Abstract:
There is provided herein a composition comprising: (A) a silanol and/orhydrocarbon-terminated polyorganosiloxane in an amount of from about 30 weight percent to about 90 weight percent; and, (B) a moisture curable silylated polyurethane resin in an amount of from about 10 weight percent to about 70 weight percent. There is also provided herein in another embodiment a two part sealant composition wherein the first part comprises: (A) a silanol and/or hydrocarbon-terminated polyorganosiloxane in an amount of from about 15 weight percent to about 60 weight percent, (B) a moisture curable silylated polyurethane resin in an amount of from about 2 weight percent to about 32 weight percent, and (C) a filler, said weight percents being based on the weight of the first part. In addition, there is provided herein a fumed silica composition comprising: (A) a silanol and/or hydrocarbon-terminated polyorganosiloxane in an amount of from about 20 weight percent to about 62 weight percent; (B) a moisture curable silylated polyurethane resin in an amount of from about 8 weight percent to about 38 weight percent; and, (C) a treated fumed silica in an amount of from about 5 to about 10 weight percent.
Abstract:
The invention is directed to a process for the preparation of thiocarboxylate silane comprising reacting an aqueous solution of a salt of a thiocarboxylic acid with a haloalkylalkoxysilane in the presence of a solid supported catalyst. The invention is also directed to a process for the preparation of an aqueous solution of a salt of a thiocarboxylic acid which comprises reacting an aqueous solution of a sulfide and/or hydrosulfide with a carboxylic acid halide and/or acid anhydride.
Abstract:
The present invention relates to a process for providing a low-chloride hydrolyzate comprising contacting an acid or base hydrolyzed substrate of a chlorosilane direct process residue with nitric acid to provide a hydrolyzate with a chloride content of less than about 1.8% by weight. The process of present invention is especially useful in cement kilns and smelter operation.
Abstract:
Disclosed herein is a primer composition comprising an inorganic UV absorbing agent and a polymer selected from (i) a copolycarbonate, and (ii) a polyurethane obtained by reaction of a polyisocyanate and a copolycarbonate diol. Also disclosed is a coated article comprising a polymeric substrate, a primer layer disposed on at least one surface of said substrate, and an abrasion-resistant layer disposed on said primer layer, where the primer layer is made from the primer composition of the invention.
Abstract:
A composition includes a non-crosslinked reaction product of an oxirane or oxetane compound (I) comprising at least two oxirane or oxetane groups; a compound (II) comprising silicon and one or more amino groups; and optionally a polyamine (III); and a secondary amine (IV).
Abstract:
A moisture-curable resin composition comprising (a) a moisture-curable polymer having at least one hydrolysable silyl group; (b) a reactive modifier; (c) a catalyst for catalyzing the reaction between the moisture-curable polymer (a) and reactive modifier (b) under curing conditions; and optionally, the composition can contain one or more conventional components, including pigments, fillers, curing catalysts, dyes, plasticizers, thickeners, coupling agents, extenders, volatile organic solvents, wetting a agents, tackifiers, crosslinking agents, thermoplastic polymers, ultraviolet stabilizers, and combination thereof. The moisture-curable resin composition is useful in the production of adhesives including hot melt adhesives, primers, sealants and coatings.
Abstract:
The present invention is directed to a network composition the reaction product of: (i) at least one anionic polymerizable ethylenically unsaturated monomer (I) selected from the group consisting of [CH2═C(R3)C(O)OXa(C2H4O)b(C3H6O)c(C4H8O)d]pP(O)(OY)q(OZ)r where R3═H or alkyl of 1 to about 6 carbon atoms; X=alkyl, aryl, or alkaryl diradical connecting group of 0 to about 9 carbon atoms; a is 0 to about 100; b is 0 to about 100; c is 0 to about 100; d is 0 to about 100; q is 0 to about 2; r is 0 to about 2; p is 1 to about 3 subject to the limitation that p+q+r=3; and Y and Z is H, or metal ion; and CH2═C(R3)C(O)OXa′(C2H4O)b′(C3H6O)c′(C4H8O)d′—SO3—Y) where R3═H or alkyl of from 1 to about 6 carbon atoms; X=alkyl, aryl, or alkaryl diradical connecting group of 0 to about 9 carbon atoms; a′ is 0 to about 100; b′ is 0 to about 100; c′ is 0 to about 100; d′ is 0 to about 100; Y is H, or metal ion; and (ii) one or more additional monomers (II) selected from the group consisting of acrylic acid/acrylate, methacrylic acid/methacrylate, acrylamides, vinyl acetate and styrene, which are copolymerizable with (I); and (iii) a cross-linking agent (III), capable of copolymerizing with (I) and (II).
Abstract translation:本发明涉及一种网络组合物,其反应产物为:(i)至少一种选自[CH 2 = C(R 3)C(O)O X a(C 2 H 4 O)b的阴离子可聚合烯属不饱和单体(I) (C 3 H 6 O)c(C 4 H 8 O)d] pP(O)(OY)q(OZ)r其中R 3 = H或1至约6个碳原子的烷基; X = 0至约9个碳原子的烷基,芳基或烷芳基双基连接基团; a为0〜100; b为0至约100; c为0至约100; d为0至约100; q为0〜2; r为0〜2; p为1至约3,但受限于p + q + r = 3; Y和Z是H或金属离子; (C 3 H 6 O)c'(C 4 H 8 O)d-SO 3-Y)其中R 3 = H或1至约6个碳原子的烷基; X = 0至约9个碳原子的烷基,芳基或烷芳基双基连接基团; a'为0至约100; b'为0至约100; c'为0至约100; d'为0至约100; Y是H或金属离子; 和(ii)可与(I)共聚的一种或多种选自丙烯酸/丙烯酸酯,甲基丙烯酸/甲基丙烯酸酯,丙烯酰胺,乙酸乙烯酯和苯乙烯的另外的单体(II); 和(iii)能够与(I)和(II)共聚的交联剂(III)。
Abstract:
The present invention relates to stable, zero or low VOC epoxy-containing polysiloxane oligomer compositions that provide for a high degree of chemical resistance to compositions containing organic resins, while at the same time, maintaining or improving the flexibility of these organic resin-containing compositions, to processes for preparing epoxy-containing polysiloxane oligomer compositions, and to uses in coatings, sealants, adhesives, and composites containing the same.
Abstract:
Disclosed herein is a process for the hydrosilylation of a composition containing a silyl hydride and a compound containing at least one unsaturated group, the process comprising contacting a non-previous metal based complex as a catalyst precursor with an activator being a reducing agent shortly before, simultaneously or after contacting the complex with the composition, to cause the silyl hydride to react with the compound containing at least one unsaturated group to produce a hydrosilylation product.