The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 1980
Filed:
Sep. 18, 1978
Masaaki Funaki, Toyonaka, JP;
Motoaki Yoshida, Kawanishi, JP;
Yoshinori Shimauchi, Kirenishi, JP;
Akira Fujioka, Osaka, JP;
Kazuo Sakiyama, Ibaraki, JP;
Simitomo Chemical Company, Limited, Osaka, JP;
Abstract
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).