IP Library Granted Patent US 7,351,671
Granted Patent B2
US 7,351,671 · App. 10/508,886 · Granted Apr 1, 2008

Union fabric with flame resistance

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Quick Facts
Patent No.
US 7,351,671
App. No.
10/508,886
Granted
Apr 1, 2008
Kind
B2
Abstract

A fabric is provided that has high degree of flame resistance in the case of a union fabric consisting of a halogen-containing flame resistant fiber including antimony compounds, and a cellulosic fiber, and the fabric is classified into class M1 of NF P 92-503 combustion test in France. A flame resistant union fabric obtained by co-weaving: (A) a fiber yarn 30% to 70% that has, as a principal component, a halogen-containing flame resistant fiber including an antimony compound 25 parts to 50 parts in an acrylic based copolymer 100 parts consisting of acrylonitrile 30% to 70% by weight, a halogen containing vinyl based monomer 30% to 70%, and a vinyl based monomer copolymerizable therewith 0% to 10%; and (B) a compound yarn 70% to 30% consisting of a cellulosic fiber (b-1) and a fiber melting at temperatures of 200 degrees C. to 400 degrees C. (b-2).

Claims (7)

1. A union fabric obtained by co-weaving:

a fiber yarn (A) that has, as a principal component, a halogen-containing flame resistant fiber including 25 to 50 parts by weight of an antimony compound in 100 parts by weight of an acrylic based copolymer consisting of 30% to 70% by weight of acrylonitrile, 30% to 70% by weight of a halogen-containing vinyl based monomer and 0% to 10% by weight of a vinyl based monomer copolymerizable therewith; and

a compound yarn (B) consisting of a cellulosic fiber (b-1) and a fiber melting at temperatures of 200 degrees C. to 400 degrees C. (b-2);

said fiber yarn (A) comprising 30% to 70% by weight of the union fabric and said compound yarn (B) comprising 70% to 30% by weight of the union fabric wherein the total weight of the fabric is 100%;

said co-woven fabric being flame resistant to an extent sufficient to pass France's Class M1 in the NF-P 92-503 Combustion Test.

2. The flame resistant union fabric according to claim 1 , wherein the cellulosic fiber (b-1) is at least one kind selected from a group consisting of cotton, hemp, rayon, polynosic, cupra, acetate, and triacetate.

3. The union fabric according to claim 1 , wherein the fiber melting at temperatures of 200 degrees C. to 400 degrees C. (b-2) is a polyamide fiber.

Assignments (2)
CHANGE OF ADDRESS Recorded Jan 15, 2014
From: KANEKA CORPORATION
To: KANEKA CORPORATION
Reel/Frame 032019/0901 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 23, 2004
From: ADACHI, MASAYUKI; MATSUMOTO, TAKAHARU; TAMURA, MASANOBU
To: KANEKA CORPORATION
Reel/Frame 016381/0328 →