C08K

USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS (paints, inks, varnishes, dyes, polishes, adhesives C09)[2]

Note(s) In this subclass, the last place priority rule is applied, i.e. at each hierarchical level, in the absence of an indication to the contrary, an ingredient is classified in the last appropriate place.[2,4,6]In this subclass: a mixture of ingredients is classified in the most indented group covering all the essential ingredients of the mixture, e.g.: a mixture of a monohydroxylic and a polyhydroxylic alcohol C08K 5/05;a mixture of two polyhydroxylic alcohols C08K 5/053;a mixture of an alcohol and an ether C08K 5/04;a mixture of an ether and an amine C08K 5/00;a mixture of an amine and a metal C08K 13/02; ammonium salts are classified in the same way as metal salts. In this subclass, any ingredient of a mixture which is not identified by the classification according to Note (2) above, and the use of which is determined to be novel and non-obvious, must also be classified in this subclass according to Note (1). The ingredient can be either a single compound or a composition in itself.Any ingredient of a mixture which is not identified by the classification according to Notes (2) or (3) above, and which is considered to represent information of interest for search, may also be classified in this subclass according to Note (1). This can, for example, be the case when it is considered of interest to enable searching of mixtures using a combination of classification symbols. Such non-obligatory classification should be given as "additional information".