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:
Oct. 02, 2001

Filed:

Oct. 13, 1998
Applicant:
Inventors:

Kan'ichi Sato, Hirakata, JP;

Masayuki Oishi, Hirakata, JP;

Satoshi Fujimoto, Hiratsuka, JP;

Makoto Nogawa, Hiratsuka, JP;

Assignee:

Komatsu LTD, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/318 ; B29C 4/320 ;
U.S. Cl.
CPC ...
B29C 4/318 ; B29C 4/320 ;
Abstract

A composite sheet material, in which at least either one of opposed surfaces is composed of a glass layer for the purpose of surface protection from scratching, can be easily produced without causing bonding defects and stress-strain. A method of such a material is also disclosed. This material comprises (a) a glass layer made of sheet glass and constituting one of the opposed surfaces of the composite sheet material; and (b) a resin layer constituting the other surface of the material and molded by applying a uniform pressure to an entire molten resinous material introduced onto the glass layer so as to be elongated, spreading over the glass layer, these glass layer and said resin layer being laminated.


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