Wet adhesion promoters for emulsion polymers

Details Wet adhesion promoters for emulsion polymers Wet adhesion promoters for emulsion polymers

1982-12-09

1986-10-14

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

544296, 544316, 544318, 548318, 548320, C07D20956, C07D23903, C07D40300, C08F21814

Patent

active

046173641

ABSTRACT:
Monoethylenically unsaturated copolymerizable monomers are disclosed which improve the adhesion of copolymers (especially those produced by aqueous emulsion copolymerization to provide latex paint). These monomers are the reaction product of one equivalent of a monoethylenically unsaturated compound which resists homopolymerization and which carries a single isocyanate-reactive hydrogen atom, such as 2-hydroxypropyl monobutyl maleate, one mole of an organic polyisocyanate, such as 2,4-toluene diisocyanate, and sufficient alkyl alkylene urea carrying a single isocyanate-reactive hydrogen atom on the alkyl group, such as 2-hydroxyethyl ethylene urea, to consume the remaining isocyanate functionality on the polyisocyanate. An improved method of producing these monomers from a mixture of all three reactants is also disclosed.

REFERENCES:
patent: 2980652 (1961-04-01), Melamed et al.
patent: 3356653 (1967-12-01), Sekmakas
patent: 3356654 (1967-12-01), Sekmakas
patent: 4319032 (1982-03-01), Sandri et al.
patent: 4448816 (1984-05-01), Barsa et al.

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