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:
Jul. 28, 1987
Filed:
Apr. 08, 1986
Keiji Urata, Iwakuni, JP;
Yoshio Kurome, Iwakuni, JP;
Sanyo-Kokusaku Pulp Co., Ltd., Tokyo, JP;
Abstract
(1) A hardenable coating composition for polypropylene resins, having a chlorinated polyolefin as a principal constitutional element provided partially a crosslinking reaction beforehand between carboxyl group or acid anhydride group of a chlorinated polyolefin (I) obtained by chlorinating, to a degree within a range from 10 wt % to 50 wt %, a polyolefin which is modified with one or two or more types of compounds selected from a group consisting of unsaturated polycarboxylic acids or their acid anhydrides and has a saponification value ranging from 6 to 60, and epoxy group of a compound or a resin (II) which has at least two epoxy groups per molecule. (2) A hardenable coating composition for polypropylene resins described in claim 1, wherein the weight ratio of chlorinated polyolefin (I) to the compound or the resin (II) which has epoxy groups is 100:0.5-50. (3) A hardenable coating composition for polypropylene resins described in claim 1 to claim 2, wherein tertiary amines are added to promote the crosslinking reaction between carboxyl group or acid anhydride group and epoxy group.