One-pot synthesis of nanoparticles and liquid polymer for rubber applications
US7829624B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2007 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | Apr 1, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L51/003
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for performing a one-batch synthesis of a blend of nanoparticles and liquid polymer includes polymerizing a first monomer and optionally a second monomer in a hydrocarbon solvent to form the liquid polymer. The polymerization is terminated before completion with a quenching agent. Then a charge of polymerization initiator, and a mixture of multiple-vinyl aromatic monomer and mono-vinyl aromatic monomer are added. This causes further polymerization whereby nanoparticles are formed in situ having a core including the multiple-vinyl aromatic monomer, and a shell including the first monomer or the first monomer and the second monomer. Liquid polymer/nanoparticle blends resulting from the method and rubber compositions incorporating the blends are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.