Initiation system and process for anionic (co) polymerization of (Meth) acrylic, vinylaromatic and/or diene monomers
US6489262B2 · kind B2 · utility
1Cited by
6References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1998 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Apr 10, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F297/026
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to an initiation system composed of the reaction product of at least one cyclic siloxane and at least one organometalic compound of sufficient reactivity to open the siloxane ring.Application of the present invention is to the preparation of homopolymers of (meth)acrylic, vinylaromatic or diene monomers, random or block copolymers of these monomers and, in particular, application to poly(methylmethacrylate) with a high content of isotactic triads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.