Acrylonitrile copolymers suitable for making flame-resisting fibers
AssigneeSocieta' Italiana Resine S.p.A.
InventorsLuciano Console, Ferdinando Bencini, Enzo Chiellini
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Abstract
A copolymer suitable for making self-extinguishing fibers, containing at least 50 wt.% acrylonitrile, from 2 to 30 wt.% vinyl or vinylidene chloride, from 0 to 10 wt.% of a neutral, ethylenically unsaturated, non-halogenated monomer and from 2 to 40 wt.% of alpha-bromoacrylonitrile.
Claims10
A copolymer suitable for making self-extinguishing fibers, consisting essentially of at least 50 wt.% of acrylonitrile, from 2 to 30 wt.% of vinyl or vinylidene chloride, from 0 to 10 wt.% of a neutral, ethylenically unsaturated, non-halogenated monomer and from 2 to 40 wt.% of alpha-bromoacrylonitrile.
A copolymer suitable for making self-extinguishing fibers, consisting essentially of at least 70 wt.% of acrylonitrile, from 10 to 25 wt.% of vinyl or vinylidene chloride, from 0 to 5 wt.% of a neutral, ethylenically unsaturated, non-halogenated monomer and from 5 to 20 wt.% of alpha-bromoacrylonitrile.
A copolymer suitable for making self-extinguishing fibers, consisting essentially of at least 50 wt.% acrylonitrile, from 2 to 30 wt.% vinyl or vinylidene chloride, from 0 to 10 wt.% of a neutral, ethylenically unsaturated, non-halogenated monomer, from 2 to 40 wt.% of alpha-bromoacrylonitrile and from 0.1 to 3 wt.% of a copolymerized monomer carrying sulphonic groups.
A copolymer suitable for making self-extinguishing fibers, consisting essentially of at least 70 wt.% acrylonitrile, from 10 to 25 wt.% vinyl or vinylidene chloride, from 0 to 5 wt.% of a neutral, ethylenically unsaturated, non-halogenated monomer, from 5 to 20 wt.% alpha-bromoacrylonitrile and from 0.1 to 3 wt.% of a copolymerized monomer carrying sulphonic groups.
Dependencies are inferred from the claim text.