| 摘要 |
A solid, microencapsulated product is obtained by (i) preparing a film-forming aqueous medium comprising a film-forming polymer such as polyvinylpyrollidone and an aqueous suspension of a microencapsulated material, (ii) casting the aqueous medium thus formed onto a substrate and (iii) drying the cast medium to form a cast of the film-forming polymer containing the microencapsulated material. |
