Functionalized ethylene polymers useful for metal coating, and p

Details Functionalized ethylene polymers useful for metal coating, and p Functionalized ethylene polymers useful for metal coating, and p

1991-07-10

1993-03-02

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526321, 5263232, 526329, C08F22204

Patent

active

051910500

ABSTRACT:
Polymers of melt index between 1 and 20 dg/min, which comprise units (A) derived from ethylene, units (B) derived from an ethylenically unsaturated .alpha.,.beta.-dicarboxylic acid anhydride and, where appropriate, units (C) derived from an alkyl acrylate or methacrylate in which the alkyl group contains from 1 to 12 carbon atoms, characterized in that, per 100 moles, they comprise: from 83 to 99.7 moles of units (A), from 0.29 to 3 moles of units (B), from 0 to 13.6 moles of units (C) and, furthermore, from 0.01 to 0.4 moles of units (D) derived from at least one polyol polyacrylate or polymethacrylate.
Their process of preparation consists of copolymerizing a mixture of ethylene, an anhydride of an ethylenically unsaturated .alpha.,.beta.-dicarboxylic acid, at least one polyol polyacrylate or polymethacrylate and, where appropriate, at least one alkyl acrylate or methacrylate, at a temperature of between 140.degree. and 280.degree. C., under a pressure of between 1,000 and 2,500 bars, in the pressure of at least one free radical initiator, and is characterized in that the polyol polyacrylate or polymethacrylate is dissolved in a solvent prior to the copolymerization.

REFERENCES:
patent: 3387022 (1968-06-01), Hagemyer et al.
patent: 3663467 (1972-05-01), Albright et al.
patent: 4472475 (1984-12-01), Decroix
patent: 4617366 (1986-10-01), Gloriod et al.
Hawley's Condensed Chemical Dictionary, 11th Edition, p. 738, (1987).
Kirk Othmer, "Concise Encyclopedia of Chemical Technology" p. 934, (1985).

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