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:
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.
Abstract:
The invention relates to a process for the preparation of a hollow filament (F) based on one or several molten or dissolved hyperbranched polymers (P) and potentially one or several further polymers (FP), characterized in that the molten or dissolved hyperbranched polymer (P) or the mixture of the hyperbranched polymer (P) with the further polymer (FP) is passed through one or several spinnerets (S), wherein the ratio between the spinneret die-length (L) and the die-channel (Delta-D) is between 0.1 and 9.5. The process can be applied for the preparation of hyperbranched polyethersulfone (HPES) hollow filaments.
Abstract:
The invention relates to thermoplastic molding compounds, containing: A) 10 to 99 wt.-% of at least one thermoplastic polyamide, B) 0.01 to 30 wt.-% of at least one highly-branched or hyper-branched polyether amine, C) 0 to 70 wt.-% of further additives, wherein the sum of the weight percentages of said components A) through C) results as 100%.
Abstract:
The invention relates to a method for producing polyaryl ethers. The invention is characterized by a polycondensation of the monomer units as the starting materials and a concurrent irradiation with microwaves. The invention allows the production of thermoplastic molding masses having improved color properties.