Polyacrylate dispersions prepared with a water-soluble conjugated unsaturated monomer in the absence of a protective colloid
US4966939A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1986 |
| Grant date | Oct 30, 1990 |
| Priority date | — |
| Expiry date | Jul 11, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are aqueous polyacrylate dispersions having improved rheological and stability characteristics prepared by the emulsion polymerization of acrylic esters, methacrylic esters and mixtures thereof in the absence of a protective colloid, wherein the improvement comprises conducting the polymerization in the presence of, by weight of the total monomer content, from about 0.1 to 2% of at least one substantially completely water-soluble monomer having conjugated unsaturation. The resultant aqueous polyacrylate dispersions are useful in the manufacture of latex paints, binders for nonwoven materials, water-based inks, paper coatings and water-borne adhesives, such as pressure-sensitive adhesives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.