US 7,608,329 B2
	Polylactic acid resin, textile products obtained therefrom, and processes for producing textile products
Hiroshi Kaijiyama, Hofu (Japan); Hideo Ueda, Hofu (Japan); Hiroji Yoshida, Okazaki (Japan); and Toichi Ogura, Tokai (Japan)
Assigned to Toray Industries, Inc., (Japan)
Filed on Sep. 26, 2008, as Appl. No. 12/199,245.
Application 12/199245 is a division of application No. 10/018732, filed on Mar. 08, 2002, granted, now 7,445,841.
Claims priority of application No. 11-172414 (JP), filed on Jun. 18, 1999; application No. 11-205836 (JP), filed on Jul. 21, 1999; application No. 11-205838 (JP), filed on Jul. 21, 1999; application No. 11-210370 (JP), filed on Jul. 26, 1999; application No. 11-216585 (JP), filed on Jul. 30, 1999; application No. 11-259914 (JP), filed on Sep. 14, 1999; application No. 11-264727 (JP), filed on Sep. 20, 1999; application No. 11-273086 (JP), filed on Sep. 27, 1999; and application No. 2000-000609 (JP), filed on Jan. 06, 2000.
Prior Publication US 2009/0035571 A1, Feb. 05, 2009
Int. Cl. D02G 3/00 (2006.01); C08G 69/26 (2006.01)

U.S. Cl. 428—364  [428/369; 428/373; 442/364; 528/49; 528/80; 528/84; 528/354; 528/361]

10 Claims

1. A polylactic acid resin comprising a linear polylactic acid with a relative viscosity ηrel of in the range of 2.7 to 3.9, prepared from lactic acid monomers wherein at least 95 mol % of the lactic acid is an L-isomer, and wherein the resin contains 0 to 30 ppm of tin (Sn) and 0 to 0.5% by weight of residual monomer.