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. 09, 1996
Filed:
Jul. 20, 1995
Applicant:
Inventors:
Assignee:
Elf Atochem S.A., Puteaux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08A / ; C08L / ; C08G / ;
U.S. Cl.
CPC ...
525 56 ; 525 58 ; 525 61 ; 5253288 ; 525374 ;
Abstract
Unique hot-melt adhesive compositions that irreversibly crosslink in a few days in the presence of atmospheric moisture comprise a polyisocyanated EVA terpolymer having a melt index at 190.degree. C. ranging from 100 to 1,000, such polyisocyanated terpolymer comprising (1) from 60% to 90% by weight of ethylene, (2) from 10% to 40% by weight of vinyl acetate and (3) from 5 to 60 meq. OH of an ethylenically unsaturated termonomer bearing at least one primary hydroxyl functional group per mole, and the composition being essentially devoid of free hydroxyl functional groups.