Functionalized polymers
US4933391A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1989 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Feb 16, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Living polymers endcapped with a silicon containing group can be prepared by reacting a living, anionic polymer with an endcapping agent such as p-(chloromethylphenyl)trimethoxysilane. Such materials possess narrow molecular weight distributions, predictable molecular weights, and high functionality. The functionality is controlled by employing either a monofunctional (f=1) or difunctional (f=2) initiator. The endcapped, unifunctional products of this invention can serve as stable precursors for the preparation of soluble, branched polymers, and the difunctional products of this invention serve as efficient, water curable coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.