Monolithic belts containing ethylene-alpha-olefin copolymers
OwnerJurg Vogt, Willi Toggenburgerinventors
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Abstract
Monolithic belts (i.e. without woven fabric insert), in particular monolithic conveyer belts and drive belts, which consist of a thermoplastic material, containing a copolymer with a ratio of weight average molecular weight Mw to number average molecular weight Mn of 5.0:1 to 1.5:1, which show creep resistance while at the same time having significantly reduced material costs. The copolymer can in particular be produced by means of a metallocene “single-site” catalyst.
Claims17
Monolithic belt, characterised in that it consists of a thermoplastic material, comprising at least 70 percent by weight of a copolymer of ethylene and a α-olefin, and that the copolymer has a ratio of weight average molecular weight Mw to number average molecular weight Mn of 5.0:1 to 1.5:1.
Use of a copolymer of ethylene and a α-olefin with a ratio of weight average molecular weight Mw to number average molecular weight Mn of 5.0:1 to 1.5:1, for the production of a monolithic belt.
Dependencies are inferred from the claim text.