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. 23, 1991
Filed:
Jun. 07, 1990
Applicant:
Inventors:
William J Hodgson, Jr, Baytown, TX (US);
Jeffrey A Middlesworth, Webster, TX (US);
Assignee:
Exxon Chemical Patents Inc., Linden, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ; B29C / ; B32B / ;
U.S. Cl.
CPC ...
156 85 ; 156163 ; 156229 ; 15624411 ; 15624424 ; 156290 ; 264171 ; 2642102 ; 2642106 ; 264211 ; 264230 ; 2642356 ; 2642884 ; 2642896 ; 2642902 ; 2643 / ;
Abstract
This invention provides a process for preparing a heat shrinkable film by extruding a blend of elastomer, hydrocarbon oil and polyolefin to form a film, stretch orienting the film to form a stretched film, annealing the stretched film while still under stress, then cooling while further maintaining stress on the film. This invention further provides a process for preparing an elasticized composite material by attaching strips of the heat shrinkable film to a flexible substrate and then heating the composite.