EP3083856A1 - Vernetzbare siliconzusammensetzung - Google Patents
Vernetzbare siliconzusammensetzungInfo
- Publication number
- EP3083856A1 EP3083856A1 EP13814093.4A EP13814093A EP3083856A1 EP 3083856 A1 EP3083856 A1 EP 3083856A1 EP 13814093 A EP13814093 A EP 13814093A EP 3083856 A1 EP3083856 A1 EP 3083856A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radicals
- acid
- radical
- silicone
- silicone 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.)
- Withdrawn
Links
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 85
- 239000000203 mixture Substances 0.000 title claims abstract description 78
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 13
- -1 polydimethylsiloxane Polymers 0.000 claims description 225
- 150000001875 compounds Chemical class 0.000 claims description 47
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 28
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 23
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 20
- 239000001257 hydrogen Substances 0.000 claims description 16
- 229910052739 hydrogen Inorganic materials 0.000 claims description 16
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 14
- 125000005842 heteroatom Chemical group 0.000 claims description 13
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 13
- 125000003118 aryl group Chemical group 0.000 claims description 12
- 150000002978 peroxides Chemical group 0.000 claims description 12
- 150000008064 anhydrides Chemical class 0.000 claims description 10
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 10
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 10
- 150000002596 lactones Chemical class 0.000 claims description 9
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 8
- 125000003342 alkenyl group Chemical group 0.000 claims description 7
- 150000001735 carboxylic acids Chemical class 0.000 claims description 6
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 claims description 6
- 125000005024 alkenyl aryl group Chemical group 0.000 claims description 4
- 150000001733 carboxylic acid esters Chemical class 0.000 claims description 4
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 claims description 2
- 125000002843 carboxylic acid group Chemical group 0.000 claims description 2
- 230000006855 networking Effects 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 238000013005 condensation curing Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 11
- 229920001971 elastomer Polymers 0.000 abstract 1
- 239000000806 elastomer Substances 0.000 abstract 1
- 150000003254 radicals Chemical class 0.000 description 58
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 27
- 238000004132 cross linking Methods 0.000 description 21
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 19
- 239000000945 filler Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 14
- 239000002253 acid Substances 0.000 description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 238000011067 equilibration Methods 0.000 description 11
- 229920002554 vinyl polymer Polymers 0.000 description 11
- 125000001931 aliphatic group Chemical group 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 150000003961 organosilicon compounds Chemical class 0.000 description 10
- 238000003786 synthesis reaction Methods 0.000 description 10
- 238000006459 hydrosilylation reaction Methods 0.000 description 9
- 239000003112 inhibitor Substances 0.000 description 9
- 239000002904 solvent Substances 0.000 description 9
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 8
- CREMABGTGYGIQB-UHFFFAOYSA-N carbon carbon Chemical compound C.C CREMABGTGYGIQB-UHFFFAOYSA-N 0.000 description 8
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 8
- 125000004122 cyclic group Chemical group 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 7
- 239000004215 Carbon black (E152) Substances 0.000 description 7
- 239000000654 additive Substances 0.000 description 7
- 230000000845 anti-microbial effect Effects 0.000 description 7
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 125000000524 functional group Chemical group 0.000 description 7
- 229930195733 hydrocarbon Natural products 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 7
- 239000013543 active substance Substances 0.000 description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 6
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 5
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 5
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 5
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 5
- 239000007943 implant Substances 0.000 description 5
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 5
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 5
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 5
- 239000000376 reactant Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- WUMMIJWEUDHZCL-UHFFFAOYSA-N 3-prop-2-enyloxolane-2,5-dione Chemical compound C=CCC1CC(=O)OC1=O WUMMIJWEUDHZCL-UHFFFAOYSA-N 0.000 description 4
- UQRONKZLYKUEMO-UHFFFAOYSA-N 4-methyl-1-(2,4,6-trimethylphenyl)pent-4-en-2-one Chemical group CC(=C)CC(=O)Cc1c(C)cc(C)cc1C UQRONKZLYKUEMO-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000004971 Cross linker Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 4
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 4
- PVEOYINWKBTPIZ-UHFFFAOYSA-N but-3-enoic acid Chemical compound OC(=O)CC=C PVEOYINWKBTPIZ-UHFFFAOYSA-N 0.000 description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 150000001732 carboxylic acid derivatives Chemical group 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 125000002868 norbornyl group Chemical group C12(CCC(CC1)C2)* 0.000 description 4
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- 125000003944 tolyl group Chemical group 0.000 description 4
- 125000005023 xylyl group Chemical group 0.000 description 4
- 125000006043 5-hexenyl group Chemical group 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 239000010839 body fluid Substances 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 235000019241 carbon black Nutrition 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 3
- 125000000596 cyclohexenyl group Chemical group C1(=CCCCC1)* 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- BITPLIXHRASDQB-UHFFFAOYSA-N ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane Chemical class C=C[Si](C)(C)O[Si](C)(C)C=C BITPLIXHRASDQB-UHFFFAOYSA-N 0.000 description 3
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 3
- 238000007306 functionalization reaction Methods 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 125000003518 norbornenyl group Chemical group C12(C=CC(CC1)C2)* 0.000 description 3
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 125000000962 organic group Chemical group 0.000 description 3
- 150000001451 organic peroxides Chemical class 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 3
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 3
- 229920001223 polyethylene glycol Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 235000019260 propionic acid Nutrition 0.000 description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 3
- 239000005871 repellent Substances 0.000 description 3
- 230000002940 repellent Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- XWJBRBSPAODJER-UHFFFAOYSA-N 1,7-octadiene Chemical compound C=CCCCCC=C XWJBRBSPAODJER-UHFFFAOYSA-N 0.000 description 2
- FRPZMMHWLSIFAZ-UHFFFAOYSA-N 10-undecenoic acid Chemical compound OC(=O)CCCCCCCCC=C FRPZMMHWLSIFAZ-UHFFFAOYSA-N 0.000 description 2
- SDJHPPZKZZWAKF-UHFFFAOYSA-N 2,3-dimethylbuta-1,3-diene Chemical compound CC(=C)C(C)=C SDJHPPZKZZWAKF-UHFFFAOYSA-N 0.000 description 2
- WSWCOQWTEOXDQX-UHFFFAOYSA-N 2,4-Hexadienoic acid Chemical compound CC=CC=CC(O)=O WSWCOQWTEOXDQX-UHFFFAOYSA-N 0.000 description 2
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 2
- YKTNISGZEGZHIS-UHFFFAOYSA-N 2-$l^{1}-oxidanyloxy-2-methylpropane Chemical group CC(C)(C)O[O] YKTNISGZEGZHIS-UHFFFAOYSA-N 0.000 description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 2
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- 125000004975 3-butenyl group Chemical group C(CC=C)* 0.000 description 2
- YYPNJNDODFVZLE-UHFFFAOYSA-N 3-methylbut-2-enoic acid Chemical compound CC(C)=CC(O)=O YYPNJNDODFVZLE-UHFFFAOYSA-N 0.000 description 2
- XJMMNTGIMDZPMU-UHFFFAOYSA-N 3-methylglutaric acid Chemical compound OC(=O)CC(C)CC(O)=O XJMMNTGIMDZPMU-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 108091006473 SLC25A33 Proteins 0.000 description 2
- 102100033827 Solute carrier family 25 member 33 Human genes 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
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- YZXBAPSDXZZRGB-DOFZRALJSA-N arachidonic acid Chemical compound CCCCC\C=C/C\C=C/C\C=C/C\C=C/CCCC(O)=O YZXBAPSDXZZRGB-DOFZRALJSA-N 0.000 description 2
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- 238000004364 calculation method Methods 0.000 description 2
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- 230000005764 inhibitory process Effects 0.000 description 2
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- 229910000510 noble metal Inorganic materials 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
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- 238000000746 purification Methods 0.000 description 2
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- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229920005573 silicon-containing polymer Polymers 0.000 description 2
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 2
- 235000010199 sorbic acid Nutrition 0.000 description 2
- 125000005504 styryl group Chemical group 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/12—Polysiloxanes containing silicon bound to hydrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/38—Polysiloxanes modified by chemical after-treatment
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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- 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
- C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
Definitions
- the present invention relates to a modified silicone composition, as well as the silicone elastomers prepared therefrom, which prevent or retard the formation of a biofilm on its surface.
- the medical industry uses a variety of silicone products, such as face masks, valves, tubing, catheters, liners, bandages, prostheses, bandages, implants, etc.
- bacterial colonization of the surface can occur over the course of its useful life, which in some cases can lead to infections.
- Antibiotic-resistant bacterial strains are an increasing problem as they lead to infections that are difficult to treat.
- the first step for colonization is the attachment of bacteria to the exogenous surface. After colonization, it can lead to biofilm formation, which is particularly problematic because the body's immune system or antibiotics by the protection of the biofilm, the bacteria are very difficult to attack.
- bactericidally active substances belongs to the state of the art in medical devices, whereby the administration of non-lethal antibiotic doses promotes the propagation of resistant bacteria.
- antibiotics, quaternary ammonium compounds, silver ions or silver or iodine are added, wherein the water solubility leads to washing out of the active substances, resulting in a controlled release system for killing bacteria in the environment of the implant or the component. Leaching gradually consumes the active substance, so that the entire system after some time can no longer have an antibacterial effect.
- O2009 / 019477A2 describes, as a further possibility, the coating of a medical implant with a biodegradable layer, which consists of a polymer and an acidic additive, which is mixed into the polymer.
- a biodegradable layer which consists of a polymer and an acidic additive, which is mixed into the polymer.
- a disadvantage of this technology is the ineffectiveness at a damaged site when the coating is released from the substrate.
- the active substance is washed out by contact with body fluids and loses its effectiveness over a certain period of time.
- Silicone elastomers to suppress or inhibit and without leaching or extraction of the active component takes place. Such crosslinked products are thus protected against the colonization and attack of microorganisms.
- crosslinkable silicone composition which comprises at least one silicone compound (X) of the general formula (I)
- R 1 is a hydrogen, a monovalent radical which optionally contains heteroatoms, such as alkyl, aryl, arylalkyl, alkylaryl, SiR 7 3 , polydimethylsiloxane,
- R 2 is identical or different and is a hydrogen, a monovalent radical containing optionally heteroatoms, such as alkyl, aryl, arylalkyl, alkylaryl, R 1 OOR 1 ,
- R 3 is identical or different, a hydrogen, a monovalent radical optionally containing heteroatoms, such as alkenyl, alkenylaryl, alkyl, aryl, arylalkyl, alkylaryl, -OSiR 7 3 ,
- R 7 is a monovalent radical which optionally contains heteroatoms, such as alkenyl, alkenylaryl, alkyl, aryl, arylalkyl, alkylaryl, -OSiR 7 3 ,
- R 8 is a divalent alkyl radical, n is a number between 1 and 30, m is a number between 0 and 6000, with the proviso that per molecule of the compound (X) at least one R 3 is an aliphatically unsaturated double bond or a hydrogen atom; preferably at least two R 3 is an aliphatically unsaturated double bond or a
- R 3 are an aliphatically unsaturated double bond or a hydrogen atom, and with the proviso that the silicone compound (X) is used in amounts such that the silicone composition can be between 0.005 mmol / g and 2 mmol / g of carboxylic acid groups or carboxylic acid esters hydrolyzable to carboxylic acids
- Carboxylic anhydrides based on the acid group contains; preferably between 0.01 mmol / g and 1 mmol / g, more preferably between 0.02 mmol / g and 0.085 mmol / g and particularly preferably between 0.04 mmol / g and 0.7 mmol / g.
- the silicone compound (X) contains at least one functional group in the siloxane moiety, which bonds to the silicone matrix during crosslinking.
- the product of the crosslinking reaction is thus a silicone elastomer, for example a polydimethylsiloxane network modified by acidic groups.
- the antimicrobial groups or agents are covalently attached to the silicone matrix, and the silicone gel does not show the disadvantages mentioned in the prior art. Thus leaching or extraction of the active component is no longer possible. Another advantage is that undesirable contamination of articles or media coming in contact with the silicone elastomer is prevented.
- the acidic effect of the compound (X) is based on containing a carboxylic acid function which may be either unprotected or present as a carboxylic acid ester.
- R 1 for alkyl radicals are methyl, ethyl, propyl, isopropyl, tert. Butyl, n-pentyl, iso-pentyl, neo-pentyl, tert. Pentyl, n-octyl, 2-ethylhexyl, 2, 2, -trimethylpentyl, n-nonyl and octadecyl; Cycloalkyl radicals, such as cyclopentyl, cyclohexyl, cycloheptyl, norbornyl,
- Adamantylethyl or bornyl radical Aryl or alkaryl radicals, such as phenyl, ethylphenyl, tolyl, xylyl, mesityl or Naphthyl radical; Aralkyl radicals, such as benzyl, 2 - phenylpropyl or phenylethyl radical.
- R 1 with heteroatoms are halogenated and / or with organic groups functionalized derivatives of the above radicals, such as 3, 3, 3 -trifluoropropyl, 3-iodopropyl, 3-isocyanatopropyl, aminopropyl, methacryloxymethyl or cyanoethyl radical, silyl radicals such as trimethylsilyl, tert-butyl-dimethylsilyl, Tetraethylsilyl, triisopropylsilyl, tert-butyl diphenylsilyl, polydimethylsiloxane radicals such as trimethylsilyl or vinyldimethyltermintechnisch polydimethylsiloxanes trimethylsilyl - or vinyldimethyltermintechnisch polydimethylsiloxane vinylmethylsiloxane copolymers, trimethylsilyl or vinyldimethyltermintechnisch polydimethylsiloxane hydrogenmethylsiloxane copolymers, trimethylsilyl or
- Preferred radicals R 1 are methyl, ethyl, phenyl, silyl and polydimethylsiloxane radicals and also anhydrides or lactones from further carboxyl or hydroxyl groups present in the same molecule.
- Particularly preferred radicals R 1 are silyl and Polydimethylsiloxanrest and anhydrides or lactones of further, present in the same molecule carboxyl or hydroxyl groups.
- R 2 for alkyl radicals are methyl, ethyl, propyl, isopropyl, tert. Butyl, n-pentyl, iso-pentyl, neo-pentyl, tert.
- Adamantylethyl or bornyl radical Aryl or alkaryl radicals, such as phenyl, ethylphenyl, tolyl, xylyl, mesityl or naphthyl radical; Aralkyl radicals, such as benzyl, 2-phenylpropyl or phenylethyl.
- R 2 with heteroatoms are halogenated and / or with organic groups functionalized derivatives of the above radicals, such as 3, 3, 3-trifluoropropyl, 3-iodopropyl; 3-isocyanatopropyl, aminopropyl, methacryloxymethyl or cyanoethyl radical, alkylcarboxy radicals such as - (CH 2 ) n -COOH, - (CH 2 ) n -COOSiMe 3 , - (CH 2 ) n - COOSiEt 3 , - (CH 2 ) n -COOSi i Pr 3 , - (CH 2 ) n - COOSd ⁇ Bua, - (CH 2 ) n -COO-trimethylsilyl or vinyldimethyl terminated
- Polydimethylsiloxanes - (CH 2 ) n -C00- trimethylsilyl- or vinyldimethyl-terminated polydimethylsiloxane-vinylmethylsiloxane copolymers, - (CH) n -C00- trimethylsilyl- or vinyldimethylterminated polydimethylsiloxane-hydrogenmethylsiloxane copolymers, - (CH 2 ) n -COO-trimethylsilyl- or vinyldimethyl-terminated polydimethylsiloxane
- Phenylmethylsiloxane copolymers - (CH 2 ) n -COO-trimethylsilyl- or vinyldimethyl-terminated polydimethylsiloxane-phenylmethylsiloxane-methylhydrogensiloxane copolymers,
- Hydroxyalkyl radicals such as - (CH 2 ) n -OH, where n can assume the abovementioned values.
- R 1 is hydrogen and at the same time an R 2 contains a not converted to carboxylic acid carboxyl group
- the anhydride of the two carboxyl groups can be formed or used.
- radicals R 2 are hydrogen, methyl-ethyl, phenyl, silyl and polydimethylsiloxane radicals and also anhydrides or lactones from further carboxyl or hydroxyl groups present in the same molecule.
- Particularly preferred radicals R 2 are silyl and polydimethylsiloxane radicals and also anhydrides or lactones from further carboxyl or hydroxyl groups present in the same molecule.
- R 3 for alkyl radicals are methyl, ethyl, propyl, isopropyl, tert. Butyl, n-pentyl, iso-pentyl, neo-pentyl tert. Pentyl, n-octyl, 2-ethylhexyl, 2,2,4-
- R 3 partly with heteroatoms, are halogenated and / or organically functionalized derivatives of the above radicals, such as 3, 3, 3-trifluoropropyl, 3-iodopropyl, 3-isocyanatopropyl, aminopropyl, methacryloxymethyl or cyanoethyl radical, Alkenyl and / or alkynyl radicals, such as vinyl, allyl, isopropenyl, 3-butenyl, 2,4-pentadienyl, butadienyl, 5-hexenyl, undecenyl, ethynyl, propynyl and hexynyl radicals; Cycloalkenyl radicals, such as cyclopentenyl, cyclohexenyl, 3-cyclohexenylethyl, 5-bicycloheptenyl, norbornenyl, 4-cyclooctenyl or cyclooctadienyl radical; Alkenyl
- radicals R 3 are hydrogen, methyl, phenyl, vinyl and 3,3,3-trifluoropropyl, wherein the -O-SiR 3 radical of these radicals is also preferred.
- Particularly preferred radicals R 3 are the methyl and the vinyl radical, with the ⁇ 0-SiR 3 radical of these radicals being preferred.
- R 7 examples are alkyl radicals, such as methyl, ethyl, propyl, isopropyl, tert. Butyl, n-pentyl, iso-pentyl, neo-pentyl tert. Pentyl, n-octyl, 2-ethylhexyl, 2,2,4-
- R 7 are halogenated and / or organic-functionalized derivatives of the above radicals, such as 3, 3, 3 -trifluoropropyl, 3-iodopropyl, 3-isocyanatopropyl, aminopropyl,
- Cyclooctadienyl radical Alkenylaryl radicals, such as styryl or styrylethyl radical, and halogenated and / or heteroatom-containing derivatives of the above radicals, such as 2-bromovinyl, 3-bromo-1-propynyl, 1-chloro-2-methylallyl, 2- (chloromethyl) allyl , Styryloxy, allyloxypropyl, 1-
- radicals R 7 are methyl, ethyl, isopropyl, tert-butyl, phenyl. Particularly preferred radicals R 7 are methyl, ethyl, and phenyl.
- R 8 are bivalent alkyl radicals such as methylene, ethylene, propylene, butylene, pentylene or the hexylene radical, as well as halogenated and / or functionalized with organic groups derivatives of the preceding radicals.
- Preferred radicals R 8 are the methylene and the ethylene radical. Particularly preferred is the methylene radical.
- the index n is a number between 1 and 30, preferably between 1 and 18, more preferably between 1 and 5.
- the index m refers to the degree of polymerization of the siloxane, where m is a number between 0 and 6000, preferably between 0 and 1000 and more preferably between 1 and 100.
- the preparation of compound (X) can be carried out in various ways, the synthesis route having no effect on the activity. You can use all synthetic routes that were previously described in textbooks and / or publications.
- carboxylic acids and their derivatives which are reacted in one or more steps to the compound (X) can be used.
- suitable carboxylic acids and their derivatives are: formic acid, ethanoic acid, oxoethanoic acid, propionic acid, propionic acid,
- Cyclopropanecarboxylic acid 2-methylpropanoic acid, acetylenedicarboxylic acid, 2, 4-pentadienoic acid, 2-pentenoic acid, 3-pentenoic acid, pentenoic acid, 2-pentynoic acid, 3-pentynoic acid, 4- Pentynoic acid, 2-pentanedioic acid, 2-methylenesuccinic acid,
- Acrylic acid methacrylic acid, 3, 3 -dimethylacrylic acid,
- maleic acid methylmaleic acid, succinic acid, allylic succinic acid, cyclobutanoic acid, ethylmalonic acid, ethenylmalonic acid, ethynylmalonic acid, glutaric acid, 2-
- Cyclopentenecarboxylic acid 3-cyclopentenecarboxylic acid, 2-hexynoic acid, sorbic acid, allylmalonic acid,
- Fluorobenzoic acid bromo-iodobenzoic acid, 6-heptinic acid, 2,2-dimethyl-4-pentanoic acid, 6-heptenoic acid, 2,2-dimethylglutaric acid, 3,3-dimethylglutaric acid, heptanedioic acid, bromomethylbenzoic acid, chloromethylbenzoic acid, octenoic acid, phenylpropionic acid, sebacic acid, decanoic acid, Decenoic acid, 10-bromodecanoic acid, 2-bromodecanoic acid, undecanoic acid, 10
- Undecenoic acid 10-undecinic acid, dodecanoic acid, dodecanedioic acid, 12-bromododecanoic acid, 2-bromododecanoic acid, 2-bromohexadecanoic acid, 16-bromohexadecanoic acid, linolenic acid, elaidic acid, oleic acid, arachidonic acid, erucic acid, 3-allyldihydrofuran-2, 5 -dione, 3-vinyldihydrofuran 2, 5-dione, and the methyl, ethyl, trimethylsilyl, triethylsilyl, siloxy esters of the abovementioned carboxylic acids.
- the carboxylic acid used contains an unsaturated group susceptible to hydrosilylation.
- Hydrosilylation catalysts preferably those the platinum are reacted with Si-H-containing cyclo, oligo- or polysiloxanes.
- carboxylic acid derivatives which no longer have an acidic hydrogen atom in the molecule (carboxylic acid esters, anhydrides, lactones).
- the vinyl group or vinyl groups in compound (X) can be introduced by suitable reactions. An example of this is the prior art equilibration reaction between siloxanes.
- the compound of carboxylic acid or derivatives thereof obtained in the first step is reacted with a cyclo-, oligo- or polysiloxane which can carry both terminal and / or chain-attached, aliphatically unsaturated groups.
- Silicone compositions are used, if they contain appropriate amounts of components (X).
- silicone compositions according to the invention are addition-crosslinking, and comprising, in addition to component (X)
- Organosilicon compound containing at least two radicals with aliphatic carbon-carbon multiple bonds
- Si-bonded hydrogen atoms at least two Si-bonded hydrogen atoms, (C) an organosilicon compound containing SiC-bonded radicals having aliphatic carbon-carbon multiple bonds and Si-bonded hydrogen atoms, and
- Silicone compositions can be one-component silicone compositions as well as two-component or multi-component silicone compositions.
- the individual components of the compositions of the invention may contain all components in any combination, generally provided that one component does not simultaneously comprise aliphatic multiple bond siloxanes, Si-bonded hydrogen siloxanes and catalyst, ie, substantially not simultaneously the components (A ), (B) and (D) or (C) and (D).
- the compositions according to the invention are one-component compositions.
- the compounds (A) and (B) or (C) used in the compositions according to the invention are chosen such that crosslinking is possible.
- compound (A) has at least two aliphatically unsaturated radicals and (B) at least three Si-bonded hydrogen atoms
- compound (A) has at least three aliphatically unsaturated radicals and siloxane (B) at least two Si-bonded hydrogen atoms
- siloxane (C) is used which aliphatically unsaturated radicals and Si-bonded
- mixtures of (A) and (B) and (C) are those with the above mentioned ratios of aliphatically unsaturated radicals and Si-bonded hydrogen atoms.
- the compound (A) used according to the invention may be silicon-free organic compounds having preferably at least two aliphatically unsaturated groups as well as organosilicon compounds having preferably at least two aliphatically unsaturated groups or mixtures thereof.
- silicon-free organic compounds (A) are, 1, 3, 5-trivinylcyclohexane, 2, 3-dimethyl-1, 3-butadiene, 7-methyl-3-methylene-l, 6-octadiene, 2-methyl-l, 3-butadiene, 1, 5-hexadiene, 1, 7-octadiene, 4, 7-methylene-4, 7,8,9-tetrahydroindene,
- Silicone compositions as component (A) at least one aliphatically unsaturated organosilicon compound, wherein all aliphatic unsaturated organosilicon compounds previously used in addition-crosslinking compositions, such as urea segmented silicone block copolymers, silicone block copolymers with amide segments and / or imide segments and / or ester-amide segments and / or polystyrene segments and / or or silarylene segments and / or carborane segments and silicone graft copolymers having ether groups.
- organosilicon compounds previously used in addition-crosslinking compositions such as urea segmented silicone block copolymers, silicone block copolymers with amide segments and / or imide segments and / or ester-amide segments and / or polystyrene segments and / or or silarylene segments and / or carborane segments and silicone graft copolymers having ether groups.
- organosilicon compounds (A) which have SiC-bonded radicals with aliphatic carbon-carbon multiple bonds, it is preferable to use linear or branched organopolysiloxanes of units of the general formula (II)
- R 4 a R 5 b used SiO (4-ab) / 2 (II), wherein
- R 4 are independently, the same or different, an organic or inorganic radical free of aliphatic carbon-carbon multiple bonds
- R 5 are independently, identically or differently a monovalent, substituted or unsubstituted, SiC-bonded hydrocarbon radical having at least one aliphatic carbon-carbon multiple bond, a is 0, 1, 2 or 3, and
- b 0, 1 or 2
- the radical R 4 may be monovalent or polyvalent radicals, the polyvalent radicals, such as, for example, bivalent, trivalent and tetravalent radicals, then several, such as two, three or four, linking together siloxy units of formula (II).
- R 4 are the monovalent radicals -F, -Cl, -Br, OR 6 , -CN, -SCN, -NGO and SiC-bonded, substituted or unsubstituted hydrocarbon radicals which are bonded to oxygen atoms or the group -C (O ) - may be interrupted, as well as divalent, on both sides according to formula (II) Si - bound radicals.
- radical R 4 is SiC-bonded, substituted hydrocarbon radicals, preferred substituents are halogen atoms, phosphorus-containing radicals, cyano radicals, -OR 6 , -NR 6 -, -NR 6 2 , -NR 6 -C (O) -NR 6 2 , -C (O) -NR 6 2 , -C (O) R 6 , -C (O) OR 6 , -S0 2 -Ph and -C 6 F 5 .
- radicals R 4 are alkyl radicals, such as the methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-bulyl, tert-butyl, n-pentyl, iso-pentyl , neo-pentyl, tert-pentyl,
- Hexyl radicals such as the n-hexyl radical, heptyl radicals, such as the n-heptyl radical, octyl radicals, such as the n-octyl radical and iso-octyl radicals, such as the 2, 2, 4-trimethylpentyl radical, nonyl radicals, such as the n-nonyl radical, decyl radicals, such as n-decyl radical, dodecyl radicals, such as the n-dodecyl radical, and octadecyl radicals, such as the n-octadecyl radical, cycloalkyl radicals, such as cyclopentyl, cyclohexyl, cycloheptyl and methylcyclohexyl radicals,
- Aryl radicals such as the phenyl, naphthyl, anthryl and phenanthryl radical, alkaryl radicals, such as o-, m-, p-tolyl radicals, xylyl radicals and ethylphenyl radicals, and aralkyl radicals, such as the benzyl radical, the ⁇ - and the ⁇ -phenylethyl radical.
- substituted radicals R 4 are haloalkyl radicals, such as the 3, 3, 3-trifluoro-n-propyl radical, the 2,2,2,2 ', 2, 2 , - Hexafluoroisopropyl radical, the heptafluoroisopropyl radical,
- Halogenaryl radicals such as the o-, m- and p-chlorophenyl radical, - (CH 2 ) - N (R 6 ) C ( O ) NR 6 2 , - (CH 2 ) o -C ( O ) NR e 2 , - ( CH 2) 0 -C (O) R 6, - (CH 2) 0 - C (O) OR 6, - (CH 2) o -C (0) NR 6 2, - (CH 2) -C (O ) - (CH 2 ) p C (O) CH 3; - (CH 2) -O-CO-R 6, (CH 2) -NR 6 - (CH 2) p-NR 6 2, - (CH 2) o -0- (CH 2) p CH (OH) CH 2 OH,
- R 4 are divalent radicals which are Si-bonded on both sides according to formula (II) and which are derived from the monovalent examples mentioned above for radical R 4 in that an additional bond takes place by substitution of a hydrogen atom, examples of such radicals - (CH 2 ) -, -CH (CH 3 ) -, -C (CH 3 ) 2 -, -CH (CH 3 ) -CH 2 -, -C 6 H 4 -, -CH (Ph) -CH 2 -, -C (CF 3 ) 2 -, - (CH 2 ) 0 -C 6 H 4 - (CH 2 ) G -, - (CH 2 ) 0 -C s H 4 -C 6 H 4 - (CH 2 ) 0 -, - (CH 2 0) p, (CH 2 CH 2 0) o, - (CH 2) o -0 x -C 6 H 4 -S0 2 - C 6 H 4
- Radical R 4 is preferably a monovalent, Sic-bonded, optionally substituted, aliphatic carbon-carbon multiple bond free
- Carbon atoms in particular the methyl or phenyl radical.
- the radical R 5 may be any groups accessible to an addition reaction (hydrosilylation) with a SiH-functional compound. If R 5 is SiC-bonded, substituted
- Radical R 5 is preferably alkenyl and alkynyl groups having 2 to 16 carbon atoms, such as vinyl, allyl, methallyl, 1-propenyl, 5-hexenyl, ethynyl, butadienyl, hexadienyl, cyclopentenyl Cyclopentadienyl, cyclohexenyl, vinylcyclohexylethyl, divinylcyclohexylethyl, norbornenyl, vinylphenyl and styryl radicals, vinyl, allyl and hexenyl radicals being particularly preferably used.
- the molecular weight of the component (A) can vary within wide limits, for example between 10 2 and 10 e g / mol.
- constituent (A) may be a relatively low molecular weight alkenyl-functional oligosiloxane, such as 1,2-divinyltetramethyldisiloxane, but may also be a high-polymer polydimethylsiloxane having chain-link or terminal Si-bonded vinyl groups, for example having a molecular weight of 10 5 g / mol (number average determined by NMR).
- the structure of the component (A) forming molecules is not specified;
- the structure of a relatively high molecular weight that is to say oligomeric or polymeric siloxane, can be linear, cyclic, branched or even resinous, network-like.
- Linear and cyclic polysiloxanes are preferably composed of units of the formula R 4 3 SiOi / 2 , R 5 R 2 SiOi / 2 , R 5 R 4 SiOi / 2 and R 4 2 Si0 2/2 , where R 4 and R 5 are as above have meaning indicated.
- Branched and network-like polysiloxanes additionally contain trifunctional and / or tetrafunctional units, those of the formulas R 4 Si0 3/2 , R 5 Si0 3/2 and Si0 / 2 being preferred. Of course, mixtures can also different, the criteria of the component (A) sufficient siloxanes are used.
- component (A) More preferably as component (A), the use is more vinyl functional, substantially linear
- Polydiorganosiloxanes having a viscosity of from 0.01 to 500,000 Pa.s, more preferably from 0.1 to 100,000 Pa.s, each at 25 ° C.
- organosilicon compound (B) As organosilicon compound (B), it is possible to use all hydrogen-functional organosilicon compounds which have hitherto also been used in addition-crosslinkable compositions.
- organopolysiloxanes (B) which have Si-bonded hydrogen atoms it is preferable to use linear, cyclic or branched organopolysiloxanes of units of the general formula (III)
- R 4 has the meaning given above
- c 0.1 2 or 3
- d 0, 1 or 2
- the organopolysiloxane (B) used in the invention contains Si-bonded hydrogen in the range of 0.04 to 1.7 weight percent, based on the total weight of the organopolysiloxane (B).
- component (B) may also vary within wide limits, such as between 10 2 and 10 6 g / mol.
- constituent (B) may be, for example, a relatively low molecular weight SiH-functional oligosiloxane, such as tetramethyldisiloxane, but also a high-polymer polydimethylsiloxane having SiH groups via a chain or terminal or a silicone resin having SiH groups.
- the structure of the component (B) forming molecules is not fixed;
- the structure of a relatively high molecular weight, that is to say oligomeric or polymeric SiH-containing siloxane can be linear, cyclic, branched or even resinous, network-like.
- Linear and cyclic polysiloxanes (B) are preferably composed of units of the formula R 3 SiOi / 2 , HR 4 2 Si0 1/2 , HR 4 Si0 2/2 and R 2 Si0 2/2 , wherein R 4 has the meaning given above .
- Branched and network-like polysiloxanes additionally contain trifunctional and / or tetrafunctional units, those of the formulas R 4 Si0 3/2, hsi0 are 3/2 and Si0 / 2 is preferred, wherein R 4 has the meaning given above.
- component (B) sufficient siloxanes can be used.
- the molecules which form component (B) may optionally also contain aliphatically unsaturated groups at the same time.
- SiH functional compounds such as tetrakis (dimethylsiloxy) silane and tetramethylcyclotetrasiloxane
- SiH-containing siloxanes such as poly (hydrogenmethyl) siloxane and Poly (dimethylhydrogenmethyl) siloxane having a viscosity at 25 ° C of 10 to 10,000 mPa »s, or analogous SiH-containing compounds in which a part of the methyl groups by 3, 3, 3 -Trifluorpropyl- or phenyl groups is replaced.
- Component (B) is preferably present in the crosslinkable silicone compositions according to the invention in an amount such that the molar ratio of SiH groups to aliphatically unsaturated groups of (A) is from 0.1 to 20, more preferably from 1.0 to 5.0, lies.
- the components (A) and (B) used according to the invention are commercially available products or can be prepared by processes customary in chemistry.
- silicone compositions according to the invention can be organopolysiloxanes
- Silicone compositions all three components (A), (B) and
- siloxanes (C) are used, these are preferably those of units of the general formulas (IV), (V) and (VI)
- f 0, 1, 2 or 3
- g 0, 1 or 2
- h is 0, 1 or 2, with the proviso that per molecule at least 2 radicals R 5 and at least 2 Si-bonded hydrogen atoms are present.
- organopolysiloxanes (C) are those of S0 4 /, R 4 3 SiOi / 2 , R 2 R 5 SiOi / 2 and R 2 HSiOi / 2 units, so-called MP resins, these resins additionally having RSiO 3 / 2 - and R 2 SiO units may contain, as well as linear organopolysiloxanes consisting essentially of R 4 2 R 5 SiOi / 2 -, R 4 2 SiO and R 4 HSiO units with R 4 and R 5 is the same meaning as above.
- the organopolysiloxanes (C) preferably have an average viscosity of from 0.01 to 500,000 Pa.s, more preferably from 0.1 to 100,000 Pa.s, each at 25 ° C.
- Organopolysiloxanes (C) can be prepared by methods customary in chemistry.
- Component (D) may be a platinum group metal, for example platinum, rhodium, ruthenium, palladium, osmium or iridium, an organometallic compound or a combination thereof.
- component (D) are compounds such as hexachloroplatinic acid, platinum dichloride, platinum acetylacetonate, and complexes of said compounds encapsulated in a matrix or a cup-like structure.
- the low molecular weight platinum complexes of the organopolysiloxanes include 1, 3 -diethenyl-1,1,3,3-tetramethyldisiloxane complexes with platinum.
- platinum phosphite complexes platinum-phosphine complexes or alkylplatinum complexes. These compounds may be encapsulated in a resin matrix.
- concentration of component (D) is sufficient to catalyze the hydrosilylation reaction of components (A) and (B) upon exposure to produce the heat required herein in the described process.
- the amount of component (D) may be between 0.1 and 1000 parts per million (ppm), 0.5 and 100 ppm, or 1 and 25 ppm of the platinum group metal, depending on the total weight of the components.
- the cure rate may be low when the platinum group metal component is below 1 ppm. The use of more than 100 ppm of the platinum group metal is uneconomical or may reduce the stability of the adhesive formulation.
- crosslinkable silicone compositions according to the invention can also be crosslinked peroxide.
- crosslinked peroxide there is the
- component (H) Contain silicone compositions.
- crosslinkers in the sense of component (H) it is possible to use all typical peroxides corresponding to the prior art.
- component (H) are dialkyl peroxides, such as 2,5-dimethyl-2,5-di (tert-butylperoxy) hexane, 1,1-di-
- hydroxydicyclohexyl peroxide 3, 6-dicyclohexylidene-1, 2,4,5-tetroxane, di-tert-butyl peroxide, tert-butyl tert-triptyl peroxide and tert-butyl triethyl-5-methylperoxide, diaralkyl peroxides such as dicumyl peroxide, alkylaralkyl peroxides, such as tert-butyl cumyl peroxide and a, a'-di (tert-butyl peroxy) -m / p-diisopropylbenzene, alkyl acyl peroxides such as t-butyl perbenzoate, and diacyl peroxides such as dibenzoyl peroxide, bis (2-methylbenzoyl peroxide), bis (4-methylbenzoyl peroxide) and until- (2,4-dichlorobenzoyl peroxide).
- crosslinkable silicone compositions according to the invention are preferably between 0.1 and 5.0% by weight, more preferably between 0.5 and 1.5% by weight. Preference is thus given to the crosslinkable silicone compositions according to the invention, characterized in that the crosslinker (H) is contained from 0.1 to 5.0% by weight and represents an organic peroxide or a mixture of organic peroxides.
- the crosslinkable silicone compositions according to the invention may also be condensation-crosslinked by addition of component (X)
- All of the peroxide-, addition- and condensation-crosslinking silicone compositions of the invention described above may optionally contain reinforcing fillers as component (E), such as fumed or precipitated silicas having BET surface areas of at least 50 m 2 / g, and carbon blacks and activated carbons such as furnace carbon black and acetylene Carbon black, preference being given to pyrogenic and precipitated silicas having BET surface areas of at least 50 m 2 / g.
- the silicic acid fillers mentioned can have a hydrophilic character or be hydrophobized by known processes.
- the content of the crosslinkable composition of active reinforcing filler according to the invention (E) is in the range of 0 to 70% by weight, preferably 0 to 50% by weight.
- the crosslinkable silicone compositions according to the invention are characterized in that the filler (E) is surface-treated.
- hydrophobization is achieved by methods known in the art for the hydrophobization of finely divided fillers.
- the hydrophobing can be carried out, for example, either before incorporation into the polyorganosiloxane or else in the presence of a polyorganosiloxane according to the in situ process. Both methods can be carried out both in a batch process and continuously.
- Preferred hydrophobizing agents are organosilicon compounds which are capable of reacting with the filler surface to form covalent bonds or which are permanently physisorbed on the filler surface.
- water repellents are alkylchlorosilanes, such as
- Trimethylsilanol Trimethylsilanol; cyclic diorgano (poly) siloxanes, such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane; linear diorganopolysiloxanes such as trimethylsiloxy-terminated dimethylpolysiloxanes and silanol or alkoxy-terminated dimethylpolysiloxanes; Disilazane, how
- Hexaalkyldisilazanes in particular hexamethyldisilazane
- catalytically active additives such as, for example, amines, metal hydroxides and water, also takes place in order to accelerate hydrophobing.
- the hydrophobing can be carried out, for example, in one step using one or a mixture of several water repellents, but also by using one or more hydrophobizing agents in several steps.
- Preferred fillers (E) exhibit due to a
- Surface treatment has a carbon content of at least 0.01 to at most 20 wt .-%, preferably between 0.1 and 10 wt .-%, particularly preferably between 0.5 to 5 wt .-% to.
- the filler (E) is a surface-treated silica comprising 0.01 to 2% by weight of Si-bonded, aliphatically unsaturated groups.
- these are Si-bonded vinyl groups.
- the component (E) is preferably used as a single or also preferably as a mixture of a plurality of finely divided fillers.
- the silicone compositions according to the invention may optionally contain, as constituents, further additives (F) in an amount of up to 70% by weight, preferably 0.0001 to 40% by weight.
- additives (F) may include, for example, inactive fillers, resinous polyorganosiloxanes other than siloxanes (A), (B), (C), (E) and (X), fungicides, fragrances, rheological additives, inhibitors and stabilizers for the targeted adjustment of the processing time, light-off temperature and crosslinking rate, corrosion inhibitors,
- Oxidation inhibitors light stabilizers, flame retardants and means for influencing the electrical properties dispersing agents, solvents, adhesion promoters, pigments, dyes, plasticizers, organic polymers, heat stabilizers, etc. be.
- additives such as quartz powder, diatomaceous earth, clays, chalk, lithopone, graphite, metal oxides, metal carbonates, sulfates, metal salts of carboxylic acids, metal dusts, fibers such as glass fibers, plastic fibers, plastic powder, Metallst ube, dyes, pigments, etc.
- thermally conductive fillers may also be thermally conductive or electrically conductive.
- thermally conductive fillers are aluminum nitride; alumina; Barium titanate; beryllium oxide; boron nitride; Diamond; Graphite; magnesium oxide; particulate metal such as copper, gold, nickel or silver; silicon carbide; tungsten carbide; Zinc oxide and a combination thereof.
- Thermally conductive fillers are known in the art and commercially available.
- CB-A20S and Al-43 -Me are alumina fillers in various particle sizes, commercially available from Showa-Denko, and AA-04, AA-2 and AA1 8 are alumina fillers commercially available from Sumitomo Chemical Company are available.
- Silver fillers are commercially available from Metalor Technologies U.S.A. Corp. of Attleboro, Massachusetts, U.S.A. Boron nitride fillers are commercially available from Advanced Ceramics Corporation, Cleveland, Ohio, U.S.A. A combination of fillers with different particle sizes and different particle size distribution can be used.
- Inhibitors and stabilizers serve to adjust the processing time, light-off temperature and Crosslinking rate of the invention
- Silicone compositions These inhibitors and stabilizers have long been known in the art.
- Examples of common inhibitors are acetylenic alcohols, such as 1-ethynyl-1-cyclohexanol, 2-methyl-3-butyn-2-ol and 3,5-dimethyl-1-hexyn-3-ol, 3-methyl-1-dodecyne-3 - ol,
- Polymethylvinylcyclosiloxanes such as 1,3,5,7-
- Tetravinyltetramethyltetracyclosiloxane low molecular weight silicone oils with methylvinyl-SiO ⁇ groups and / or F ⁇ vinylSiO].
- ⁇ - end groups like divinyltetramethydisiloxane
- alkyl maleates such as diallyl maleates, dimethyl maleate and diethyl maleate
- alkyl fumarates such as diallyl fumarate and diethylfurmarate
- organic hydroperoxides such as cumene hydroperoxide, tert-butyl hydroperoxide and pinane hydroper
- inhibitor additives depends on their chemical structure, so that the concentration must be determined individually.
- Inhibitors and inhibitor mixtures are preferably added in a proportion of 0.00001% to 5% based on the total weight of the mixture, preferably 0.00005 to 2% and particularly preferably 0.0001 to 1
- the silicone composition may additionally optionally contain a solvent (G).
- a solvent G
- Suitable solvents (G) are known in the art and are commercially available.
- the solvent (G) may be, for example, an organic solvent having 3 to 20 carbon atoms.
- solvents (G) include aliphatic hydrocarbons such as nonane, decalin and dodecane; aromatic hydrocarbons such as mesitylene, xylene and toluene; Esters such as ethyl acetate and butyrolactone; Ethers such as n-butyl ether and polyethylene glycol monomethyl ester; Ketones such as methyl isobutyl ketone and methyl pentyl ketone; Silicone fluid such as linear, branched and cyclic polydimethylsiloxanes and combinations of these solvents.
- the optimum concentration of a particular solvent (G) in the silicone composition can be easily determined by routine experimentation. Depending on the weight of the compound, the amount of solvent (G) may be between 0 and 95% and between 1 and 95%, respectively.
- crosslinkable silicone compositions of the invention have the advantage that they can be prepared in a simple process using readily available starting materials and thus economically.
- the crosslinkable silicone compositions according to the invention have the further advantage that they also have a good storage stability as one-component formulation at 25 ° C. and ambient pressure and crosslink rapidly only at elevated temperature.
- Silicone compositions have the advantage that, when mixed with two components, they produce a crosslinkable silicone composition after mixing the two components, whose processability remains at 25 ° C. and ambient pressure over a long period of time, ie exhibit extremely long pot life, and crosslinks rapidly only at elevated temperature.
- silicone rubbers according to the invention are prepared by methods known in the art.
- Manufacturable silicone rubbers for medical devices are, for example, face masks, valves, tubes, catheters, Lining materials, bandages, prostheses,
- the medical devices produced in this way have a permanent suppression of the colonization of their surfaces by bacteria and thus a significantly reduced risk of infection in patients in their application.
- T unit trifunctional siloxane radical R 3 Si0 3/2
- Allyl succinic anhydride preferably at about 90-110 ° C.
- the synthesis is carried out under equimolar use based on the functional groups (Si-H and allyl). An excess or deficiency of the individual reactants is also possible.
- the product from step 1 is reacted with a Si-vinyl functional polymer by means of the equilibration reaction, whereby the vinyl-functional polymer can carry both chain and terminal vinyl groups.
- the molar ratio of the two educts can be selected between 1: 100 and 100: 1, wherein preferably a ratio of between 1:20 and 5: 1 and particularly preferably a ratio between 1:10 and 2: 1 is selected.
- the equilibration itself can be carried out by all methods known in the art, such as acid or base catalyzed Equilibration or using phosphazenes.
- Ingredients are removed by applying oil pump vacuum.
- Step 1 Preparation of ⁇ , ⁇ -functional silicone by hydrosilylation of trimethylsilyl acrylate
- Example 4 silicone base composition 1 (LSR-silicone): Commercially available LSR 3003/40 mixture ELASTOSIL ® A / B. The crosslinking of the material is carried out by pressing at 165 ° C for 10 min.
- Example 6 silicone base composition 2 (HTV-silicone): Commercially available peroxide crosslinking HTV mixture ELASTOSIL ® 401/60 C6. The crosslinking of the material is carried out by pressing at 165 ° C for 10 min, then the material is annealed at 200 ° C for 4 hours.
- Example 7 To the commercially available peroxide-crosslinking HTV mixture ELASTOSIL ® R 401/60 C6 compound (X) is compounded. The networking of the material is carried out by pressing at 165 ° C for 10 min, then the material is annealed at 200 ° C for 4 hours. In Table 1, various compounds (X) are varied at various amounts added and the results shown.
- Example 8 Silicone Base Composition 3 (RTV-2 Silicone): Commercially available addition-crosslinking RTV-2 blend SILPURAN. The crosslinking of the material is carried out by heating to 50 ° C for 1 h.
- Example 9 To the commercially available addition-crosslinking RTV 2 mixture SILPURAN ® 2420 A / B is added to compound (X). By incorporating the vinyl groups of compound (X), functional group balancing becomes necessary, therefore, HD cycles (mainly HD5 and HD6) are added, with additional addition of Si-H being approximately equal to the amount of vinyl group compound (X) (molar calculation) corresponds.
- the crosslinking of the material is carried out by heating to 50 ° C for 1 h.
- various compounds 1 are varied at various amounts added and the results shown.
- the specific effect is based on the difference in the number of microorganisms between a sample additivated with compound (X) and the blank sample, which consists of the same base material (without additive ie without compound (X)).
- the effectiveness of antimicrobial surfaces is defined by the achieved germ reduction within contact time and reported in log steps.
- a log level corresponds to the reduction of the germs by one power of ten (log10).
- the stated number of bacteria refers to the evaluation of the test by counting.
- Allyl succinic anhydride preferably at about 90-110 ° C.
- the synthesis is carried out under equimolar use based on the functional groups Si-H and allyl.
- the product from step 1 is reacted with a 1,1,3,3-tetramethyl-1,3-divinyldisiloxane by means of the equilibration reaction.
- the molar ratio between 1, 1, 3, 3 - tetramethyl - 1, 3 - divinyldisiloxane and the reaction product from stage 1 is at least 2, preferably at least 3. Die
- the temperature of the solution must not exceed 138 ° C.
- the products hexamethyldisxloxane and 1, 1, 2, 2, 2-pentamethyl-1-vinyldisiloxane are formed, which are removed from the mixture via the top of the column during the reaction to shift the equilibrium towards the divinyl functionalized species.
- Reaction product consists at the end of the reaction of preferably at least 90% of divinyl-functionalized monomers: 3- (3- (1,1,3,5,5-pentamethyl-1,5-divinyltrisiloxane-3-yl) propyl) dihydrofuran-2, 5 dion.
- Polydimethylsiloxane is chosen to statistically incorporate the desired number of D groups in compound (X).
- the product of Example 52 becomes in a ratio of 1: 4 with an a, w-vinyl functional
- the result of this reaction is an inventive a, ⁇ -vinyl-functional polydimethylsiloxane laterally modified with one or more propyldihydrofuran-2-5-dione groups.
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Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2013/076993 WO2015090374A1 (de) | 2013-12-17 | 2013-12-17 | Vernetzbare siliconzusammensetzung |
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| Publication Number | Publication Date |
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| EP3083856A1 true EP3083856A1 (de) | 2016-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| EP13814093.4A Withdrawn EP3083856A1 (de) | 2013-12-17 | 2013-12-17 | Vernetzbare siliconzusammensetzung |
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| Country | Link |
|---|---|
| US (1) | US20160319079A1 (de) |
| EP (1) | EP3083856A1 (de) |
| JP (1) | JP2017502133A (de) |
| KR (1) | KR20160085313A (de) |
| CN (1) | CN105940068A (de) |
| WO (1) | WO2015090374A1 (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106661331B (zh) * | 2014-03-06 | 2020-10-23 | 汉高股份有限及两合公司 | 单晶氧化铝填充的管芯粘结膏 |
| WO2018157941A1 (de) * | 2017-03-03 | 2018-09-07 | Wacker Chemie Ag | Gereckte siliconmembranen |
| US11319413B2 (en) * | 2017-10-31 | 2022-05-03 | Shin-Etsu Chemical Co., Ltd. | Organopolysiloxane composition, and organic silicon compound and production method therefor |
| US20210317335A1 (en) * | 2018-09-13 | 2021-10-14 | Momentive Performance Materials Gmbh | Functional polysiloxanes |
| WO2020139403A1 (en) * | 2018-12-29 | 2020-07-02 | Wacker Chemie Ag | Hydrophilic cyclodextrin-containing silicone gels |
| US12497490B2 (en) * | 2019-08-21 | 2025-12-16 | Shin-Etsu Chemical Co., Ltd. | Millable silicone rubber composition, silicone rubber cured product, and electrically-insulating member for power cable connection |
| US12084548B2 (en) * | 2020-05-18 | 2024-09-10 | Momentive Performance Materials Inc. | Carboxylic acid functional cross-linked silicone compositions |
| JP2023528251A (ja) * | 2020-05-18 | 2023-07-04 | モメンティブ パフォーマンス マテリアルズ インコーポレイテッド | エステル変性架橋シリコーン組成物 |
| CN111777941B (zh) * | 2020-06-12 | 2022-04-01 | 广东省石油与精细化工研究院 | 一种可固化的有机硅组合物及其制备方法和应用 |
| JP7811965B2 (ja) * | 2024-06-04 | 2026-02-06 | 株式会社トクヤマ | シリコーン組成物およびポリシロキサン化合物 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4343788A (en) | 1979-06-29 | 1982-08-10 | The Procter & Gamble Company | Antimicrobial polymer compositions |
| US4495340A (en) * | 1983-12-23 | 1985-01-22 | Dow Corning Corporation | Curable masses producing carboxyfunctional silicone coatings |
| DE3447457A1 (de) * | 1984-12-27 | 1986-07-03 | Wacker-Chemie GmbH, 8000 München | Vernetzbare organopolysiloxane, verfahren zu ihrer herstellung und verwendung dieser organopolysiloxane |
| DE19603628A1 (de) | 1996-02-01 | 1997-08-07 | Wacker Chemie Gmbh | Bei Raumtemperatur vulkanisierende, kondensationsvernetzende Siliconkautschuke |
| US5877243A (en) | 1997-05-05 | 1999-03-02 | Icet, Inc. | Encrustation and bacterial resistant coatings for medical applications |
| DE19816921A1 (de) * | 1998-04-16 | 1999-10-21 | Wacker Chemie Gmbh | Verfahren für kontinuierliche polymeranaloge Umsetzungen |
| JP3562578B2 (ja) * | 2000-10-04 | 2004-09-08 | 信越化学工業株式会社 | 硬化性組成物 |
| JP4013023B2 (ja) * | 2000-10-05 | 2007-11-28 | 信越化学工業株式会社 | 有機ケイ素化合物 |
| JP4269127B2 (ja) * | 2000-12-22 | 2009-05-27 | 信越化学工業株式会社 | 硬化性組成物 |
| GB0112525D0 (en) * | 2001-05-23 | 2001-07-11 | Dow Corning | Polysiloxanes and gels and pastes containing them |
| EP2024421A1 (de) * | 2006-06-02 | 2009-02-18 | Ciba Holding Inc. | Antimikrobielle säuren und salze |
| US20080279907A1 (en) | 2007-05-10 | 2008-11-13 | Ash Access Technology, Inc. | Antimicrobial medical devices and methods for making and using same |
| GB0715376D0 (en) | 2007-08-07 | 2007-09-19 | Smith & Nephew | Coating |
| FR2957604A1 (fr) * | 2010-03-22 | 2011-09-23 | Bluestar Silicones France | Composition silicone reticulable pour la realisation de revetements anti-adherents pour supports souples et additif promoteur d'accrochage contenu dans cette composition |
| CN106471043B (zh) * | 2014-07-03 | 2021-01-12 | 莫门蒂夫性能材料股份有限公司 | Uv-活性的发色团官能化的聚硅氧烷和由其制成的共聚物 |
-
2013
- 2013-12-17 CN CN201380081763.7A patent/CN105940068A/zh active Pending
- 2013-12-17 EP EP13814093.4A patent/EP3083856A1/de not_active Withdrawn
- 2013-12-17 WO PCT/EP2013/076993 patent/WO2015090374A1/de not_active Ceased
- 2013-12-17 JP JP2016540656A patent/JP2017502133A/ja active Pending
- 2013-12-17 KR KR1020167015366A patent/KR20160085313A/ko not_active Ceased
- 2013-12-17 US US15/104,652 patent/US20160319079A1/en not_active Abandoned
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| Title |
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| None * |
| See also references of WO2015090374A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017502133A (ja) | 2017-01-19 |
| WO2015090374A1 (de) | 2015-06-25 |
| US20160319079A1 (en) | 2016-11-03 |
| CN105940068A (zh) | 2016-09-14 |
| KR20160085313A (ko) | 2016-07-15 |
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