Sumitomo Chemical Company, Limited

Nippon Sheet Glass Company, Limited

Masaaki Funaki

Motoaki Yoshida

Kazuo Sakiyama

Akira Fujioka

Noboru Ohtani

Yoshinori Shimauchi

Ryozo Kuriyama

Yutaka Ichinomiya

Koki Kunihiro

Haruo Inatomi

Taizo Oshima

A vehicle window glass composed of a transparent part and a colored part formed on the periphery of the transparent part by the multi-color molding method. A method for producing a vehicle window glass by forming a colored part on the periphery of the transparent part by the multi-color molding method, characterized in that at least one cycle of injection molding for the multi-color molding is accomplished by injection-compression molding. A vehicle window glass composed of a transparent part and a peripheral colored part, characterized in that transparent part gradually thins out toward the periphery at the boundary between the transparent part and the colored part.

Vehicle window glass

A non-fogging coating composition, which comprises (A) 0 to 50 parts by weight of epoxy group-containing organic silane compounds or partial hydrolyzates thereof, (B) 20 to 80 parts by weight of a polyhydric alcohol having an ethylene oxide chain, (C) 10 to 75 parts by weight of a polymer or copolymer having at least 20% by weight of repeating structural units having the general formula ##STR1## wherein, R.sup.4 and R.sup.5 independently stand for H or a lower alkyl group or carbonyl group and X stands for a side chain possessing an epoxy group, and (D) a catalytic amount of a curing catalyst. And a shaped article of polycarbonate type resin coated therewith.

Non-fogging coating composition and a shaped article coated therewith

Coated formed materials of plastics or glass having improved anti-scratching and anti-fogging properties, are produced by applying to the surface of the formed material an undercoating material comprising (a) a mixture of methylolmelamine in which all or a part of the methylol groups are alkyletherified, and a polyhydric alcohol having a molecular weight of 1,500 or less which may contain an ethylene oxide or propylene oxide chain, or a pre-condensate thereof, (b) a mixture of a monomer having a unit of the formula (I), ##STR1## wherein R.sub.1 and R.sub.2 are independently a hydrogen atom or a lower alkyl, carboxyl or amino group and X is a hydroxyl group-containing side chain, or a homopolymer or copolymer thereof, and a crosslinking agent, or (c) a mixture of (a) and (b), followed by curing it so that the percentage of residual hydroxyl groups therein is from 60 to 90%, thereby forming a resin film (1), and then topcoating the resin film (1) with a topcoating material comprising a mixture of (d) a mixture of methylolmelamine in which all or a part of the methylol groups are alkyletherified, and a polyhydric alcohol having a molecular weight of 100 to 2,000 and an ethylene oxide chain, or a pre-condensate thereof and (e) a surface active agent, followed by curing it so that the percentage of residual hydroxyl groups therein is 35 to 70%, thereby forming a melamine resin film (2).

Coated materials and production thereof

A method for the manufacture of a colored nonfogging article, which comprises bringing a nonfogging substrate containing a surfactant into contact with a dyeing solution containing a surfactant, a solvent and a coloring material, said surfactant being contained in the dyeing solution in an amount within the range of 20 to 100% by weight based on the total amount of the surfactant and the solvent.

Method for the manufacture of a colored nonfogging article

Coated formed materials of plastics or glass having improved anti-scratching and anti-fogging properties, are produced by applying to the surface of the formed material an undercoating material comprising (a) a mixture of methylolmelamine in which all or a part of the methylol groups are alkyletherified, and a polyhydric alcohol having a molecular weight of 1,500 or less which may contain an ethylene oxide or propylene oxide chain, or a pre-condensate thereof, (b) a mixture of a monomer having a unit of the formula (I), ##STR1## wherein R.sub.1 and R.sub.2 are independently a hydrogen atom or a lower alkyl, carboxyl or amino group and X is a hydroxyl group-containing side chain, or a homopolymer or copolymer thereof, and a crosslinking agent, or (c) a mixture of (a) and (b), followed by curing it so that the percentage of residual hydroxyl groups therein is from 60 to 90%, thereby forming a resin film (1), and then topcoating the resin film (1) with a topcoating material comprising a mixture of (d) a mixture of methylolmelamine in which all or a part of the methylol groups are alkyletherified, and a polyhydric alcohol having a molecular weight of 100 to 2,000 and an ethylene oxide chain, or a pre-condensate thereof and (e) a surface active agent, followed by curing it so that the percentage of residual hydroxyl groups therein is from 35 to 70%, thereby forming a melamine resin film (2).

Growing community of inventors

Toyonaka, Japan

Masaaki Funaki