A refining method of poly Carbo diimide

Title:

A refining method of poly Carbo diimide

Document Type and Number:

Japanese Patent JP6250682

Kind Code:

B2

Abstract:

A process for purifying a polycarbodiimide comprising (a) providing a mixture comprising a polycarbodiimide and a carbodiimidization catalyst; (b) separating carbodiimidization catalyst from the polycarbodiimide by subjecting the mixture according to (a) to a first distillation, (c) adding an entrainer to the first bottom product obtained from (b) to obtain a mixture; (d) further separating carbodiimidization catalyst from the polycarbodiimide by subjecting the mixture obtained from (c) to a second distillation.

Inventors:

Curry
Echa Barrier Fonseca, Maria Teresa
Rayling, Rals
Scheffer, Frank
Armadonian, Fateh Mee
Bormann, Heinrich
Bubolts, Marx
Bushman, Karsten
Schultz, Gunther
Thomas, Maria

Application Number:

JP2015532403A

Publication Date:

December 20, 2017

Filing Date:

September 19, 2013

Export Citation:

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