Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1990-04-18
1992-06-09
Lipman, Bernard
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525301, 525308, 525309, C08F 834
Patent
active
051207931
ABSTRACT:
Ether derivatives of polymers of p-hydroxystyrene are made by reacting the polymer through Michael addition with an ethylenically unsaturated compound which contains an electron withdrawing group on the carbon atom alpha to the unsaturation.
REFERENCES:
patent: 4128706 (1978-12-01), Seita et al.
patent: 4886858 (1989-12-01), Katagiri et al.
Hoechst Celanese Corp.
Kalyanaraman P. S.
Lipman Bernard
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