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US 2013/0158170 A1Published application
Vulcanizable halogenated elastomer compositions
AssigneeDow Global Technologies LLC
InventorsRaymond L. Laakso, JR., Gary R. Marchand, Sandra Watson
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Abstract
The invention provides articles obtained from curing a composition consisting of a polymercapto crosslinking agent, a vulcanization accelerator, an inorganic base, a nitrogen containing chelating agent, wherein the nitrogen containing chelating agent is selected from the group consisting of 1,10-phenanthroline and 2,2-bipyridyl, and polyethylenimine; and a halogenated elastomer; wherein said nitrogen containing chelating agent is soluble in said halogenated elastomer.
Claims4
1:
- An article obtained from curing of a composition consisting of:
- a) a polymercapto crosslinking agent,
- b) a vulcanization accelerator,
- c) an inorganic base,
- d) a nitrogen containing chelating agent, wherein the nitrogen containing chelating agent is selected from the group consisting of 1,10-phenanthroline and 2,2-bipyridyl, and polyethylenimine;
- and
- e) a halogenated elastomer;
- wherein said nitrogen containing chelating agent is soluble in said halogenated elastomer.
5 more elements
2:
- The article of claim 1, wherein the polymercapto crosslinking agent is 2,5-dimercapto-1,3,4-thiadiazole or a derivative thereof.
3:
- The article of claim 1, wherein the polymercapto crosslinking agent is 2-mercapto-1,3,4-thiadiazole-5-thiobenzoate.
4:
- The article of claim 1, wherein the vulcanization accelerator is selected from the group consisting of quaternary ammonium or phosphonium salts, tertiary amines, and dihydropyridine derivatives.