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:
Jan. 19, 1982
Filed:
Apr. 02, 1980
Applicant:
Inventors:
Masaki Fujii, Yokkaichi, JP;
Mitsutaka Miyabayashi, Yokkaichi, JP;
Hironori Todaka, Suzuka, JP;
Yoshihiro Ishizaki, Suzuka, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525321 ; 260 / ; 426126 ; 428161 ; 525 53 ; 525247 ; 525333 ; 526 79 ; 526347 ; 5263486 ; 526916 ; 528481 ;
Abstract
A propylene copolymer, which comprises units of (A) propylene, (B) a monomer selected from the group consisting of branched alpha-olefins (i.e. 4-methyl-1-pentene), styrene and styrene derivatives (e.g. methyl styrene), and (C) an optional monomer selected from the group consisting of straight-chain alpha-olefins of 2 to 12 carbon atoms other than propylene (e.g. ethylene), and which is defined by its thermal analysis data on a differential scanning calorimeter; and a process for producing the copolymer. Block copolymers are preferable.