US PATENT SUBCLASS 521 / 99
.~.~ Cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water

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}
99.~.~ Cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water {18}
100  DF  .~.~.~> Ingredient is water settable inorganic composition
101  DF  .~.~.~> Ingredient is bituminous or asphaltic material
102  DF  .~.~.~> Ingredient is a protein containing material
103  DF  .~.~.~> Ingredient contains a boron atom {2}
106  DF  .~.~.~> Ingredient contains a phosphorus atom {1}
109.1  DF  .~.~.~> Ingredient is carbohydrate, or natural resin
110  DF  .~.~.~> Ingredient contains a silicon atom as part an organic compound {2}
113  DF  .~.~.~> Ingredient is aldehyde or ketone
114  DF  .~.~.~> Ingredient contains a -C-X-C- group wherein X is a chalcogen atom and none of the C atoms bonded to the chalcogen are double-bonded to an additional chalcogen atom {2}
117  DF  .~.~.~> Ingredient contains a -C-XH group wherein X is a chalcogen atom and the carbon atom is not double-bonded to a chalcogen atom, phenol, etc. {1}
119  DF  .~.~.~> Ingredient is inorganic halogen containing material
120  DF  .~.~.~> Ingredient contains a sulfur atom {1}
122  DF  .~.~.~> Ingredient contains a silicon atom
123  DF  .~.~.~> Ingredient contains a metal atom {1}
128  DF  .~.~.~> Ingredient is a nitrogen containing compound {1}
130  DF  .~.~.~> Ingredient contains a carbon atom double bonded to oxygen, e.g., carboxylic acid, etc.
131  DF  .~.~.~> Ingredient contains only carbon and hydrogen atoms, only C and halogen atoms, or only C, H, and halogen atoms {1}
133  DF  .~.~.~> Ingredient is gaseous at ambient conditions, e.g., air, oxygen, etc.

DEFINITION

Classification: 521/99

Cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water:

(under subclass 50) Subject matter wherein cells are formed prior to, or during the solid polymer formation and wherein the cell formation is performed in the presence of a stated ingredient.

(1) Note. This subclass provides (1) for processes of forming cellular products in the presence of a stated ingredient; or (2) for polymer-forming compositions which

will form cells and which contain a stated ingredient; or (3) for processes of preparing a polymer-forming composition which contains a stated ingredient and wherein said composition can be made into a cellular product.

SEE OR SEARCH THIS CLASS, SUBCLASS:

50, the (7) Note for the definition of "stated ingredient". Certain exceptions do exist and are noted:

Water in any of its physical forms is excluded herefrom as being a stated ingredient.

(B) Materials which are categorized as curing, cross-linking, or chain-extenders are excluded herefrom and are to be considered as polymer-forming additives.

(C) (1) In processes wherein an isocyanate is a reactant a further exception to the stated ingredient definition is that a compound containing only a single C-XH, C-NH2, -C=NH, or CXH group (wherein X is a chalcogen) is always considered as being a reactant rather than as a stated ingredient. (2) In those processes wherein an isocyanate is a reactant a compound containing two or more C-XH, C-NH2, -C= NH, or CXH groups or combination of such groups (wherein X is a chalcogen) is always considered as being a reactant rather than as a stated ingredient.

134, through 189, for a cellular product which has been prepared in the presence of a stated ingredient.