Curing agent which is suitable for EPDM-type rubbers

Details Curing agent which is suitable for EPDM-type rubbers Curing agent which is suitable for EPDM-type rubbers

2004-10-07

2011-11-22

Jagannathan, Vasu (Department: 1764)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S331900, C525S332500, C525S332600, C525S333300, C525S333500, C525S374000, C525S382000, C252S182110, C252S182130, C252S182170, C568S021000, C568S025000

Reexamination Certificate

active

08063155

ABSTRACT:
The invention relates to a sulphur donor curing agent comprising a combination of between 10 and 90 wt % of a mixture of polysulphides of poly(alkyl phenol) and between 90 and 10 wt. % a compound of the formula R′NHCONHR″ were R′ and R″ are the same or different and are hydrogen oa an alkyl or aryl radical having 1 to 20 carbon atoms and methods of curing an EPDM-type rubber elastomer with the composition which presents no risk of the formation of nitrosamines.

REFERENCES:
patent: 2422156 (1947-06-01), Wolf et al.
patent: 3968062 (1976-07-01), Ecsedy
patent: 5096978 (1992-03-01), Coran
patent: 5326828 (1994-07-01), Rowland et al.
patent: 247016 (1987-06-01), None
Graf, H.-J.: “Praxisrelevante Strategien zur Vermeidung gefahrlicher N-Nitrosamine bei der Vulkanisation von Elastomeren” Kautschuk Gummi Kunststoffe, vol. 46, No. 6, 1993, pp. 486-491, XP0001181230 le document en entier.
Laffitte, J. A.; Lugez, P.: Nouvel agent de couplage silice-SBR Caoutchoucs and Plastiques, vol. 816, Oct. 1, 2003, pp. 48-53, XP001181167 le document en entier.

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