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Integral skin rigid polyurethane structural foam |
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1993-11-23 |
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Rigid polyurethane foams containing lithium salts for energy absorbing applications |
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1993-11-02 |
| 5258418 |
Low density, water-blown, rigid polyurethane foams having good physical properties and improved initial surface friability |
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1993-11-02 |
| 5248703 |
Rigid polyurethane foams containing lithium salts for energy absorbing applications |
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1988-10-25 |
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Method for the preparation of styrene polymer foam |
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1983-12-20 |
