POLYAMINE/UNSATURATED ORGANIC ACID COMPOSITION FOR BARRIER COATING

摘要

The present invention teaches a composition which provides gas, flavor, and aroma barrier to substrates, where the composition is formed by mixing an ethylenically unsaturated acid and a polyamine, wherein said polyamine has a crosslinker reacted therein, and wherein said polyamine has four or more A, B or C units, where A is an -R<2>-N(R<1>)2 unit, B is an -R<1>-N(R<2->)2 unit, and C is an (-R<2>)3N- unit, where R<1> is independently selected from hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, and alkylaryl, and R<2> is independently selected from the group consisting of: linear or branched alkylene groups or substituted alkylene groups having from 1 to 18 carbon atoms, and arylene groups or substituted arylene groups having from 6 to 18 carbon atoms. The composition is coated on a substrate then optionally treated to initiate a free radical reaction. The invention can be applied as a coating to a variety of substrates used in packaging applications.