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
0 Assignments
0 Petitions
Accused Products
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.
14 Citations
19 Claims
-
1. (canceled)
-
2. (canceled)
-
3. (canceled)
-
4. (canceled)
-
5. (canceled)
- 6. A method of storing a porous poly(vinyl acetal) resin body prepared with a high degree of cleanliness, characterized in that the method comprises a step of hermetically packaging the body with an oxygen barrier film.
- 10. A method of storing a porous poly(vinyl acetal) resin body having a high degree of cleanliness, characterized in that the method comprises steps of hermetically packaging the porous poly(vinyl acetal) resin body and irradiating the hermetic package with an electron beam or γ
-
17. (canceled)
-
18. (canceled)
Specification