Method of manufacture of a polymeric film with anti-blocking properties
US7597956B2 · kind B2 · utility
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8References
11Claims
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Key dates
| Filing date | Jan 28, 2005 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Apr 21, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/254
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method of fabricating a polymeric film includes adsorbing an ammonium salt surfactant over a plurality of polymer beads. The method also includes adding the polymer beads to a polymer solution, wherein the ammonium salt surfactant substantially prevents flocculation of the polymer beads. Additionally, a polymeric film includes a plurality of polymer beads each having an outer surface. The polymeric film also includes an ammonium salt surfactant disposed over each of the outer surfaces, wherein the ammonium salt surfactant substantially prevents flocculation of the polymer beads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.