摘要:
Colored organopolysiloxanes comprising units of the formula R1a(RO)bAcR2dSiO(4−a−b−c−d)/2 (I), in which R is hydrogen or a monovalent, unsubstituted or substituted hydrocarbon radical, wherein R is identical or different among the units of the formula (I); R1 is hydrogen or a monovalent, SiC-bonded, unsubstituted or substituted hydrocarbon radical, wherein R1 is identical or different among the units of the formula (I); R2 is a substituted monovalent hydrocarbon radical, wherein R2 is identical or different among the units of the formula (I); A is a hydrophilic organic dye radical or its complex compound with a metal, which contains at least one triazine ring via which it is bonded to the unit of the formula (I), wherein A is identical or different among the units of the formula (I); a is 0, 1, 2 or 3; h is 0, 1, 2 or 3; d is 0,1, 2 or 3; and c is 0, 1 or 2; wherein a+b+c+d≦3; wherein d is 0 in the units of the formula (I) where c is not 0; and wherein the organopolysiloxane has at least one radical A per molecule.
摘要翻译:包含式R1a(RO)bAcR2dSiO(4-abcd)/ 2(I)的单元的着色有机聚硅氧烷,其中R是氢或一价未取代或取代的烃基,其中R在相同或不同的式 (一世); R1是氢或一价,SiC键合的未取代或取代的烃基,其中R1在式(I)的单元中相同或不同; R2是取代的单价烃基,其中R2在式(I)的单元中相同或不同; A是亲水性有机染料基团或其与金属的络合物,其含有至少一个三嗪环,通过其与式(I)的单元键合,其中A在式(I)的单元之间相同或不同, 一世); a是0,1,2或3; h为0,1,2或3; d是0,1,2或3; 且c为0,1或2; 其中a + b + c + d <= 3; 其中d为式(I)单元中的0,其中c不为0; 并且其中所述有机聚硅氧烷每分子具有至少一个基团A.
摘要:
A process for the preparation of organosilicon compounds bearing silanol groups, in particular linear polyorganosiloxanes bearing lateral silanol groups, in a predictable manner and high yield, comprising reacting a similarly constructed Si—H functional organosilicon compound with water in the presence of a Group VIII metal catalyst, optionally in the presence of a cocatalyst. Predictable product structure and very few byproducts are particularly advantageous.
摘要:
A process for preparing silicone-containing polymers comprises free-radical polymerization of one or more ethylenically unsaturated organic monomers in the presence of copper-free free-radical initiator and one or more polymerization regulators, wherein a polymerization regulator is a silicone which contains at least one aldehyde group.
摘要:
Nitrogen-containing organopolysiloxanes which may also contain crosslinkable reactive groups are easily prepared by reaction of an alkoxy-functional oligosilane containing methylene linkages between silyl groups and nitrogen with organopolysiloxanes condensable therewith. The nitrogen may be quaternized if desired. The chain amino nitrogens can subsequently be quaternized if desired. Uses for the products include single component crosslinkable compositions.
摘要:
Hydrophilic siloxane copolymers are prepared by (a) reacting organopolysiloxanes having at least one Si-bonded hydrogen atom with substantially linear oligomeric or polymeric compounds of formula R1-(A-CnH2n)m-A1-H (I) where R1 is a monovalent optionally substituted, hydrosilylatable hydrocarbyl radical, A is a bivalent polar organic radical selected from —O—, —C(O)—O—, —O—C(O)—, —O—C(O)—O—, —C(O)—NH—, —NH—C(O)—, urethane radicals and urea radicals, A1 is a bivalent polar organic radical selected from —O—, —NH— and —NR′—, n is an integer from 1 to 20, and m is zero or a positive integer, (b) reacting the resulting intermediate with organic compounds which have two or more isocyanate groups, in the presence of further organic compounds (6) reactive toward isocyanate groups and containing at least one tertiary amine group, and (c) quaternizing the amino-group-containing intermediate from step (b) with an alkylating agent (8), with the proviso that the water content of the compounds (1) and (2) is lower than 2000 weight ppm.
摘要:
The present invention relates to a process for adding Si-bonded hydrogen to aliphatically unsaturated compounds containing carbon-carbon multiple bonds and ether oxygen atoms in the presence of carbinol groups, wherein the reaction mixture comprises, as a further component, at least one cyclic ether.
摘要:
Photovoltaic modules are prepared by laminating an active device to a glass cover plate by means of a thermoplastic siloxane copolymer. The siloxane copolymer provides good adhesion, freedom from water absorption, and yet can be reworked either in the field or during recycling of the solar cell components.
摘要:
Organosilicon compounds bearing carboxylic acid groups are easily and economically replaced in high yield by oxidation of a carbinol-functional organosilicon compound with an oxidizer in the presence of a moderator at a pH≧3. Carboxyl-functional organopolysiloxanes highly useful as textile softeners may be obtained by this method.
摘要:
Cyclodextrinyl group-containing organosilicon compounds contain cyclodextrin or cyclodextrin derivatives bonded to an organosilicon moiety through a divalent linking group. The compounds are easily prepared in high yield by reaction of reactive cyclodextrin or cyclodextrin derivatives with an organosilicon compound reactive therewith. The compounds have numerous uses, including treatment of organic fibers to provide long lasting fragrances or freshness characteristics.
摘要:
Self-adhesive crosslinkable silicone compositions may be transparent and prepared without conventional adhesion promoters, and contain (1) an organopolysiloxane having a minimum of two aliphatically unsaturated carbon-carbon bond-containing groups, (2) a pendant Si—H functional organopolysiloxane having at least 3 Si—H groups and a minimum of 0.7 weight percent of Si-bonded hydrogen, and (3) a linear organopolysiloxane bearing terminal Si—H groups, wherein the mol ratio of silicon-bonded hydrogen in (2) to that in [(2) and (3)] is from 0.05 to 1.