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. 19, 1994
Filed:
Oct. 26, 1992
Yueh-Ling Lee, Sayre, PA (US);
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
An adhesive composition containing a latex binder, a latex plasticizer and a functional filler. The latex plasticizer includes a copolymer comprising (1) 0-15% by weight, based upon the weight of the copolymer, of acrylonitrile, methacrylonitrile or mixtures thereof, (ii) 80-85% by weight, based upon the weight of the copolymer, of butyl acrylate, ethyl acrylate, 2-ethylhexyl acrylate, lauryl acrylate, lauryl methacrylate, octyl acrylate, heptyl acrylate, or mixtures thereof, and (iii) 1-5% by weight, based upon the weight of the copolymer, of methacrylic acid, acrylic acid, itaconic acid, or mixtures thereof, said latex plasticizer having a T.sub.g less than that of the latex binder (a) and a decomposition temperature of at least 288.degree. C. The composition is useful for adhering polyimide films such as in the fabrication of flexible circuits.