US PATENT SUBCLASS 106 / 168.01
.~.~.~ Cellulose ester or salt thereof

Current as of: June, 1999
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106 /   HD   COMPOSITIONS: COATING OR PLASTIC

*  DD  COATING OR PLASTIC COMPOSITIONS {40}
162.1  DF  .~ Carbohydrate or derivative containing {15}
163.01  DF  .~.~ Cellulosic material {11}
168.01.~.~.~ Cellulose ester or salt thereof {21}
169.01  DF  .~.~.~.~> Cellulose nitrate {21}
170.1  DF  .~.~.~.~> With nitrogen hetero ring compound {1}
170.12  DF  .~.~.~.~> With chalcogen hetero ring compound {2}
170.15  DF  .~.~.~.~> With phosphorus compound {1}
170.19  DF  .~.~.~.~> With boron compound
170.2  DF  .~.~.~.~> With organic compound containing silicon
170.21  DF  .~.~.~.~> With natural resin or derivative
170.22  DF  .~.~.~.~> With chemically modified lanolin, fat, or fatty oil (e.g., blown, polymerized, hydrogenized, esterified, etc.)
170.23  DF  .~.~.~.~> With lanolin, fat, or fatty oil (e.g., lard, tallow, castor oil, linseed oil, etc.) {1}
170.25  DF  .~.~.~.~> With terpene or derivative (e.g., camphor, pine oil, terpineol, borneol, etc.)
170.26  DF  .~.~.~.~> With organic -C(=O)O- group containing compound except wax (e.g., fatty acid, dicarboxylic acid, etc.) {2}
170.42  DF  .~.~.~.~> With organic compound containing nitrogen {1}
170.46  DF  .~.~.~.~> With organic compound containing sulfur
170.47  DF  .~.~.~.~> With organic -C(=O)- group containing compound (e.g., aldehyde, ketone, etc.) {2}
170.5  DF  .~.~.~.~> With ether except dialkylene or polyalkylene glycol
170.51  DF  .~.~.~.~> With organic -C(-OH)- group containing compound, where the H of the -OH group can be replaced by a metal (e.g., alkanolate, alkanol, polyol, dialkylene glycol, etc.) {2}
170.55  DF  .~.~.~.~> With organic compound containing halogen
170.56  DF  .~.~.~.~> With bituminous or tarry residue, hydrocarbon, or naturally occurring wax
170.57  DF  .~.~.~.~> With elemental silicon or inorganic silicon compound
170.58  DF  .~.~.~.~> With elemental metal or alloy or metal compound
171.1  DF  .~.~.~.~> Cellulose acetate

DEFINITION

Classification: 106/168.01

Cellulose ester or salt thereof:

(under subclass 163.01) Compositions wherein the cellulosic material is the product of the reaction of a hydroxyl group of cellulose with an acid.

(1) Note. The esterifying acid may be organic or inorganic.

(2) Note. For purposes of classifying patents in this and indented subclasses, each of the following group is considered to be a single cellulose ester and not diverse cellulose esters: (a) cellulose ester of a single acid (e.g., cellulose acetate, cellulose propionate, etc.); (b) cellulose ester of mixed acids (e.g., cellulose butyrate propionate, cellulose propionate isobutyrate, etc.), or (c) mixture of cellulose esters of the same acid differ only in the degree of esterification (e.g., mixture of cellulose propionate and cellulose tripropionate, etc.)

SEE OR SEARCH THIS CLASS, SUBCLASS:

169.01+, for compositions containing cellulose nitrate as the cellulose ester.