Process for agglomerating a latex, agglomerated latex obtained and its application to the modification of thermoplastic matrices to make them impact-resistant
US5244940A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1990 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Oct 11, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F6/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The agglomeration of a latex of a polymer chosen from elastomers and thermoplastic resins is performed by mixing the latex to be agglomerated with an agglomerating latex consisting of: PA1 (A) a polymer chosen from elastomers and thermoplastic resins; and PA1 (B) a nonionic surface-active agent consisting of a block polymer containing at least one polyoxyethylene block and at least one block of a polymer chosen from vinyl, diene and acrylic and methacrylic ester polymers, the said agglomerating latex being produced by the synthesis of the polymer defined under (A) during which (B) has been employed as a surfactant. The polyoxyethylene-polystyrene-polyoxyethylene triblock polymer may be mentioned among the surface-active agents (B).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.