Alcohol-modified polyepoxides, their preparation and their use i

Details Alcohol-modified polyepoxides, their preparation and their use i Alcohol-modified polyepoxides, their preparation and their use i

1985-03-14

1987-04-28

Nielsen, Earl

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523415, 523416, 525415, 525408, 528 99, 528100, 528110, 528354, 528361, 528365, 156330, C08G 5942, C08G 5962

Patent

active

046615415

ABSTRACT:
This application discloses a synthetic resin based on alcohol-modified polyepoxides. The synthetic resin can be prepared by reacting a diepoxide, or a mixture of diepoxides, having an epoxide equivalent weight of less than about 500, with compounds with a hydroxyl group, which is reactive towards epoxide groups, in a molar ratio from about 2:1 to about 7:6 at temperatures from about 100.degree. C. to about 180.degree. C. in an organic solvent free of hydroxyl groups. The synthetic resin has terminal epoxide groups and a mean molecular weight from about 400 to about 5000.

REFERENCES:
patent: 2700030 (1955-01-01), Widmer et al.
patent: 2928810 (1960-03-01), Belanger
patent: 2947712 (1960-08-01), Belanger et al.
patent: 3374286 (1968-03-01), Hicks
patent: 3424817 (1969-01-01), Hicks
patent: 4495335 (1985-01-01), Geist et al.

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