosphate Monafax 785 Nonylphenyl-terminated poly(ethyleneether) alcohol phosphate (9.5 EO) Monafax 786 Nonylphenyl-terminated poly(ethyleneether) alcohol phosphate (6 EO) Sipophos NP-9P Nonylphenyl-terminated poly(ethyleneether) alcohol phosphate (9 EO) Soprophor 3D-33 Tristyrylphenyl-terminated poly(ethyleneether) alcohol phosphate (16 EO) PHOSPHATED BLOCK POLY(ALKYLSILOXANE) POLY(ALKYLENEETHER) ALCOHOLS Lambent Phos A-100 Block poly(dimethylsiloxane)-trimethylene-poly(ethyleneether) alcohol phosphate (MW ca. 3500; 7.5-8.3 EO) Lambent Phos A-150 Block poly(dimethylsiloxane)-trimethylene-poly(ethyleneether) alcohol phosphate (MW ca. 3500; 7 EO) Lambent Phos A-200 Bock poly(dimethylsiloxane)-trimethylene-poly(ethyleneether-co- propyleneether) alcohol phosphate (MW ca. 3500; random 7 EO + 4PO) ALKYL TERMINATED PHOSPHATED POLY(ALKYLENEETHER)ALCOHOLS Monafax 831 Isodecyl-terminated poly(ethyleneether) alcohol phosphate (10 EO) Sipophos DA-6P Isodecyl-terminated poly(ethyleneether) alcohol phosphate (6 EO) Sipophos TDA-6P Isotridecyl-terminated poly(ethyleneether) alcohol phosphate (6 EO) COMPARISON PHOSPHATED POLY(ALKYLENEETHER) POLYOLS Atphos 3232 Poly(ethyleneether) polyol phosphate Chemax X-1118 Poly(ethyleneether-co-propyleneether) polyol phosphate (MW ca. 8500) Solsperse 53095 Poly(ethyleneether-co-propyleneether) polyol phosphate COMPARISON POLY(ALKYLENEETHER) POLYOLS Pluronic L-61 Block poly(ethyleneether-co-propyleneether) polyol (MW 2000; 10 wt % EO; EO ends) Pluronic F-68 Block poly(ethyleneether-co-propyleneether) polyol (MW 8400; 80 wt % EO; EO ends) Pluronic F-127 Block poly(ethyleneether-co-propyleneether) polyol (Mw 12600; 70 wt % EO; EO ends) Pluronic 17R2 Block poly(propyleneether-co-ethyleneether) polyol (MW 2150; 20 wt % EO; PO ends) Pluronic 25R2 Block poly(propyleneether-co-ethyleneether) polyol (MW 3100; 20 wt % EO; PO ends) |
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