Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Reexamination Certificate
2005-07-26
2005-07-26
Osele, Mark A. (Department: 1734)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
C528S308600, C264S103000, C264S210800, C264S211120, C264S3420RE, C057S282000
Reexamination Certificate
active
06921803
ABSTRACT:
A process for preparing poly(trimethylene terephthalate) fibers comprising (a) providing a poly(trimethylene terephthalate) composition comprising about 0.05 to about 5 mole % tetramethylene terephthalate repeat units and (b) spinning the polymer composition to form fibers. Poly(trimethylene terephthalate) fiber comprising poly(trimethylene terephthalate) composition comprising about 0.05 to about 5 mole % tetramethylene terephthalate repeat units, as well as yarns, fabrics (e.g., woven, knitted, and nonwoven fabrics) and carpets. A poly(trimethylene terephthalate) composition comprising about 0.05 to about 5 mole % tetramethylene terephthalate repeat units.
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English Translation of Japanese Patent Abstract (Pub. No. 62-021817).
International Search Report, date of mailing Sep. 11, 2003.
Chang Jing C.
Kurian Joseph V.
E.I. du Pont de Nemours and Company
Kuller Mark D.
Osele Mark A.
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