SPÉCIALISTE EN CALORIFUGEAGE DE LA MÉCANIQUE COMMERCIAL ET INDUSTRIEL. Isolation Lapointe est une équipe de professionnels et de. TERMIUM® is the Government of Canada’s terminology and linguistic data bank. DES GENS D’EXPÉRIENCE EN ISOLATION DE LA TUYAUTERIE ET ÉQUIPEMENTS CONNEXES. ISOTECH A ÉTÉ FONDÉE EN ; SES DEUX.
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Text of the Claims and Abstract are posted:. The provision of the chain-scission on the microspheres enables the microspheres to be compounded substantially without breakage with low Melt Flow Tuyautedie polyolefins, with the result that the resultant composite material can be employed in rigorous application areas, for examples as an extruded flowline insulation.
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Claims are shown in the official language in which they were submitted.
A method for the preparation of a composite material comprising a polyolefin selected from polypropylene and tuyautefie polybutylene, and a filler comprising hollow microspheres, the method comprising: A method as claimed in claim 1, wherein the microspheres are made of an inorganic glass. A method as claimed in any claim 1 or 2, wherein the chain-scission agent is an organic peroxide.
A method as claimed in claim 3 wherein the organic peroxide is present in an amount of 0. A method as claimed in any preceding claim, wherein the microspheres to be incorporated in the polyolefin are treated with a chain-scission agent by – preparing a sample of microspheres by treatment thereof with a chain-scission agent, such that the concentration of chain-scission agent on the microspheres is higher than is required for compounding, and – diluting the treated sample or a portion thereof with microspheres which have not been treated with the chain-scission agent.
A method as claimed in any preceding claim, comprising the step of additionally treating at least some of the microspheres to be incorporated into the polyolefin with an azidosulphonylbenzoic acid or an unsaturated organic acid or anhydride.
A method as claimed in any preceding claim, wherein the composite material produced has a Melt Flow Index in the range 0. A method of forming a flowline having an insulating layer which method comprises the step of extruding composite material, prepared by a method as claimed in any one of claims 1 to 7 onto a steel pipe.
A method of forming a shaped article, comprising: To view images, click a link in the Document Description column.
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TNG Isolation | Isolation maison neuve / Ignifuge cimentaire / Polyuréthane
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