Graft copolymers of copolymers of olefins or of olefins and non-

Details Graft copolymers of copolymers of olefins or of olefins and non- Graft copolymers of copolymers of olefins or of olefins and non-

1977-09-28

1979-04-10

Wong, Jr., Harry

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C08L 2308, C08L 2316

Patent

active

041488458

ABSTRACT:
Novel amorphous copolymers of mono-olefins or of mono-olefins and non-conjugated dienes with unsaturated derivatives of imides are disclosed. These copolymers containing from 99.9 to 80% by weight of non-polar units derived from at least two mono-olefins containing 2 to 18 carbon atoms, particularly ethylene and propene or ethylene and butene-1, and possibly one or more non-conjugated dienes, and from 0.1 to 20% units derived from an imide having the formula: ##STR1## wherein: Z is an alkenyl radical containing 2 to 16 carbon atoms, and A designates a saturated or unsaturated divalent hydrocarbon radical which contains 2 to 12 carbon atoms and which may possibly carry amino, halogen or carboxyl groups. Also disclosed are graft amorphous copolymers of amorphous copolymers of olefins or of olefins and non-conjugated dienes substrates with unsaturated derivatives of cyclic imides grafted thereon.
Some of said copolymers and said graft copolymers may be used as polymer additives in lubricating compounds to improve their viscosity index and to disperse the slurry which they may contain.

REFERENCES:
patent: 3766302 (1973-10-01), Holub et al.

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