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

1978-06-27

Schain, Howard E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 59R, C08G 810

Patent

active

040974634

ABSTRACT:
The invention relates to an improved process for preparing very high ortho novolac resins, said process including reacting phenol and formaldehyde in the presence of a divalent electropositive metal oxide, hydroxide or salt and a strong acid or salts of said metals wherein the improvement comprises conducting said reaction under anhydrous conditions with particular divalent electropositive metal ion combinations.

REFERENCES:
patent: 3332911 (1967-07-01), Huck
patent: 3476707 (1969-11-01), Culbertson et al.
patent: 3485797 (1969-12-01), Robins
Partansky, Am. Chem. Soc. Preprints, 1967, pp. 115-124.
Fraser et al., J. of Appl. Chem., 1957, pp. 676-688.

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