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:
Oct. 06, 1981
Filed:
Aug. 31, 1973
Applicant:
Inventors:
Robert W Campbell, Bartlesville, OK (US);
H Wayne Hill, Jr, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Co., Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528346 ; 8516 ; 260 / ; 260 / ; 2641 / ; 528338 ; 528339 ; 528345 ; 528349 ;
Abstract
A new polyamide composed at least primarily of 1,4-cyclohexane dicarboxylic acid and 5-methyl-1,9-nonanediamine, the polyamide having less than 5 olefinic double bonds per 100 diamine units, an inherent viscosity of at least about 0.6, a polymer melt temperature of at least about 200.degree. C., a T.sub.g in the range of about 90.degree. to about 130.degree. C., and a T.sub.m in the range of about 260.degree. C. to about 310.degree. C. can be formed into fibers without the use of plasticizers. Such fibers can be produced with a boiling water shrinkage of less than 30 percent.