Yasumasa Ogawa

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Shimizu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Blowing agent composition for preparing a rigid polyurethane foam
- Patent number 5,035,833
- Issue date Jul 30, 1991
- Du Pont-Mitsui Fluorochemicals Co., Ltd.
- Motosuke Ogawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...