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.

Date of Patent:
Jul. 27, 1982

Filed:

Aug. 07, 1979
Applicant:
Inventors:

Takayuki Katsuto, Iwaki, JP;

Shunzo Endo, Iwaki, JP;

Hideaki Doi, Iwaki, JP;

Naohiro Murayama, Iwaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428336 ; 156327 ; 156334 ; 4284761 ; 428483 ; 428355 ; 428518 ; 428519 ; 428521 ; 428412 ; 525285 ;
Abstract

A laminar thermoplastic resin structure comprising a plurality of thermoplastic resin layers is obtained by bonding thermoplastic resin layers with a layer, or layers, of a maleic acid-modified block copolymer of a conjugated diene and an aromatic vinyl monomer interposed therebetween. The laminar structure thus obtained possesses a high bonding strength at elevated temperatures, and also excellent processability since the bonding layer per se is of thermoplastic nature. Thus, this laminar structure is particularly suitable as a material for use at elevated temperatures, for example, a packaging material for retort sterilization or a pipe for conducting hot fluids.


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