摘要:
Polymer mixtures ofa. 10 to 60 parts by weight of a graft polymer,b. 10 to 50 parts by weight of a partially cross-linked, rubber like copolymer of from 5 to 40% by weight of acrylonitrile, styrene, alkyl methacrylate or mixtures thereof and from 95 to 60% by weight of alkyl acrylate having a gel content of from 20 to 99% by weight,c. 5 to 40 parts by weight of an uncross-linked polymer of styrenes, .alpha.-methyl styrenes, acrylonitrile, methacrylonitrile, esters of acrylic acid or methacrylic acid, vinyl C.sub.1 to C.sub.4 carboxylic acids or mixtures of these monomers having Staudinger Indices (.eta.) (determined in dimethyl formamide at 23.degree. C.) of from 0.3 to 1.5 dl/g andd. 1 to 45 parts by weight of a polymer of a cyclic aliphatic ester or of an aliphatic cyclic ester and an aliphatic cyclic carbonate.
摘要:
This invention relates to flexible, soft polymer mixtures which are suitable for the production of sheets with a leather-like appearance and can be worked up by calendering and deep drawing and to a process for their preparation.
摘要:
Polymer powders and thermoplastic moulding materials with improved properties are obtained if graft polymers and/or resins in particle form are used and small amounts of rubber-like polymers are polymerized or graft-polymerized onto their particle surfaces.
摘要:
Soft polymer mixtures of(a) 10 to 50 parts by weight of a graft polymer obtained from a particulate, highly cross linked diene or alkyl acrylate rubber and graft polymerized alkyl methacylate, acrylonitrile, styrene, alkyl acrylate or mixtures thereof and(b) 90 to 50 parts by weight of a partly cross-linked, particulate, rubber-like copolymer of acrylonitrile and/or methyl methacrylate and C.sub.1 to C.sub.8 alkyl acrylate having a gel content of from 60 to 99% by weight and an average particle diameter (d.sub.50) of from 0.1 to 0.6 .mu.m,and a process for the preparation of the mixtures and their use for the production of moulded articles.
摘要:
Molding compositions of polycarbonate, polyalkylene terephthalate and special graft polymer show high joint line strength and high toughness at low temperatures.
摘要:
A: Thermoplastic moulding materials made from a vinyl chloride homopolymer or copolymer containing at least 50% by weight of vinyl choloride units,B: a graft polymer, prepared by graft polymerization ofB1: 50 to 85 parts by weight of a mixture of at least two of the monomers styrene, acrylonitrile, methyl methacrylate and .alpha.-methyl styrene onB2: 50 to 15 parts by weight of an at least partially crosslinked butadiene or acrylate rubber having average particle diameters of 0.08 to 1 .mu.m, andC: a hydrogenated nitrile rubber in which the nitrile group content is 50 to 28% by weight and the degree of hydrogenation is greater than 50%, andD: optionally, a non-crosslinked, rubber-like ethylene or alkyl acrylate polymer, optionally containing copolymerized up to 70% by weight of vinyl acetate, acrylonitrile, methyl methacrylate or carbon monoxide,E: optionally at least partially crosslinked, rubber-like ethylene or alkyl acrylate polymer, optionally containing copolymerized up to 50% by weight of vinyl acetate, acrylonitrile, methyl methacrylate or carbon monoxide.
摘要:
The invention relates to new block copolymers consisting of recurring polysiloxane blocks and recurring conjugated diene homo-or copolymer blocks with particularly good rubber properties, in particular at low temperatures.
摘要:
Polyalkylene terephthalates which contain a fluorinated polyolefin in addition to a polymer having a glass transition temperature of less than -30.degree. C., are very tough, exhibit good stability to thermal shaping and hardness, and have a high modulus of elasticity and improved stress/strain behavior.
摘要:
This invention relates to thermoplastic moulding compositions of vinyl chloride polymers, certain graft polymers, certain resin-like copolymer additives and certain rubber-like copolymers for the production of films having improved resistance to ageing.
摘要:
Moulding compositions based on polyalkylene terephthalate, polycarbonate, polymer and fluorinated polyolefin have higher Vicat-softening temperature if the polymer and the fluorinated polyolefin are precipitated together from a mixture of the dispersions of both components.