Polyester polyols liquid at room temperature and their preparati

Details Polyester polyols liquid at room temperature and their preparati Polyester polyols liquid at room temperature and their preparati

1987-12-01

1988-10-18

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521173, 528 83, 528272, 528302, 560190, 560202, C08G 1814

Patent

active

047788305

ABSTRACT:
Disclosed are polyester polyols liquid at 25.degree. C., having an average functionality of from 2 to 3, a hydroxyl number of from 25 to 400, an acid number smaller than 10 and a viscosity at 25.degree. C. of from 200 to 10,000 mPas, which contain in bonded form units having at least one of the structures

REFERENCES:
patent: 4052358 (1977-10-01), Wada et al.
patent: 4362825 (1982-12-01), Grabhoefer et al.

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