Patent ID: 6333390
Filing Date: 2001-12-25
Classification: C08F,C08G,C08L,C09D,C09J

Abstract:
A branched or hyperbranched polymeric structure which contains at least one etherimide branch point from the group comprising any of the following generic structures:(a) at least one structural unit which is considered to be an etherimide branch point of an A.sub.1 B.sub.2 type having at least one of the following structures ##STR4##(b) at least one structural unit which is considered to be an etherimide branch point of an A.sub.1 B.sub.3 type having at least one of the following structures ##STR5##(c) At least one structural unit similar to those in (b) above and derived from A.sub.1 B.sub.n branch points (where n>3);(d) at least one structural unit which contains an aryl imide and is considered to be an etherimide branch point of an A.sub.1 B.sub.2 type of which the naphthalimide structures below are an example having at least one of the following structures ##STR6##(e) at least one structural unit which contains an aryl imide and is considered to be an etherimide branch point of an A.sub.1 B.sub.2 type and of which the naphthalimide structures below are an example having at least one of the following structures ##STR7##(f) At least one structural unit similar to those in (e) above and derived from A.sub.1 B.sub.n branch points (where n>3).