首页>
外国专利>
MODACRYLIC FILAMENTS SPINNABLE SOLUTIONS EMPLOYED IN THEIR PRODUCTION AND PROCESSES FOR PRODUCING SUCH FILAMENTS AND SOLUTIONS
MODACRYLIC FILAMENTS SPINNABLE SOLUTIONS EMPLOYED IN THEIR PRODUCTION AND PROCESSES FOR PRODUCING SUCH FILAMENTS AND SOLUTIONS
展开▼
机译:其生产中使用的莫代尔细丝可纺解决方案以及生产此类细丝和解决方案的过程
展开▼
页面导航
摘要
著录项
相似文献
摘要
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.
展开▼