Cationic vinyl ester based polymer latices, their preparation an

Details Cationic vinyl ester based polymer latices, their preparation an Cationic vinyl ester based polymer latices, their preparation an

1983-10-05

1984-12-18

Ivy, C. Warren

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524815, 5262922, 52629295, 526220, 1621646, 428265, C08L 3324, C08L 3314

Patent

active

044891920

ABSTRACT:
High solids, low viscosity, alkaline-curable, thermosetting cationic vinyl ester based polymer latices, characterized by the high molecular weight of the polymer therein, are prepared by polymerizing at least 5% of selected vinyl esters (up to C.sub.6), 0.5-10% of a self-crosslinking cationic quaternary ammonium monomer, and optionally a vinyl polymerizable monomer such as butyl acrylate, ethylene, acrylamide, diallyl maleate, and/or 2-hydroxyethyl acrylate. The polymerization is carried out in the presence of water, a watersoluble cationic azo initiator, a water-soluble amino thiol salt chain transfer agent, and a cationic and/or nonionic surfactant. The latices are useful as formaldehyde-free binders for polyester nonwovens.

REFERENCES:
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patent: 3287305 (1966-11-01), Maeder
patent: 3678098 (1972-07-01), Lewis et al.
patent: 3702799 (1972-11-01), Lewis et al.
patent: 4165419 (1979-08-01), Suzuki
patent: 4200562 (1980-04-01), Yoshioka
patent: 4226748 (1980-10-01), Matsunaga
patent: 4420583 (1983-12-01), Hutton

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