Moisture-curing, polyurethane hot-melt compositions

Details Moisture-curing, polyurethane hot-melt compositions Moisture-curing, polyurethane hot-melt compositions

1989-10-17

1992-12-22

Carrillo, Ana L.

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

Synthetic resins

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

525131, 525403, 525404, 525408, 525409, 525440, 525454, 525455, 525458, 525460, 528 60, 528 66, 528 67, C08G 1810, C08G 1870, C08L 7504, C08L 7508

Patent

active

051735385

ABSTRACT:
A quick-setting, moisture-curing hot-melt polyurethane composition having a first polyether-based polyurethane prepolymer having a Tg above room temperature and a second polyurethane prepolymer with a Tg below room temperature, the first prepolymer being prepared from a low molecular weight polyether; preferably the second prepolymer is also polyether based and prepared from a high molecular weight polyether.

REFERENCES:
patent: 3012987 (1961-12-01), Ansul
patent: 3094495 (1963-06-01), Gemeinhardt
patent: 3271352 (1966-09-01), Weinberg
patent: 3514427 (1970-05-01), Owens
patent: 4552934 (1985-11-01), Rabito et al.
patent: 4929667 (1990-05-01), Ban et al.
patent: 4957959 (1990-09-01), Matsumoto et al.

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