Heat curing water soluble homopolyurethanes

Details Heat curing water soluble homopolyurethanes Heat curing water soluble homopolyurethanes

1978-04-07

1979-07-31

Welsh, Maurice J.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

260 292TN, C08G 1880

Patent

active

041630947

ABSTRACT:
A one-step process for synthesizing water soluble self-curing polyurethanes is achieved by co-reacting certain monomers under controlled conditions to form a blocked, water soluble polyurethane which can be subsequently dispersed in water. The polyurethane polymer is substantially free of high molecular weight hydrocarbon chains and essentially comprises all polyurethane units and is adapted to self-cross link upon being subjected to heat. The polymer is particularly suitable for producing polyurethane protective coatings which exhibit substantially increased film hardness, abrasion resistance, as well as other desirable film integrity properties.

REFERENCES:
patent: 3773729 (1973-11-01), Wakimoto et al.

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