Diyne-containing (co)polymer, processes for producing the same, and cured film
US6528605B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Feb 21, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G61/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A diyne-containing (co)polymer which is soluble in organic solvents, has excellent processability, and gives a cured coating film excellent in heat resistance, solvent resistance, and low-dielectric characteristics, and mechanical strength; processes for producing the same; and a cured film. The diyne-containing (co)polymer contains at least 10 mol % repeating units represented by the following formula (1) and has a weight-average molecular weight of from 500 to 1,000,000:&Brketopenst;C≡C&Parenopenst;Y&Parenclosest;nC≡C—Ar&Brketclosest;  (1)wherein Y represents a specific bivalent organic group; Ar represents a bivalent organic group; and n represents 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.