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Process for producing polytrimethylene terephthalate (PTT) |
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Process of producing polytrimethylene terephthalate (PTT) |
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2003-01-28 |
| 6326456 |
Process of producing polytrimethylene terephthalate (PTT) |
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2001-12-04 |
| 6277947 |
Process of producing polytrimethylene terephthalate (PTT) |
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2001-08-21 |
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Method for removal of metal alkoxide compounds from liquid hydrocarbon |
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1999-02-02 |
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1995-06-27 |
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Process for the preparation of secondary alkyl sulfate-containing surfactant compositions |
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1994-09-20 |
| 5242549 |
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1993-09-07 |
