Water-dilutable binders, a process for their production and thei

Details Water-dilutable binders, a process for their production and thei Water-dilutable binders, a process for their production and thei

1988-12-30

1991-01-01

Bleutge, John C.

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

Synthetic resins

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

525424, 525428, 525429, 525386, 524599, C08L 3312

Patent

active

049819216

ABSTRACT:
Water-dilutable binders for water-dilutable lacquers, coating compositions or sealing compounds consist essentially of a mixture of 5 to 40 parts by weight of a crosslinker resin and 60 to 95 parts by weight of a copolymer containing carboxyl groups or acid anhydride groups or both and further containing hydroxyl groups, and wherein the carboxyl or acid anhydride groups have been at least partially converted into carboxylate groups to the degree necessary to provide solubility or dispersibility of the binder in water and said copolymer is obtained by copolymerizing an alpha, beta-unsaturated carboxylic acid, a hydroxyalkyl acrylate or methacrylate, an olefinic monomer, a hydroxy-free acrylate or methacrylate and, optionally other mono-or polyunsaturated monomer, and wherein at least 30% of the hydroxyl groups of the copolymer are modified by esterification with a lactone.

REFERENCES:
patent: 4082816 (1978-04-01), Fisk et al.
patent: 4368320 (1983-01-01), Aldinger et al.
patent: 4504635 (1985-03-01), Weber et al.

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