公开(公告)号：DK39076A

公开(公告)日：1976-08-01

申请号：DK39076

申请日：1976-01-30

Applicant: BAYER AG

Inventor： REINEHR U ,  NOGAJ A ,  LORENZ G

IPC: D01F6/18 ,  D01F6/38 ,  D02J1/22 ,  D01F

Abstract: The invention relates to highly shrinkable fibres or filaments of acrylonitrile polymers or copolymers which have a shrinkability of at least 35% and a fibre strength of at least 2 p/dtex.

公开(公告)号：DK526474A

公开(公告)日：1975-06-09

申请号：DK526474

申请日：1974-10-08

Applicant: BAYER AG

Inventor： LOHWASSER H ,  NOGAJ A ,  WIEDEN H

IPC: D01F8/08 ,  D06M

Abstract: 1434160 Polyacrylonitrile composite fibres BAYER AG 4 Oct 1974 [9 Oct 1973] 43097/74 Heading B5B Polyacrylonitrile composite fibres are made by dry-spinning two different polyaorylonitrile polymers in side-by-side arrangement from dimethyl formamide solution, stretching the fibre to at least three times its original length in hot water containing 12 to 30% dimethyl formamide, and drying under tension or partial shrinkage. The stretching may be carried out in one or two stages, and the fibres may be passed through a further bath of hot water containing 12 to 20% dimethyl formamide either after stretching or between the stretching stages. The two polymers may be in the ratio from 50 : 50 to 35 : 65 and contain at least 85% acrylonitrile. Other comonomers may be, e.g. methyl acrylate, methylacroylaminobenzenebenzenedisulphonimide, or sodium methallylsulphonate.

公开(公告)号：SE337922B

公开(公告)日：1971-08-23

申请号：SE1200266D

申请日：1966-09-06

Applicant: BAYER AG

Inventor： BRENSCHEDE W ,  MARZOLPH H ,  NOGAJ A ,  WANDEL M ,  REICHARDT H ,  REICHLE A

IPC: C08K5/12 ,  C08K5/42 ,  C08L33/20 ,  C08L67/02 ,  C08F29/54 ,  C08F45/00 ,  C08F47/00 ,  C08F47/12

Abstract: Acrylonitrile polymers containing at least 80% by weight of acrylonitrile units are plasticized with 1 to 20% by weight of polymer of a plasticizer comprising an aryl ester of a C6-C18 aliphatic sulphonic acid or a mixture of a dialkyl phthalate having 1 to 4 carbon atoms in each alkyl group and either an aryl ester of an aliphatic sulphonic acid or a polyester derived from adipic acid and a diol (e.g. a C2-C8 aliphatic diol). The polymer may be a homopolymer or a copolymer, e.g. with methyl acrylate. The plasticized polymers are processed to form filaments, fibres or films. The plasticizer may be added to a solution of the polymer in a solvent such as dimethyl formamide, dimethyl acetamide or dimethyl sulphone, from which the shaped products can then be formed; or the plasticizer may be admixed with the polymer before dissolution.