초록 ▼

Process for drying wet particles of hydrolyzed ethylene-vinyl acetate copolymer under the specific condition as follows: A. A PRESSURE IN A DRYER OF NOT MORE THAN 120 MMHg, B. A TEMPERATURE OF THE HEATING SURFACE OF DRYER OF NOT MORE THAN 100°C., and C. T ×q0.6 ≤320, wherein T is a temperature (°C.)

Process for drying wet particles of hydrolyzed ethylene-vinyl acetate copolymer under the specific condition as follows: A. A PRESSURE IN A DRYER OF NOT MORE THAN 120 MMHg, B. A TEMPERATURE OF THE HEATING SURFACE OF DRYER OF NOT MORE THAN 100°C., and C. T ×q0.6 ≤320, wherein T is a temperature (°C.) of the heating surface of dryer and q

대표청구항 ▼

In a process for drying wet particles of hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 20 to 50% by mole, a vinyl acetate content of 80 to 50% by mole and a degree of hydrolysis in vinyl acetate component of at least 90% by mole obtained by hydrolyzing ethylene-vinyl acet

In a process for drying wet particles of hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 20 to 50% by mole, a vinyl acetate content of 80 to 50% by mole and a degree of hydrolysis in vinyl acetate component of at least 90% by mole obtained by hydrolyzing ethylene-vinyl acetate copolymer in a medium, the improvement which comprises carrying out the drying under a pressure in a dryer of up to 120 mmHg, a temperature of the heating surface of the dryer of up to 100°C., and such that T ×q0.6 ≤320 wherein T is a temperature (°C.) of the heating surface and q