Process for producing epoxy resins

Details Process for producing epoxy resins Process for producing epoxy resins

1983-02-28

1984-03-20

Nielsen, Earl A.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528104, 528 99, 528109, C08G 5962, C08G 5968

Patent

active

044382545

ABSTRACT:
An improved process for reacting vicinal epoxides with phenols or thiophenols is described. This process is conducted at essentially anhydrous conditions and temperatures less than 175.degree. C. The resulting resins are generally more linear and less colored than advanced resins produced via prior art processes. Also the phosphonium catalyst remains active to promote subsequent advancement or curing reactions. The catalyst can be deactivated in a separate step to produce a resin of exceptional purity.

REFERENCES:
patent: 3477990 (1969-11-01), Dante et al.
patent: 3547881 (1970-12-01), Mueller et al.
patent: 3547885 (1970-12-01), Dante et al.
patent: 3694407 (1972-09-01), Krikorian
patent: 3738862 (1973-06-01), Klarquist et al.
patent: 3948855 (1976-04-01), Perry
patent: 4048141 (1977-09-01), Doorakian et al.
patent: 4171420 (1979-10-01), Doorakian et al.
patent: 4352918 (1982-10-01), Whiteside et al.
patent: 4389520 (1983-06-01), Gannon

Affiliated with

Also associated with

Rating

Process for producing epoxy resins 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 producing epoxy resins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing epoxy resins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1605320