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. 29, 1991
Filed:
Feb. 11, 1991
Applicant:
Inventors:
Assignee:
Japan Crown Cork Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220454 ; 220359 ; 525 98 ;
Abstract
Disclosed is a vessel closure having a liner formed from a composition comprising (i) a hydrogenated styrene/butadiene block copolymer having a melt index smaller than 0.1 g/10 min as measured at a temperature of 200.degree. C. under a load of 5 kg, (ii) liquid paraffin and (iii) a propylene resin. In this liner, the compression permanent strain and permanent elongation under high temperature conditions are extremely small, and therefore, even if a divergence is produced between the liner and the mouth portion of a vessel by thermal deformation or thermal shrinkage, a good sealing property can be maintained.