摘要:
The invention relates to an adhesion promoter composition containing at least one polymer A selected from at least one epoxy resin-phenolic resin pre-condensate, a mixture of at least one epoxy resin-phenolic resin pre-condensate and epoxy resins, a mixture of epoxy resins and phenolic resins, polyamide resins or blends thereof, and also relates to at least one copolyamide-based hot-melt adhesive. Further disclosed is a primer composition containing at least one polymer B selected from saturated polyester resins, epoxy resin-phenolic resin pre-condensates, mixtures of epoxy resins and phenolic resins and blends thereof, at least one cross-linking resin selected from the group consisting of melamine resins, blocked isocyanate resins or blends thereof, at least one catalyst and at least one copolyamide-based hot-melt adhesive.
摘要:
The invention relates to a flexible pipe having a multi-layered structure comprising unbonded layers, comprising an inner lining having the following layer arrangement: a) an innermost layer made of a fluoropolymer molding compound, b) an intermediate layer made of a molding compound on the basis of an olefinic polymer, which is selected from the group consisting of polyethylene, isotactic polypropylene, syndiotactic polypropylene and syndiotactic polystyrene, c) an outer layer made of a polyamide molding compound, wherein the layer made of a polyamide molding compound is particularly efficiently protected against hydrolysis. The pipe is thus particularly suited for offshore applications in oil or gas production.
摘要:
A flexible pipe of multilayer structure with unbonded layers, where the pipe has an interior lining which comprises the following layers: a) at least one layer of which the material is composed of a moulding composition based on a polymer selected from the group of: polyarylene ether ketone, polyphenyl sulphone, polyphenylene sulphide, polyarylene ether ketone/polyphenylene sulphide blend and semiaromatic polyamide, where from 5 to 100 mol % of the dicarboxylic acid content thereof derives from an aromatic dicarboxylic acid having from 8 to 22 carbon atoms, and which has a crystallite melting point Tm of at least 260° C.; b) at least one layer of which the material is composed of a fluoropolymer moulding composition can be operated at temperatures above 130° C. The pipe has particular suitability for offshore applications in the production of oil or of gas.
摘要:
The invention relates to plastic composite moulded bodies which are obtainable by welding in an electromagnetic alternating field and whose welding assembling is carried out with the aid of a plastic material containing nanoscale magnetic oxide particles consisting of aggregated primary particles, wherein said primary particles are formed by magnetic metal-oxide domains whose diameter ranges from 2 to 100 nm in a non-magnetic metal-oxide or metalloid-oxide matrix.