Hydrogenated nitrile butadiene rubber
View Patent ↗The present invention relates to a composition containing a hydrogenated nitrile-butadiene rubber (HNBR), a peroxide crosslinking system and a resorcinol-formaldehyde resin, to a process for the preparation of the composition, to the use of the composition as an adhesion promoter, and also to a multilayer product containing the composition according to the present invention.
1. A composition consisting essentially of
a) from 0.1 to 98.4 wt. % of a HNBR rubber having a nitrile group content of from 10 to 50 wt. %
b) from 0.1 to 20 wt. % of a peroxide crosslinking system and
c) from 0.5 to 40 wt. % of a resorcinol-formaldehyde resin,
d) optionally, filler and additives and from 0 to 40 wt. % of metal acrylates and/or methacrylates.
2. The composition according to claim 1 , containing from 20 to 70 wt. % of a HNBR rubber.
3. The composition according to claim 1 , containing from 30 to 60 wt. % of a HNBR rubber.
4. The composition according to claim 1 , containing from 30 to 15 wt. % of a peroxide crosslinking system.
5. The composition according to claim 1 , containing from 3 to 15 wt. % of a resorcinol-formaldehyde resin.
6. Process for the preparation of the composition according claim 1 , comprising mixing components a), b) and c).
7. Composite prepared by vulcanizing the composition according to claim 1 and a carrier material.
8. The composite according to claim 7 , wherein the composite is selected from the group consisting of toothed belts, V-belts, conveyor belts, coated fabrics, hoses, bags, tires, pneumatic springs and rubber muscles.
9. Process for the production of a composite comprising vulcanizing the the composition according to claim 1 with a carrier material.
10. The process according to claim 9 , wherein the carrier material is selected from the group consisting of polyamide, polyester, polyaramid, rayon and glass.