US PATENT SUBCLASS 521 / 134
.~.~ Cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {3}
50  DF  .~ CELLULAR PRODUCTS OR PROCESSES OF PREPARING A CELLULAR PRODUCT, E.G., FOAMS, PORES, CHANNELS, ETC. {27}
134.~.~ Cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system {6}
135  DF  .~.~.~> At least one polymer is derived from reactant containing two or more three membered heterocyclic rings having two carbon atoms and one chalcogen atom or polymer-forming system contains the same type of reactant
136  DF  .~.~.~> At least one polymer is derived from an aldehyde or derivative or wherein the polymer-forming system contains the same type of reactant
137  DF  .~.~.~> At least one polymer is derived from a -N=C=X reactant wherein X is a chalcogen atom or wherein the polymer-forming system contains the same type of reactant
138  DF  .~.~.~> At least one polymer is derived from a polycarboxylic acid or derivative and a polyol or wherein the polymer-forming system containing the same type of reactants
139  DF  .~.~.~> At least one polymer is derived from an ethylenically unsaturated aromatic reactant or wherein the polymer-forming system contains the same type of reactant
140  DF  .~.~.~> At least one polymer is derived from reactant containing two or more ethylenic groups or wherein the polymer-forming system contains the same type of reactant

DEFINITION

Classification: 521/134

Cellular product derived from two or more solid polymers or from at least one solid polymer-forming system:

(under subclass 50) Subject matter involving a cellular product derived from mixed solid polymers or from a solid polymer and at least one polymer-forming system or process of preparing such a cellular product; compositions containing mixed solid polymers or a solid polymer and a polymer-forming system or processes of preparing and which are capable of forming a cellular product; processes of treating a cellular product derived from mixed solid polymers or from a solid polymer and a polymer-forming system with a material which neither reacts with the cellular product to change or modify chemical bonds therein or neither forms a desired composition with the cellular product or products of such a treatment; processes of treating a cellular product derived from mixed solid polymers or from a solid polymer and a polymer-forming system without the addition of a material thereto whereby a physical or chemical change in the cellular product may be effected or products which are the result of such a treatment.

(1) Note. Patents are placed away in this and the indented subclasses on the basis of the first appearing polymer or polymer-forming system provided in the schedule array. Each polymer-forming system is to be equated to the solid polymer that would be prepared if the polymer-forming system were polymerized. This and the indented subclasses includes mixtures of polymers wherein one of said polymers may act as a filler, preservative, etc., for the other polymer.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50, for a definition of the term mixed solid polymer or for system of a polymer and a polymer-forming system.

91, for a process of treating a cellular mixed polymer with a material so as to modify or change chemical bonds in the cellular polymer, or wherein a polymer-forming system is added to a cellular polymer to form a desired composition therewith, or for cellular products which are the result of such a treating process.