Nitrile butadiene rubber (NBR)-polyester hybrid conductive coating
AssigneeWolverine Advanced Materials, LLC
InventorsBryan Grace, Abed Hashemi, Drew Zawacki
Life of this patent
Estimating the term…
Abstract
A conductive rubber composite coating can be provided from both an aqueous or non-aqueous formulation which includes a mixture, preferably a homogenous mixture, of a nitrile butadiene rubber (NBR), a polyester and at least one conductive filler. In some embodiments, and after coating and vulcanization the formulation to a substrate, a conductive rubber coated article of manufacture (e.g., rubber coated material gasket) is provided that has conductivity and electromagnetic interference shielding suitable for use in EV applications.
Claims17
A formulation comprising:
- a mixture of from about 20 weight percent to about 90 weight percent of nitrile butadiene rubber, from about 5 weight percent to about 50 weight percent of a polyester, and from about 5 weight percent to about 40 weight percent of at least one conductive filler,
- wherein the at least one conductive filler comprises a combination, based on weight percent of total conductive filler content in the formulation, of from about 5 weight percent to about 90 weight percent of carbon black, from about 10 weight percent to about 50 weight percent of graphene, from about 5 weight percent to about 20 weight percent of a carbon nanotube, and from about 5 weight percent to about 20 weight percent of a conductive metal nanoparticle.
A conductive rubber composite coating comprising:
- an elastomeric polymer blend of a nitrile butadiene rubber and a polyester, wherein the elastomeric polymer blend has at least one conductive filler contained therein, and a conductivity of about 10E-4 Siemens/centimeter or greater, and
- wherein the at least one conductive filler comprises a combination, based on weight percent of total conductive filler content in the formulation, of from about 5 weight percent to about 90 weight percent of carbon black, from about 10 weight percent to about 50 weight percent of graphene, from about 5 weight percent to about 20 weight percent of a carbon nanotube, and from about 5 weight percent to about 20 weight percent of a conductive metal nanoparticle.
Dependencies are inferred from the claim text.