Polyurethane

Details Polyurethane Polyurethane

1982-02-23

1984-05-08

Nielsen, Earl A.

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...

528 81, 528354, 528357, C08G 1842, C08G 6310

Patent

active

044475918

ABSTRACT:
A polyurethane comprises (a) organic diisocyanate units and (b) polycaprolactone polyol units having a narrow molecular weight distribution in which a ratio of the weight average molecular weight to the number average molecular weight is in the range of from 1.1 to 2.0 and the average molecular weight is 500 to 5,000, the units (a) and (b) being connected linearly through urethane linkages.

REFERENCES:
patent: 2890208 (1959-06-01), Young et al.
patent: 3169945 (1965-02-01), Hostettler et al.
patent: 3284417 (1966-11-01), Hostettler et al.
patent: 3663515 (1972-05-01), Hostettler et al.
patent: 4289873 (1981-09-01), Kubo et al.
patent: 4300565 (1981-11-01), Rosenaft et al.
patent: 4357462 (1982-11-01), Kubo et al.

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