Main > POLYMERS > Organic Polymer Stabilization

Product Phosphite. Spiro Bis-Phosphite. USA. G. No. 2

PATENT ASSIGNEE'S COUNTRY USA
UPDATE 07.99
PATENT ASSIGNEE This data is not available for free
PATENT CLAIMS Prepn method
- Heat. bis-(chlorophosphite) (derived from PCl3 + pentaery
tritol reaction) & Phenol-2,4-di-tert-butyl
- Applying vacuum > 10 inches Hg
PATENT PHOTOCOPY Available on request

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