| US 7,585,795 B2 | ||
| Sheet and interior material | ||
| Yoshikazu Yakake, Omihachiman (Japan); Masaru Ueno, Anpachi-gun (Japan); and Makoto Nishimura, Otsu (Japan) | ||
| Assigned to Toray Industries, Inc., Tokyo (Japan) | ||
| Appl. No. 11/547,149 PCT Filed Mar. 29, 2005, PCT No. PCT/JP2005/005793 § 371(c)(1), (2), (4) Date Sep. 29, 2006, PCT Pub. No. WO2005/095706, PCT Pub. Date Oct. 13, 2005. |
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| Claims priority of application No. 2004-098099 (JP), filed on Mar. 30, 2004; and application No. 2004-119938 (JP), filed on Apr. 15, 2004. | ||
| Prior Publication US 2007/0197116 A1, Aug. 23, 2007 | ||
| Int. Cl. D04H 3/00 (2006.01); D04H 1/00 (2006.01); D04H 5/00 (2006.01) | ||
| U.S. Cl. 442—334 [442/327; 442/328; 442/333] | 18 Claims |
1. A sheet like product comprising a non-woven fabric in which ultra-fine fibers of a single fiber fineness of 0.5 dtex or
less are entangled and an elastomeric binder mainly composed of a polyurethane, wherein said polyurethane is a polycarbonate-based
polyurethane having a polycarbonate skeleton represented by both of the following general formulas (1) and (2), and having
a gelation point of 2.5 ml to 6 ml
 wherein R1 and R2 are aliphatic hydrocarbon groups with 7 to 11 carbons, and they may be same or different, n and m are positive integers, and
when R1 and R2 are different, it is a block copolymer or a random copolymer,
 wherein R3 and R4 are aliphatic hydrocarbon groups with 3 to 6 carbons, and they may be same or different, x and y are positive integers, and
when R3 and R4 are different, it is a block copolymer or a random copolymer.
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