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:
Apr. 05, 1977
Filed:
Jul. 03, 1975
Uraji Narushima, Yokohama, JA;
Takashi Moriwake, Kawasaki, JA;
Nippon Paint Co., Ltd., Osaka, JA;
Abstract
A surface treating agent for processing of metals, comprising (A) a water-soluble thermoplastic synthetic resin having a glass transition temperature of 60 to 90.degree. C and an average molecular weight of 15,000 to 50,000 which is obtained by copolymerizing (1) 16 to 40 parts by weight of an ester of acrylic acid with a monovalent aliphatic alcohol having 1 to 8 carbon atoms, (2) 40 to 64 parts by weight of a mixture of styrene and at least one of methyl methacrylate, vinyl acetate and acrylonitrile and (3) 10 to 20 parts by weight of a polymerizable monomer having a carboxyl group as the polar group, (B) a metallic soap and (C) water, said surface treating agent being able to be applied to a metal surface without heating to afford an unsticky coating film having excellent lubricating properties and excellent blocking resistance without accumulation on a press die in deep draw processing of the metal plate.