申请人:Eastman Kodak Company
公开号:US04958043A1
公开(公告)日:1990-09-18
A composition useful for incorporation into polymer compositions employed for food packaging or the like comprising a bis- or tris-methine compound having the structural formula ##STR1## wherein A is selected from the radicals ##STR2## wherein R' and R" are each selected from chlorine, bromine, fluorine, alkyl, alkoxy, aryl, aryloxy and arylthio; each n is independently 0, 1, 2; R.sub.1 is selected from a large variety of radicals such as cycloalkyl, phenyl, and straight or branched alkyl which may be substituted; R.sub.2 is alkylene or the like; R.sub.3, R.sub.4, and R.sub.5 are each selected from hydrogen and alkyl; and P and Q and P.sup.1 and Q.sup.1 are selected from cyano, carbalkoxy, carbaryloxy, carbaralkyloxy, or the like. The invention compositions are especially useful in combination with molding or fiber-grade condensation polymer; most preferably such polymer having copolymerized therein a total of from 1.0 to about 100,000 ppm, of the reactant residue moieties of one or more of such bis- or tris-methine compounds.
适用于食品包装或类似用途的聚合物组合物,包括具有结构式##STR1##的双或三次甲烯化合物,其中A选自基团##STR2##其中R'和R"各自选自氯,溴,氟,烷基,烷氧基,芳基,芳氧基和芳硫基;每个n独立地为0,1,2; R.sub.1选自各种基团,例如环烷基,苯基和可取代的直链或支链烷基; R.sub.2是烷基或类似物; R.sub.3,R.sub.4和R.sub.5各自选自氢和烷基; P和Q和P.sup.1和Q.sup.1选自氰基,羧基烷基,羧基芳基氧基,羧基烷氧基或类似物。该发明组合物特别适用于与模塑或纤维级缩聚聚合物组合使用; 最好是这种聚合物中共聚合了一个或多个这种双或三次甲烯化合物的反应残留基团,总量为1.0至大约100,000 ppm。