Dithiophosphate composition and utility in rubber

Details Dithiophosphate composition and utility in rubber Dithiophosphate composition and utility in rubber

2011-03-08

2011-03-08

Sullivan, Daniel M (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus containing

C568S014000

Reexamination Certificate

active

07902403

ABSTRACT:
The present invention relates to oligomeric or polymer dithiophosphate di- or poly-sulfides and their utility in rubbers. Another aspect of the invention is a method for making oligomeric or polymeric dithiophosphates by reacting phosphorous pentasulfide with a di- or polyol and a mono alcohol to produce a dithiophosphoric acid, and then oxidizing the dithiophosphoric acid with an oxidizing agent to produce an oligomeric or polymeric dithiophosphate.

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