Reinforced molding material
AssigneeDegussa-Huels Aktiengesellschaft
InventorsPeter Bickert, Ralf Laven, Hans Guenther Wey
Life of this patent
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Abstract
A reinforced molding material having high tensile strength comprising: (a) from 0 to 98 parts by weight of one or more thermoplastics, (b) from 2 to 100 parts by weight of a substantially amorphous polyolefin which has been subjected to free radical grafting with a silane which has at least one olefinic double bond and one to three alkoxy groups bonded directly to the silicon, this grafted polyolefin having a melt viscosity at 190° C. In the range from 100 to 50,000 maps and the parts by weight of (a) and (b) sunning to 100, and (c) from 0.5 to 400 parts by weight of a reinforcing material. The molding material can be used, inter alia, for shaped articles, as hotmelt adhesives or for heavy-duty carpet backing materials.
Claims28
A molding material which comprises:
- (a) from 0 to 98 parts by weight of one or more thermoplastics,
- (b) from 2 to 100 parts by weight of a grafted, substantially amorphous polyolefin of a substantially amorphous polyolefin which has been subjected to free radical grafting with a silane which has at least one olefinic double bond and one to three alkoxy groups bonded directly to the silicon,
- wherein said grafted, substantially amorphous polyolefin has a melt viscosity at 190° C. in the range from 100 to 50,000 mPas and the parts by weight of (a) and (b) summing to 100, and
- (c) from 0.5 to 400 parts by weight of a reinforcing material,
- with the exception of those molding materials in which less than 28 parts by weight of barite are used as reinforcing material.
A heavy-duty carpet backing material comprising
- a grafted, substantially amorphous polyolefin of a substantially amorphous polyolefin which has been subjected to free radical grafting with a silane which has at least one olefinic double bond and one to three alkoxy groups bonded directly to the silicon, wherein said grafted, substantially amorphous polyolefin has a melt viscosity at 190° C. in the range from 100 to 50,000 mPas and
- from 0.5 to 400 parts by weigh of a reinforcing material based on 100 parts by weight of polyolefin,
- with the exception of those carpet-backing materials in which less than 28 parts by weight of barite is used.
A hotmelt adhesive comprising
- a grafted, substantially amorphous polyolefin of a substantially amorphous polyolefin which has been subjected to free radical grafting with a silane which has at least one olefinic double bond and one to three alkoxy groups bonded directly to the silicon, wherein said grafted, substantially amorphous polyolefin has a melt viscosity at 190° C. in the range from 100 to 50,000 mPas and
- from 0.5 to 400 parts by weight of a reinforcing material based on 100 parts by weight of polyolefin,
- with the exception of those carpet-backing materials in which less than 28 parts by weight of barite is used.
A masterbatch for the preparation of reinforced thermoplastic comprising
- a grafted, substantially amorphous polyolefin of a substantially amorphous polyolefin which has been subjected to free radical grafting with a silane which has at least one olefinic double bond and one to three alkoxy groups bonded directly to the silicon, wherein said grafted, substantially amorphous polyolefin has a melt viscosity at 190° C. in the range from 100 to 50,000 mPas and
- from 0.5 to 400 parts by weight of a reinforcing material based on 100 parts by weight of polyolefin,
- with the exception of those carpet-backing materials in which less than 28 parts by weight of barite is used.
Dependencies are inferred from the claim text.