Invention Grant
- Patent Title: Dithiophosphate composition and utility in rubber
- Patent Title (中): 二硫代磷酸盐组成和在橡胶中的应用
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Application No.: US12023396Application Date: 2008-01-31
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Publication No.: US07902403B2Publication Date: 2011-03-08
- Inventor: Thomas J. Karol , Ronald J. Tepper
- Applicant: Thomas J. Karol , Ronald J. Tepper
- Applicant Address: US CT Norwalk
- Assignee: R.T. Vanderbilt Company, Inc.
- Current Assignee: R.T. Vanderbilt Company, Inc.
- Current Assignee Address: US CT Norwalk
- Agency: Norris McLaughlin & Marcus, P.A.
- Main IPC: C07F9/02
- IPC: C07F9/02
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.
Public/Granted literature
- US20080183018A1 DITHIOPHOSPHATE COMPOSITION AND UTILITY IN RUBBER Public/Granted day:2008-07-31
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