Modulus modification of water borne polyurethane-ureas

Details Modulus modification of water borne polyurethane-ureas Modulus modification of water borne polyurethane-ureas

1988-05-31

1990-01-23

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...

C08L 7512, C08L 7508

Patent

active

048958948

ABSTRACT:
Disclosed are novel stable aqueous dispersions of ionic polyurethane-polyureas prepared from (A) aqueous dispersions of isocyanate terminated ionic prepolymers and (B) hydrocarbon polyamine extenders. The novelty resides in employing a mixture of a diol and triol in the prepolymer forming step. Also disclosed are the films and coated substrates obtained through the use of said dispersions as coatings.

REFERENCES:
patent: 3870684 (1975-03-01), Witt et al.
patent: 4066591 (1978-01-01), Scriven
patent: 4108814 (1978-08-01), Reiff et al.
patent: 4203883 (1980-05-01), Hangauer
patent: 4408008 (1983-10-01), Markusch
patent: 4501852 (1985-02-01), Markusch et al.
patent: 4644030 (1987-02-01), Loewrigkeit

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