Phenolic resin compositions

Details Phenolic resin compositions Phenolic resin compositions

1989-12-15

1991-09-24

Kight, III, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

528100, 528126, 528128, 528137, 528140, 528155, 525508, B22C 122, C08L 6110, C08G 828, C08G 1412

Patent

active

050514547

ABSTRACT:
The present invention relates to phenolic resin compositions and methods for making cured phenolic resin compositions. The phenolic resin compositions of this invention comprise an esterified phenolic compound and a base and optionally an unesterified phenolic resole resin. The composition cures in the presence of water or other polar solvent. The esterified phenolic compound contains at least one phenolic hydroxyl group or an esterified phenolic hydroxyl group and further contains at least one esterified methylol group positioned ortho or para to a phenolic hydroxyl group or an esterified phenolic group.
The compounds find particular use in bonding refractory materials, such as sand, in the production of foundry moulds and cores and in treating subterranean formations. These composition have the advantage that cure can be obtained at room temperature without the use of strong alkali. The use of this system also prevents the release of alcohols during the saponification stage of the ester cure process.

REFERENCES:
patent: Re32812 (1988-12-01), Lemon et al.
patent: Re33720 (1988-07-01), Lemon et al.
patent: 2007968 (1935-07-01), Graves
patent: 2091965 (1937-09-01), Cherry
patent: 2124285 (1938-07-01), Bucherer
patent: 2134388 (1938-10-01), Cherry
patent: 2541471 (1951-02-01), Hull et al.
patent: 2544365 (1951-03-01), Sorenson
patent: 3259469 (1966-07-01), Painter et al.
patent: 3558560 (1971-01-01), Huck et al.
patent: 3905934 (1975-09-01), Gardikes
patent: 4395521 (1983-07-01), Chow et al.
patent: 4426467 (1984-01-01), Quist et al.
patent: 4468359 (1984-08-01), Lemon et al.
patent: 4474904 (1984-10-01), Lemon et al.
patent: 4501836 (1985-02-01), Makamura et al.
"Condensation of Phenols with Amines and Formaldehyde", Bruson and MacMullen; Journal of the American Chemical Society, 5/41, pp. 270-272.
"Proton Magnetic Resonance Study on the Structure of Phenol-Formaldehyde Resins", Woodbrey, Higginbottom and Culbertson; Journal of Polymer Science, Part A, vol. 3, pp. 1079-1106 (1965).

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