公开(公告)号：ZA7805873B

公开(公告)日：1979-09-26

申请号：ZA7805873

申请日：1978-10-18

Applicant: SNIA VISCOSA

Inventor： CAVALLARO A ,  MATERA C ,  CAZZARO G ,  MALGERI D

IPC: D01F6/40 ,  D06M15/285 ,  D06M15/31 ,  C07C ,  C08F

CPC classification number: D06M15/285 ,  D01F6/40 ,  D06M15/31

公开(公告)号：ZA785873B

公开(公告)日：1979-09-26

申请号：ZA785873

申请日：1978-10-18

Applicant: SNIA VISCOSA

Inventor： CAVALLARO A ,  MATERA C ,  CAZZARO G ,  MALGERI D

IPC: D01F6/40 ,  D06M15/285 ,  D06M15/31 ,  C07C ,  C08F

Abstract: Textile fibers having reduced inflammability and high luster, constituted by copolymers of acrylonitrile, vinylidene chloride and a significantly homopolymerizable sulphonic comonomer are described. Significantly homopolymerizable comonomers are defined as monomers which homopolymerize with a conversion above 30 DEG -40 DEG under standard conditions set forth in the specification. A preferred class of such comonomers are the derivatives of acrylamidoalkanesulphonic acids, e.g. 2-acrylamido-2-methylpropane-sodium sulphonate. The fibers are spun from spinning dopes containing said copolymers in solution in organic solvent miscible with water and less than 4% of water. Said spinning dopes can be obtained by preparing a binary copolymer of acrylonitrile and the sulphonic monomer, in solution in the solvent, mixing the solution with a solution of acrylonitrile and vinylidene monomers in the same solvent, and subjecting the mixture to copolymerization. The copolymers finally obtained contain 50-85% of acrylonitrile, 13.5-46.5% of vinylidene chloride, and 1.5-3.5% of the sulphonic comonomer, the percentages being by weight.