NATUREWORKS LLC

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Technologies

Intl Class Technology # of Patents/ App Rank in Class
 
 
 
C07D HETEROCYCLIC COMPOUNDS 14135
 
 
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1387
 
 
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 546
 
 
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 4115
 
 
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 391
 
 
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM3148
 
 
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 377
 
 
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 3105
 
 
 
D01D MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS316
 
 
 
D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS226

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2014/0031,566 RECOVERY OF LACTIC ACID VALUES FROM A MESO-LACTIDE STREAMSep 27, 13Jan 30, 14[C07D]
2012/0095,240 RECOVERY OF LACTIC ACID VALUES FROM A MESO-LACTIDE STREAMMar 12, 10Apr 19, 12[C07D]
2011/0306,749 METHODS FOR PRODUCING LACTIDE WITH RECYCLE OF MESO-LACTIDEMar 12, 10Dec 15, 11[C08G]
2011/0039,962 Extruded foams made with polylactides that have high molecular weights and high intrinsic viscositiesApr 24, 09Feb 17, 11[C08J]
2010/0308,494 Methods for making polylactic acid stereocomplex fibersSep 26, 08Dec 09, 10[B29C]
2010/0249,331 METHOD FOR STABILIZING POLYMERS CONTAINING REPEATING LACTIC ACID UNITS, AND STABILIZED POLYMERS SO MADEMay 12, 08Sep 30, 10[C08L]
2010/0221,471 Polylactide stereocomplex conjugate fibersSep 26, 08Sep 02, 10[D01D, D01F, C08L]
2010/0216,334 Electrical Service DeviceNov 29, 06Aug 26, 10[H01R]
2010/0197,884 METHOD FOR MAKING COPOLYMERS OF LACTIDE AND A 1:4-3:6 DIANHYDROHEXITOLAug 07, 08Aug 05, 10[C08G]
2010/0152,415 POLYLACTIC ACID STEREOCOMPLEX COMPOSITIONS AND METHODS FOR MAKING AND USING SAMEOct 24, 07Jun 17, 10[C08G, B29C]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8,722,754 Extruded foams made with polylactides that have high molecular weights and high intrinsic viscositiesApr 24, 09May 13, 14[C08J]
8,674,056 Methods for producing lactide with recycle of meso-lactideMar 12, 10Mar 18, 14[C08G]
8,552,209 Recovery of lactic acid values from a meso-lactide streamMar 12, 10Oct 08, 13[C07D]
8,377,353 Process of making conjugate fibersSep 26, 08Feb 19, 13[D01D, D01F]
8,268,954 Method for making copolymers of lactide and a 1:4-3:6 dianhydrohexitolAug 07, 08Sep 18, 12[C08G]
8,182,725 Methods for making polylactic acid stereocomplex fibersSep 26, 08May 22, 12[D01D, D02J, D02G]
8,183,321 Impact modified polylactide resinsOct 18, 07May 22, 12[C08G, C08L]
8,114,939 Method for stabilizing polymers containing repeating lactic acid units, and stabilized polymers so madeMay 12, 08Feb 14, 12[C08G]
8,013,031 Extruded polylactide foams blown with carbon dioxideMar 24, 05Sep 06, 11[C08J]
7,670,545 Method for producing semicrystalline polylactic acid articlesJun 27, 08Mar 02, 10[B29C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
2010/0216,334 Electrical Service DeviceNov 29, 06Aug 26, 10[H01R]
2007/0187,876 Injection stretch blow molding process using polylactide resinsJun 23, 05Aug 16, 07[B29C]
6,740,731 Degradation control of environmentally degradable disposable materialsFeb 12, 01May 25, 04[C08G, C08K]
6,323,307 Degradation control of environmentally degradable disposable materialsAug 16, 95Nov 27, 01[C08G, C08L]
6,025,458 Degradable polydioxaneone-based materialsJun 15, 98Feb 15, 00[C08G, C07D]
5,639,466 Method for packaging foodstuffsFeb 24, 95Jun 17, 97[A01N]
5,252,642 Degradable impact modified polyactic acidSep 06, 90Oct 12, 93[C08L]
5,180,765 Biodegradable packaging thermoplastics from lactidesSep 06, 90Jan 19, 93[C08K]
5,138,074 Continuous catalyzed vapor phase dimeric cyclic ester processJun 28, 90Aug 11, 92[C07D]
5,117,008 Solvent scrubbing recovery of lactide and other dimeric cyclic estersOct 23, 90May 26, 92[C07D]
5,091,544 Process for rapid conversion of oligomers to cyclic estersSep 21, 90Feb 25, 92[C07D]
5,076,983 Polyhydroxy acid filmsJul 16, 90Dec 31, 91[B29C]
5,028,667 Yttrium and rare earth compounds catalyzed lactone polymerizationSep 29, 89Jul 02, 91[C08G]

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