DENKA POVAL - ホーム
DENKA POVAL . (Polyvinyl Alcohol). Contents P 1. Process of DENKA POVAL P 1. cation & Grades of DENKA POVAL P 2. & Basic Properties of DENKA POVAL P 3 5. Applications of DENKA POVAL P 6 7. to Use DENKA POVAL P 8. Notice for DENKA POVAL P 9. DENKA POVAL . 1 Introduction DENKA POVAL is a water-soluble polymer described in below chemical formula, and provided as granule or powder form. POVAL (Polyvinyl alcohol) is used in a variety of elds because of its excellent properties such as water-solubility, adhesion strength, mechanical strength, gas barrier and aging resistance. . CH2 CH m CH2 CH . n Polymerization Degree m n . . OH OCOCH3 m Hydrolysis Degree 100 [%]. m n Fig. 1 Chemical Formula of POVAL . 2 Production Process of DENKA POVAL . DENKA POVAL is made from vinyl acetate monomer through polymerization and saponification processes.
2 3 Classifi cation and Grades of DENKA POVAL DENKA POVAL can be classified mainly with polymerization degree, which is often indicated as solution viscosity, and hydrolysis degree. Modified grades are also available to satisfy specified
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