Process for the continuous preparation of polyglycidyl ethers of

Details Process for the continuous preparation of polyglycidyl ethers of Process for the continuous preparation of polyglycidyl ethers of

1975-05-30

1977-04-12

Milestone, Norma S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30128

Patent

active

040175235

ABSTRACT:
Liquid epoxy resins are produced by contacting a dihydroxy phenol with an excess of epihalohydrin and an aqueous solution of an alkali metal hydroxide in a molar ratio of hydroxide to phenol not exceeding 2:1, recovering from the reaction products an epoxy resin having a content of hydrolyzable chlorine of from 1 to 6% by weight, contacting a solution of the resin in a hydrocarbon with an aqueous solution of an alkali metal hydroxide while maintaining an atomic ratio of alkali metal to hydrolyzable chlorine contained in the resin of from 1:1 to 1.17:1 and recovering from the reaction products a liquid epoxy resin having a content of hydrolyzable chlorine less than 0.02% by weight.
These epoxy resins of high purity are particularly useful as varnishes or coatings.

REFERENCES:
patent: 2841595 (1958-07-01), Pezzaglia
patent: 3069434 (1962-12-01), Spence et al.
Chemical Abstracts, vol. 60, (1964) 5704g.

Affiliated with

Also associated with

Rating

Process for the continuous preparation of polyglycidyl ethers of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the continuous preparation of polyglycidyl ethers of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the continuous preparation of polyglycidyl ethers of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1281210