摘要:
Solid copolymers are produced by copolymerizing a mixture of: (A) at least 30% by weight of a monomer having the formula: ##STR1## wherein R.sub.1 is H or CH.sub.3 and R.sub.2 is an alkyl radical containing from 1 to 14 carbon atoms; (B) from 3 to 20% by weight of an ethylenic .alpha., .beta. unsaturated carboxylic acid or anhydride thereof, or from 3 to 40% by weight of glycidyl acrylate or glycidyl methacrylate; and (C) from 0 to 67% by weight of a monomer copolymerizable with said monomers (A) and (B). Preferably, the mixture is first bulk-polymerized until conversion to the copolymer is from 10 to 80% by weight and the polymerization is completed by suspension-polymerization. Thermosetting solid coating compositions are produced by mixing a major proportion of a solid copolymer so produced with a minor proportion of a cross-linking compound or with an epoxy resin containing at least 2 epoxy radicals in the molecule in presence of a tertiary amine curing accelerator.
摘要:
Solid copolymers are produced by copolymerizing a mixture of: (A) at least 30% by weight of a monomer having the formula: ##EQU1## wherein R.sub.1 is H or CH.sub.3 and R.sub.2 is an alkyl radical containing from 1 to 14 carbon atoms; (B) from 3 to 20% by weight of an ethylenic .alpha., .beta. unsaturated carboxylic acid or anhydride thereof, or from 3 to 40% by weight of glycidyl acrylate or glycidyl methacrylate; and (C) from 0 to 67% by weight of a monomer copolymerizable with said monomers (A) and (B). Preferably, the mixture is first bulk-polymerized until conversion to the copolymer is from 10% to 80% by weight and the polymerization is completed by suspension-polymerization. Thermosetting solid coating compositions are produced by mixing and melting 60 to 95 parts by weight of the solid copolymer and 40 to 5 parts by weight of a cross-linking compound or of an epoxy resin containing at least 2 epoxy radicals in the molecule in presence of a tertiary amine curing accelerator.
摘要:
Solid copolymers are produced by copolymerizing a mixture of: (A) at least 30% by weight of a monomer having the formula: ##STR1## wherein R.sub.1 is H or CH.sub.3 and R.sub.2 is an alkyl radical containing from 1 to 14 carbon atoms; (B) from 3 to 20% by weight of an ethylenic .alpha.,.beta. unsaturated carboxylic acid or anhydride thereof, or from 3 to 40% by weight of glycidyl acrylate or glycidyl methacrylate; and (C) from 0 to 67% by weight of a monomer copolymerizable with said monomers (A) and (B). Preferably, the mixture is first bulk-polymerized until conversion to the copolymer is from 10 to 80% by weight and the polymerization is completed by suspension-polymerization. Thermosetting solid coating compositions are produced by mixing a major proportion of a solid copolymer so produced with a minor proportion of a cross-linking compound or with an epoxy resin containing at least 2 epoxy radicals in the molecule in presence of a tertiary amine curing accelerator.
摘要:
An electrophotographic toner comprising a constituent resin and a colorant, in which the constituent resin has a softening point ranging from room temperature to 170.degree. C. and comprises (a) a copolymer of cinnamic acid and one or more vinyl monomers, (b) a mixture of a copolymer as defined in (a) and a polymer having good compatibility therewith, (c) a mixture of a copolymer as defined in (a) and cinnamic acid, (d) a mixture of a polymer as defined in (b) and cinnamic acid, or (e) a mixture of a mixture as defined in (b) and cinnamic acid, the cinnamic acid content of the constituent resin being from 1 to 25 parts by weight per 100 parts by weight of the constituent resin in the case of cinnamic acid copolymerized with one or more vinyl monomers and from 0.1 to 25 parts by weight per 100 parts by weight of the constituent resin in the case of cinnamic acid present in the uncombined state.
摘要:
A metallic tone powder coating composition of acrylic resin series which prises a polymer-capsulated metal powder composite material wherein a vinyl monomer is chemically combined with a powder of a metal such as aluminum and a copolymer having a glass transition temperature of at least 20.degree. C wherein the sum of an acrylic ester and a methacrylic ester is at least 30% by weight of the total monomer constituting the copolymer. This powder coating composition provides a coating film having excellent weather-resistance and beautiful appearance and is suited for use in electrostatic powder spraying.
摘要:
A process for forming a coating with a metallic finish, which comprises(1) a first step of coating an article with [A] a water-thinnable paint comprising (a) a cross-linkable (meth)acrylate ester copolymer or a mixture of the (meth)acrylate ester copolymers containing at least 0.1 equivalent, per 1,000 g of resin solids, of a carboxyl or carboxyl ion group and a group capable of undergoing a ring-opening reaction with the carboxyl or carboxy ion group upon heating, both of said groups being contained in the same or different copolymers, and having a number average molecular weight of at least 3,000 and (b) metallic scales, and baking the coating paint to form a coating containing the metallic scales and(2) a second step of coating [B] a powder paint comprising a (meth)acrylate ester copolymer having a glycidyl or .beta.-methylglycidyl group and a polycarboxylic acid on the scale-containing coating obtained in the first step, and baking the coated paint to form a protective coating for the scale-containing coating.
摘要:
A process for forming a coating having a metallic finish, which comprises (I) coating an undercoat paint (A) by electrodeposition on an article to be coated, (II) coating a water-thinnable intermediate coat paint (B) containing metallic scales on the coated surface of the undercoat before the undercoat is baked, (III) baking the undercoat and the intermediate coat, (IV) coating a powdery top coat paint (C) on the baked surface of the intermediate coat, and then (V) baking the top coat, said intermediate coat paint (B) containing a solid resin component at least 60% by weight of the entire resin solids which consists of a (meth)acrylate ester copolymer containing at least 0.1 equivalent, per 1,000 g of the solids content of the copolymer, of carboxyl or carboxyl ion groups and having a number average molecular weight of at least 3,000, and said top coat paint (C) containing a (meth)acrylate ester copolymer containing a glycidyl or .beta.-methlglycidyl group and a polycarboxylic acid.
摘要:
A room temperature-curable resin composition consisting essentially of (A) a vinyl polymer containing a basic nitrogen atom and (B) a compound containing both an epoxy group and a hydrolyzable silyl group in each molecule. The composition is especially useful as a paint, an adhesive, or a sealing agent.
摘要:
Provided is a stock oil composition for a carbonaceous material for a negative electrode of a lithium-ion secondary battery which composition is useful for achieving excellent high-speed charge and discharge characteristics. The stock oil composition for a carbonaceous material for a negative electrode of a lithium-ion secondary battery uses a bottom oil of residue fluid catalytic cracking apparatus as a raw material. The stock oil composition comprises, of a saturated component, an aromatic component, a resin component and an asphaltene component detectable by development of the stock oil composition using thin-layer chromatography, the saturated component ranging from 30 to 50% by weight and the aromatic component ranging from 50 to 70% by weight; and has an average molecular weight of from 400 to 600.