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. 15, 2002
Filed:
Aug. 04, 1997
Applicant:
Inventor:
Mark Graham Branch, Ashby-de-la-Zouch, GB;
Assignee:
Betts UK Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 2/320 ; B32B 5/16 ; B65D 3/508 ;
U.S. Cl.
CPC ...
B29D 2/320 ; B32B 5/16 ; B65D 3/508 ;
Abstract
Compositions having improved gas/vapor barrier qualities are described. The compositions are composed of a substantially non-polar resin and a lamellar filler, the lamellar filler delaminating under high shear, to increase its aspect ratio. Also described are compositions composed of a non-polar thermoplastic resin filled with platelets of talc having an aspect ratio of at least 5; the platelets have an average aspect ratio of between 16-30 and a CIE whiteness index of at least 40.