COMPOSITE PART

摘要

The invention relates to a composite which is produced by means of 2-component processing methods, preferably 2-component injection moulding (2K injection moulding), from at least one part composed of at least one polyalkenamer-additized polyamide moulding composition and at least one part composed of at least one elastomer obtainable from rubber that is to be vulcanized or crosslinked with elemental sulphur, or is composed of these components after processing thereof, without using an adhesion promoter, wherein the individual parts of the composite are macroscopic mouldings but not, for example, dispersed particles in a polymer/elastomer blend or polyamide fibres in an elastomer matrix, such blends therefore not being composites in the sense of the invention, and to a method for producing such composites, to the use of polyalkenamer for improving the composite adhesion of polyamide-based mouldings with an elastomer component obtainable from rubber that is to be vulcanized or crosslinked with elemental sulphur, and to the use of polyalkenamer for reducing the melting point or softening point of polyamide.

主权项

1. A composite composed of directly adhering parts, wherein at least one part comprises at least one polyamide moulding composition and at least one other comprises at least one elastomer, without any adhesion promoter between the parts, wherein:
the polyamide moulding composition contains at least 30% by weight of a mixture of a) 60 to 99.9 parts by weight of polyamide and b) 0.1 to 40 parts by weight of polyalkenamer,where the sum total of the parts by weight of a) and b) is 100, where
the elastomer part comprises a rubber which is cross-linkable or vulcanizable with elemental sulphur as crosslinking agent, and the polyalkenamer is at least one selected from a group that includes polybutadiene, polyisoprene, polyoctenamer (polyoctenylene), polynorbornene (poly-1,3-cyclopentylene-vinylene) and polydicyclopentadiene.