Production of a master batch based on sulphur and carbonaceous nanofillers, the master batch produced, and uses thereof
AssigneeArkema France
InventorsAlexander Korzhenko, Christophe Vincendeau, Thierry Aubert
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Abstract
The invention relates to a method for producing a master batch comprising between 0.01 and 50 wt. % of carbonaceous nanofillers and at least one sulphurated material such as elemental sulphur by melt compounding, and to the master batch thus produced and the different uses thereof. The invention also relates to a solid composition comprising carbonaceous nanofillers dispersed in a sulphurated material.
Claims11
A process for preparing a masterbatch comprising from 0.01% to 50% by weight of carbon-based nanofillers, comprising:
- (a) introducing at least one sulfur-based material, carbon-based nanofillers, and optionally a rheology modifier into a compounding device;
- (b) melting the sulfur-based material;
- (c) kneading the molten sulfur-based material and the carbon-based nanofillers and optionally the rheology modifier to form a mixture, which is in an agglomerated solid physical form;
- and
- (d) recovering the mixture in an agglomerated solid physical form;
- (e) optionally grinding the mixture into a powder,
- characterized in that the sulfur-based material is elemental sulfur, alone or in a mixture with at least one other sulfur-based material.
A solid composition comprising from 1 to 30% by weight of carbon-based nanofillers homogenously dispersed in a mass of particles of sulfur-based material.
Dependencies are inferred from the claim text.