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:
Jul. 07, 1992
Filed:
Aug. 29, 1991
Applicant:
Inventor:
Robin N Greene, Rockland, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
428 369 ; 428364 ; 528272 ; 528300 ; 528308 ;
Abstract
A thermoplastic, segmented, copolyetherester elastomer having soft segments derived from poly(alkylene oxide) glycols and bibenzoic acid, and hard segments constituting 10-17 weight percent of the elastomer and being 95 to 100% poly(1,3-propylenebibenzoate). Melt-spun fibers of the elastomer have significantly superior elastic and set properties and are less stiff than similar elastomeric fibers having the same soft segments but with hard segments of poly(ethylenebibenzoate), poly(1,4-butylenebibenzoate) or poly(1,6-hexylenebibenzoate).