Emulsion process for polymer particles
US4254004A · kind A · utility
31Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 1979 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | May 9, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/22
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An improved two-step process for producing bimodal emulsion polymer particles includes the steps of first providing uniform size polymer particles in the first stage by feeding monomers to the reaction mixture at a rate faster than the rate the monomers polymerize, and followed by a controlled second stage monomer polymerization by feeding monomers to the reaction mixture at a rate slower than the rate of polymerization of the monomers. The polymer particles are bimodal and are particularly useful in coatings, adhesives, and plastics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.