Multi-layer products, production method thereof and use of same
OwnerLuc Forget, Alexandre Sicheinventors
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Abstract
The invention relates to multi-layer products comprising a polymer substrate (1), a wearing layer (2) which is made from an ionemer-type polymer and an intermediary layer (3) which is made from an olefin polymer containing a metallocene. The invention also relates to a method of producing one such product and to the use of said multilayer products for the production of flooring.
Claims14
A multilayer product comprising:
- a polymer substrate,
- a wear layer made of polymer of an ionomeric type, and,
- between the substrate and the wear layer, an intermediate layer of an olefinic polymer containing from 1 to 40 parts by weight of a metallocene per 100 parts by weight of the olefinic polymer.
The product according to clam 1, wherein the intermediate layer contains from 5 to 30 parts by weight of metallocene per 100 parts by weight of the olefinic polymer.
A process for manufacturing a multilayer product comprising:
- extruding a parison comprising a layer of an olefinic polymer containing a metallocene and an outer layer made of polymer of an ionomeric type wherein the parison is extruded by blow-molding to form a bubble,
- crushing the bubble collected from the blow-molding extrusion to obtain a doubled film,
- separating the doubled film to obtain two separate multilayer films, and
- fixing one of the films onto a substrate.
A multilayer product comprising:
- a substrate;
- a wear layer;
- and
- an intermediate layer disposed between the substrate and the wear layer;
- wherein, the intermediate layer comprises an olefinic polymer containing from 1 to 40 parts by weight of a metallocene per 100 parts by weight of the olefinic polymer.
Dependencies are inferred from the claim text.