Patent ID: 9349961
Filing Date: 2016-05-24
CPC Classification: C08G,H01L

Claim Text:
1. A polymer, which has a weight-average molecular weight (Mw) of 20,000 or more and a degree of dispersion (Mw/Mn) of 2.5 or less, comprising a repeating unit represented by the following general formula (1) and a cross-linkable group: wherein: Ar Ar Ar Ar R r represents an integer of from 0 to 5, and R wherein the repeating unit represented by the above-described general formula (1) may contain the cross-linkable group, and wherein the cross-linkable group is at least one group selected from the group T of the following cross-linkable groups: wherein: R Ar X R wherein the benzocyclobutene ring may have substituent(s), and the substituents may be connected to each other to form a ring.