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.

Date of Patent:
Nov. 14, 1978

Filed:

May. 17, 1977
Applicant:
Inventors:

Akira Yamamoto, Yokkaichi, JP;

Masao Shiraishi, Yokkaichi, JP;

Masakatu Isozumi, Yokkaichi, JP;

Masato Yoshikawa, Yokkaichi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
5261692 ; 2524 / ; 526281 ; 526282 ; 526283 ; 526308 ; 526336 ; 526348 ;
Abstract

A linear ethylene-propylene random rubbery copolymer composed of 78 to 85 mole% of an ethylene unit and 15 to 22 mole% of a propylene unit and having a Mooney viscosity (ML.sub.1+4, 100.degree. C) of 30 to 50 and a molecular weight distribution corresponding to a Q value of 3.5 to 5.5. The rubbery copolymer may further contain a nonconjugated diene unit in an amount of 4 mole% or less based on the total amount of the ethylene, propylene and nonconjugated diene units. The ethylene-propylene copolymer or ethylene-propylene-nonconjugated diene copolymer affords a cable coating material having improved processability, and when blended with polyethylene or polypropylene, gives a blend having good flowability.


Find Patent Forward Citations

Yamamoto, Akira. (1978). Ethylene-propylene rubbery copolymer (U.S. Patent No. 4125699). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4125699

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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