Hydroxymethyl-substituted polyfunctional phenols

Details Hydroxymethyl-substituted polyfunctional phenols Hydroxymethyl-substituted polyfunctional phenols

2005-06-14

2005-06-14

Shippen, Michael L. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S721000, C568S723000, C568S726000, C568S727000

Reexamination Certificate

active

06906226

ABSTRACT:
Hydroxymethyl-substituted polyfunctional phenols, expressed by the following structure:General structure (I)(wherein X represents: bivalent group (a) expressed by the following structure:General structure (II)(wherein R1, R2, R3and R4each independently represent a hydrogen atom or an alkyl group with a carbon atom number of 1 through 4);quadrivalent group (b) expressed by the following structure:General structure (III)(wherein R5and R6each independently represent a hydrogen atom or an alkyl group with a carbon atom number of 1 through 4);or bivalent group (c) expressed by the following structure:General structure (IV)(wherein R7and R8each independently represent a hydrogen atom or a monofluoromethyl, difluoromethyl or trifluoromethyl group; however, R7and R8cannot be both hydrogen atoms);wherein n takes 2 when X is bivalent group (a), takes 4 when X is quadrivalent group (b), or takes 2 when X is bivalent group (c)).

REFERENCES:
patent: 5488182 (1996-01-01), Kobayashi et al.
patent: 2004/0023139 (2004-02-01), Yoshimura et al.
S. Seito, et al., “Condensation Reactions of Formaldehyde with Phenols. VI. Isomeric Tetramethyloldihydroxydiphenylmethanes,” vol. 49, No. 10, May 25, 1955 Chem. Abstr. 49:6889.

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