Use of N,N'- and N,N',N'-substituted silyl ureas as antidegradat

Details Use of N,N'- and N,N',N'-substituted silyl ureas as antidegradat Use of N,N'- and N,N',N'-substituted silyl ureas as antidegradat

1990-11-19

1991-06-18

Hoke, Veronica P.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524100, 524188, 524492, 524495, 523169, 523213, C08K 554

Patent

active

050250477

ABSTRACT:
The invention relates to N,N'- and N,N',N'-substituted silyl ureas of the general formula ##STR1## and to their use as antidegradation agents which can not be washed out in polymers, especially rubber.

REFERENCES:
patent: 3576033 (1971-04-01), Tesoro et al.
patent: 3595830 (1971-07-01), Owen et al.
patent: 3647742 (1972-03-01), Stevens
patent: 3808172 (1974-04-01), Albarino et al.
patent: 3823114 (1974-07-01), Albarino et al.
patent: 3895043 (1975-07-01), Wagner et al.
patent: 4039503 (1977-08-01), Itoh
patent: 4046794 (1977-09-01), Pepe et al.
patent: 4141751 (1979-02-01), Moreland
patent: 4151154 (1979-04-01), Berger
patent: 4626560 (1986-12-01), Marsden et al.

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