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:
Jan. 04, 1983
Filed:
Mar. 24, 1981
Mitsubishi Rayon Company, Ltd., Tokyo, JP;
Abstract
A coating composition for the preparation of synthetic resin shaped articles excellent in abrasion resistance and weatherability is described. This composition comprises (a) a polyfunctional monomer mixture comprising (i) 25-75 wt. % of at least one polyfunctional monomer of the formula (I): ##STR1## wherein at least three of X.sub.11, X.sub.12, X.sub.13, X.sub.22, X.sub.23 -X.sub.n2, X.sub.n3 and X.sub.14 are CH.sub.2 .dbd.CH.C00-- and the remaining groups are --OH, and n is an integer of 1-5, (ii) 25-75 wt. % of at least one polyfunctional monomer of the formula (II): ##STR2## wherein at least three of the R groups are CH.sub.2 .dbd.CH COO-- and each of the remaining is H or --OH, n.sub.1, n.sub.2, n.sub.3, n.sub.4, m.sub.1, m.sub.2, m.sub.3 and m.sub.4 are integers of 0, 1 or 2, and X is an integer of 1 to 10 and (iii) 0 to 50 wt. % of a monomer containing one acryloyloxy group and having a boiling point of at least 150.degree. C. at normal pressure and a viscosity of not higher than 20 cps/20.degree. C., and (b) 0.01-6.0 wt. parts, based on 100 wt. parts of the polyfunctional monomer mixture, of at least one photosensitizer. The coating composition is coated on a synthetic resin shaped article and then, irradiated with utraviolet rays in air to form a crosslinked coating film having a thickness of 1-30 microns.