Plastic hollow body made of high density polyolefins produced by means of a fluoro modified chrome catalyst
AssigneeBasell Polyolefine GmbH
InventorsShahram Mihan, Wolfganf Rohde, lIka Beuermann, Bernhard Springholz
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Abstract
A hollow plastic article is described, with at least one opening and with a structure which has one or more layers, the hollow plastic article comprising at least one layer made from a polyolefin which was prepared using a fluorine-modified chromium catalyst. The use of hollow plastic articles of the invention as plastic fuel containers, gasoline canisters, plastic tanks, or plastic bottles or the like is also described.
Claims10
A hollow plastic article with at least one opening,
- wherein the hollow plastic article, whose structure has one or more layers, has at least one layer made from a polyolefin having a density of from 0.943 to 0.955. g/cm2 [sic] and a melt flow rate MFR (190° C./21.6 kg) of from 2 to 8 g/10 minutes, prepared using a fluorine-modified chromium catalyst.
A hollow plastic article as claimed in any of the preceding claims,
- wherein the polyolefin comprises a copolymer of ethylene, in which an, α-olefin having from 3 to 8 carbon atoms is used as comonomer.
A hollow plastic article as claimed in any of the preceding claims,
- wherein the density of the polyolefin used is from 0.945 to 0.953 g/cm2 [sic].
A hollow plastic article as claimed in any of the preceding claims,
- wherein the polyolefin has a melt flow rate MFR (190° C./21.6 kg) of from 3 to 7 g/10 minutes.
A hollow plastic article as claimed in any of the preceding claims,
- which has a permeation-reducing coating.
A hollow plastic article as claimed in any of the preceding claims,
- wherein the structure of the hollow plastic article has more than one layer and comprises, from the inside to the outside, a polyolefin layer, an adhesion promoter layer, a barrier polymer layer, an adhesion promoter layer, a regrind layer, and a polyolefin layer.
The use of a hollow plastic article as claimed in any of the preceding claims as a plastic fuel tank in a motor vehicle.
The use of a hollow plastic article as claimed in any of the preceding claims as a fuel canister, fuel tank for storage and transport of fuels, diesel, heating oil or the like, a transport container on utility vehicles, such as those for agricultural sprays, solvent containers, plastic bottles, or the like.
Dependencies are inferred from the claim text.