摘要:
A molding material contains, based on the sum of the components A and B, and, if required, C, D and/or E,A: 1-99% by weight of a particulate microemulsion polymer having a glass transition temperature below 0.degree. C. and a median particle size of less than 50 nm,B: 1-99% by weight of a semicrystalline polymer B, in particular selected from at least one polymer from semicrystalline polyamides, partly aromatic copolyamides, polyolefins, ionomers, polyesters, polyetherketones, polyoxyalkylenes and polyarylene sulfides,C: 0-50% by weight of a polymer selected from a particulate graft copolymer having a median particle size of from 60 to 10,000 nm, a thermoplastic polyurethane, a thermoplastic elastomer and an acrylate, diene, EP, EPDM or silicone rubber,D: 0-50% by weight of polycarbonates andE: 0-50% by weight of fibrous or particulate fillers or of a mixture thereof.
摘要:
The invention relates to a process for preparing an impact-modified plastic, where particles of a crosslinked rubber are produced from a first monomer mixture which has at least 50% by weight of conjugated diene compounds, the rubber particles are added to a second monomer mixture which has at least 85% by weight, preferably at least 90% by weight, in particular at least 98% by weight, of styrene, and the monomers of the second monomer mixture are polymerized. This process can prepare novel and improved impact-modified plastics. Novel impact-modified plastics are also described.
摘要:
The use of a thermoplastic molding composition which is not ABS, comprising, based on the total of the amounts of components A, B, C, and, where appropriate, D, this total being 100% by weight, a: as component A, from 1 to 48% by weight of at least one particulate emulsion polymer which has one or more phases and has a glass transition temperature below 0° C. in at least one phase, and has a median particle size from 50 to 1000 nm, b: as component B, from 1 to 48% by weight of at least one amorphous or semicrystalline polymer, c: as component C, from 51 to 90% by weight of polycarbonates, and d: as component D, from 0 to 47% by weight of conventional addictives and/or fibrous or particulate fillers, or a mixture of these, for producing moldings, or corresponding semifinished products, for the garden sector or animal-keeping sector.
摘要:
The graft copolymer made from a1: from 10 to 90% by weight of a particulate graft base A1, made from a particulate emulsion polymer with a glass transition temperature below 0° C. made from a11: from 70 to 100% by weight of butadiene or of at least one C1-8-alkyl acrylate, or of mixtures of these, as component A11, a12: from 0 to 20% by weight of at least one polyfunctional crosslinking monomer, as component A12, a13: from 0 to 30% by weight of other copolymerizable monomers, as component A13, the total amount of these being 100% by weight, a2: from 10 to 90% by weight of a graft A2 made from the following monomers, the amounts being based on A2, a21: from 60 to 100% by weight of at least one vinylaromatic monomer, or of a (meth)acrylic ester or of mixtures of these, as component A21, and a22: from 0 to 40% by weight of at least one ethylenically unsaturated monomer, as component A22, has a median particle diameter of from 130 to 500 nm and has polymodal particle size distribution in which less than 40% by weight of the particles are present in any particle size range of width 50 nm.
摘要:
The present invention relates to compositions comprising (i) as component (I), at least one molding composition comprising components A and B, where A) is a graft copolymer as component A, and B) is a thermoplastic copolymer as component B; and (ii) at least one cyclohexanepolycarboxylic acid derivative of the formula (I); as component (II) in which R1 is C1-C10-alkyl or C3-C8-cycloalkyl, m is 0, 1, 2, or 3, n is 2, 3, or 4, and R is hydrogen or C1-C30-alkyl; or the group —(COOR)n forms an anhydride of the formula where it is essential to the invention that component (I) comprises from 11 to 19.9% by weight of component A and from 80.1 to 89% by weight of component B, where each of the % by weight values is based on the entirety of components A and B, and the total of those values is 100% by weight, and also to a process for producing the composition of the invention, to the use of the composition of the invention for producing moldings, foils, foams, or fibers, and to moldings, foils, foams, or fibers comprising the composition of the invention.
摘要:
Thermoplastic moulding compositions comprising the following components: 5-95% of a copolymer A consisting of: 70-76% of vinylaromatic monomer(s) A1, 24-30% of vinyl cyanide monomer component(s) A2 and 0-50% of one or more unsaturated copolymerizable monomers A3, 0-60% of a graft rubber B and 5-50% of thin glass fibers C are advantageously used for injection moulding.
摘要:
Undesirable changes in shade brought about by low temperatures (Cold Stress Whitening) in impact-modified thermoplastic molding compositions F which comprise at least one elastomeric graft polymer A and at least one thermoplastic polymer B are reduced by adding from 10 to 200 ppm, based on the molding compositions F, of at least one polyorganosiloxane S to the impact-modified thermoplastic molding composition F.
摘要:
The present invention relates to thermoplastic molding compositions based on ASA (acrylonitrile-styrene-acrylate) with improved flowability and improved extrusion properties. The invention further relates to a process for preparing these thermoplastic molding compositions, their use and also, produced therefrom, reduced-gloss and antistatic films and moldings, and coatings with reduced gloss, and the use of these.
摘要:
Thermoplastic molding compositions comprising (A) 5 to 98%-wt., based on components (A) through (E), of at least one elastomeric graft copolymer, (B) 1 to 90%-wt., based on components (A) through (E), of a further copolymer, (C) 1 to 70%-wt., based on components (A) though (D), of an elastomeric block copolymer composed of at least one block CA (hard phase) having copolymerized units of a vinylaromatic monomer, and at least one elastomeric block C(B/A) (soft phase) having copolymerized units of a vinylaromatic monomer, and of a diene, (D) 0 to 300%-wt., based on components (A) through (C), of a polycarbonate, and (E) 0 to 30%-wt., based on components (A) through (E), of conventional additives and processing aids, are useful for producing films, moldings or fibers.
摘要:
A film in roll form, in particular for food packaging as substitute for a film made from polyvinyl chloride, comprises from 15 to 99.6% by weight of an elastomeric styrene-butadiene block copolymer, from 15 to 99.6% of a thermoplastic polymer, from 0.1 to 10% of an antifogging agent, from 0.1 to 5% of a primary antioxidant, from 0.1 to 5% of a secondary antioxidant and from 0.1 to 50% of other auxiliaries, and shrinks perpendicularly to the direction of take-off by not more than 3% during a storage period of three months.