Process for preparing high ortho novolac resins

Details Process for preparing high ortho novolac resins Process for preparing high ortho novolac resins

1977-01-10

1978-09-12

Schain, Howard E.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528140, 528143, 528139, 528165, C08G 810

Patent

active

041137000

ABSTRACT:
The invention relates to an improved process for preparing high ortho novolac resins, said process including reacting phenol and formaldehyde in the presence of a divalent electropositive metal oxide, hydroxide or organic salt wherein the improvement comprises conducting said reaction with said catalysts in combination with a divalent electropositive metal salt selected from the group consisting of sulfonates and fluoroborates or acids selected from the group consisting of sulfonic and fluoroboric or mixtures thereof.

REFERENCES:
patent: 3332911 (1967-07-01), Huck
patent: 3476707 (1969-11-01), Culbertson
J. Appl. Chem., Dec., 1957, Fraser et al., pp. 676-688.
Chem. Abstracts, vol. 73, 1970, 124163g, Bessiere.
Partansky, Am. Chem. Soc. Preprints, 1967, pp. 115-124.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2383501