Use of a comb polymer with at least one polyalkylene oxide grafted function as a mineral charge compatibility agent for chlorinated thermoplastic materials
US8039571B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2007 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Sep 24, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/60
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention firstly concerns the use as a compatibilizing agent, in a process to manufacture a chlorinated thermoplastic resin filled with a mineral material, of a comb polymer having at least one anionic monomer with ethylenic unsaturation, to which is grafted at least one polyalkylene oxide group.The invention also concerns the chlorinated thermoplastic materials thus obtained, which have an improved compatibility between the filler and the chlorinated thermoplastic resin, whilst reducing the quantity of compatibilizing agents as used in the chlorinated and filled thermoplastic materials according to the prior art, where the said compatibilizing agents used in the prior art were essentially fatty acids, and more specifically stearic acid or its salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.