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:
Apr. 30, 1991
Filed:
Aug. 07, 1989
Applicant:
Inventors:
Masaaki Miyamoto, Kitakyushu, JP;
Hidemi Nakanishi, Kitakyushu, JP;
Takayoshi Tanaka, Kitakyushu, JP;
Assignee:
Mitsubishi Kasei Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
5254205 ; 525432 ;
Abstract
A method for producing a block copolyamide, which comprises polycondensing a prepolymer prepared from a dimerized fatty acid and a diamine and having a number average molecular weight of from 1,000 to 50,000, with a polyamide material other than said prepolymer component or a prepolymer thereof.