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US 5,314,957 AGranted
Molded article of crosslinked polyolefin and method for preparing it
AssigneeMitsui Toatsu Chemicals, Inc.
InventorsTadashi Asanuma, Kazuhiko Yamamoto
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AssigneeMitsui Toatsu Chemicals, Inc.
InventorsTadashi Asanuma, Kazuhiko Yamamoto
Estimating the term…
A method for preparing a molded article of a crosslinked polyolefin which comprises the steps of bringing a composition comprising a copolymer of an alkenylsilane and an olefin and a compound having at least two unsaturated bonds into contact with a catalyst selected from the group consisting of salts of rhodium, alkoxy compounds and metallocene compounds of metals in the group IVa of the periodic table, combinations of the metallocene compounds and organic metal compounds, and then molding the composition, or carrying out the contact simultaneously with the molding, or molding the composition, and then bringing the molded article into contact with the catalyst, and if necessary, further heating the molded article to accelerate a crosslinking reaction. The molded article of the crosslinked polyolefin obtained by the method of the present invention has a high crosslinking density and is excellent in mechanical properties, solvent resistance and heat resistance.
A method for preparing a molded article of a crosslinked polyolefin which comprises the steps of bringing a composition comprising a copolymer of an alkenysilane and an olefin and a compound having at least two unsaturated bonds selected from the group consisting of an aromatic vinyl compound, a polymer which contains reactive unsaturated bonds, and an ether, an ester, an amine, an amide, a carboxylic acid, an alcohol an alkoxysilicon and a silicone which has two or more unsaturated bonds into contact with a catalyst selected from the group consisting of salts of rhodium, alkoxy compounds and metallocene compounds of metals in the group IVa of the periodic table, combinations of the metallocene compounds and organic aluminum compounds, and then molding the composition, or carrying out the contact simultaneously with the molding, or molding the composition, and then bringing the molded article into contact with the catalyst, and if necessary, further heating the molded article to accelerate a crosslinking reaction.
Dependencies are inferred from the claim text.