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:
Feb. 23, 1993
Filed:
Mar. 09, 1992
Applicant:
Inventor:
Margaret M Bernard, La Verne, CA (US);
Assignee:
Avery Dennison Corporation, Pasadena, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08L / ;
U.S. Cl.
CPC ...
526261 ; 526 87 ; 526278 ; 52631843 ; 526325 ; 526931 ;
Abstract
There is provided inherently tacky, emulsion pressure-sensitive adhesive polymers comprising about 35 to about 65 percent by weight alkyl acrylates, about 15 to about 35 percent vinyl esters, about 20 to about 35 percent by weight diesters di-carboxylic acid, about 0.1 to 1 percent by weight of a reactive multifunctional monomer and up to about 10 percent by weight of an unsaturated carboxylic acids. The polymers are formed in the presence of a reactive surfactant, with or without a chain transfer agent. The preferred polymers have a glass transition temperature less than about -20.degree. C. and a gel content of at least 60 percent by weight.