High solids content, low-viscosity emulsion polymers
US6706356B2 · kind B2 · utility
5Cited by
4References
39Claims
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Key dates
| Filing date | Oct 4, 2002 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/273
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Emulsion polymers useful in the preparation of coatings and adhesives, including PSA tapes, labels, and other constructions, are provided. The polymers are characterized by high solids content and low viscosity. A method of making the polymers is also provided. A plurality of acrylic monomers are copolymerized in the presence of a plurality of surfactants, using a split feed, and the resulting emulsion polymers have a bimodal or higher particle-size distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.