Process for preparing methacrylimide-containing polymers

Details Process for preparing methacrylimide-containing polymers Process for preparing methacrylimide-containing polymers

1986-04-29

1989-03-28

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253299, 5253305, 525379, C08F 832

Patent

active

048165247

ABSTRACT:
Methacrylimide-containing polymers are continuously produced by introducing 10 to 60 wt. % of an inert solvent, 90 to 40 wt. % of methacrylic acid, a methacrylic acid ester or a monomer mixture comprising at least 50 wt. % of methacrylic acid or a methacrylic acid ester, and a radical polymerization initiator and a molecular weight modifier into a polymerization reaction zone, converting at least 80 wt. % of the charged monomer to a polymer at 60.degree.-170.degree. C., adding a compound represented by the formula:

REFERENCES:
patent: 2146209 (1939-02-01), Graves
patent: 3244679 (1966-04-01), Schroder et al.
patent: 3284425 (1966-11-01), Schroder et al.
patent: 4209598 (1980-06-01), Patzchke
patent: 4246374 (1981-01-01), Kopchik
Chemical Abstracts, vol. 100, no. 16, Apr. 1984, p. 39.

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