Polyorganosiloxane and method for the preparation thereof

Details Polyorganosiloxane and method for the preparation thereof Polyorganosiloxane and method for the preparation thereof

1998-01-20

1999-09-28

Smith, Jeffrey T.

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

Synthetic resins

From silicon reactant having at least one...

528 38, 556440, 556411, 556446, 556449, C08G 7706, C08G 7714, C08G 7726

Patent

active

059590572

ABSTRACT:
There is disclosed a polyorganosiloxane and a method for the preparation thereof, said polyorganosiloxane having the formula ##STR1## in which R is independently selected from substituted or unsubstituted monovalent hydrocarbon groups, m is an integer having a value of 0 to 500, n is an integer having a value of 0 to 500 and X is selected from a substituted or an unsubstituted monovalent hydrocarbon group or a hindered phenol group which is linked through either a carboxylate ester or an amide moiety, with the proviso that at least one of the X groups is said hindered phenol group.

REFERENCES:
patent: 3579467 (1971-05-01), Brown
patent: 4395527 (1983-07-01), Berger
patent: 4698270 (1987-10-01), Varaprath
patent: 4724248 (1988-02-01), Dexter et al.
patent: 5200284 (1993-04-01), Chen et al.
patent: 5480936 (1996-01-01), Mueller et al.

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