US PATENT SUBCLASS 525 / 50
.~ 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

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.~ 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}
51  DF  .~.~> Effecting a change in a process in response to a measurement or test
52  DF  .~.~> Utilizing a tubular or loop reactor
53  DF  .~.~> Utilizing an apparatus with two or more physically distinct zones
54  DF  .~.~> Removing and recycling material from one zone to another
54.1  DF  .~.~> Containing chemically combined protein or biologically active polypeptide {1}
54.2  DF  .~.~> Previously formed solid polymer chemically reacted with carbohydrate or derivative {2}
54.3  DF  .~.~> Previously formed solid polymer containing chemically combined carbohydrate admixed with a chemical treating or ethylenic agent, SPFI, SICP, or solid polymer {1}
54.4  DF  .~.~> Containing chemically combined natural resin or derivative thereof other than tall oil {3}
54.5  DF  .~.~> Chemically combined coal, bituminous material, extract, or derivative thereof; oil shale; or fatty still residue
55  DF  .~.~> At least one solid polymer derived from ethylenic reactants only {25}
389  DF  .~.~> Solid polymer derived from reactant containing atoms other than C, H, N, Si, P, chalcogen, halogen, or an alkali or alkaline earth metal in salt form
390  DF  .~.~> Solid polymer derived solely from phenolic reactants wherein none of the reactants contains a plurality of methylol groups or derivatives thereof {6}
398  DF  .~.~> Solid polymer derived from aldehyde, aldehyde derivative, or liquid polymer thereof as sole reactant and wherein none of the reactants contains a plurality of methylol groups or derivatives thereof {4}
403  DF  .~.~> Solid polymer is derived from 1,2-epoxy compound containing only one 1,2 epoxy group as sole reactant and wherein none of the reactants contains a plurality of methylol groups or derivatives thereof {5}
410  DF  .~.~> Solid polymer derived from hetero-O-cyclic compounds as sole reactants wherein at least one reactant contains a hetero-O-ring other than solely as a 1,2-epoxy or anhydride, and wherein none of the reactants contains a plurality of methylol groups or derivatives thereof {5}
416  DF  .~.~> Solid polymer derived from hydrocarbon or halogenated hydrocarbon as sole reactant or mixture thereof
417  DF  .~.~> Solid polymer derived from heterocyclic materials as sole reactants wherein each of the heterocyclic materials contains a hetero ring other than solely as a lactam, 1,2-epoxy or carboxylic acid anhydride and wherein none of the reactants contains a plurality of methylol groups or derivatives thereof
418  DF  .~.~> Solid polymer derived from at least one carboxylic acid or derivative {3}
452  DF  .~.~> Solid polymer derived from -N=C=X reactant (X is chalcogen) {1}
461  DF  .~.~> Solid polymer derived from O-C(=O)-O- or hal-C(=O)-containing reactant {1}
471  DF  .~.~> Solid polymer derived from ketone reactant and wherein none of the reactants forming the solid polymer contains an aldehyde group or is an aldehyde-type reactant or polymer derived therefrom
472  DF  .~.~> Solid polymer derived from aldehyde or aldehyde-type reactant and wherein none of the reactants forming the solid polymer contains a phenol-, amine-, -N=C=X, -N-S(=O)- or ketone group or a condensate thereof except when an amine group appears in hexamethylenetetramine or a derivative thereof (X is chalcogen) {1}
474  DF  .~.~> Solid polymer derived from silicon-containing reactant {4}
480  DF  .~.~> Solid polymer or specified intermediate condensation product derived from at least one phenolic reactant and at least one aldehyde or aldehyde-type reactant or polymer therefrom {10}
509  DF  .~.~> Solid polymer or SICP derived from at least one amine-, N-C(=X)- or N-S(=O) containing reactant and at least one aldehyde or aldehyde-type reactant (X is chalcogen) {5}
521  DF  .~.~> Solid polymer or SICP derived from at least one ketone reactant and at least one aldehyde or aldehyde derivative reactant {1}
523  DF  .~.~> Solid polymer contains more than one 1,2-epoxy group or is derived from reactant containing at least one 1,2-epoxy group {4}
534  DF  .~.~> Solid polymer derived from phenolic reactant
535  DF  .~.~> Solid polymer derived from sulfur-containing reactant {2}
538  DF  .~.~> Solid polymer derived from phosphorus-containing reactant
539  DF  .~.~> Solid polymer derived from at least one unsaturated reactant and at least one saturated reactant
540  DF  .~.~> Solid polymer derived from nitrogen-containing reactant

DEFINITION

Classification: 525/50

MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT WITH SPECIFIED INTERMEDIATE CONDENSATION PRODUCT OR SPECIFIED POLYMER-FORMING INGREDIENTS; MIXING OF SPECIFIED INTERMEDIATE CONDENSATION PRODUCT 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:

(under subclass 1) Subject matter under Class 520, ... which involves the mixing of a solid polymer with solid polymers, with a specified intermediate condensation product (SICP), with specified polymer-forming ingredients (SPFI), with an ethylenic reactant, or with a chemical treating agent; or the mixing of a specified intermediate condensation product with a diverse specified intermediate condensation product, with specified polymer-forming ingredients, or with an ethylenic reactant; or processes of producing, or the resultant product of any of the above mixtures. The above combinations may be tabulated in a more easily recognizable form as follows in (1) Note below.

(1) Note. Combinations proper for this subclass and its indents:

1. P1+P2

2. P + SICP

3. P + SPFI

4. P + ER

P = Solid polymer 5. P + CTA

6. SICP1+SICP2

7. SICP + SPFI

8. SICP + ER, wherein

P = Solid Polymer

SICP = Specified intermediate condensation product

SPFI = Specified polymer-forming ingredients

ER = Ethylenic reactant

CTA = Chemical treating agent

(2) Note. A polymer is a solid when so stated or when it is described in one or more of the following terms. This list is not to be taken as limiting a solid to the enumerated terms. Other terms in patents not noted below may be interpreted as being solid when proper description is given therein:

1. coagulated

2. brittle 3. ductile

4. Durran m.p.

5. elastic

6. elastomer

7. fiber-forming

8. friable

9. fusible

10. gum

11. meltable

12. melting point

13 millable

14. molten

15. pliable

16. powder

17. rubber

18. rubbery

19. thermoplastic

20. thermoset

A wax is not considered to be a solid even if defined by one or more of the above terms.

(3) Note. Specified intermediate condensation product is limited to the following:

(A)

Reactants noted in categories 1-3 below either as enumerated or with additional reactants, with the proviso that at least one of the reactants noted in 1-3 must be saturated, or (B) to the materials having the formulas set forth in categories 4-6. It must be remembered for purposes of classification that the structural formulas noted in 4-6 below are methylol compounds or derivatives thereof and are to be regarded as being a mixture of an aldehyde and the appropriate other reactant or reactants, with the proviso that at least one of the reactants used in preparing the methylol compound be saturated. In this regard, a methylol phenol is classified as if it were a mixture of formaldehyde and phenol, and methylol urea is classified as if it were a mixture of formaldehyde and urea.

(1) Reaction of an aldehyde or aldehyde derivative and/or an amine or compound containing an N or N moiety (X is chalcogen).

(2)

Reaction of an aldehyde or aldehyde derivative and a phenolic material.

(3)

Reaction of an aldehyde or aldehyde derivative and a ketone.

(4)

A compound containing [figure]

(5)

A compound containing a [figure]

(6)

A compound containing a [figure] Y" and Y" are or hydrocarbon groups.

T - is an atom other than H or carbon of a carbon-substituted radical.

A - is a hydrogen or carbon atom and which carbon is bonded to only H, carbon, or single-bonded to oxygen atoms.

X - is H, part of an ether group, or an inorganic cation.

N -is two or more, B is one or more.

Z -is a H or carbon radical.

Compounds containing ethylenic unsaturation are not considered to be specified intermediate condensation products (see structures 4-6 under specified intermediate condensation products above) nor are methylol or methylol derivatives, per se.

(4) Note. Specified Polymer-Forming Ingredients are Limited to: Those materials listed below under fourteen (14) different categories wherein at least one of each necessary reactants be utilized and that at least one be saturated. The term "poly" as noted in the specified polymer-forming ingredients area below is meant to include only reactants which are either (1) monomeric and in any physical state, or (2) polymeric but in a nonsolid physical state. The term "poly" designates that at least two of the required functional groups are present. In the classification schedule the term "necessary ingredients" has been utilized is some subclasses to include the combination of materials enumerated below (1-14) which must be present to have specified polymer-forming ingredients.

(1)

aldehyde or aldehyde derivative and a phenolic material

(2)

aldehyde or aldehyde derivative and an organic amine. Compounds containing ethylenic unsaturation are not considered to be specified intermediate condensation products (see structures 4-6 above) nor are methylol or methylol derivatives, per se. (3)

aldehyde or aldehyde derivative and aC- containing moiety (X is chalcogen)

(4)

aldehyde or aldehyde derivative and a hydrocarbon

(5)

epoxides containing more than one 1, 2-epoxy group per mole

(6)

organic compounds containing more than one -N=C=X (X is chalcogen atom) and an organic polyol

(7)

organic compounds containing more than one -N=C=X (X is chalcogen) and an organic polyamine

(8) organic compound containing more than one -N=C=X (X is chalcogen) and a poly carboxylic acid or anhydride

(9)

carbonic acid halocarbonate or a carbonate and a polyol

(10)

halhal and a polyol

(11)

polycarboxylic acid or derivative and a polyol

(12)

polycarboxylic acid or derivative and a polyamine

(13)

aldehyde or aldehyde derivative and a compound containing an organic N moiety

(14) aldehyde or aldehyde derivative and a ketone

(15)

Materials which, present in the composition are either claimed or disclosed as being coreactable to form a solid polymer.

(5) Note. An aldehyde derivative for purposes of this subclass includes (a) Compounds having a X-CH2[end

subscrpt]OH group wherein X is other than carbon or hydrogen. Included herein are paraformaldehyde, methylol derivatives of urea, nylon, and polyacrylamide, etc.; (b) Heterocyclic compounds having only carbon and oxygen as ring atoms in an alternating manner and in equal amount, i.e., (O-)n; Included herein is trioxane; (c) Hexamethylenetetramine or its derivatives, as illustrated below. A derivative of this type requires the basic ring structure of hexamethylenetetramine but wherein the hydrogen atoms may have been replaced by other atoms. [figure]

(6) Note. Compounds having a methylol group (-CH2OH) bonded to atoms other than carbon, oxygen, or hydrogen are regarded for this subclass as being two compounds, one of which is formaldehyde. For instance, a methylol derivative of melamine is regarded as being a mixture of melamine and formaldehyde. Methylol urea is regarded as being a mixture of formaldehyde and urea.

(7) Note. Paraformaldehyde polymer is regarded as a formaldehyde reactant.

(8) Note. A resole is considered to be a specified intermediate condensation product even if the structure is recited. However, a novolak is considered to be a solid phenolaldehyde polymer.

(9) Note. When nonpolymeric reactants A, B, and C, none of which is a specified intermediate condensation product, are mixed simultaneously under controlled conditions such that in a first stage one or two (e.g., A and/orB) of the reactants are caused to react to form a solid intermediate condensation product and the other reactants are caused to react later in the process, the claim is classified on the basis of the reactants which were introduced initially and not on the intermediate solid product unless a material is added subsequent to the formation of the solid intermediate and prior to the reaction of the final reactants.

(10) Note. A specified intermediate condensation product has been limited to a condensation product of an aldehyde with at least one of phenol, phenol either, inorganic phenolate, N, N- containing reactant (X is chalcogen) or ketone wherein the condensation product contains a plurality of methylol groups (-CH2OH) or the partially or fully etherified product thereof (-CH2OR). In those instances where it is unknown from the claims or disclosure whether methylol or etherified methylol groups are present, the document has been considered to have methylol groups and crossed to where it would be classified if no methylol groups were present.

(11) Note. For purposes of this class all solid polymers are regarded as being reactants.

(12) Note. Natural rubber is a solid polymer proper for this class. A natural rubber or modified form thereof is considered as if it were derived from a monomer containing two ethylenic groups, i.e., isoprene. See the Search Notes, infra.

(13) Note. In order for a patent to be proper for this subclass and its indents, there must be a Desire or Intent to produce a composition of two or more solid polymers. Similarly the other mixing or forming or reacting processes of this subclass and its indents require an ultimate Desire or Intent to produce a mixture or reaction product. See Classes 526 to 528 for processes of in the presence of a previously formed solid polymer as a specified material, where there is no intent to form a composition or reaction product therewith.

SEE OR SEARCH THIS CLASS, SUBCLASS:

165+, for natural rubber + polyol + polycarboxylic acid or derivative.

232, for natural rubber + polybutadiene. This composition is considered as a mixture of two polymers, each of which is derived from ethylenic reactants only.

317+, for natural rubber + styrene reactant.

SEE OR SEARCH CLASS

528, Synthetic Resins or Natural Rubbers,

480+, for removing contaminants or undesirable materials from a solid polymer and wherein the polymer is not chemically modified, and, for example, for heating of a solid polymer by admixing with a heated fluidized bed of another solid polymer there being no intebt to produce a composition).