Title:
COMPOSITION CAPABLE OF FORMING URETHANE ELASTOMER
Document Type and Number:
WIPO Patent Application WO/2008/065733
Kind Code:
A1
Abstract:
[PROBLEMS] To provide a novel composition capable of forming a thermocurable urethane elastomer which has high hardness that is required in engineering applications such as a structural component or member constituting an industrial machine, has good heat resistance properties (E'100/E'200) and is highly safe. [MEANS FOR SOLVING PROBLEMS] An MDI prepolymer having a low viscosity and mild reactivity can be synthesized by using diphenylmethane diisocyanate containing 2,4-MDI at a ratio of 95% or more and polyol as the main ingredients. When an aromatic diamine containing no chlorine is used as a curing agent, it becomes possible to produce a cast elastomer which is environmentally friendly and has excellent mechanical properties and heat resistance.
Inventors:
KOKUBUN TETSUYA (JP)
NAKASHIMA YUUHEI (JP)
NAKASHIMA YUUHEI (JP)
Application Number:
PCT/JP2007/000886
Publication Date:
June 05, 2008
Filing Date:
August 20, 2007
Export Citation:
Assignee:
NIPPON POLYURETHANE KOGYO KK (JP)
KOKUBUN TETSUYA (JP)
NAKASHIMA YUUHEI (JP)
KOKUBUN TETSUYA (JP)
NAKASHIMA YUUHEI (JP)
International Classes:
C08G18/10; C08G18/65; F16C13/00
Foreign References:
| JPH10237153A | 1998-09-08 | |||
| JPH04222812A | 1992-08-12 | |||
| JPH1045865A | 1998-02-17 | |||
| JPH05247165A | 1993-09-24 | |||
| JPH10195160A | 1998-07-28 | |||
| JP2005505664A | 2005-02-24 | |||
| JP2006274264A | 2006-10-12 |
Other References:
IWATA K.: "Polyurethane Jushi Handbook", 1987, pages: 340 - 343, XP003022668
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