Patent · US Active

Polyamide 12 composition containing carbon nanotubes

US9524807B2 · kind B2 · utility

0Cited by

14References

14Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

Sylvia Anita Hermasch · Marl, DE
Roland Wursche · Schneverdingen, DE
Harald Haeger · Thedinghausen, DE
Petra Poetschke · Dresden, DE
Beate Krause · Overath, DE
Robert Socher · Mannheim, DE

Key dates

Filing date	Oct 31, 2011
Grant date	Dec 20, 2016
Priority date	—
Expiry date	Dec 14, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/3445
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A polyamide composition contains the following components: (a) at least 40 parts by weight PA12; (b) 0.1-15 parts by weight of at least one salt with a non-metallic cation; (c) 0.1-25% by weight of at least one dispersant based on esters or amides; (d) a quantity of carbon nanotubes that produces in the molding compound a specific surface resistance according to IEC standard 60167 of maximum 10−1-1010Ω; (e) 0-5 parts by weight of at least one metal salt; and optionally (f) conventional auxiliary substances and additives, the sum of the parts by weight of components (a) to (f) amounting to 100. The polyamide composition can be used for manufacturing moldings with improved electrical conductivity and improved surface quality.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.