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:
May. 21, 2002
Filed:
Aug. 05, 1999
Applicant:
Inventors:
Atsuo Tanaka, Yawata, JP;
Akira Yoshida, Kanuma, JP;
Assignee:
Yamauchi Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/506 ; B32B 2/508 ; B32B 2/510 ; B32B 2/516 ;
U.S. Cl.
CPC ...
B32B 1/506 ; B32B 2/508 ; B32B 2/510 ; B32B 2/516 ;
Abstract
A rubber for a hot press cushioning pad having a value of loss tangent (tan &dgr;) in accordance with dynamic viscoelasticity measurement of at most 0.04, wherein the temperature condition is set at a hot press temperature ranging from 150° C. to 300° C., and the frequency condition is set to a time period of one press cycle ranging from 1 to 2×10 seconds.