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. 20, 1976
Filed:
Mar. 05, 1973
Applicant:
Inventors:
John Edward Priddle, Welwyn, EN;
Andrzej Pajaczkowski, Harpenden, EN;
Peter Incledon Vincent, Welwyn Garden City, EN;
Assignee:
Imperial Chemical Industries Limited, London, EN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428442 ; 526317 ; 428441 ;
Abstract
Windows for vehicles particularly windscreens comprise sheets of glass adhesively bonded together by means of a hot melt adhesive which is an ethylene copolymer containing from 7 to 18% by weight of methacrylic acid and sufficient methyl methacrylate such that together the methyl methacrylate and methacrylic acid constitute from 20 to 35% by weight of the copolymer and the copolymer has a melt flow index of at least 0.1 and not more than 2. Also disclosed are ethylene copolymers as defined above.