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:
Nov. 16, 1999
Filed:
May. 13, 1997
Applicant:
Inventor:
Michel DeGrand, Bernay, FR;
Assignee:
Elf Atochem S.A., , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
428 366 ; 428 367 ; 4284744 ; 4284758 ; 4284755 ; 428522 ; 428520 ;
Abstract
The invention relates to a multilayer film, which is useful for making flexible sachets, comprising (i) a barrier film based on a mixture of polyamide and of polyolefin, and (ii), on at least one of its faces, a film based on a copolymer of ethylene and of an unsaturated ester, which can be welded by high frequency. The invention is useful for making flexible sachets of detergents, of bleach or of textile softeners.