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US 9,029,482 B2Granted
Method for preparing polycondensation resin
AssigneeCheil Industries Inc.
InventorsTomomich Kanda, Shimoda Tomoaki, Bok Nam Jang, Seung Hyun Jang
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Abstract
Disclosed herein is a method for preparing a polycondensation resin. The method includes preparing a low degree condensate; and solid phase polymerizing the low degree condensate, wherein a granular molded article is introduced into the solid phase polymerization. The method enables efficient manufacture of high quality resins without problems such as agglomeration or scaling of a low degree condensate in pipes.
Claims19
A method for preparing a polycondensation resin, comprising:
- preparing a low degree condensate;
- and
- solid phase polymerizing the low degree condensate,
- wherein a granular molded article is provided upon solid phase polymerization and wherein the granular molded article has a particle diameter of 3 mm to about 30 mm.
1 more element
Dependencies are inferred from the claim text.