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:
Jul. 09, 1985
Filed:
Apr. 11, 1983
Applicant:
Inventors:
Yoshiho Matsuo, Ichihara, JP;
Ryoji Nishijima, Ichihara, JP;
Atsuhiko Yoshino, Ichihara, JP;
Takai Kawashima, Ichihara, JP;
Assignees:
Nissan Chemical Industries, Ltd., Tokyo, JP;
Nissan Maruzen Polyethylene Company, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29F / ;
U.S. Cl.
CPC ...
264 83 ; 264 85 ; 264141 ; 5253338 ; 525388 ; 526138 ;
Abstract
A process for producing a blow molding resin comprises pelletizing a high density polyethylene prepared by means of a highly active Ziegler catalyst, at a temperature of at least 230.degree. C. in the presence of air or oxygen so as not to change the average molecular weight and the molecular weight distribution.