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. 02, 1981
Filed:
Dec. 17, 1979
Applicant:
Inventors:
Yasushi Tomura, Chiba, JP;
Fujio Sakuma, Kisarazu, JP;
Seiji Suzuki, Chiba, JP;
Masayuki Shimizu, Chiba, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 65 ; 526 73 ; 5263522 ;
Abstract
An improved process for the high pressure polymerization of ethylene using a battery of two reactors in which the preceding autoclave reactor having two reaction zones is connected in series with the succeeding autoclave reactor having one reaction zone through a heat exchanger. This process has a high efficiency of polymerization initiator and gives a polyethylene excellent in optical properties and processability in a high reaction yield.