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:
Jan. 08, 1991
Filed:
Oct. 31, 1988
Applicant:
Inventors:
Toru Ueki, Kanagawa, JP;
Hajime Sentoku, Kanagawa, JP;
Takashi Miyazaki, Tokyo, JP;
Eiichi Sugihara, Kanagawa, JP;
Assignee:
Mitsui Toatsu Chemicals, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
428 366 ; 428516 ; 525 74 ; 525 78 ;
Abstract
As an adhesive used between a polypropylene layer and an ethylene/vinyl alcohol copolymer layer, there is provided an adhesive composition that comprises 98.9 to 59.9% by weight of a modified polypropylene (A) partly or fully grafted with an unsaturated carboxylic acid or its derivative, 1.0 to 40% by weight of an ethylene/.alpha.-olefin copolymer (B) having a density of 0.915 to 0.940 g/cc, and a melting point of 115.degree. to 130.degree. C., and 0.1% by weight or more but less than 3% by weight of a hydrocarbon type synthetic elastomer (C).