US20110311723A1 - Silicate Shell Microcapsules For Treating Textiles - Google Patents
Silicate Shell Microcapsules For Treating Textiles Download PDFInfo
- Publication number
- US20110311723A1 US20110311723A1 US13/124,227 US200913124227A US2011311723A1 US 20110311723 A1 US20110311723 A1 US 20110311723A1 US 200913124227 A US200913124227 A US 200913124227A US 2011311723 A1 US2011311723 A1 US 2011311723A1
- Authority
- US
- United States
- Prior art keywords
- water
- oil
- composition
- silicone
- treatment composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000004753 textile Substances 0.000 title claims abstract description 63
- 239000003094 microcapsule Substances 0.000 title claims abstract description 26
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 claims abstract description 93
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 57
- 238000011282 treatment Methods 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 229920005989 resin Polymers 0.000 claims description 37
- 239000011347 resin Substances 0.000 claims description 37
- 239000012530 fluid Substances 0.000 claims description 34
- 239000003921 oil Substances 0.000 claims description 33
- 239000007764 o/w emulsion Substances 0.000 claims description 26
- 150000003377 silicon compounds Chemical class 0.000 claims description 23
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 20
- 239000003093 cationic surfactant Substances 0.000 claims description 17
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 claims description 16
- 239000003054 catalyst Substances 0.000 claims description 12
- 229920006294 polydialkylsiloxane Polymers 0.000 claims description 12
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 11
- 239000007864 aqueous solution Substances 0.000 claims description 10
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 8
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000007822 coupling agent Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 abstract description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 11
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 27
- 239000000839 emulsion Substances 0.000 description 20
- 239000012071 phase Substances 0.000 description 19
- 229920000742 Cotton Polymers 0.000 description 18
- -1 siloxane units Chemical group 0.000 description 14
- 239000004744 fabric Substances 0.000 description 13
- 229920000728 polyester Polymers 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- 239000004205 dimethyl polysiloxane Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 10
- 229960004592 isopropanol Drugs 0.000 description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 8
- 239000000835 fiber Substances 0.000 description 8
- 229910000077 silane Inorganic materials 0.000 description 8
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 8
- 239000011162 core material Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 239000002280 amphoteric surfactant Substances 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 238000006482 condensation reaction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 125000001453 quaternary ammonium group Chemical group 0.000 description 5
- 125000000547 substituted alkyl group Chemical group 0.000 description 5
- 125000003545 alkoxy group Chemical group 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 125000002091 cationic group Chemical group 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 229910004674 SiO0.5 Inorganic materials 0.000 description 3
- 229910020388 SiO1/2 Inorganic materials 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000002736 nonionic surfactant Substances 0.000 description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- VOLGAXAGEUPBDM-UHFFFAOYSA-N $l^{1}-oxidanylethane Chemical compound CC[O] VOLGAXAGEUPBDM-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910020447 SiO2/2 Inorganic materials 0.000 description 2
- 229910020487 SiO3/2 Inorganic materials 0.000 description 2
- 229910020485 SiO4/2 Inorganic materials 0.000 description 2
- 229920004935 Trevira® Polymers 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 150000005215 alkyl ethers Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical compound [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 150000001282 organosilanes Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 150000004756 silanes Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- BJAARRARQJZURR-UHFFFAOYSA-N trimethylazanium;hydroxide Chemical compound O.CN(C)C BJAARRARQJZURR-UHFFFAOYSA-N 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical class C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000016936 Dendrocalamus strictus Nutrition 0.000 description 1
- 229920004511 Dow Corning® 200 Fluid Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical class C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229910008051 Si-OH Inorganic materials 0.000 description 1
- 229910006358 Si—OH Inorganic materials 0.000 description 1
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 1
- FGPCETMNRYMFJR-UHFFFAOYSA-L [7,7-dimethyloctanoyloxy(dimethyl)stannyl] 7,7-dimethyloctanoate Chemical compound CC(C)(C)CCCCCC(=O)O[Sn](C)(C)OC(=O)CCCCCC(C)(C)C FGPCETMNRYMFJR-UHFFFAOYSA-L 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000005037 alkyl phenyl group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 239000003788 bath preparation Substances 0.000 description 1
- UHWHEIKTDHONME-UHFFFAOYSA-M benzyl-decyl-dimethylazanium;hydroxide Chemical compound [OH-].CCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 UHWHEIKTDHONME-UHFFFAOYSA-M 0.000 description 1
- YDLDFMRKAOZXPN-UHFFFAOYSA-M benzyl-dimethyl-octylazanium;hydroxide Chemical compound [OH-].CCCCCCCC[N+](C)(C)CC1=CC=CC=C1 YDLDFMRKAOZXPN-UHFFFAOYSA-M 0.000 description 1
- 229960003237 betaine Drugs 0.000 description 1
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical compound CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 description 1
- 229940073507 cocamidopropyl betaine Drugs 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- KZOIWQKIVZDOGH-UHFFFAOYSA-M didodecyl(dimethyl)azanium;hydroxide Chemical compound [OH-].CCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCC KZOIWQKIVZDOGH-UHFFFAOYSA-M 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- VBVQYGNPGUXBIS-UHFFFAOYSA-M dimethyl(dioctadecyl)azanium;hydroxide Chemical compound [OH-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC VBVQYGNPGUXBIS-UHFFFAOYSA-M 0.000 description 1
- WSFMFXQNYPNYGG-UHFFFAOYSA-M dimethyl-octadecyl-(3-trimethoxysilylpropyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCC[Si](OC)(OC)OC WSFMFXQNYPNYGG-UHFFFAOYSA-M 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 1
- JVQOASIPRRGMOS-UHFFFAOYSA-M dodecyl(trimethyl)azanium;hydroxide Chemical compound [OH-].CCCCCCCCCCCC[N+](C)(C)C JVQOASIPRRGMOS-UHFFFAOYSA-M 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 238000007706 flame test Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- WJLUBOLDZCQZEV-UHFFFAOYSA-M hexadecyl(trimethyl)azanium;hydroxide Chemical compound [OH-].CCCCCCCCCCCCCCCC[N+](C)(C)C WJLUBOLDZCQZEV-UHFFFAOYSA-M 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000003961 organosilicon compounds Chemical class 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- FSYKKLYZXJSNPZ-UHFFFAOYSA-N sarcosine Chemical compound C[NH2+]CC([O-])=O FSYKKLYZXJSNPZ-UHFFFAOYSA-N 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- STYCVOUVPXOARC-UHFFFAOYSA-M trimethyl(octyl)azanium;hydroxide Chemical compound [OH-].CCCCCCCC[N+](C)(C)C STYCVOUVPXOARC-UHFFFAOYSA-M 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/11—Encapsulated compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
- A61K8/062—Oil-in-water emulsions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/896—Polysiloxanes containing atoms other than silicon, carbon, oxygen and hydrogen, e.g. dimethicone copolyol phosphate
- A61K8/898—Polysiloxanes containing atoms other than silicon, carbon, oxygen and hydrogen, e.g. dimethicone copolyol phosphate containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/12—Preparations containing hair conditioners
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/001—Softening compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/001—Softening compositions
- C11D3/0015—Softening compositions liquid
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/162—Organic compounds containing Si
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones
- C11D3/3742—Nitrogen containing silicones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/12—Soft surfaces, e.g. textile
Definitions
- This disclosure relates to silicate shell microcapsules containing a silicone textile treatment composition and their use for treating textiles.
- Textiles intended for uses as mattress coverage, curtains, protective clothing, tenting etc. are frequently referred to as “industrial textiles”. Contrary to the fashion textiles (the ones indented for clothing, for example) the industrial ones have to meet severe requirements with regard to their safety and durability. First, they must be flame retardant, a property which is generally achieved via a surface treatment, and standardized in norms as for example DIN 4102-B2. Second, these textiles have to be hydrophobic, i.e. not to allow the water to pass-through. Moreover, hydrophobicity must be retained after numerous cycles of washing, which on itself is not evident. Thirdly, an additional criterion, namely softness is required for the textiles which are used for protective clothing. Furthermore, the fabrication of industrial textiles should respect ecological standards, as for example OEKO TEX STANDARD 100. The latter bans the use of a vast number of chemicals, considered dangerous for environment and human health, during the fabrication and conditioning of the textiles in general.
- compositions and methods for the treatment of industrial textiles which impart hydrophobicity, softness and flame retardant properties while using chemicals which do not have adverse effect on environment and/or or human health.
- EP-A-941761 describes a process for preparing microcapsules with an organopolysiloxane shell and a core material, in which the shell is formed in situ by hydrolysis and polycondensation of an organosilane and/or a condensation product thereof having at most 4 silicon atoms.
- WO-A-03/066209 describes a lipophilic cosmetic, chemical, biological or pharmaceutical active material composition such as a sunscreen encapsulated within a shell of the emulsion polymerisation product of a tetraalkoxysilane.
- WO-A-2008/002637 discloses a process for preparing microcapsules by mixing an oil phase and an aqueous solution of a cationic surfactant to form an oil in water emulsion, and adding a water reactive silicon compound comprising tetraalkoxysilane to the emulsion so that the tetraalkoxysilane condenses and polymerises at the oil/water interface.
- the amount of cationic surfactant is 0.1% to 0.3% by weight based on the oil phase and the shell thickness of the microcapsules is at least 18 nm.
- silicone containing microcapsules which when applied to industrial textiles, impart benefits such as softness and hydrophobicity while maintaining flame retardant properties. These benefits persist after washing of the textile. Furthermore, the softening and hydrophobicity benefits of the present compositions are compatible with the flame retardant properties of the textiles.
- compositions comprising suspended silicate shell microcapsules of a silicone textile treatment composition wherein the silicate shell microcapsules are obtained by;
- This disclosure further provides a method for treating textiles by applying to textiles the composition comprising suspended silicate shell microcapsules of a silicone textile treatment composition.
- compositions and methods for treating textiles are aqueous suspensions of silicate shell microcapsules containing a silicone textile treatment composition core.
- compositions containing suspended silicate shell microcapsules of a silicone textile treatment composition may be obtained by;
- Step I involves mixing an oil phase containing a silicone textile treatment composition and an aqueous solution of a cationic surfactant to form an oil in water emulsion.
- the silicone textile treatment composition may contain any silicone or organopolysiloxane known in the art for treating textiles.
- treatment includes conditioning, hydrophobing, softening, or modification in any way the “feel” or physical surface properties of a textile.
- the silicone textile treatment composition is a hydrophobic liquid, so as to enable the formation of an oil in water emulsion, as per step I of the process to prepare the microcapsules.
- the silicone textile treatment composition may contain a single organopolysiloxane or a mixture of various organopolysiloxanes.
- Organopolysiloxanes are polymers containing siloxane units independently selected from (R 3 SiO 0.5 ), (R 2 SiO), (RSiO 1.5 ), or (SiO 2 ) siloxy units, where R may be any monovalent organic group.
- R is a methyl group in the (R 3 SiO 0.5 ), (R 2 SiO), (RSiO 1.5 ), or (SiO 2 ) siloxy units of an organopolysiloxane
- the siloxy units are commonly referred to as M, D, T, and Q units respectively.
- the organopolysiloxane useful in the silicone treatment compositions of the present invention may have any combination of (R 3 SiO 0.5 ), (R 2 SiO), (RSiO 1.5 ), or (SiO 2 ) siloxy units.
- the organopolysilxoxanes may have cyclic, linear, or branched structures.
- the organopolysiloxanes may be volatile, have varying viscosities ranging from low viscosity fluids to high viscosity fluids/gums, be elastomeric, or resinous.
- organopolysiloxane may be dispersed or solubilized in a lower viscosity fluid so as to provide a hydrophobic liquid (i.e. an oil phase) for preparation of the oil in water emulsion of step I.
- a hydrophobic liquid i.e. an oil phase
- the silicone treatment composition may contain a siloxane resin.
- siloxane resin refers to any organopolysiloxane containing at least one T or
- the siloxane resin contains at least 10 T or Q siloxy units.
- the siloxane resin may contain OH groups or groups hydrolysable to OH groups (as alkoxy for example) bounded to the Si atoms. Typically, 0.5 to 20% (mole) of the Si atoms should bear OH or hydrolysable groups.
- the siloxane resin may be selected from those known in the art as silsesquioxane, DT, or MQ resins.
- the siloxane resin is an MQ siloxane resin.
- MQ siloxane resins are known as those resins containing M and Q siloxy units. They have been described in a number of publications and are commercially available.
- Typical MQ resins useful in the present compositions are those consisting essentially of (CH 3 ) 3 SiO 1/2 units and SiO 4/2 units wherein the ratio of (CH 3 ) 3 SiO 1/2 units to SiO 4/2 units is from 0.4:1 to 1.2:1 or a condensate of said MQ resin with other organosilicon compounds.
- the MQ resin is a siloxane resin copolymer consisting essentially of (CH 3 ) 3 SiO 1/2 units and SiO 2 units in a molar ratio of approximately 0.75:1.
- a non-limiting example of such material is DC 5-7104 from Dow Corning Corp. (Midland, Mich.).
- the siloxane resin is a DT resin
- Typical DT resins useful in the present compositions are those consisting essentially of (CH 3 ) 2 SiO 2/2 units and (CH 3 ) SiO 3 / 2 units wherein the ratio of (CH 3 ) 2 SiO 2/2 units to (CH 3 ) SiO 3/2 units is from 0.5:2 to 2:0.5.
- Non-limiting examples of useful DT resins include DC 3037 and DC 3074 (Dow Corning Corp. Midland, Mich.).
- the silicone treatment composition may contain a polydialkylsiloxane fluid.
- the polydialkylsiloxane fluid may be any organopolysiloxane having primarily D siloxy units of the formula [R′ 2 SiO] where R′ represents an alkyl group having 1 to 30 carbon atoms.
- the number of repeating D siloxy units is considered as the degree of polymerization, and may vary. However, the degree of polymerization is such that the polydialkylsiloxane is a fluid at 25° C.
- the polydialkylsiloxane fluid is selected from a trimethylsiloxy terminated polydimethylsiloxane fluid having a viscosity varying from 10 to 100,000 mm 2 /s at 25° C., alternatively from 60 to 60,000 mm 2 /s at 25° C., alternatively from 100 to 50,000 mm 2 /s at 25° C.
- Representative commercially available polydimethylsiloxane fluids include Dow Corning® 200 fluids (Dow Corning Corporation, Midland Mich.).
- the polydialkylsiloxane fluid is selected from a silanol terminated polydimethylsiloxane fluid having a viscosity varying from 10 to 100,000 mm 2 /s at 25° C., alternatively from 60 to 60,000 mm 2 /s at 25° C., alternatively from 100 to 50,000 mm 2 /s at 25° C.
- the silicone treatment composition contains a mixture of the siloxane resin and the polydialkylsiloxane fluid.
- the siloxane resin and polydialkylsiloxane fluid are the same as described above.
- the weight ratio of the polydialkylsiloxane fluid to the siloxane resin may vary, but typically is from 0.5/1 to 4/1, alternatively, from 1/1 to 3/1.
- the silicone treatment composition is mixed with an aqueous solution of a cationic surfactant to form an oil in water emulsion.
- Cationic surfactants may be quaternary ammonium hydroxides such as octyl trimethyl ammonium hydroxide, dodecyl trimethyl ammonium hydroxide, hexadecyl trimethyl ammonium hydroxide, octyl dimethyl benzyl ammonium hydroxide, decyl dimethyl benzyl ammonium hydroxide, didodecyl dimethyl ammonium hydroxide, dioctadecyl dimethyl ammonium hydroxide, cetyl trimethyl ammonium chloride, tallow trimethyl ammonium hydroxide and coco trimethyl ammonium hydroxide as well as corresponding salts of these materials, fatty amines and fatty acid amides and their derivatives, basic pyridinium compounds, quaternary ammonium bases of benzimidazolines and polypropanolpolyethanol amines but is not limited to this list of cationic surfactants.
- the cationic surfactant may be selected from an amphoteric surfactant such as cocamidopropyl betaine, cocamidopropyl hydroxysulfate, cocobetaine, sodium cocoamidoacetate, cocodimethyl betaine, N-coco-3-aminobutyric acid and imidazolinium carboxyl compounds but is not limited to this list of amphoteric surfactants.
- an amphoteric surfactant such as cocamidopropyl betaine, cocamidopropyl hydroxysulfate, cocobetaine, sodium cocoamidoacetate, cocodimethyl betaine, N-coco-3-aminobutyric acid and imidazolinium carboxyl compounds but is not limited to this list of amphoteric surfactants.
- the cationic surfactants described above may be used individually or in combination.
- the cationic or amphoteric surfactant is dissolved in water and the resulting aqueous solution used as a component in aqueous or continuous phase of the oil in water emulsion of step I).
- the concentration of the cationic surfactant during the formation of the oil in water emulsion should be between 0.1% and 0.3% by weight of the oil phase concentration used.
- nonionic surfactants may be added during the formation of the oil in water emulsion.
- Suitable non-ionic surfactants are; polyoxyalkylene alkyl ethers such as polyethylene glycol long chain (12-14C) alkyl ether, polyoxyalkylene sorbitan ethers, polyoxyalkylene alkoxylate esters, polyoxyalkylene alkylphenol ethers, ethylene glycol propylene glycol copolymers, polyvinyl alcohol and alkylpolysaccharides, for example materials of the structure R 1 —O—(R 2 O) m -(G) n wherein R 1 represents a linear or branched alkyl group, a linear or branched alkenyl group or an alkylphenyl group, R 2 represent an alkylene group, G represents a reduced sugar, m denotes 0 or a positive integer and n represent a positive integer as described in U.S. Pat. No. 5,
- the oil phase containing the silicone textile treatment composition and the aqueous solution of the cationic or amphoteric surfactant are mixed together to form an oil in water emulsion.
- Mixing and emulsion formation may occur using any known techniques in the emulsion art.
- the oil phase and aqueous solution of the cationic or amphoteric surfactant are combined using simple stirring techniques to form an emulsion. Particle size of the oil in water emulsion may then be reduced before addition of the tetraalkoxysilane by any of the known in the art emulsification device.
- Useful emulsification devices in this invention can be homogenizer, sonolator, rotor-stator turbines, colloid mill, microfluidizer, blades, helix and combination thereof but is not limited to this list of emulsification devices.
- This further processing step reduces the particle size of the starting cationic oil in water emulsion to values ranging from 0.2 to 500 micrometers, with typical particle sizes ranging between 0.5 micrometers and 100 micrometers.
- the weight ratio of oil phase to aqueous phase in the emulsion can generally be between 40:1 and 1:50, although the higher proportions of aqueous phase are economically disadvantageous particularly when forming a suspension of microcapsules.
- the weight ratio of oil phase to aqueous phase is between 2:1 and 1:3.
- a phase inversion process can be used in which the oil phase is mixed with surfactant and a small amount of water, for example 2.5 to 10% by weight based on the oil phase, forming a water-in-oil emulsion which inverts to an oil-in-water emulsion as it is sheared. Further water can then be added to dilute the emulsion to the required concentration.
- Step II) involves adding a water reactive silicon compound to the oil in water emulsion.
- the water reactive silicon compound which is added to the emulsion of conditioning agent to form the microcapsules can be any silicon compound capable of polymerizing to form a silicon-containing network polymer.
- a silicon compound generally has an average of more than 2 silicon-bonded hydrolysable groups per molecule.
- the hydrolysable groups are preferably alkoxy groups bonded to silicon, although alternative hydroxyl groups such as acetoxy can be used.
- Preferred alkoxy groups are those having 1 to 4 carbon atoms, particularly ethoxy and methoxy groups.
- the water reactive silicon compound can for example comprise a tetraalkoxysilane or a mixture of a tetraalkoxysilane and an alkoxysilane having an amino- or quaternary ammonium-substituted alkyl group.
- the tetraalkoxysilane can for example be tetraethoxysilane (TEOS), which can be used in monomeric form or as a liquid partial condensate.
- the tetraalkoxysilane may be used in conjunction with one or more other water-reactive silicon compound having at least one, typically containing at least two, alternatively three, Si—OH groups or hydrolysable groups bonded to silicon, for example an alkyltrialkoxysilane such as methyltrimethoxysilane or a liquid condensate of an alkyltrialkoxysilane, or a (substituted alkyl)trialkoxysilane.
- an alkyltrialkoxysilane such as methyltrimethoxysilane or a liquid condensate of an alkyltrialkoxysilane, or a (substituted alkyl)trialkoxysilane.
- the water reactive silicon compound may also comprise an alkoxysilane having an amino- or quaternary ammonium-substituted alkyl group.
- alkoxysilane having an amino- or quaternary ammonium-substituted alkyl group.
- trialkoxysilanes containing substituted alkyl groups aminoalkyltrialkoxysilanes and quaternised aminoalkyltrialkoxysilanes.
- One preferred type of quaternised aminosilane has the formula R′ 3 —Si-A-N + R′′ 3 , wherein each group R′ is an alkoxy group having one or two carbon atoms, each group R′′ is an alkyl group having 1 to 18 carbon atoms, and A is a divalent organic radical of the formula C n H 2n where n is an integer from 1 to 18.
- aminoalkyltrialkoxysilanes and quaternised aminoalkyltrialkoxysilanes useful as alkoxysiloxanes in the present disclosure include those having the formula;
- the water reactive silicon compound can for example comprise 10-100% by weight tetraalkoxysilane and 0-90% trialkoxysilane, for example 10-95% tetraalkoxysilane and 5-90% trialkoxysilane, particularly a trialkoxysilane having an amino or quaternary ammonium substituted alkyl group.
- tetraalkoxysilane and 0-90% trialkoxysilane for example 10-95% tetraalkoxysilane and 5-90% trialkoxysilane, particularly a trialkoxysilane having an amino or quaternary ammonium substituted alkyl group.
- the tetraalkoxysilane and the trialkoxysilane are usually mixed before contacting the oil in water emulsion, so that a mixture of the tetraalkoxysilane and the trialkoxysilane is added to the emulsion.
- the tetraalkoxysilane and the trialkoxysilane can be added separately but simultaneously to the oil in water emulsion, or can be added sequentially to the oil in water emulsion. If they are added sequentially, the tetraalkoxysilane is preferably added before the trialkoxysilane having an amino or quaternary ammonium substituted alkyl group.
- the water reactive silicon compound polymerises at the oil/water interface of the emulsion to form a microcapsule having a core containing the silicone treatment composition and a silicate shell.
- the polymerization of the tetraalkoxysilane at the oil/water interface typically is a condensation reaction which may be conducted at acidic, neutral or basic pH.
- the water reactive compound is a mixture of a tetraalkoxysilane and a trialkoxysilane, for example an alkoxysilane having an amino- or quaternary ammonium-substituted alkyl group, both silanes copolymerize together.
- the condensation reaction is generally carried out at ambient temperature and pressure, but can be carried out at increased temperature, for example up to 95° C., and increased or decreased pressure, for example under vacuum to strip the volatile alcohol produced during the condensation reaction.
- Encapsulation of the oil phase can be achieved without any catalyst for the condensation reaction. However use of a catalyst may be preferred. Any catalyst known to promote the polymerization of the tetraalkoxysilane may be added to step III to form the shell of the microcapsule.
- the catalyst can be an oil soluble organic metal compound, for example an organic tin compound, particularly an organotin compound such as a diorganotin diester, for example dimethyl tin di(neodecanoate), dibutyl tin dilaurate or dibutyl tin diacetate, or alternatively a tin carboxylate such as stannous octoate, or an organic titanium compound such as tetrabutyl titanate.
- an organic tin compound particularly an organotin compound such as a diorganotin diester, for example dimethyl tin di(neodecanoate), dibutyl tin dilaurate or dibutyl tin diacetate
- An organotin catalyst can for example be used at 0.05 to 2% by weight based on the water reactive silicon compound.
- An organotin catalyst has the advantage of effective catalysis at neutral pH.
- the catalyst can be mixed with the oil phase components before it is emulsified, since this promotes condensation of the water reactive silicon compound at the surface of the emulsified oil phase droplets.
- a catalyst can alternatively be added to the emulsion before the addition of the water-reactive silicon compound, or simultaneously with the tetraalkoxysilane, or after the addition of the tetraalkoxysilane to harden and make more impervious the shell of silicon-based polymer which has been formed.
- the catalyst when used, can be added undiluted, or as a solution in an organic solvent such as a hydrocarbon, alcohol or ketone, or as a mutiphasic system such as an emulsion or suspension.
- the method of the present invention comprises applying to textiles the composition comprising suspended silicate shell microcapsules of a silicone textile treatment composition, as described above.
- the amount applied is a “hand improving” effective amount of the treatment composition and is applied to the fiber and/or textile by any convenient method.
- Hand for purposes of the invention means the softness and smoothness of the fabric.
- the treatment composition can be applied by padding, dipping, spraying or exhausting. After the treatment composition is applied to the fiber and/or fabric, it can be dried by heat.
- the textile treatment composition can be applied to the fiber and/or textile during making the fibers or textiles, or later by padding, which is the preferred method of this invention.
- the preferred concentration of the silicone treatment composition in the padding bath is in the range of 5 to 200 g/L, more preferably between 20 and 150 g/L and even more preferable between 40 and 120 g/L.
- carriers can be removed from the treatment composition for example by drying the composition at ambient or elevated temperature.
- auxiliary agents may be added along with the present treatment compositions to enhance deposition and/or adhesion of the treatment compositions to the textile surface.
- auxiliary agents may be selected from any catalysts known to effect condensation reactions of organopolysiloxanes, such as for example an acid or base.
- amine compounds may be added as a catalyst.
- the auxiliary agent may be selected from those considered as “coupling agents”, and in particular organosilane coupling agents. These may be organofunctional alkoxysiloxanes. Representative organofunctional alkoxysilanes useful as an auxiliary agent in the present disclosure include; DC Z6020, Z6030, Z6040, 9-6346 (Dow Corning Corporation, Midland Mich.).
- Additional auxiliary agents may be added along with the present treatment compositions to provide further enhancements to the treated textiles or fabrics.
- These additional auxiliary agents may be any compositions known in the art for providing water or oil repellency to textiles.
- Exemplary treatments include fluorocarbon based compounds such as various fluorocarbon oils, or fluorocarbon based polymers.
- Fibers and textiles that can be treated with the presently disclosed compositions include natural fibers such as cotton, silk, linen, and wool; regenerated fibers such as rayon and acetate; synthetic fibers such as polyesters, polyamides, polyacrylonitriles, polyethylenes, and polypropylenes; combinations, and blends thereof.
- the form of the fibers can include threads, filaments, tows, yarns, woven fabrics, knitted materials, non-woven materials, paper, carpet, and leather.
- compositions and methods as disclosed are particularly useful to treat industrial flame retardant textiles.
- flame retardants include Piruvatex® or Trevira® CS.
- the latter is a intrinsically flame retardant polyester.
- the flame retardant properties may be evaluated according to industry standardized norms such as DIN 4102-B2.
- DC593 fluid a blend of polydimethylsiloxane fluid (PDMS) having a viscosity of 100 mm 2 /s at 25° C. and MQ resin at weight ratio of 67/33) were emulsified in 59 g water containing 0.4 g solution of cetriammonium chloride at 29% 0.2 g of lauryl alcohol ethoxylate (3 EO units) and 0.2 g 2.5M HCl.
- the resulting emulsion was characterized as having median particle size D(v,0.5) in the range of 0.4 to 10 microns, depending on the level of the shear applied.
- 9.2 g of a mixture of TEOS was added with moderate agitation and allowed to polymerize for 18 hours.
- Capsules containing a core of resin—PDMS blend and a shell being composed of polymerized Si-network were obtained.
- Particle size measurements were made by laser diffraction technique using a “Mastersizer 2000” from Malvern Instruments Ltd., UK. (Further information on the particle size determination can be found in “Basic Principles of Particle Size Analytics”, Dr. Alan Rawle, Malvern Instruments Limited, WR14 1XZ, UK and the “Manual of Malvern Particle Size Analyser”. Particular reference is made to the user manual number MNA 0096, Issue 1.0, November 1994. All particle sizes indicated in the present application are mean average particle size according to D(v, 0.5) and are measured with a Malvern Mastersizer.
- Example 1 The composition from Example 1 was applied to different textiles (cotton treated with Piruvatex® or Trevira® CS): The textile was treated using a standard padding machine. The formulation from example 1 was diluted in water at 50 g/L and placed in the padding equipment. After the padding, the fabric was dried for 5 minutes at 120° C. and left at room temperature and controlled humidity for 24 hours before testing.
- the flame retardant properties has been tested according the DIN 4102-B2, Table 1 below shows the results for cotton fabric:
- Samples 1 to 17 were applied to cotton and polyester fabrics as described in example 2. Samples 1-3 are control experiments shown for reference. Samples 4 to 16 are representative silicone materials that were used for comparison. They are outside the scope of this invention. Sample 17 is the material described in Example 1.
- the treated textiles were assessed after drying for:
- compositions described herein as M1 to M19 were prepared following the process described in Example 1.
- DC 593 fluid or a blend of a silicone resin and poly-siloxane or a polysiloxane fluid was used.
- the compositions are listed in Table 3.
- the silanes were added with moderate agitation and allowed to polymerize for 18 h.
- Material M5 and M19 are non encapsulated emulsions (i.e neither TEOS, nor N1 is added). M5 and M19 are therefore out of the scope of this invention.
- compositions were applied to Polyester-Cotton and Tervira (polyester) flame retardant fabrics following the procedures described in example 2.
- the fabrics have been then tested for hydrophobicity, following a standard spray test described by the American Association of textile chemist and colorists (AATCC 22).
- AATCC 22 American Association of textile chemist and colorists
- the flame retardant properties were evaluated as described in example 2. Following notation has been used to describe the softness:
- Material M17 alone and in combination with a commercially available fluorocarbon PYMAGARD USD (PYMAG, S.A. Barcelona—Spain) was applied to cotton and polyester-cotton fabrics using a padding equipment.
- the M17 and fluorocarbon were mixed at a weight ratio of 1:2. Very good compatibility of M17 and fluorocarbon was observed.
- the dried fabrics were tested for hydrophobicity and softness in the manner as described above.
- the oil repellency was measured according to AATCC Test Method 118-2002. This method consists of placing drops of standard test liquids (a selected series of hydrocarbons) with varying surface tensions on the fabric surface, followed by an observation of the wetting, wicking, and contact angle. The textile was then ranked from 1 to 6, with a higher number indicating that the fabric has greater oil repellency. The results are provided in Table 5.
- Material FC is the fluorocarbon alone, which did not confer any softness to the fabrics.
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US13/124,325 Active 2030-04-21 US9005640B2 (en) | 2008-10-15 | 2009-10-15 | Fabric and fibre conditioning additives |
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JP (4) | JP5619754B2 (zh) |
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CN (3) | CN102186964A (zh) |
GB (1) | GB0818864D0 (zh) |
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US9005639B2 (en) | 2008-10-15 | 2015-04-14 | Dow Corning Corporation | Process for preparing silicate shell microcapsules |
US9192549B2 (en) | 2008-10-15 | 2015-11-24 | Dow Corning Corporation | Process for preparing silicate shell microcapsules |
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Also Published As
Publication number | Publication date |
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JP5619754B2 (ja) | 2014-11-05 |
US20110293677A1 (en) | 2011-12-01 |
JP2012505959A (ja) | 2012-03-08 |
US9192549B2 (en) | 2015-11-24 |
WO2010045446A2 (en) | 2010-04-22 |
KR20110070910A (ko) | 2011-06-24 |
EP2337838A1 (en) | 2011-06-29 |
JP2014167196A (ja) | 2014-09-11 |
KR101684441B1 (ko) | 2016-12-08 |
US20120021023A1 (en) | 2012-01-26 |
JP2012505976A (ja) | 2012-03-08 |
US20150174018A1 (en) | 2015-06-25 |
GB0818864D0 (en) | 2008-11-19 |
EP2358856A2 (en) | 2011-08-24 |
US20150174017A1 (en) | 2015-06-25 |
CN102186964A (zh) | 2011-09-14 |
CN102186963B (zh) | 2014-06-04 |
KR20110070888A (ko) | 2011-06-24 |
CN102224232A (zh) | 2011-10-19 |
EP2337839A1 (en) | 2011-06-29 |
US9005639B2 (en) | 2015-04-14 |
EP2358856B1 (en) | 2017-03-01 |
CN102224232B (zh) | 2013-06-12 |
JP2012505752A (ja) | 2012-03-08 |
WO2010045440A1 (en) | 2010-04-22 |
WO2010045446A3 (en) | 2010-07-29 |
US9005640B2 (en) | 2015-04-14 |
KR20110091672A (ko) | 2011-08-12 |
CN102186963A (zh) | 2011-09-14 |
WO2010045454A1 (en) | 2010-04-22 |
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