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. 16, 1988
Filed:
Sep. 12, 1986
Applicant:
Inventors:
Charles C Hwo, Sugarland, TX (US);
Masaki Kohyama, Tokyo, JP;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428516 ; 428349 ; 525240 ; 525198 ;
Abstract
A polymer blend with good hot tack and a low and broad heat seal initiation temperature range for vertical and horizontal form and fill film packaging which contains a copolymer of butene-1 and propylene and a copolymer of propylene and ethylene.