Porous poly(vinyl acetal) resin body having a high degree of cleanliness, a process of preparing the same, and a method of storing the same
US7337592B2 · kind B2 · utility
1Cited by
13References
12Claims
0Family size
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Key dates
| Filing date | Jun 3, 2005 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Jan 1, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2553/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process of preparing and a method of storing porous poly (vinyl acetal) resin body. A method of storing the porous body involves keeping the porous body wet and free of contamination with organic substances, dissolved ions, and other fine particles. The storing method also involves keeping the body free of mold and avoiding pre-cleaning after a prolonged period of storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.