Polyurethane coating compositions prepared from a polymeric diol

Details Polyurethane coating compositions prepared from a polymeric diol Polyurethane coating compositions prepared from a polymeric diol

1982-05-05

1983-10-25

Welsh, Maurice J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524173, 524234, 524317, 524376, 524591, 524726, 524744, 524761, 524769, 524839, C08L 7508

Patent

active

044120222

ABSTRACT:
Polyurethane compositions comprising a polyurethane synthesized by reacting a diol, a specific alicyclic diisocyanate, a specific alicyclic diamine and hydrazine or isophthalic acid dihydrazide in specific proportions and a solvent therefor have good solution stability and, when applied as coating compositions, give coats with good light stability, good surface properties, high softening points and sufficient flexibility at low temperatures.

REFERENCES:
patent: 3900688 (1975-08-01), Thoma et al.
patent: 4212916 (1980-07-01), Tanaka et al.

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