| US4045418A (en) | 1975-01-28 | 1977-08-30 | Gulf Oil Corporation | Copolymers of D,L-lactide and epsilon caprolactone |
| US5760118A (en)* | 1988-08-08 | 1998-06-02 | Chronopol, Inc. | End use applications of biodegradable polymers |
| US5502158A (en)* | 1988-08-08 | 1996-03-26 | Ecopol, Llc | Degradable polymer composition |
| US5444113A (en)* | 1988-08-08 | 1995-08-22 | Ecopol, Llc | End use applications of biodegradable polymers |
| US6323307B1 (en) | 1988-08-08 | 2001-11-27 | Cargill Dow Polymers, Llc | Degradation control of environmentally degradable disposable materials |
| US5332839A (en)* | 1990-09-18 | 1994-07-26 | Biopak Technology, Ltd. | Catalytic production of lactide directly from lactic acid |
| US5319107A (en)* | 1990-09-18 | 1994-06-07 | Biopak Technology, Ltd. | Method to produce cyclic esters |
| US5274127A (en)* | 1990-09-18 | 1993-12-28 | Biopak Technology, Ltd. | Lactide production from dehydration of aqueous lactic acid feed |
| US5274073A (en)* | 1992-01-24 | 1993-12-28 | Cargill, Incorporated | Continuous process for manufacture of a purified lactide |
| US6326458B1 (en) | 1992-01-24 | 2001-12-04 | Cargill, Inc. | Continuous process for the manufacture of lactide and lactide polymers |
| US5357035A (en)* | 1992-01-24 | 1994-10-18 | Cargill, Incorporated | Continuous process for manufacture of lactide polymers with purification by distillation |
| US5258488A (en)* | 1992-01-24 | 1993-11-02 | Cargill, Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
| US5247059A (en)* | 1992-01-24 | 1993-09-21 | Cargill, Incorporated | Continuous process for the manufacture of a purified lactide from esters of lactic acid |
| US6277951B1 (en) | 1992-01-24 | 2001-08-21 | Cargill, Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
| US6005067A (en)* | 1992-01-24 | 1999-12-21 | Cargill Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
| US5247058A (en)* | 1992-01-24 | 1993-09-21 | Cargill, Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
| US5142023A (en)* | 1992-01-24 | 1992-08-25 | Cargill, Incorporated | Continuous process for manufacture of lactide polymers with controlled optical purity |
| US5675021A (en)* | 1992-03-19 | 1997-10-07 | Chronopol, Inc. | Method to produce and purify cyclic esters |
| US5750732A (en)* | 1992-03-19 | 1998-05-12 | Chronopol, Inc. | Method to produce cyclic esters |
| US5420304A (en)* | 1992-03-19 | 1995-05-30 | Biopak Technology, Ltd. | Method to produce cyclic esters |
| US5856523A (en)* | 1992-03-19 | 1999-01-05 | Chronopol, Inc. | Purifying cyclic esters by aqueous solvent extraction and further purification |
| US5525706A (en)* | 1992-10-02 | 1996-06-11 | Cargill, Incorporated | Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof |
| US6005068A (en)* | 1992-10-02 | 1999-12-21 | Cargill Incorporated | Melt-stable amorphous lactide polymer film and process for manufacture thereof |
| US5585191A (en)* | 1992-10-02 | 1996-12-17 | Cargill, Incorporated | Melt-stable amorphous lactide polymer film and process for manufacture thereof |
| US5773562A (en)* | 1992-10-02 | 1998-06-30 | Cargill, Incorporated | Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof |
| US5798436A (en)* | 1992-10-02 | 1998-08-25 | Cargill, Incorporated | Melt-stable amorphous lactide polymer film and process for manufacture thereof |
| US5807973A (en)* | 1992-10-02 | 1998-09-15 | Cargill, Incorporated | Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof |
| US5852166A (en)* | 1992-10-02 | 1998-12-22 | Cargill, Incorporated | Paper having a melt-stable lactide polymer coating and process for manufacture thereof |
| US5536807A (en)* | 1992-10-02 | 1996-07-16 | Cargill, Incorporated | Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof |
| US5484881A (en)* | 1992-10-02 | 1996-01-16 | Cargill, Inc. | Melt-stable amorphous lactide polymer film and process for manufacturing thereof |
| US6355772B1 (en) | 1992-10-02 | 2002-03-12 | Cargill, Incorporated | Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof |
| US6093791A (en)* | 1992-10-02 | 2000-07-25 | Cargill, Incorporated | Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof |
| US6111060A (en)* | 1992-10-02 | 2000-08-29 | Cargill, Incorporated | Melt-stable lactide polymer nonwoven fabric and process for manufacture thereof |
| US6121410A (en)* | 1992-10-02 | 2000-09-19 | Cargill, Incorporated | Melt-stable semi-crystalline lactide polymer film and process for manufacture thereof |
| US6207792B1 (en) | 1992-10-02 | 2001-03-27 | Cargill, Incorporated | Melt-stable amorphous lactide polymer film and process for manufacture thereof |
| US5475080A (en)* | 1992-10-02 | 1995-12-12 | Cargill, Incorporated | Paper having a melt-stable lactide polymer coating and process for manufacture thereof |
| US5665474A (en)* | 1992-10-02 | 1997-09-09 | Cargill, Incorporated | Paper having a melt-stable lactide polymer coating and process for manufacture thereof |
| US5338822A (en)* | 1992-10-02 | 1994-08-16 | Cargill, Incorporated | Melt-stable lactide polymer composition and process for manufacture thereof |
| US5686630A (en)* | 1993-09-29 | 1997-11-11 | Chronopol, Inc. | Purifying cyclic esters by aqueous solvent extraction |
| US20140363598A1 (en)* | 2012-03-07 | 2014-12-11 | Huhtamäki Oyj | Essentially biobased, thermoformable composition and containers formed thereof |
| US10626271B2 (en)* | 2012-03-07 | 2020-04-21 | Huhtamäki Oyj | Essentially biobased, thermoformable composition and containers formed thereof |