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LOW MELT VISCOSITY POLYGLYCOLIC ACID, PRODUCTION PROCESS THEREOF, AND USE OF LOW MELT VISCOSITY POLYGLYCOLIC ACID
LOW MELT VISCOSITY POLYGLYCOLIC ACID, PRODUCTION PROCESS THEREOF, AND USE OF LOW MELT VISCOSITY POLYGLYCOLIC ACID
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机译:低熔体粘度聚乙酸,其生产过程以及低熔体粘度聚乙酸的使用
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摘要
A low melt viscosity polyglycolic acid having a melt viscosity of at most 100 Pa·s as measured at a temperature higher by 10° C. than the melting point of the polyglycolic acid and a shear rate of 122 sec−1, a temperature at 3%-weight loss on heating of at least 280° C. and a water content of at most 500 ppm, and being in a solid state at a temperature of 20±15° C., and a production process of the low melt viscosity polyglycolic acid including a water vapor absorption step and a heat treatment step for a high melt viscosity polyglycolic acid being in a solid state.
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