申请人:Eastman Kodak Company
公开号:US04740581A1
公开(公告)日:1988-04-26
Condensation polymers including linear polyester, unsaturated polyester, and polycarbonate types, wherein certain 3H-dibenzo-[f,ij] isoquinoline-2,7-dione colorants are copolymerized (condensed) into the polymer to impart a wide range of colors from yellow to blue thereto. These colorants are fast to ultraviolet and visible light, are thermally stable and nonsublimable at the polymer processing (includes preparation) temperatures, and are nonextractable therefrom, rendering the polymers particularly suitable for use as beverage bottles and food, pharmaceutical and cosmetic containers, as well as in producer colored fibers. The colorants have the formula ##STR1## wherein: X is --O--, --S-- or --NH--; --X--R.sub.1 --Z in combination is hydrogen or halogen; R.sub.1 is selected from alkyl, aryl, cycloalkyl or the like, and when X is --O-- or --NH--, --R.sub.1 --Z also can be hydrogen; each of R.sub.1, Rhd 2, R.sub.3 and R.sub.4 is hydrogen or an organic substituent; and wherein the molecule carries at least one condensable group.
缩聚聚合物包括线性聚酯、不饱和聚酯和聚碳酸酯类型,其中某些3H-二苯并[f,ij]异喹啉-2,7-二酮颜料被共聚(缩合)到聚合物中,使其呈现从黄色到蓝色的广泛颜色范围。这些颜料对紫外线和可见光具有快速性,具有热稳定性,在聚合物加工(包括制备)温度下不可升华,且不可从中提取,使得聚合物特别适用于用作饮料瓶和食品、药品和化妆品容器,以及生产有色纤维。颜料的化学式为##STR1##其中:X是--O--,--S--或--NH--;--X--R.sub.1--Z的组合是氢或卤素;R.sub.1选择自烷基,芳基,环烷基或类似物,当X为--O--或--NH--时,--R.sub.1--Z也可以是氢;每个R.sub.1,R.sub.2,R.sub.3和R.sub.4是氢或有机取代基;分子带有至少一个可缩聚基团。