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. 04, 2003
Filed:
Jun. 07, 2001
Applicant:
Inventors:
Takaaki Hirai, Nara, JP;
Minoru Fujishima, Nara, JP;
Hiroyuki Ueno, Nara, JP;
Hideyasu Matsumura, Shiga, JP;
Ikuo Morioka, Shiga, JP;
Yukio Aramomi, Shiga, JP;
Hiroyuki Yamagata, Shiga, JP;
Assignee:
Sekisui Plastics Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/402 ;
U.S. Cl.
CPC ...
B29C 4/402 ;
Abstract
The present invention provides a process for producing a molded foam article of a crystalline aromatic polyester resin. The process is characterized by heating the surface temperature of a mold for cavity-molding to the temperature within a range of from (td+35) to (Tg+57)°C. (Tg is a glass transition temperature of the crystalline aromatic polyester resin prepuffs), thereby to mold prepuffs, and cooling the surface of the mold to a temperature not lowered than Tg for at least 20 seconds.