The present invention relates to an extrudable polymer composition comprising: 99.5 to 99.95% of at least one hard-soft block copolymer comprising: at least 25% by weight of soft block polyethylene glycol (PEG) with functionality equal to 2, with respect to the total weight in copolymer; from 0.05 to 0.5% by weight of at least one polyol comprising at least three hydroxyl groups, with respect to the total weight of the composition; characterised in that: the weight-average molecular mass of said copolymer is at least equal to 100,000 g/mol; and the weight-average molecular mass of the polyol is at least equal to 1000 g/mol; and said at least one polyol binding hard copolymer blocks by ester bonds.
This invention relates in particular to the use of said composition in extrusion processes for manufacturing vapour-permeable objects.

The invention relates to a curable fluoroelastomer composition having low swelling tendency, comprising: A) a curable fluoroelastomer; B) a curing system; and C) 0.1 wt.-% to 30 wt.-% of a nitrogen-containing polymer, selected from polyimide, polyimide, mixtures and/or copolymers thereof, each relative to the total weight of fluoroelastomer and nitrogen-containing polymer, the nitrogen-containing polymer being present in particulate form of an average particle size in the range of 0.15 to 70 ?m and/or in fiber form having an average fiber diameter in the range of 0.15 to 70 ?m.

Pre-impregnated composite material (prepreg) that can be cured/molded to form aerospace composite parts. The prepreg includes carbon reinforcing fibers and an uncured resin matrix. The resin matrix includes an epoxy component that is a combination of a hydrocarbon epoxy novolac resin and a trifunctional epoxy resin and optionally a tetrafunctional epoxy resin. The resin matrix includes polyethersulfone as a toughening agent and a thermoplastic particle component.

A prepreg is provided that has excellent processability and handleability and that can be processed into a cured product with high heat resistance. Also provided is a method to produce such a prepreg in an industrially advantageous way without being restricted by the types and contents of the matrix resin components used. The prepreg includes at least components [A] to [D] as given below and a preliminary reaction product that is a reaction product of the component [B] and the component [C], at least one surface resin in the prepreg having a storage elastic modulus G in the range of 1.010.sup.3 to 2.010.sup.8 Pa as measured at a temperature of 40 C. and an angular frequency in the range of 0.06 to 314 rad/s: [A] carbon fiber, [B] epoxy resin, [C] curing agent, and [D] thermoplastic resin.

Pre-impregnated composite material (prepreg) that can be cured/molded to form aerospace composite parts. The prepreg includes carbon reinforcing fibers and an uncured resin matrix. The resin matrix includes an epoxy component, polyethersulfone as a toughening agent, and a curing agent. The resin matrix is also composed of a thermoplastic particle component that includes hybrid polyamide particles wherein each hybrid particle contains a mixture of amorphous and semi-crystalline polyamide.

A press-molded product includes: carbon fibers having a weight average fiber length of 1 mm or more; a polyamide-based resin (X); and a polyarylene ether-based resin (Y). The carbon fibers include carbon fiber bundles. The polyamide-based resin (X) and the polyarylene ether-based resin (Y) form a sea-island structure inside and outside the carbon fiber bundles. In the sea-island structure, one of the polyamide-based resin (X) and the polyarylene ether-based resin (Y) forms a sea phase and the other forms an island phase having a particle diameter Dr of 0.05 m or more and less than 50 m.

The present application relates to polymer compositions that provide barrier properties to oxygen, water vapor and/or hydrocarbons, to polymer film or sheet comprising the polymer composition and to their use in the manufacture or preparation of plastic material and/or plastic packaging. The present application also relates to a method of reducing oxygen water vapor and/or hydrocarbons permeability in plastic material and/or plastic packaging.

Motor vehicle components are subjected to continuous vibration during operation of the motor vehicle, and hydrolysis resistant (HR) glass fibres are included in polyamide compositions to improve the operational stability of the components.

Methods of making fiber reinforced composite articles are described. The methods may include the step of providing a pre-impregnated fiber-containing thermoplastic material to a mold for the article. The pre-impregnated fiber-containing thermoplastic material may include: (i) a plurality of fibers, and (ii) a first thermoplastic polymer made from a first reactive thermoplastic resin. Reactants of a second reactive thermoplastic resin may be introduced to fill open spaces in the mold that are left by the pre-impregnated fiber-containing thermoplastic material. The second reactive thermoplastic resin may then be polymerized to form a second thermoplastic polymer. The final fiber reinforced composite article includes at least two spatially distinct regions of thermoplastic polymer.

Methods of making fiber reinforced composite articles are described. The methods may include the step of providing a pre-impregnated fiber-containing thermoplastic material to a mold for the article. The pre-impregnated fiber-containing thermoplastic material may include: (i) a plurality of fibers, and (ii) a first thermoplastic polymer made from a first reactive thermoplastic resin. Reactants of a second reactive thermoplastic resin may be introduced to fill open spaces in the mold that are left by the pre-impregnated fiber-containing thermoplastic material. The second reactive thermoplastic resin may then be polymerized to form a second thermoplastic polymer. The final fiber reinforced composite article includes at least two spatially distinct regions of thermoplastic polymer.