100603 ⎘
Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers; Polyurethanes from polyesters
METHOD FOR PREPARING THERMOSETTING MIDSOLES USING FOAMED PARTICLES
#2IMIDE-CONTAINING POLYOLS, METHODS FOR MAKING IMIDE-CONTAINING POLYOLS AND METHODS FOR USING IMIDE-CONTAINING POLYOLS
#3URETHANE RESIN COMPOSITION AND BUILDING INSULATION METHOD
#4PRODUCTION OF POLYURETHANE FOAM
#5AQUEOUS MOISTURE-PERMEABLE WATERPROOF COMPOSITION
#6IMIDE-CONTAINING POLYESTER POLYOLS AND INTUMESCENT RIGID FOAMS
#7PRODUCTION OF POLYURETHANE FOAM
#8FLOORING PANELS INCORPORATING SUSTAINABLE THERMOPLASTIC POLYURETHANE MATERIALS
#9STORAGE-STABLE COATED PARTICLES AND THEIR PREPARATION
#10Thermoplastic Polyurethane and Uses Thereof
#11Method for packaging and transporting compressed foam sponges at up to 20 times higher density than normal without losing shape or size after returning the sponge to its original form.
#12PRODUCTION OF POLYURETHANE OR POLYISOCYANURATE FOAM
#13PRODUCTION OF POLYURETHANE OR POLYISOCYANURATE FOAM
#14PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS
#15ARTICLES INCLUDING COATED FIBERS AND METHODS OF MAKING COATED FIBERS AND ARTICLES
#16AQUEOUS POLYURETHANE DISPERSION
#17ARTICLES AND METHODS OF MAKING ARTICLES INCLUDING A COATING
#18POLYURETHANE WASTE BLENDING USING DYNAMIC URETHANE EXCHANGE
#19BIAXIALLY ORIENTED POLYESTER FILM
#20POLYISOCYANURATE FOAM-FORMING COMPOSITIONS, POLYISOCYANURATE FOAMS, INSULATED ASSEMBLIES, AND METHODS OF MAKING THEREOF
#21Polyisocyanurate Foams with Flame Retardant Properties and Process for Making the Same
#22THERMALLY CURABLE FILM-FORMING COMPOSITIONS PROVIDING BENEFITS IN APPEARANCE AND SAG CONTROL PERFORMANCE
#23AQUEOUS POLYURETHANE COMPOSITION, HEAT-RESISTANT COATING AGENT, FIRST LAMINATE, BAG, SECOND LAMINATE, METHOD FOR PRODUCING FIRST LAMINATE, AND METHOD FOR PRODUCING SECOND LAMINATE
#24IMIDE-CONTAINING POLYOLS, METHOD FOR MAKING IMIDE-CONTAINING POLYOLS AND METHOD FOR USING THE IMIDE POLYOLS
#25SHEET MOLDING COMPOUND AND METHOD FOR MANUFACTURING SAME
#26SEMI-AROMATIC POLYESTER, AND PREPARATION METHOD THEREFOR AND USE THEREOF
#27ISOCYANATE-REACTIVE COMPOSITIONS, RIGID POLYURETHANE FOAMS AND METHODS FOR THEIR PRODUCTION
#28FILMS COMPRISING ALIPHATIC THERMOPLASTIC POLYURETHANES THAT ARE USEFUL AS AUTO WRAPS
#29SURFACTANT-FREE FILLED POLYURETHANE FOAM AND METHOD OF MAKING SAME
#30COATED FILM
#31PROCESS FOR PRODUCING IMPROVED RIGID POLYISOCYANURATE FOAMS BASED ON AROMATIC POLYESTER POLYOLS AND ETHYLENE OXIDE-BASED POLYETHER POLYOLS
#32PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS
#33METHODS OF FORMING POLYOL PREMIXES AND FOAMABLE COMPOSITIONS AND FOAMS FORMED THEREFROM
#34FLAME RETARDANT RIGID HIGH DENSITY POLYURETHANE FOAM
#35FILMS COMPRISING BLENDS OF POLYURETHANES AND COPOLYESTER ELASTOMERS USEFUL AS AUTO WRAPS
#36POLYOL AND FOAM MADE THEREFROM
#37Modified lignin products for rigid foams
#38COMPOSITION FOR PREPARING FOAM, METHODS ASSOCIATED THEREWITH, AND FOAM FORMED THEREFROM
#39HEAT LABILE FOAM-IN-PLACE POLYURETHANE FOAM
#40BUILDING MATERIAL
#41PANEL, COMPOSITION FOR IMPREGNATING OR COATING A PANEL, AND A METHOD FOR PRODUCING A PANEL
#42Vibrating diaphragm of sound-producing apparatus and sound-producing apparatus
#43IMPROVED FOAM FORMULATION
#44AROMATIC POLYESTER POLYOL COMPOUND
#45MIXING SYSTEM
#46Compositions and foam compositions containing composite particles, articles, composite particles, and methods
#47Method of Making Articles from Recyclable Fabrics
#48Nucleating Agents for PIR Foams
#49LIQUID COMPOSITION SET, POROUS RESIN MANUFACTURING APPARATUS, AND POROUS RESIN MANUFACTURING METHOD
#50HCFO-containing isocyanate-reactive compositions, related foam-forming compositions and flame retardant PUR-PIR foams
#51Expanded foam solution and thermosetting expanded foam having excellent flame retardancy using the same
#52Curable Compositions and Articles Prepared Therefrom
#53RADIO WAVE ABSORBER AND PASTE FOR FORMING RADIO WAVE ABSORBER
#54Articles and methods of making articles including a coating
#55Articles including coated fibers and methods of making coated fibers and articles
#56Viscoelastic Elastomeric Polyurethane Foams, Process for Preparing Them and Use Thereof
#57LOW DENSITY THERMOSETTING FOAMS HAVING IMPROVED PROPERTIES
#58TOPCOAT COMPOSITIONS AND FILMS FOR TOUCHABLE SURFACES
#59REACTIVE FLAME RETARDANTS FOR FLEXIBLE POLYURETHANE FOAMS
#60METHOD OF MANUFACTURING FILLED POLYURETHANE PARTICLES
#61IMPROVED RIGID PUR AND PIR FOAM
#62GELCOAT COMPOSITIONS FOR SANITISED WATER POOLS
#63IMAGE SENSOR WITH IN-PIXEL BACKGROUND SUBTRACTION AND MOTION DETECTION
#64Open Cell Polyurethane Flame-Retardant Foams
#65Multilayer coating for covering vehicle body parts
#66Photo-curable compositions
#67Thermally conductive nanomaterial coatings on flexible foam or fabrics
#68METHOD FOR PRODUCING THERMOPLASTIC POLYURETHANES
#69WATER SOLUBLE POLYMER BLEND COMPOSITIONS
#70THERMOPLASTIC POLYURETHANE RESIN SUITABLE FOR A LAMINATING PROCESS AND METHOD FOR PRODUCING THE SAME
#71Polyol pre-mixes having improved shelf life
#72PREPREG AND MOLDED PRODUCT
#73Spray foam electromagnetic interference absorber
#74Preparation of a Coating, Adhesive, Film or Sheet
#75Modified lignin products for rigid foams
#76Articles including coated fibers and methods of making coated fibers and articles
#77IMIDE-CONTAINING POLYESTER POLYOLS AND INTUMESCENT RIGID FOAMS
#78HCFO-CONTAINING ISOCYANATE-REACTIVE COMPOSITIONS, RELATED FOAM-FORMING COMPOSITIONS AND POLYURETHANE FOAMS
#79Composition and cured product of same
#80HCFO-containing isocyanate-reactive compositions, related foam-forming compositions and flame retardant PUR-PIR foams
#81ISOCYANATE-REACTIVE COMPOSITION
#82IN-SITU FORMATION OF LOW DENSITY THERMOPLASTIC POLYURETHANE FLEXIBLE FOAMS
#83IMPROVED THERMOPLASTIC POLYURETHANE
#84HIGH THROUGHPUT MANUFACTURE OF POLYURETHANE FOAM LAYERS
#85THERMOPLASTIC URETHANES CONTAINING COMPOSITIONS
#86METHOD FOR PRODUCING FLAMEPROOF PUR/PIR RIGID FOAMS
#87PHASE TRANSFER ACTIVE TRIMERIZATION CATALYST SALTS
#88HIGH PERFORMANCE URETHANE FOAM
#89AQUEOUS POLYURETHANE DISPERSION
#90Thermally conductive nanomaterial coatings on flexible foam or fabrics
#91URETHANE EXCHANGE CATALYSTS AND METHODS FOR REPROCESSING CROSS-LINKED POLYURETHANE FOAMS
#92Moulded Polyurethane Hydrogels
#93YELLOWING-RESISTANT THERMOPLASTIC POLYURETHANE FOAM MATERIAL AND PREPARATION METHOD THEREOF
#94POLY(GLYCEROL SEBACATE) URETHANE ELASTOMERIC LEAFLET FOR HEART VALVE REPLACEMENT
#95Compositions and foam compositions containing composite particles, articles, composite particles, and methods
#96METHODS FOR PRODUCING FLAME-RETARDANT PUR/PIR FOAM MATERIALS
#97Surfactant-free filled polyurethane foam and method of making same
#98A LIQUID COMPOSITION FOR A FIBER REINFORCED PLASTIC INTERMEDIATE BASE MATERIAL, A FIBER REINFORCED PLASTIC INTERMEDIATE BASE MATERIAL, AND A METHOD OF PRODUCING THE FIBER REINFORCED PLASTIC INTERMEDIATE BASE MATERIAL
#99URETHANE RESIN COMPOSITION AND BUILDING INSULATION METHOD
#100Aromatic polyester polyether polyurethane panels and useful materials comprising same
#101METHOD FOR PRODUCING A MIXTURE COMPRISING AT LEAST ONE COMPOUND HAVING AT LEAST TWO HYDROXY AND/OR AMINO GROUPS AND USE THEREOF FOR PRODUCING A POLYMER
#102Flame-retardant polyurethane foam
#103RESIN LAYER, OPTICAL FILM, AND IMAGE DISPLAY DEVICE
#104Methods of forming polyol premixes and foamable compositions and foams formed therefrom
#105Expanded foam solution and thermosetting expanded foam having excellent flame retardancy using the same
#106Isocyanate reactive compositions
#107FLAME RETARDANT COMPOSITION FOR POLYURETHANE FOAM AND FLAME-RETARDED POLYURETHANE FOAM CONTAINING THE SAME
#108Polyurethane elastomers, bio-additive compositions
#109Production of polyurethane foam
#110Process for producing isocyanate-based foam construction boards
#111PRODUCTION OF RIGID POLYURETHANE FOAM
#112A RIGID POLYURETHANE FOAM FORMULATION AND FOAM MADE THEREFROM
#113Oriented biodegradable polyurethanes
#114THERMOPLASTIC POLYURETHANE RESIN ELASTOMERS
#115Surface protection film for flexible display and method of producing thereof
#116RIGID POLYISOCYANURATE AND POLYURETHANE FOAMS AND METHODS FOR PREPARING THE SAME
#117Polyurethane-foamed formulations and noise insulations with foams based thereon
#118Gels comprising a hydrophobic material
#119MIXED LIQUID AGENT, POLYURETHANE COMPOSITION, POLYURETHANE FOAM, SPRAY CAN, AND MIXING SYSTEM
#120AZEOTROPICALLY-MODIFIED BLOWING AGENTS FOR FORMING FOAMS
#121RIGID POLYISOCYANURATE AND POLYURETHANE FOAMS AND METHODS FOR PREPARING THE SAME
#122PRODUCTION OF POLYURETHANE FOAM
#123Polyol composition and polyurethane foam
#124Rigid polyurethane foam formulation and foam made therefrom
#125Method for producing a thermodeformable polymer/fiber composite
#126Phosphinate as flame-proofing additive for PUR/PIR hard foam material
#127Polyurethane product with sulfur-containing polyester polyol
#128Methods of using thermoplastic polyurethanes in fused deposition modeling and systems and articles thereof
#129HYBRID COPOLYMER COMPOSITION FOR PROTECTING FOLDABLE DISPLAYS
#130Insulation performance foams
#131Flame-retardant polyurethane foam
#132EXPANDED FOAM SOLUTION AND THERMOSETTING EXPANDED FOAM HAVING EXCELLENT FLAME RETARDANCY USING THE SAME
#133ENVIRONMENTALLY FRIENDLY DRIVEN POLYURETHANE SPRAY FOAM SYSTEMS
#134Expanding polyurethane foam and methods and systems for using same
#135Method for producing expanded thermoplastic polymers with controlled density
#136Articles and methods of making articles including a coating
#137Highly flame-retardant organically modified nanoparticle, organic-inorganic composite synthetic resin containing the same and processed product thereof
#138Method for manufacturing both organic-inorganic composite synthetic resin containing highly flame-retardant organically modified nanoparticle and processed product thereof
#139POLYURETHANE-UREA DISPERSIONS BASED ON POLYCARBONATE-POLYOLS AS COATING COMPOSITIONS
#140Anaerobically curable compositions comprising a metallacene and acetyl phenyl hydrazine curing system
#141FLAME-RESISTANT POLYURETHANE FOAM MATERIAL
#142UV-curable resin composition enabling thermoforming and replica film of real material comprising same
#143Sprayable marine foam
#144Polyurethane layer for a light directing article
#145Polyurethane coated heat-shrinkable film
#146Rigid polyurethane foam containing reactive flame retardant
#147Polyurethane Foam using HFO Propellants
#148Dynamic networks for recycling thermoset polymers
#149Immobilisation device
#150Self-supporting photochromic polyurethane film, method of manufacturing the film, article comprising said film
#151Multilayer Coating for Covering Vehicle Body Parts
#152Articles including coated fibers and methods of making coated fibers and articles
#153Conductive composition for molded film, molded film, molded article, and method for production thereof
#154Shape memory polymers
#155Thermally curable film-forming compositions providing benefits in appearance and sag control performance
#156Solid-solid phase-change materials
#157Tissue repair laminates
#158Thermoplastic polyurethane
#159FLAME RETARDANT SEMI-RIGID POLYURETHANE FOAM
#160Surfactant-free filled polyurethane foam and method of making same
#161Organic amine salt foamer
#162Extruded polyurethane surface films
#163Surface protective film
#164Hybrid polyols based on natural oil polyols
#165Formulation composition for 3D additive manufacturing and processing method of the same
#166Foam insulation with enhanced fire and smoke performance
#167FLAME-RETARDED ELASTIC POLYURETHANE FOAM, ADHESIVE TAPE WITH A CARRIER MADE THEREFROM, AND PRODUCTION METHOD THEREFOR
#168Methods for formulating polyisocyanurate foam-forming compositions, related polyisocyanurate foam-forming compositions, and foams produced thereby
#169Process for Producing a Polyester Polyol, the Polyester Polyol Produced Thereby, and Use of the Polyester Polyol
#170Aromatic polyester polyether polyols, polyurethanes made therefrom and building materials comprising same
#171Electrically-conductive compositions and methods of using them with pipelines
#172POLYOL COMPOSITION FOR POLYURETHANE RESIN, POLYURETHANE-RESIN-FORMABLE COMPOSITION, AND COMPOSITE MATERIAL
#173Polyurethanes having reduced aldehyde emissions
#174Polyurethane or polyurethane-urea aqueous dispersion, preparation method therefor, and use thereof
#175Compositions comprising a fiber material and a thermoplastic binder
#176LOW-DAMPING POLYURETHANE ELASTOMER
#177Foaming thermoplastic polyurethane resin, producing method thereof, and molded article
#178IN-SITU FOAMING SYSTEM FOR FORMING FLAME-RETARDANT POLYURETHANE FOAM IN SITU
#179INTEGRATED PROCESS FOR TREATING RECYCLED STREAMS OF PET AND PTT
#180Flexible foam formulation
#181Thermoplastic polymer film with interpenetrating polymer network
#182Articles and methods of making articles including a coating
#183Articles including coated fibers and methods of making coated fibers and articles
#184Reactive flame retardants for flexible polyurethane foams
#185Method for controlling stress distribution in material and reading stress information
#186Polyurethane coatings for direct application to polyurethane pultrusion
#187Thermoplastic polyurethane foamed particles and method for manufacturing thermoplastic polyurethane foamed particle molded article
#188Foam insulation with enhanced fire and smoke performance
#189METHODS OF FORMING POLYOL PREMIXES AND FOAMABLE COMPOSITIONS AND FOAMS FORMED THEREFROM
#190Process for modifying polymer particles of an aqueous polymer dispersion, an aqueous polymer dispersion obtainable by said process, a redispersible polymer powder, and a composition comprising the redispersible polymer powder
#191Textiles having flame protection function
#192METHODS FOR DESIGNING POLYISOCYANURATE FOAM-FORMING COMPOSITIONS, RELATED POLYISOCYANURATE FOAM-FORMING COMPOSITIONS, AND FOAMS PRODUCED THEREBY
#193Polyurethane and polyisocyanurate foams and methods of producing the same
#194Reactive flame retardants for flexible polyurethane foams
#195Gels comprising a hydrophobic material
#196Cleaning blade
#197INTEGRATED PROCESS FOR TREATING RECYCLED PET AND PTT MATERIALS
#198Cosmetic supporting structure, method for preparing same, and cosmetic comprising same
#199Polymer composition comprising an impact modifier and method of making the same
#200PROTECTIVE MEMBER FOR COIL SPRINGS AND METHOD OF MANUFACTURING THE SAME
#201Process for producing isocyanate-based foam construction boards
#202PUR/PIR rigid foams made of polyaddition oligoesters
#203Reactive flame retardants for polyurethane and polyisocyanurate foams
#204Reactive flame retardants for polyurethane and polyisocyanurate foams
#205Dynamic networks for recycling thermoset polymers
#206Anti-microbial foams containing polymer-stabilized silver nanoparticles
#207Method for preparing active carbon-based special synthetic paper
#208Emulsifiable isocyanate composition and preparation method and use thereof
#209METHODS OF USING THERMOPLASTIC POLYURETHANES IN FUSED DEPOSITION MODELING AND SYSTEMS AND ARTICLES THEREOF
#210POLYESTER POLYOLS FROM RECYCLED POLYMERS AND WASTE STREAMS
#211Polyurethane layer for a light directing article
#212Polyurethane film for displays, and method for producing same
#213Thermoplastic materials having beneficial properties and processes for providing the same
#214Crash pad for vehicle and manufacturing method thereof
#215Low-viscosity phosphate polyols
#216Method for dyeing golf balls and dyed golf balls
#217Stable two component spray foam compositions containing hydrohaloolefin propellant or blowing agent
#218Molded polyurethane bodies with excellent flexibility at low temperature
#219Polyester polyol, polyurethane resin, and production processes therefor
#220Rigid polyurethane foam
#221Polyurethane foam-forming compositions, methods of making low density foams using such compositions, and foams formed therefrom
#222Catalysts for Producing Isocyanurates from Isocyanates
#223POLYURETHANE DISPERSIONS BASED ON RENEWABLE RAW MATERIALS
#224Fiber-plastics composites and composition for the production of these fiber-plastics composites
#225Flame-retardant urethane resin composition
#226Polymeric materials formed from polyhydroxyalkanoate materials
#227Integrated process for treating recycled streams of PET and PTT
#228Integrated process for treating recycled streams of PET and PTT
#229Azeotropic like composition containing 2-chloro-1,3,3,3-tetrafluoropropene and 1-chloro-3,3,3-trifluoropropene
#230FOAMING OF POLYISOCYANATE/ACTIVE HYDROGEN-CONTAINING COMPOUND REACTION PRODUCT
#231Compositions comprising a fiber material and a thermoplastic binder
#232Flame retardant nanocoated substrate
#233Methods for designing polyisocyanurate foam-forming compositions, related polyisocyanurate foam-forming compositions, and foams produced thereby
#234COMPOSITIONS AND USES OF CIS-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE
#235PROCESS FOR PRODUCING ISOCYANATE-BASED FOAM CONSTRUCTION BOARDS
#236Polyurethane prepregs with controllable tack
#237Fiber reinforced thermoplastic composites and methods of making
#238Pyrrolidine-based catalysts for use in polyurethane materials
#239POLYOL PRE-MIXES HAVING IMPROVED SHELF LIFE
#240Hybrid component part comprising a local stiffening composed of a two-stage-crosslinked polyurethane-based fibre composite material
#241Polyurethane and polyisocyanurate rigid foams suitable for roofing insulation
#242Composite fibre components and the production thereof
#243Method for coating a flexible support with a silicone composition
#244Polyester adhesive composition and adhesive sheet
#245SILICON COMPOUND, RESIN COMPOSITION FOR COATING AGENT, MOLDED ARTICLE, AND IMAGE DISPLAY DEVICE
#246Stabilized plasticizers for thermoplastic polyurethane
#247Ultra low density biodegradable shape memory polymer foams with tunable physical properties
#248Photochromic polyurethane laminate
#249Photochromic polyurethane laminate
#250Photochromic polyurethane laminate
#251Roofing systems and roofing boards with non-halogenated fire retardant
#252Polyether urethane deicer boots
#253METHODS OF USING THERMOPLASTIC POLYURETHANES IN FUSED DEPOSITION MODELING AND SYSTEMS AND ARTICLES THEREOF
#254Composition suitable for production of rigid polyurethane or polyisocyanurate foams
#255Methods of Making Triacylglycerol Polyols from Fractions of Metathesized Natural Oils and Uses Thereof
#256TRANSPARENT COMPOSITE FILM HAVING A LOW COEFFICIENT OF THERMAL EXPANSION
#257Production of polyisocyanurate foam panels
#258Method for producing blade member
#259Method for producing expanded thermoplastic elastomer particles
#260Method for preparing bilayer scaffold through single process and method for regenerating tissue using bilayer scaffold obtained by preparing method
#261In-situ foaming system for forming flame-retardant polyurethane foam in situ
#262Process for production of expanded thermoplastic elastomer
#263Integrated process for treating recycled PET and PTT materials
#264Integrated process for treating recycled streams of PET and PTT
#265Integrated process for treating recycled streams of PET and PTT
#266FOAM PRODUCTS AND METHODS OF PRODUCING THE SAME
#267Polyester polyol and polyol blends and rigid polyurethane foam manufacturing
#268Polyurethane prepreg and composite fiber element produced therefrom
#269Fiber reinforced thermoplastic composites and methods of making
#270URETHANES, POLYMERS THEREOF, COATING COMPOSITIONS AND THEIR PRODUCTION FROM CYCLIC CARBONATES
#271Rigid polyurethane foam and system and method for making the same
#272Rigid polyurethane foam and system and method for making the same
#273Gas-barrier packaging material
#274Polyester polyols from recycled polymers and waste streams
#275Low-scorch flame-retardant polyurethane foams
#276Anti-microbial foams containing polymer-stabilized silver nanoparticles
#277Polyester polyols with long-chain polyether polyol building blocks and use thereof in rigid pur/pir foams
#278Polyurethanes, articles and coatings prepared therefrom and methods of making the same
#279Composite semifinished products and mouldings produced therefrom and directly produced mouldings based on hydroxy-functionalized (meth)acrylates and uretdiones which are crosslinked by means of radiation to give thermosets
#280COMPOSITION FOR MANUFACTURING AN ELASTIC TANNIN BASED FOAM MATERIAL, AND PROCESS THEREOF
#281Roofing systems and roofing boards with non-halogenated fire retardant
#282FLAME RETARDANT FOAM FORMULATIONS
#283Catalyst compositions and methods for making foam
#284RIGID POLYURETHANE FOAMS WITH REDUCED SHRINKAGE
#285Radiation cured membranes derived from polymers that are co-reactive with azide crosslinking agent(s)
#286Polyester polyol, composition for polyurethane, composition for polyurethane foam, polyurethane resin, and polyurethane foam
#287CRYOGENIC INSULATION FOAM
#288PRODUCTION OF POLYISOCYANURATE FOAM PANELS
#289Photochromic polyurethane laminate
#290Storage-stable polyurethane-prepregs and fibre composite components produced therefrom
#291METHODS FOR MAKING FOAMS USING BLOWING AGENTS COMPRISING UNSATURATED FLUOROCARBONS
#292Preparation of porous organic polymeric films
#293METHOD FOR PRODUCING POLYURETHANE FOAM
#294Porous organic polymeric films and preparation
#295Polyester polyols containing diels-alder or ene adducts
#296Polyisocyanurate foams containing dispersed non-porous silica particles
#297Method for dyeing golf balls and dyed golf balls
#298Insulation moulding and method for its manufacture
#299Polyurethane film and processed film produced using same
#300Packaging film including a lactide copolymer