High rigidity rubber composition
View Patent ↗Rubber compositions and rubber articles manufactured from such rubber compositions that include the well-known antioxidant poly-2,2,4-trimethyl-1,2-dihydroquinoline (TMQ) having the formula (C 12 H 15 N) n where n=2˜4 as well as a methylene acceptor/donor system reinforcing resin. Such embodiments include a tire component comprising a rubber composition that is based upon a cross-linkable elastomer composition, the cross-linkable rubber composition comprising, per 100 parts by weight of rubber (phr), a highly unsaturated diene elastomer, reinforcing filler, between 0.5 phr and 10 phr of TMQ and the methylene acceptor/methylene donor.
1. A tire component, the tire component comprising a rubber composition that is based upon a cross-linkable rubber composition, the cross-linkable rubber composition comprising, per 100 parts by weight of rubber (phr):
a highly unsaturated diene elastomer;
a reinforcing filler;
between greater than 5 phr and 10 phr of poly-2,2,4-trimethyl-1,2-dihydroquinoline;
a methylene acceptor; and
a methylene donor.
2. The tire component of claim 1 , wherein the cross-linkable rubber composition includes between 2 phr and 30 phr of the methylene acceptor.
3. The tire component of claim 1 , wherein the cross-linkable rubber composition includes between 10 phr and 30 phr of the methylene acceptor.
4. The tire component of claim 1 , wherein the methylene acceptor is selected from phenol, bisphenols, polyphenols, substituted phenols, cresol, t-butylphenol, octylphenol, nonylphenol, xylenol, resorcinol or a novolac resin.
5. The tire component of claim 1 , wherein the methylene acceptor is a novolac resin.
6. The tire component of claim 1 , wherein the cross-linkable rubber composition includes the methylene donor at between 8 wt. % and 80 wt. % of the methylene acceptor.
7. The tire component of claim 1 , wherein the cross-linkable rubber composition includes the methylene donor at between 10 wt. % and 40 wt. % of the methylene acceptor.
8. The tire component of claim 1 , wherein the highly unsaturated diene elastomer is selected from a polybutadiene, a synthetic polyisoprene, a natural rubber, a butadiene-styrene copolymer or combinations thereof.
9. The tire component of claim 1 , wherein the highly unsaturated diene elastomer is natural rubber.
10. The tire component of claim 1 , wherein the reinforcing filler is selected from a carbon black, a silica or combinations thereof.
11. The tire component of claim 1 , wherein the reinforcing filler is carbon black.
12. The tire component of claim 1 , wherein the tire component is a tire tread.
13. The tire component of claim 1 , wherein the tire component is a tire belt skim.
14. The tire component of claim 1 , wherein the tire component is a bead component of the tire.
15. The tire component of claim 1 , wherein the cross-linkable rubber composition includes between 2 phr and 30 phr of the methylene acceptor.
16. The tire component of claim 15 , wherein the methylene acceptor is selected from phenol, bisphenols, polyphenols, substituted phenols, cresol, t-butylphenol, octylphenol, nonylphenol, xylenol, resorcinol or a novolac resin.
17. The tire component of claim 16 , wherein the cross-linkable rubber composition includes the methylene donor at between 10 wt. % and 40 wt. % of the methylene acceptor.
18. The tire component of claim 17 , wherein the methylene acceptor is the novolac resin.