Patent classifications
C08F283/124
UV/VISIBLE-ABSORBING VINYLIC MONOMERS AND USES THEREOF
Described herein are UV-absorbing vinylic monomers and their uses in preparing UV-absorbing contact lenses capable of blocking ultra-violet (“UV”) radiation and violet radiation with wavelengths from 380 nm to 440 nm, thereby protecting eyes to some extent from damages caused by UV radiation and potentially from violet radiation.
UV-curable silicone composition, cured products thereof, and methods of using the same
Various embodiments disclosed related to UV-curable silicone composition, cured products thereof, and methods of using the same. Various embodiments provide a shear-thinning UV-curable silicone composition. The composition can include (A) a mercapto-functional polyorganosiloxane having the unit formula [(CH.sub.3).sub.3SiO.sub.1/2].sub.x[(CH.sub.3).sub.2SiO].sub.y[R(CH.sub.3)SiO].sub.z wherein x is about 0.01 to about 0.1, y is about 0 to about 0.94, z is about 0.05 to about 0.99, and at each occurrence R is independently a mercapto(C.sub.1-30)hydrocarbyl group. The composition can include (B) at least one of (B1) a polyorganosiloxane comprising at least two aliphatic unsaturated carbon-carbon bonds, and (B2) an organic molecule comprising at least two aliphatic unsaturated carbon-carbon bonds; the composition can include (C) a filler. The composition can also include (D) a photoinitiator.
Interior aircraft components and methods of manufacture
A aircraft component comprises a polycarbonate composition comprising: a first polycarbonate selected from a polycarbonate homopolymer, a poly(aliphatic ester-carbonate), or a combination thereof; a second polymer different from the first polycarbonate, the second polymer comprising a poly(carbonate-siloxane) copolymer, a polydialkylsiloxane, a silicone graft copolymer, or a combination thereof, wherein siloxane units in the second polymer are present in the polycarbonate composition in an amount of 0.3 to 3 wt. %, based on the total weight of the polycarbonate composition; and 10 to 50 wt. % of glass fiber, based on the total weight of the polycarbonate composition.
Graft copolymer containing polyorganosiloxane, resin composition, molded article, slidability-improving agent, and sliding member
The invention provides a thermoplastic resin composition, which does not substantially compromise color rendering and flame retardance of a thermoplastic resin and has high impact resistance, slidability, and chemical resistance in a wide scope of environmental conditions ranging from low temperature to high temperature. A graft copolymer (G.sub.F2) containing rubber is a graft copolymer containing rubber formed by performing graft polymerization of 1 or more vinyl monomers on a composite rubber containing a polyorganosiloxane (B1) and a polyalkyl (meth)acrylate (B2). The content of a component derived from a silane compound containing a vinyl-based polymerizable group in the polyorganosiloxane (B1) is 1 mass % to 10 mass %. The volume-average particle size of the graft copolymer containing rubber is 300 nm to 2000 nm. The content of the polyorganosiloxane (B1) in the graft copolymer containing rubber is 70 mass % to 98 mass %. An acetone soluble matter is 5.0 mass % or more and 30.0 mass % or less.
Graft copolymer containing polyorganosiloxane, resin composition, molded article, slidability-improving agent, and sliding member
The invention provides a thermoplastic resin composition, which does not substantially compromise color rendering and flame retardance of a thermoplastic resin and has high impact resistance, slidability, and chemical resistance in a wide scope of environmental conditions ranging from low temperature to high temperature. A graft copolymer (G.sub.F2) containing rubber is a graft copolymer containing rubber formed by performing graft polymerization of 1 or more vinyl monomers on a composite rubber containing a polyorganosiloxane (B1) and a polyalkyl (meth)acrylate (B2). The content of a component derived from a silane compound containing a vinyl-based polymerizable group in the polyorganosiloxane (B1) is 1 mass % to 10 mass %. The volume-average particle size of the graft copolymer containing rubber is 300 nm to 2000 nm. The content of the polyorganosiloxane (B1) in the graft copolymer containing rubber is 70 mass % to 98 mass %. An acetone soluble matter is 5.0 mass % or more and 30.0 mass % or less.
COATING COMPOSITION, A COMPOSITION FOR COATING FURNITURE OR BUILDING INTERIOR, AND AN ARTICLE COMPRISING THE COATING COMPOSITION
The purpose of the present invention is to provide a coating composition which gives a substrate excellent feel, abrasion resistance, stain resistance, flame retardancy, and weather resistance; and an article, furniture and a building interior material having a coating formed from the aforesaid coating composition. The present invention provides a coating composition comprising the following components (A) to (D): (A) an emulsion of a silicone acrylic copolymer resin which is a copolymer of 60 to 99 parts by mass of (a1) a polyorganosiloxane represented by the formula (1) and 1 to 40 parts by mass of (a2) an acrylic acid ester monomer and/or a methacrylic acid ester monomer, provided that a total amount of components (a1) and (a2) is 100 parts by mass, the emulsion being in an amount of 0.5 to 20 parts by mass as a solid content, (B) at least one resin emulsion in an amount of 20 to 80 parts by mass as a solid content, selected from the group consisting of acrylic resin emulsions other than component (A), urethane resin emulsions and alkyd resin emulsions, (C) pigment in an amount of 1 to 50 parts by mass, and (D) a flame retardant in an amount of 1 to 10 parts by mass, provided that a total mass of the solid contents of components (A) and (B) and the amounts of components (C) and (D) is 100 parts by mass.
COATING COMPOSITION, A COMPOSITION FOR COATING FURNITURE OR BUILDING INTERIOR, AND AN ARTICLE COMPRISING THE COATING COMPOSITION
The purpose of the present invention is to provide a coating composition which gives a substrate excellent feel, abrasion resistance, stain resistance, flame retardancy, and weather resistance; and an article, furniture and a building interior material having a coating formed from the aforesaid coating composition. The present invention provides a coating composition comprising the following components (A) to (D): (A) an emulsion of a silicone acrylic copolymer resin which is a copolymer of 60 to 99 parts by mass of (a1) a polyorganosiloxane represented by the formula (1) and 1 to 40 parts by mass of (a2) an acrylic acid ester monomer and/or a methacrylic acid ester monomer, provided that a total amount of components (a1) and (a2) is 100 parts by mass, the emulsion being in an amount of 0.5 to 20 parts by mass as a solid content, (B) at least one resin emulsion in an amount of 20 to 80 parts by mass as a solid content, selected from the group consisting of acrylic resin emulsions other than component (A), urethane resin emulsions and alkyd resin emulsions, (C) pigment in an amount of 1 to 50 parts by mass, and (D) a flame retardant in an amount of 1 to 10 parts by mass, provided that a total mass of the solid contents of components (A) and (B) and the amounts of components (C) and (D) is 100 parts by mass.
RADIATION-CURABLE ORGANOPOLYSILOXANE COMPOSITION AND A RELEASE SHEET
A radiation-curable organopolysiloxane composition comprising the components (A), (B) and (C): (A) organopolysiloxane represented by the formula (1), wherein at least one of R.sup.1 is a (meth)acryloyl group-containing organic group, a is an integer of 2 or more, a, b, c and d satisfy an equation, 2≤a+b+c+d≤1,000, and a ratio of the total number of the hydroxyl group and the hydroxyl group-containing organic group to the total number of the (meth)acryloyl group-containing organic group, the hydroxyl group and the hydroxyl group-containing organic group is 0.4 or less; (B) compound having two or more acrylic groups in one molecule in an amount of 0.1 to 50 parts by mass, relative to 100 parts by mass of component (A); and (C) radical polymerization initiator in an amount of 0.1 to 15 parts by mass, relative to 100 parts by mass of component (A).
RADIATION-CURABLE ORGANOPOLYSILOXANE COMPOSITION AND A RELEASE SHEET
A radiation-curable organopolysiloxane composition comprising the components (A), (B) and (C): (A) organopolysiloxane represented by the formula (1), wherein at least one of R.sup.1 is a (meth)acryloyl group-containing organic group, a is an integer of 2 or more, a, b, c and d satisfy an equation, 2≤a+b+c+d≤1,000, and a ratio of the total number of the hydroxyl group and the hydroxyl group-containing organic group to the total number of the (meth)acryloyl group-containing organic group, the hydroxyl group and the hydroxyl group-containing organic group is 0.4 or less; (B) compound having two or more acrylic groups in one molecule in an amount of 0.1 to 50 parts by mass, relative to 100 parts by mass of component (A); and (C) radical polymerization initiator in an amount of 0.1 to 15 parts by mass, relative to 100 parts by mass of component (A).
Coating composition and laminate
A coating composition contains: (A) 60 to 99% by weight of a urethane-based resin emulsion having film-forming ability in terms of a solid content ratio; and (B) 1 to 40% by weight of a silicone-acrylic graft copolymer resin emulsion having an average particle size of 180 nm or less in terms of a solid content ratio, wherein a weight ratio of a polyorganosiloxane represented by a specific chemical formula to an acrylic acid ester unit or a methacrylic acid ester unit is 30:70 to 99:1.