Functionalized rubbery polymers
US9587060B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2006 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Oct 13, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L97/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention discloses a process for the synthesis of a rubbery polymer by emulsion polymerization that comprised polymerizing (1) a conjugated diolefin monomer and (2) a functionalized monomer having the structural formula:wherein the R1 groups can be the same or different and represent hydrogen atoms or alkyl groups containing from 1 to about 8 carbon atoms, wherein R2 represents a hydrogen atom or an alkyl group containing from 1 to about 8 carbon atoms, wherein R3 represents a hydrogen atom or an alkyl group containing from 1 to about 8 carbon atoms, and wherein R4 represents a hydrogen atom or an alkyl group containing from 1 to about 8 carbon atoms, with the proviso that if R3 represent an alkyl group then R4 represents a hydrogen atom, and with the proviso that R4 represents an alkyl group then R3 represents a hydrogen atom, wherein said polymerization is conducted in an aqueous medium, and wherein said polymerization is initiated with a free radical initiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.