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US 6,673,860 B1Granted
Thermoplastic nanocomposites
AssigneeBASF SE
InventorsStefan Grutke, Christof Mehler
Life of this patent
Estimating the term…
Abstract
The invention relates to thermoplastic nanocomposites comprising a) a thermoplastic (A), in which from 0.1 to 10% by weight of the monomer units present in component (A) bear ionic groups, and b) at least one phyllosilicate (B), uniformly dispersed in component (A). The invention further relates to a process for preparing these nanocomposites, and also to their use.
Claims12
A thermoplastic nanocomposite comprising
- a) a polyamide (A) having a molar mass from 8,000 to 22,000 g/mol in which from 2 to 8% by weight of the monomer units present in component (A) bear anionic groups, and
- b) at least one phyllosilicate (B), uniformly dispersed in component (A).
A thermoplastic nanocomposite comprising
- a) from 30 to 99.99% by weight of a polyamide (A), in which from 2 to 8% by weight of the monomer units present in component (A) bear anionic groups, and
- b) from 0.01 to 20% by weight of at least one phyllosilicate (B), uniformly dispersed in component (A), from 0 to 50% by weight of other fillers (C) and from 0 to 50% by weigh to other additives (D), obtainable by an in-situ method in which the phyllosilicate (B) in suspension or as a solid is mixed with the monomers polymerizable to give the polyamide (A), swelling of the phyllosilicate by the monomers takes place, and then polymerization of the monomers is carried out and the resultant nanocomposites are, optionally compounded with components (C) and/or (D).
Dependencies are inferred from the claim text.