US PATENT SUBCLASS 521 / 153
.~.~ Cellular product derived from aluminum or heavy metal containing reactant

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}
153.~.~ Cellular product derived from aluminum or heavy metal containing reactant

DEFINITION

Classification: 521/153

Cellular product derived from aluminum or heavy metal containing reactant:

(under subclass 50) Subject matter involving a cellular polymer derived from at least one reactant which contains an aluminum or heavy metal atom or process of preparing; composition containing a polymer derived from a reactant containing an aluminum or heavy metal atom or from a polymerizable reactant containing an aluminum or heavy-metal atom and which composition is capable of preparing a cellular product; processes of treating a cellular polymer derived from an aluminum or heavy metal containing reactant with a material which neither reacts with the cellular polymer to change or modify chemical bonds therein or neither forms a desired composition with the cellular polymer or products of such a treatment; processes of treating a cellular polymer derived from an aluminum or heavy metal containing polymer without the addition of material thereto whereby a physical or chemical change in the polymer may be effected or products which are the result of such a treatment.

(1) Note. Heavy metal denotes a metal atom having a specific gravity greater than four.

SEE OR SEARCH THIS CLASS, SUBCLASS:

53+, for a process of treating a cellular polymer with a material so as to modify or change chemical bonds in the cellular polymer or wherein a material 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.