Sumitomo Chemical Company, Limited

Nippon Sheet Glass Company, Limited

Sakata Shokai Ltd.

Kazuo Sakiyama

Motoaki Yoshida

Akira Fujioka

Masaaki Funaki

Noboru Ohtani

Akio Takigawa

Yoshinori Shimauchi

Hiroshi Ota

Masaru Oshiumi

Mitsuo Kuwata

Hirosi Kato

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

An ultraviolet radiation curable resin prepared by reaction of (A) an alkoxymethylated melamine, (B) an .alpha.,.beta.-ethylenically unsaturated compound having at least one hydroxyl group and (C) a polyol having at least two hydroxyl groups and/or a higher fatty acid ester having a least one hydroxyl group.

Ultraviolet radiation curable coating composition

A coated shaped article of a polycarbonate type resin of improved abrasion resistance, which comprises: (I) a shaped substrate of a polycarbonate type resin, (II) an undercoat layer applied to and cured on said substrate, an (III) an overcoat layer applied to and cured on the undercoat layer, which overcoat is formed of a composition containing: (A) at least one hydrolyzate selected from the group of epoxy group-containing silicon compounds, (B) at least one member selected from the group consisting of hydrolyzates of organic silicon compounds colloidal silica and organic titanium compounds, and (C) a curing catalyst.

Coated shaped article of polycarbonate type resin

A coating composition, which comprises: (A) at least one hydrolyzate selected from the group of epoxy group-containing silicon compounds, (B) at least one member selected from the group consisting of hydrolyzates of organic silicon compounds, colloidal silica and organic titanium compounds, and (C) a curing catalyst.

Coating composition

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

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).

An ultraviolet radiation polymerizable unsaturated compound containing a polymerizable unsaturated group which is obtained by reacting a reaction product (I) prepared by the reaction between a higher fatty acid having 8 or more carbon atoms or an unsaturated monobasic acid, or a mixture of the two, and a polyisocyanate compound containing at least two isocyanate groups in the molecule, with a reaction product (II) prepared by the reaction between an unsaturated monobasic acid or a higher fatty acid having 8 or more carbon atoms, or a mixture of the two, and an epoxy compound containing at least two epoxy groups in the molecule.

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Ibaraki, Japan

Kazuo Sakiyama