Preparation of blends of syndiotactic 1,2-polybutadiene and rubbery elastomers with a molybdenum-based catalyst system
US6303692A · kind A · utility
35Cited by
25References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 2000 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Apr 13, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L21/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Blends of syndiotactic 1,2-polybutadiene and rubbery elastomers are prepared by a process that comprises polymerizing 1,3-butadiene monomer into syndiotactic 1,2-polybutadiene within a rubber cement of at least one rubbery elastomer by using a catalyst composition that is formed by combining (a) a molybdenum-containing compound, (b) a hydrogen phosphite, and (c) an organoaluminum compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.