Rubbery polymer, method of preparing the same, graft copolymer, and thermoplastic resin composition
US10501570B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2016 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Nov 29, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present disclosure relates a method of preparing a rubbery polymer, a rubbery polymer, and a graft copolymer and thermoplastic resin composition including the rubbery polymer. In accordance with the present disclosure, a rubbery polymer, in which a large-diameter rubbery polymer and a small-diameter rubbery polymer are formed in a desired ratio by controlling the contents, addition time points, and types of a crosslinking agent, an emulsifier, and a molecular weight regulator when a conjugated diene monomer, the crosslinking agent, the molecular weight regulator, and the emulsifier are polymerized, and a graft copolymer and thermoplastic resin composition having excellent surface gloss and mechanical properties are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.