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. 08, 1994
Filed:
Aug. 17, 1992
Applicant:
Inventors:
Keisuke Funaki, Ichihara, JP;
Komei Yamasaki, Sodegaura, JP;
Assignee:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29B / ; C08L / ;
U.S. Cl.
CPC ...
428402 ; 528502 ; 528503 ; 5263472 ; 524577 ; 525241 ; 2641771 ; 26417717 ; 2641772 ; 26433117 ; 264345 ; 264348 ;
Abstract
Disclosed are a material for extrusion molding comprising a styrene-based polymer having a high degree of syndiotactic configuration, a melt viscosity of 10.sup.3 to less than 10.sup.6 poise measured at 300.degree. C. and a shearing rate of 10/sec, and a crystallinity of 15% or more, a process for preparation of the said material and a process for preparation of a molding product therefrom. The molding product prepared according to the present invention has excellent properties such as heat resistance and chemical resistance.