Sterically regulated methacrylic polymer and process for producing the same
US6864338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2003 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Feb 20, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F20/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention provides a high-molecular-weight, sterically regulated methacrylic polymer having high stereoregularity, a narrow distribution of molecular weights, and a high molecular weight, comprising methacrylates as units containing triphenyl amino groups etc. in side chains. The sterically regulated methacrylic polymer comprises 50 to 100 mol-% unit based on methacrylate (1) having a tertiary amino group bound to at least two aromatic rings in a side chain, wherein the number-average molecular weight (Mn) is 5000 to 2000000, the poly dispersity coefficient (Mw/Mn) is 1 to 1.5, and the syndiotacticity of the methacrylic polymer is 70% or more in 2-units expression (%rr).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.