US PATENT SUBCLASS 528 / 129
.~.~ With aldehyde or derivative

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
86  DF  .~ FROM PHENOL, PHENOL ETHER, OR INORGANIC PHENOLATE {15}
129.~.~ With aldehyde or derivative {18}
137  DF  .~.~.~> Polymerizing in the presence of a specified material other than a reactant {9}
148  DF  .~.~.~> Phenolic reactant contains a carboxylic acid or carboxylic acid salt group
149  DF  .~.~.~> Phenolic reactant contains a nitrogen atom
150  DF  .~.~.~> Phenolic reactant contains a sulfur atom
151  DF  .~.~.~> Phenolic reactant contains a halogen atom directly bonded to a nuclear carbon atom of the benzene-oxygen group
152  DF  .~.~.~> Phenolic reactant contains an ethylenically unsaturated group
153  DF  .~.~.~> Phenolic reactant contains at least two ring moieties (includes fused or bridged ring system)
154  DF  .~.~.~> Phenol ether
155  DF  .~.~.~> Two distinct phenolic reactants or two or more hydroxy groups or phenate groups bonded to nuclear carbon atoms of the same benzene ring
156  DF  .~.~.~> Two or more aldehydes or derivatives
157  DF  .~.~.~> Aldehyde or derivative is ethylenically unsaturated
158  DF  .~.~.~> With at least one nonaldehyde phosphorus- or sulfur-containing reactant
158.5  DF  .~.~.~> With a reactant which is a fatty acid glycerol ester, a fatty acid or salt derived from a naturally occurring glyceride, tall oil, or a fatty acid derived from tall oil
159  DF  .~.~.~> With an ethylenically unsaturated reactant
160  DF  .~.~.~> With reactant having only carbon and hydrogen atoms or only carbon, hydrogen, and halogen atoms
161  DF  .~.~.~> With at least one reactant which is other than an aldehyde or derivative and which contains a carboxylic acid, anhydride thereof, salt thereof, or ester thereof
162  DF  .~.~.~> With nitrogen-containing reactant {2}
165  DF  .~.~.~> Aldehyde or derivative is sole coreactant

DEFINITION

Classification: 528/129

(under subclass 86) Subject matter wherein a polymer is derived from at least one phenol, phenol ether, or inorganic phenolate and at least one aldehyde or derivative.

(1) Note. (a) An aldehyde derivative is:

(1)

Compounds having a X-CH2-OH group wherein X is other than a

carbon or hydrogen (e.g., paraformaldehyde, methyol derivatives of urea, etc.).

(2)

Heterocyclic compound having only carbon and oxygen as ring members in an alternating manner and in equal amount, i.e., as illustrated below, e.g., trioxane. [figure] (3)

Hexamethylenetramine (CH2)6N4, known also as methenamine, hexamine, formine, hexamethyleneamine, and urotropin and its derivatives. A derivative for purposes of this subclass requires the basic ring structure of hexamethylenetetramine but wherein the hydrogen atoms may have been replaced by other atoms. See illustration below. [figure]

(2) Note. Compounds having a -CH2OH group bonded to elements other then C, H, or oxygen are regarded as being two compounds; for instance, a methylol derivative of melamine is regarded as a mixture of melamine and formaldehyde, and methylol urea is regarded as being a mixture of urea and formaldehyde.

(3) Note. An unspecified novolak or resole is proper for this area in that it is a mixture of a phenol and an aldehyde. If a novolak or resole of specified structure is claimed as a reactant, then classification is proper based on the structure of the specific reactant.

(4) Note. For purposes of this subclass, a reactant composed of only halogen and carbon atoms is considered as being a halogenated carbon and is therefore proper for subclass 160.

SEE OR SEARCH THIS CLASS, SUBCLASS:

480+, for cross-references placed therein when liquid novolak or resole is utilized as a reactant in the subclass or its indents. Such liquid reactants are regarded as solids for purposes of cross-references.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, see the Glossary for a definition of the term "aldehyde".