Compositions containing free radical capping additives and uses therefor
First Claim
Patent Images
1. A vulcanizable composition comprising:
- 100 parts by weight of an elastomer;
from about 5 to about 100 parts by weight of at least one reinforcing filler, per 100 parts of said elastomer, selected from the group consisting of carbon black, silica and combinations thereof, from about 0.1 to about 10 parts by weight of a free radical-capping additive, per 100 parts of the elastomer wherein said free radical-capping additive is selected from the group consisting of galvanoxyl, diphenyl picrylhydrazyl (DPPH), hexaphenyl ethane, 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) and compatible, free radical capping derivatives thereof; and
from about 0.2 to about 5 parts by weight of a cure agent, per 100 parts of the elastomer.
1 Assignment
0 Petitions
Accused Products
Abstract
A vulcanizable filler-reinforced, elastomer-containing composition comprises 100 parts by weight of an elastomer; from about 5 to about 100 parts by weight of a reinforcing filler, per 100 parts of elastomer; from about 0.1 to about 10 parts by weight of a free radical capping additive; and from about 0.2 to about 5 parts by weight of a cure agent, per 100 parts of elastomer. A process for the preparation of a vulcanized composition comprising the composition and a pneumatic tire comprising a tread stock manufactured from the composition are also provided.
16 Citations
25 Claims
-
1. A vulcanizable composition comprising:
-
100 parts by weight of an elastomer;
from about 5 to about 100 parts by weight of at least one reinforcing filler, per 100 parts of said elastomer, selected from the group consisting of carbon black, silica and combinations thereof, from about 0.1 to about 10 parts by weight of a free radical-capping additive, per 100 parts of the elastomer wherein said free radical-capping additive is selected from the group consisting of galvanoxyl, diphenyl picrylhydrazyl (DPPH), hexaphenyl ethane, 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) and compatible, free radical capping derivatives thereof; and
from about 0.2 to about 5 parts by weight of a cure agent, per 100 parts of the elastomer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 25)
-
-
15. A process for the preparation of a vulcanized composition comprising:
-
mixing 100 parts by weight of an elastomer with from about 5 to about 100 parts by weight of a reinforcing filler, per 100 parts of said elastomer, selected from the group consisting of carbon black, silica and combinations thereof;
from about 0.1 to about 10 parts by weight of a free radical-capping additive, per 100 parts of the elastomer wherein said free radical additive is aselected from the group consisting of galvanoxyl, diphenyl picrylhydrazyl (DPPH), hexaphenyl ethane, 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) and compatible free radical capping derivatives thereof; and
from about 0.2 to about 5 parts by weight of a cure agent, per 100 parts of said elastomer. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
-
Specification