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:
Mar. 03, 1998
Filed:
Jun. 11, 1996
Applicant:
Inventors:
Akira Kabumoto, Yokohama, JP;
Naoki Yoshida, Yokohama, JP;
Masayasu Ito, Yokohama, JP;
Mitsunori Okada, Yokohama, JP;
Assignee:
The Furukawa Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521182 ; 521 74 ; 521 79 ; 264 458 ; 264 50 ; 264165 ; 26417717 ; 26417719 ; 2642103 ; 26421113 ; 2642112 ;
Abstract
A method of manufacturing a thermoplastic polyester foam sheet comprises forming a roll by overlapping a thermoplastic polyester sheet and a separator on each other and rolling them, impregnating an inert gas into the thermoplastic polyester sheet while the roll is kept in a pressurized inert gas atmosphere, and foaming the thermoplastic polyester sheet by heating it under atmospheric pressure.