Convenient synthesis of polyamide polyol/urethane diol blends

Details Convenient synthesis of polyamide polyol/urethane diol blends Convenient synthesis of polyamide polyol/urethane diol blends

1987-12-11

1989-04-18

Jacobs, Lewis T.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

525433, 525424, C08G 6944, C08G 7104

Patent

active

048225185

ABSTRACT:
Blends of polyamide polyols and urethane diols are prepared by reacting alkyl (methyl) esters of polybasic acids (preferably dibasic acids) with excess alkanolamine (preferable ethanol amine propanol amine) to form the polyamide polyol of the polybasic acid and alkyl alcohol. The alkyl alcohol is removed and the excess ethanolamine is reacted with ethylene or propylene carbonate to form the urethane diol. This blend of urethane diol and polyamide polyol is useful in various polymer formulations.

REFERENCES:
patent: 3025323 (1962-03-01), Rose et al.
patent: 3458456 (1969-07-01), Levy et al.
patent: 3786031 (1974-01-01), Katayama et al.
patent: 4143159 (1979-03-01), Moller et al.
patent: 4190693 (1980-02-01), Martorano et al.
patent: 4448905 (1984-05-01), Lin et al.
I. S. Lin et al: Lactone-Based Diol Chain Extenders for Polyurethanes, pp. 24-30; Plastics Compounding (Mar./Apr. 1985).

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