Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1986-07-18
1988-02-09
Sutto, Anton H.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
25240024, 558162, C08K 552, C07F 9145
Patent
active
047242477
ABSTRACT:
An aromatic diphosphite as a antioxidant for organic materials. The aromatic diphosphite has the formula: ##STR1## wherein each R is independently selected from the group consisting of hydrogen and methyl; and R.sup.1, R.sup.2 and R.sup.3 are each independently selected from the group consisting of hydrogen and straight chain and branched alkyl groups having from 1 to about 18 carbon atoms with the proviso that at least two of said R.sup.1, R.sup.2, and R.sup.3 are alkyl groups having at least three carbon atoms.
REFERENCES:
patent: 3484506 (1969-12-01), Baranauckas et al.
patent: 4371646 (1983-02-01), Minagawa et al.
patent: 4456717 (1924-06-01), Eimers et al.
Burton Lester P. J.
Keblys Kestutis A.
Shubkin Ronald L.
Ethyl Corporation
Johnson Donald L.
Odenweller Joseph D.
Sieberth John F.
Sutto Anton H.
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