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:
Jun. 09, 1998
Filed:
Sep. 30, 1996
Applicant:
Inventors:
Kiyoshi Matsuki, Nishinomiya, JP;
Yoshiaki Yawata, Takasago, JP;
Assignee:
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 71 ; 4283044 ; 4283084 ; 428332 ; 428402 ; 4285428 ; 428220 ; 521 56 ;
Abstract
A large-sized in-mold expansion-molded article of an olefin synthetic resin having 150 mm or more in thickness, 50% or more in fusion ratio and 10% or less in density distribution is disclosed. The expansion-molded article is obtainable by adoption of a process in which pre-expanded beads are charged into a mold, preheated and steamed before molding. Large-sized expansion-molded article of an olefin synthetic resin 500 mm or even more in thickness is obtainable by the present invention.