SUBSTANTIALLY ANHYDROUS FOAMING AGENT AND PROCESS FOR PRODUCING THE SAME

Title:

SUBSTANTIALLY ANHYDROUS FOAMING AGENT AND PROCESS FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/1999/045080

Kind Code:

A1

Abstract:

A foaming agent having remarkably controlled solidifying properties and keeping a high fluidity and a dispersibility into a resin even after storage for a long time; and a process for producing the same. It is substantially anhydrous and produced by treating a foaming agent with a surface-treating agent capable of removing water from the foaming agent and, if necessary, heating the foaming agent in the course of or after the treatment.

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Inventors:

MAEKAWA TSUKASA (JP)
UEDA NOBUYUKI (JP)
SHONO SADAFUMI (JP)
TACHI YOSHIFUMI (JP)
SUMITOMO SHIGERU (JP)

Application Number:

PCT/JP1998/003094

Publication Date:

September 10, 1999

Filing Date:

July 10, 1998

Export Citation:

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Assignee:

OTSUKA CHEMICAL CO LTD (JP)
MAEKAWA TSUKASA (JP)
UEDA NOBUYUKI (JP)
SHONO SADAFUMI (JP)
TACHI YOSHIFUMI (JP)
SUMITOMO SHIGERU (JP)

International Classes:

C08J9/00; C08J9/10; (IPC1-7): C09K3/00

Foreign References:

JPH0711234A	1995-01-13
JPH06179862A	1994-06-28
JPH04320432A	1992-11-11
JPH08295872A	1996-11-12
JPS63175040A	1988-07-19
JPS58196240A	1983-11-15

Other References: