(under subclass 62.53) Compositions containing a synthetic resin or materials disclosed to be polymerizable or resinifiable to produce a synthetic resin.
(1) Note. A synthetic resin for purposes of this subclass is a solid film forming or moldable polymeric material having physical properties akin to natural resins, the polymer chains of said synthetic resins having been prepared by the reaction of nonresinous compounds. This subclass also includes compositions containing nonresinous compounds which are recited as resinifiable to produce a synthetic resin as defined above and composition containing a catalyst to effect such resinification.
(2) Note. Specifically excluded from this subclass are natural drying oils and the dried compositions therefrom and cellulose or its derivatives.
