PRODUCTION OF MOLASSES-CONTAINING POLYISOCYANATE

Title:

PRODUCTION OF MOLASSES-CONTAINING POLYISOCYANATE

Document Type and Number:

Japanese Patent JPH10324729

Kind Code:

A

Abstract:

To provide an easily usable polyurethane raw material capable of surely imparting biodegradability to polyurethane with high storage stability.

In a method for producing a molasses-containing polyisocyanate by reacting molasses with a polyisocyanate, molasses or molasses polyol obtained by adding a volatile hydrophilic solvent to molasses or a mixture of molasses and a polyol to precipitate an inorganic substance, removing the inorganic substance and removing the solvent by distillation is blended with a polyisocyanate in a molar ratio of (NCO group/OH group)>2, and reacted to obtain the objective molasses-containing polyisocyante.

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Inventors:

HIROSE SHIGEO
HATAKEYAMA HYOE
SANO TAKASHI
TERUYA TERUKAZU

Application Number:

JP13373397A

Publication Date:

December 08, 1998

Filing Date:

May 23, 1997

Export Citation:

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Assignee:

AGENCY IND SCIENCE TECHN
TOROPIKARU TECHNO CENTER KK
DAI ICHI KOGYO SEIYAKU CO LTD

International Classes:

C08G18/32; (IPC1-7): C08G18/32

Attorney, Agent or Firm:

Hitoko Tsuda (1 person outside)

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