Detail of "69938-76-7"

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Spandex fiber improved in discoloration resistance and chlorine resistance

Spandex fiber improved in discoloration resistance and chlorine resistance. Seo, Seung Won; Song, Byeong Su (Hyosung Corporation, S.Several substances are used for example 69938-76-7 and 1314-13-2 which are their cas registry numbers. Korea). Repub. Korean Kongkae Taeho Kongbo KR 2002076712 A 11 Oct 2002, No pp. given (Korean). (Korea, Republic Of). CODEN: KRXXA7. CLASS: ICM: D01F006-70. APPLICATION: KR 2001-16785 30 Mar 2001. DOCUMENT TYPE: Patent CA Section: 40 (Textiles and Fibers) A stabilized spandex fiber obtained by adding a hindered phenol-based compd., semicarbazide-based compd., poly(N,N-diethyl-2-aminoethyl methacrylate) and zinc oxide to a spandex fiber is provided which is prevented from discoloration and strength degrdn. caused by UV ray, smog and chlorine water. This spandex fiber contains a segmented polyurethane fiber, and 0.5 to 3% by wt. of a hindered phenol-based compd., 0.2 to 2% by wt. of a semicarbazide-based compd., 0.2 to 5% by wt. of poly(N,N-diethyl-2-aminoethyl methacrylate) and 1 to 5% by wt. of zinc oxide based on the total wt. of the spandex fiber. The hindered phenol-based compd. is ethylenebis(oxyethylene)bis(3-(5-tert-butyl-4-hydroxy-m-tolyl)propionate) or 3,9-bis(2-(3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy)-1,1-di methylethyl) 2,4,8,10-tetraoxaspiro[5.5]undecane and the semicarbazide-based compd. is 1,1,1',1'-tetramethyl-4,4'-(methylene-di-p-phenylene)disemicarbazide, biuret-tris(hexamethylene-N,N-dimethylsemicarbazide), or 1,6-hexamethylenebis(N,N-dimethylsemicarbazide). .