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:
May. 10, 1977
Filed:
Apr. 09, 1975
Applicant:
Inventors:
Richard D Chapman, Pensacola, FL (US);
Donald A Holmer, Pensacola, FL (US);
Oscar A Pickett, Jr, Pensacola, FL (US);
James H Saunders, Pensacola, FL (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 260 / ; 264235 ; 264346 ;
Abstract
Dimensionally stable fibers are produced from copolymers prepared from substantially equimolar amounts of hexamethylene diamine and a 50:50 to 80:20 mixture of terephthalic and isophthalic acids by heating essentially amorphous fibers melt spun from the copolymers to a temperature between about 160.degree. C. and 300.degree. C. for a short period of time. The dimensionally stable fibers combine many of the best properties of nylon 66 and poly(ethylene terephthalate) and are particularly useful in tire and textile applications.