Abstract:
Material de moldeo termoplastico, que contiene, a) del 3 al 78 % en peso de uno o varios copolimeros de estireno, que no presentan ninguna unidad derivada deanhidrido de acido maleico, como componente A, b) del 15 al 90 % en peso de una o varias poliamidas como componente B, c) del 5 al 50 % en peso de uno o varios cauchos de injerto que modifican la resistencia al impacto sin doblesenlaces olefinicos en la fase de caucho como componente C, d) del 1 al 25 % en peso de uno o varios copolimeros de estireno, que, con respecto al componente D total,presentan del 0,5 al 5 % en peso de unidades derivadas de anhidrido de acido maleico, como componente D, e) del 1 al 30 % en peso de uno o varios cauchos adicionales a base de monomeros olefinicos sin estructuranucleo-envuelta y con al menos el 0,1 % en peso de monomeros funcionales como componente E, f) del 0 al 50 % en peso de uno o varios materiales de relleno en forma de fibra o en forma de particula comocomponente F, g) del 0 al 40 % en peso de aditivos adicionales como componente G,dando como resultado la cantidad total de los componentes A a E y opcionalmente F y G el 100 % en peso.
Abstract:
Procedimiento para la producción de materiales de moldeo termoplásticos, en el que los materiales de moldeotermoplásticos contienen a) del 3 al 79 % en peso de uno o varios copolímeros de (metil)estireno-acrilonitrilo, que no presentan ningunaunidad derivada de anhídrido de ácido maleico, como componente A, b) del 15 al 91 % en peso de una o varias poliamidas como componente B, c) del 5 al 50 % en peso de uno o varios cauchos como componente C, d) del 1 al 25 % en peso de uno o varios compatibilizadores como componente D, e) del 0 al 2 % en peso de uno o varios compuestos de bajo peso molecular, que contienen un grupo anhídridode ácido carboxílico, como componente E, f) del 0 al 50 % en peso de uno o varios materiales de relleno en forma de fibra o en forma de partícula comocomponente F y g) del 0 al 40 % en peso de aditivos adicionales como componente G, refiriéndose el % en peso en cada caso al peso total de los componentes A a G y dando como resultado juntos el100 % en peso, mediante el mezclado en estado fundido de los componentes A a G, caracterizado por que en una prensa extrusora de tornillo sin fin, que a lo largo de la dirección de transportecomprende en este orden al menos una zona de dosificación, una zona de plastificación, una zona dehomogeneización y una zona de descarga, tras la adición de los componentes A, B y C a la zona de dosificación enuna primera etapa de procedimiento en ausencia de componente D, se genera una masa fundida, y en una segundaetapa de procedimiento tras la adición del componente D a la zona de homogeneización, se realiza la incorporaciónmediante mezcla del componente D en esta masa fundida.
Abstract:
하기단계를포함하는, 멤브레인 M 의제조방법: a) 적어도하나의중합체 P 및적어도하나의용매 S 를포함하는도프용액 D 를제공하는단계, b) 적어도하나의응고제 C 를상기도프용액 D 에첨가하여상기도프용액 D 로부터상기적어도하나의중합체 P 를응고시켜, 멤브레인 M 을수득하는단계, 상기적어도하나의용매 S 는 50 중량% 초과의적어도하나의하기화학식 (I) 에따른화합물을포함함:(식중, R및 R는독립적으로 C내지 C알킬이고, R은 H 또는지방족잔기 (rest) 로부터선택되고, R는 H 또는지방족잔기로부터선택되고, AO 는하나이상의알킬렌옥시드를나타내고, n 은 0 내지 100 의수임).
Abstract:
The present invention relates to moulding compounds comprising (A) from 29 to 89% by weight of at least one polyarylene ether sulphone, having a mean number of phenolic end groups per chain from 0 to 0.2, (B) from 0.5 to 20% by weight of a thermotropic polymer, (C) from 0.5 to 10% by weight of a polyarylene ether having predominantly OH end groups, (D) from 10 to 70% by weight of at least one fibrous or particulate filler, (E) from 0 to 40% by weight of additive or processing auxiliaries, wherein the sum of the weight fractions gives 100% by weight, based on the thermoplastic moulding compound.
Abstract:
The present invention relates to a method for producing fiber-reinforced composite materials, by saturating a plurality of continuous filaments or woven fabrics, optionally together with reinforcement materials, containing caprolactam and other starting materials for polyamide 6, or other starting materials for copolymers of the caprolactam, passing the materials through at temperatures between 70 and 100ºC, and anionically polymerizing them at temperatures between 100 and 190ºC, and optionally re-polymerizing them at temperatures between 90 and 170ºC.
Abstract:
The invention relates to thermoplastic molding compositions, comprising A) from 35 to 95% by weight of at least one graft copolymer A), which is obtainable via reaction of A1) from 5 to 95% by weight of a polymer A1), which is obtained from at least one dicarboxylic anhydride a11) and from at least one vinylaromatic comonomer a12), and A2) from 5 to 95% by weight of a polyamide A2), B) from 5 to 40% by weight of at least one ungrafted or grafted, non-particulate rubber without core-shell structure B), which has functional groups which can react with the end groups of component A), C) from 0 to 50% by weight of at least one particulate or fibrous filler or particulate or fibrous reinforcing material C), D) from 0 to 60% by weight of at least one copolymer D) composed of vinyl aromatic monomers d1) and of comonomers d2), and E) from 0 to 40% by weight of at least one other additive E), where the entirety of components A) to E) gives 100% by weight, and also to processes for preparation of the thermoplastic molding compositions, to the use of the thermoplastic molding compositions for production of moldings, of foils, of fibers, or of foams, and finally to the moldings, foils, fibers, and foams obtainable from the thermoplastic molding compositions.
Abstract:
Thermoplastic moulding compositions comprising: A) from 40 to 96% by weight of a partly aromatic polyamide, B) from 2 to 30% by weight of a copolymer of B 1 ) from 35 to 89.9% by weight of ethylene, B 2 ) from 10 to 60% by weight of 1-octene or 1-butene or propylene or a mixture thereof and B 3 ) from 0.05 to 5% by weight of functional monomers selected from the group consisting of carboxylic acid, carboxylic anhydride, carboxylic ester, carboxamide, carboximide, amino, hydroxyl, epoxide, urethane and oxazoline groups and mixtures thereof, C) from 1 to 50% by weight of fibrous or particulate fillers or mixtures thereof, D) from 0.1 to 10% by weight of D 1 ) at least one highly branched or hyperbranched polycarbonate having an OH number of from 1 to 600 mg of KOH/g of polycarbonate (in accordance with DIN 53240, Part 2) or D 2 ) at least one highly branched or hyperbranched polyester of the A x B y type where x is at least 1.1 and y is at least 2.1 or a mixture thereof, E) from 0 to 15% by weight of an electrically conductive additive, F) from 0 to 30% by weight of further additives, where the sum of the percentages by weight of the components A) to F) is 100%.
Abstract:
Thermoplastic moulding compositions comprising A) from 40 to 96.2% by weight of a semiaromatic polyamide, B) from 2 to 30% by weight of an impact-modifying polymer which contains functional groups, C) from 1 to 50% by weight of fibrous or particulate fillers or a mixture of these, D) from 0.2 to 5% by weight of a lubricant, E) from 0.5 to 15% by weight of an electrically conductive additive, F) from 0 to 30% by weight of other additives, where the total of the percentages by weight of components A) to F) is 100%.
Abstract:
The invention relates to a method for producing dyed textiles comprising polypropylene fibres, according to which polypropylene (A) is first mixed into the melt together with polymers (B) that can be thermoplastically processed and block copolymers (C), the latter having polar and non-polar blocks, and the mixture is then processed to form undyed polypropylene fibres. Said fibres are processed to form textiles and the textiles are then dyed in an aqueous bath or printed. The invention also relates to undyed polypropylene fibres that are particularly suitable for carrying out said method.
Abstract:
Block copolymer comprising polyarylene ether blocks and polyalkylene oxide blocks, wherein said block copolymer comprises at least two polyalkylene oxide blocks that are endcapped with different endcapping groups.