Ultra fine polymer particle and composite material of preparation for methods
US4839463A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1986 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Mar 19, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2401/32
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cumulatable ultrafine polymer particle consisting of one molecular chain of the polymer is prepared by spreading a dilute solution of the polymer at the interface between the atmosphere and a subphase solution having a weak affinity for the polymer, and evaporating the spreading solvent or dissolving it into the subphase. A composite material comprising the polymer particles is produced by contacting the particles formed on the subphase solution with the surface of a substrate. The particles are cumulated on the substrate in a ratio of area occupied by the particles of at least 10%. The particles may be cumulated in multiple layers on the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.