US PATENT SUBCLASS 525 / 390
.~.~ Solid polymer derived solely from phenolic reactants wherein none of the reactants contains a plurality of methylol groups or derivatives thereof

Current as of: June, 1999
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525 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50  DF  .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32}
390.~.~ Solid polymer derived solely from phenolic reactants wherein none of the reactants contains a plurality of methylol groups or derivatives thereof {6}
391  DF  .~.~.~> Mixed with ethylenically unsaturated reactant or polymer derived therefrom {1}
393  DF  .~.~.~> Mixed with silicon-containing reactant or polymer derived therefrom
394  DF  .~.~.~> Mixed with -O-C(=O)-O-, hal-C(=O)-O-, or hal-C(=O)-hal containing reactant or polymer derived therefrom
395  DF  .~.~.~> Mixed with -N=C=X-containing reactant or polymer therefrom (X is chalcogen)
396  DF  .~.~.~> Mixed with 1,2-epoxy containing reactant or polymer therefrom, or wherein polymer contains at least one 1,2-epoxy group
397  DF  .~.~.~> Mixed with carboxylic acid or derivative reactant or polymer derived therefrom

DEFINITION

Classification: 525/390

Solid polymer derived solely from phenolic reactants wherein none of the reactants contains a plurality of methylol groups or derivatives thereof:

(under subclass 50) Subject matter involving processes of mixing a solid polymer derived from phenolics as sole reactants wherein none of the reactants forming the solid polymer contains a plurality of methylol groups or is a derivative thereof with an additional solid polymer, with specified polymer-forming ingredients, with a specified intermediate condensation product, chemical treating agent, or with an elthylenic agent; or processes of forming or reacting, or the resultant products of any of the above mixtures.

(1) Note. This subclass includes solid polymers prepared from a multiplicity of phenolic reactants.

(2) Note. The term "phenolic reactant" is limited to phenols, phenol ether, and phenolate salt.

(a)

A phenol for purposes of this subclass requires one or more -OH groups directly bonded to a nuclear carbon atom of a substituted or unsubstituted benzene ring, which benzene ring can be an individual benzene ring or can be part of a polycyclic ring system.

(b)

A phenol ether for purposes of this subclass requires one or more -O-C groups wherein the oxygen atom of the -O-C group is directly bonded to a nuclear carbon atom of a substituted or unsubstituted benzene ring and wherein the carbon atom of the -O-C group is not double-bonded to oxygen, sulfur, selenium, or tellurium or triple-bonded to nitrogen. The benzene ring may be an individual benzene ring or may be part of a

polycyclic ring system. The following examples of phenol ether are within the definition set out above. (1)

The -O-C group may itself be part of a cyclic ring system, e.g., [figure]

(2)

The carbon of the -O-C group may be a ring atom of a cyclic or aromatic ring, e.g., [figure]

(3)

The carbon of the -O-C group may be a terminal carbon atom, e.g., as in the first illustration below, or may be the carbon atom of a chain, e.g., as in the second illustration, below. [figure] [figure]

(c)

An inorganic phenolate salt is an inorganic salt of a phenol see (phenol (1) Note) above wherein the hydrogen atom of an -OH group is replaced by a metal or an inorganic group.

SEE OR SEARCH THIS CLASS, SUBCLASS:

480+, for solid polymers derived from a phenolic reactant containing a plurality of methylol groups from a derivative thereof.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, the Glossary, for definitions of the terms "specified polymer-forming ingredients", "specified intermediate condensation product", and "methylol or methylol derivative".