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:
Oct. 10, 1989
Filed:
Jun. 02, 1988
Applicant:
Inventor:
Edward J Deyrup, Northeast, MD (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428216 ; 428480 ; 428483 ; 428325 ;
Abstract
A composite structure comprising at least one core layer comprising polyethylene terephthalate and at least one outer layer on each side of the core layer, comprising polyethylene terephthalate and about 10 to about 60 percent glass flake, based on the weight of the outer layer, provides thermoformed articles with good high temperature stiffness and good surface properties.