PRODUCTION AND USE OF RIGID POLYURETHANE FOAM WITH LOW THERMAL CONDUCTIVITY - ELASTOGRAN GESELLSCHAFT MIT BESCHRAKTER HAFTUNG

Title:

PRODUCTION AND USE OF RIGID POLYURETHANE FOAM WITH LOW THERMAL CONDUCTIVITY

Document Type and Number:

Japanese Patent JP3660724

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To further reduce the thermal conductivity of a polyurethane foam without using a blowing agent which is toxic and/or harmful to the environment.
SOLUTION: An org. polyisocyanate and/or a modified org. polyisocyanate is reacted with at least one relatively high-molecular compd. having at least two active hydrogen atoms and, if necessary, a low-molecular chain extender and/or a low-molecular cross-linker in the presence of a blowing agent, a catalyst, and, if necessary, other additives to give a polyurethane foam which contains at least 32 wt.% arom. groups derived from the polyisocyanate, the active hydrogen compd., and the chain extender and/or the cross-linker.

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Inventors:

Katrin, Ebelt
Frank, Fechner
Holger, Seifert

Application Number:

JP27420895A

Publication Date:

June 15, 2005

Filing Date:

October 23, 1995

Export Citation:

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Assignee:

ELASTOGRAN GESELLSCHAFT MIT BESCHRAKTER HAFTUNG

International Classes:

C08G18/48; C08G18/50; C08G18/65; C08G18/66; C08J9/02; C08G18/76; C08J9/14; C08G101/00; (IPC1-7): C08G18/66; C08G18/76

Domestic Patent References:

JP6107761A
JP5097961A
JP4139209A
JP64036616A
JP3152160A
JP8104725A
JP7149867A

Attorney, Agent or Firm:

Satoshi Eto

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