Related by context. All words. (Click for frequent words.) 74 emulsion polymers 72 styrenic 71 thermosetting resins 71 acrylic esters 71 Styrenic 71 thermoplastic resins 70 PET resins 70 polypropylene resin 70 styrenic resins 70 specialty polymers 69 unsaturated polyester 69 Hyperlast 69 styrenic polymers 69 methyl methacrylate MMA 69 latexes 69 Low Density Polyethylene LDPE 69 coating resins 69 fluorochemical 68 PVOH 68 butyl acrylate 68 TDI toluene diisocyanate 68 unsaturated polyester resins 68 synthetic rubbers 68 Polypropylene PP 68 Polyol 68 coatings resins 68 thermoplastic polyurethane 67 synthetic latex 67 polyethylene resins 67 polyethylene polypropylene 67 emulsion polymer 67 terephthalate packaging 67 polypropylene resins 67 Polystyrene PS 67 adipic acid 67 BASF Ludwigshafen Germany 67 caprolactam 67 vinyl ester resins 67 Low density polyethylene 67 methylamines 67 Masterbatches 67 polymer dispersions 67 styrene butadiene 67 gelcoats 66 methylene diphenyl diisocyanate MDI 66 maleic anhydride 66 polymer intermediates 66 cellulose ethers 66 ethylene amines 66 molding compounds 66 oxo derivatives 66 ethylene propylene 66 UHMW PE 66 polypropylene compounds 66 vinyl acetate ethylene 66 acrylic polymers 66 polyamides 66 Polycarbonates 66 expandable polystyrene 66 pyrogenic silica 66 nylon #,# 66 Polyethylene PE 66 olefins polyolefins 66 acrylates 66 polybutylene terephthalate 66 polyolefin 65 PURAC 65 ethylene copolymers 65 coatings inks 65 acetate tow 65 acrylonitrile butadiene 65 PolyTHF 65 Isocyanates 65 lubricant additives 65 expandable polystyrene EPS 65 polyethylene PE 65 ethylene copolymer 65 superabsorbent polymers 65 nylon intermediates 65 Solvay Solexis 65 polymer emulsions 65 Polyvinyl chloride 65 phenol acetone 65 powder coatings 65 PET polymers 65 ethylene oxide ethylene glycol 65 polymer additives 65 Revertex 65 specialty monomers 65 composite resins 65 polyvinyl chloride PVC resin 65 polyether polyols 65 polymer emulsion 65 fluorochemicals 65 polyvinylchloride PVC 65 thermoplastic polyurethanes 65 adhesives paints 65 specialty surfactants 65 thermoset resins 65 Elastogran 65 plastics fibers 65 Ethylene Glycol 65 Altuglas International 65 bicomponent 65 DSM Composite Resins 65 plastics additives 65 glycols 65 prepolymers 64 thermoplastic elastomers 64 dispersible polymer powders 64 ammonia methanol 64 Functional Chemicals 64 textile dyes 64 terephthalate 64 Polyolefin 64 DSM Elastomers 64 polychloroprene 64 specialty elastomer 64 alkyd resins 64 PX PTA 64 precipitated silica 64 Cereplast bio 64 Perstorp 64 para aramid 64 Plastic Additives 64 flame retardants antioxidants 64 Ningbo Wanhua 64 paints sealants 64 acetyl chemicals 64 thermoset composites 64 butadiene rubber 64 resins adhesives 64 butanediol 64 Teknor Apex 64 ethylene polyethylene 64 halobutyl rubber 64 Synthetic rubber 64 paints coatings adhesives 64 polyurethanes 64 vinyl resins 64 Menzolit 64 polycarbonate resins 64 reinforced plastics 64 Altana Chemie 64 Methacrylate 64 petrochemical feedstocks 64 polyurethane foams 64 Rhodia Polyamide 63 phenolic resins 63 Polyolefins 63 vinyl acetate monomer VAM 63 polyester resins alkyd resins 63 Yantai Wanhua 63 fatty alcohols 63 coil coatings 63 cellulosics 63 vinyl chloride monomer 63 plastic resins 63 sealants paints 63 thermoformed packaging 63 caustic soda chlorine 63 wax emulsions 63 Speciality chemicals 63 Sarlink 63 Solvay Advanced 63 epoxy vinyl ester 63 PVC additives 63 Ethylene Vinyl Acetate EVA 63 Inorganics 63 acrylic acid 63 Geismar Louisiana 63 Propylene Oxide 63 polystyrene PS 63 insoluble sulfur 63 Uhde Inventa Fischer 63 PA6 63 superabsorbents 63 powder coating resins 63 styrene acrylonitrile SAN 63 Thermoplastic Polyurethane 63 EPDM rubber 63 adhesive resins 63 Saltigo 63 vinyl chloride monomer VCM 63 vinyl acetate monomer 63 Lustran 63 Fluorochemicals 63 fluoropolymer coatings 63 pharmaceutical excipients 63 synthetic resins 63 PVC resins 63 Brazil Braskem SA 63 vinyl esters 63 fluoropolymers 63 defoamers 63 concrete admixtures 63 Bayer MaterialScience AG 63 lubricant additive 63 Polyols 63 vinyl acetate ethylene VAE 63 polyolefins 63 Emulsion Polymers 63 polyethylene plastics 63 paints coatings 63 bonded abrasives 63 Makrolon polycarbonate 63 Polyurethanes 62 TiO2 pigments 62 Schwarzheide Germany 62 monoethylene glycol 62 thermoplastic elastomers TPEs 62 Thermoset 62 #,# propanediol PDO 62 Ingeo ™ fibers 62 polyester resins 62 Paraxylene 62 ethyleneamines 62 BYK Chemie 62 resins 62 oleo chemicals 62 Vinyl Acetate 62 Foamed 62 steelcord 62 BOPP films 62 gallium arsenide indium phosphide 62 polymer modifiers 62 UMG Si 62 Clariant Masterbatches 62 polyolefin resins 62 polyphenylsulfone 62 Rhodia SA France 62 Moldflow NASDAQ MFLO 62 coatings adhesives 62 Acrylic Monomers 62 halobutyl 62 polyvinyl chloride resin 62 Advanced Engineered Materials 62 homopolymers 62 Mirel bioplastic 62 WEBBOLT Petrochemicals 62 Songwon 62 specialty amines 62 Estane 62 nylon yarn 62 Vinyl Ester 62 phthalic anhydride 62 Specialty Resins 62 engineering thermoplastics 62 thermoplastic resin 62 FMC BioPolymer 62 nonwoven fabrics 62 thermosetting 62 unsaturated polyester resin 62 HITOX 62 coated abrasives 62 plastomers 62 polyester yarns 62 styrene acrylic 62 PP polypropylene 62 Performance Polymers 62 PEEK polymer 62 VCM PVC 62 propylene oxide PO 62 thermoplastic compounds 62 linear alkyl benzene 62 silicas 62 WACKER POLYMERS 62 BOPP film 62 cellulose ether 62 sulfone polymers 62 Propex Fabrics 62 polyols 62 Polyplastics 62 terephthalic acid 62 Acetic acid 62 olefin 62 viscose filament 62 Petroleum Additives 62 Acrylic acid 62 styrene butadiene rubber 62 BorougeBorouge 62 cellulose acetate fibers 62 styrene monomer 62 ARCEL 62 super absorbent polymers 62 Bayer Polymers 62 Polymer Chemicals 62 Crystex 62 foamed plastics 61 DSM Resins 61 Fortrel R 61 Diolen 61 lyocell 61 diisocyanate MDI 61 organic peroxides 61 styrene butadiene latex 61 Chlor alkali 61 Adipic acid 61 UV stabilizers 61 acetyls 61 Acrylonitrile 61 toluene diisocyanate TDI 61 rotomolding 61 sealants adhesives 61 geosynthetics 61 polymer resins 61 styrene polystyrene 61 non wovens 61 ethoxylates 61 styrenics 61 Lenzing Group 61 nano composites 61 mono ethylene glycol MEG 61 polyethylenes 61 flocculants 61 Dow Epoxy 61 matrix composites 61 polyurethane PU 61 oxygenated solvents 61 biobased plastics 61 fiber intermediates 61 Synalloy 61 Degussa GmbH 61 polyester staple fibers 61 SolVin 61 polytetrafluoroethylene PTFE 61 MDI methylene diphenyl diisocyanate 61 Elkem Solar 61 polybutylene terephthalate PBT 61 polypropylene PP 61 Styrenics 61 polyester staple 61 ammonium sulfate fertilizer 61 inorganic pigments 61 Ethylene Dichloride 61 acrylonitrile butadiene styrene ABS 61 Polystyrene 61 Caprolactam 61 DSM Fibre Intermediates 61 butyl rubber 61 PO MTBE 61 Alcoa KAMA 61 Advansa 61 Monomers 61 chlorine caustic soda 61 adhesives resins 61 textile maker Pegas 61 superabsorbent 61 Nanocor 61 polyolefin plastics 61 thermoplastic polyester 61 detergents cosmetics 61 coatings adhesives specialty 61 fumed silica 61 Specialty Plastics 61 Injection molding 61 fluorinated polymers 61 cellulosic fibers 61 NuSil 61 Vinyl Chloride Monomer 61 extrusion ingots 61 ethoxylate 61 Aqualon 61 acrylonitrile 61 Polyurethane Systems 61 Cereplast Compostables R 61 nanopowders 61 monoethylene glycol MEG 61 phthalic anhydride PA 61 Americas Styrenics 61 biaxially oriented polypropylene 61 flexible polyurethane foam 61 acrylic resins 61 bioplastic packaging 61 acrylic polymer 61 viscose staple fiber 61 PET resin 61 thermosets 61 oxo alcohols 61 powder metallurgy 61 polyethylene resin 61 Sasol Wax 61 silicones 61 synthetic soda ash 61 acrylate 61 masterbatches 60 RadiciGroup 60 carboxymethyl cellulose 60 Tosoh Corporation 60 Stanyl ® 60 Powder Coatings 60 HPPO technology 60 plastics 60 Supresta 60 Dr. Jurgen Hambrecht 60 isocyanate 60 PVB resin 60 7ACA 60 acetate yarn 60 propylene glycol PG 60 polyol 60 Vinyl Acetate Monomer 60 WACKER SILICONES 60 Suzano Petroquimica SA 60 Geloy 60 feedstock propylene 60 Equipolymers 60 polypropylene polyethylene 60 Maleic anhydride 60 Mono Ethylene Glycol MEG 60 Victrex PEEK 60 Lupotech T 60 polyvinyl acetate 60 viscose fiber 60 acrylic emulsion 60 Toho Tenax 60 Dimethyl 60 thermoplastic elastomer 60 non phthalate plasticizers 60 Polyethylene LLDPE 60 EO EG 60 rigid polyurethane foam 60 ULTEM * 60 Teijin Aramid 60 plasticiser 60 kraft NBSK pulp 60 sodium methylate 60 Caustic Soda 60 EVOH 60 VIDEO ICIS 60 pharmaceuticals agrochemicals 60 EPDM ethylene propylene diene 60 Maleic Anhydride 60 Oxea 60 plasticisers 60 specialty starches 60 pharmaceutical excipient 60 ultraviolet curable 60 Spherizone 60 APET sheet 60 titanium dioxide pigment 60 elastomeric coatings 60 ethylene glycol EG 60 specialty resins 60 ethylene oxide EO 60 Acrylate 60 resins additives 60 dolomitic lime 60 hyperpure polycrystalline silicon 60 elastomeric seals 60 Fluorinated 60 BASF 60 Colorants 60 DSM Engineering 60 solvents polyols 60 reactive dyes 60 TPUs 60 dye intermediates 60 latex polymers 60 Urethanes 60 plastics detergents 60 Coating Resins 60 acetal 60 elemental bromine 60 PET polyethylene 60 inherently flame retardant 60 titanium dioxide pigments 60 Bio PDO 60 organometallics 60 Polyvinyl Chloride PVC 60 Performance Polymers segment 60 nanoclay 60 Purac 60 Sulzer Chemtech 60 Kuan Yin Taiwan 60 Ingeo fibers 60 lubrication oils 60 polyester fiber 60 acrylonitrile butadiene styrene 60 epoxy resins 60 commercial wallcovering 60 Titanium Dioxide TiO2 60 Rilsan 60 Ethylene Oxide Ethylene Glycol 60 Ecovio 60 polyvinyl alcohol 60 polyester filament 59 #,# tpa LDPE 59 methacrylate 59 BASF BASF.DE 59 Dispersions 59 Saflex PVB 59 Topsoe 59 petrochemicals plastics 59 Dow Hyperlast 59 Soda ash 59 subsidiary OxyChem manufactures 59 lithographic sheet 59 PVDC 59 Metso Panelboard 59 fracture proppants 59 fluorinated specialty 59 Exxtral 59 monosilane 59 TPEs 59 maleic 59 fiber reinforced thermoplastics 59 Nonwoven 59 bioplastic resin 59 bromine compounds 59 Sorona ® 59 color masterbatches 59 Masterbatch 59 BASF Verbund 59 magnesium hydroxide 59 synthetic fiber 59 silicone sealants 59 hydrocarbon resins 59 acids solvents 59 aromatics olefins 59 polybutadiene rubber 59 Mirel TM 59 polyvinyl butyral 59 additive masterbatches 59 Polyvinyl Chloride 59 thermoplastic molding 59 Monomer 59 Huber Engineered Materials 59 isocyanates 59 ethylene vinyl alcohol 59 ceramics fracture proppants 59 Propylene oxide 59 vinyl acetate 59 specialty chemicals 59 chemicals vinyls 59 Perstorp Sweden 59 thermoplastic injection molding 59 silicone elastomers 59 Butadiene 59 Adhesives Sealants 59 RHI Refractories 59 Ludwigshafen Germany BASF 59 ethylene glycols 59 polyvinylidene fluoride PVDF 59 nano coating 59 Sorona 59 coatings 59 MIBK 59 polyester polyols 59 Tedlar films 59 nonwoven textiles 59 Nan Ya 59 Kingboard 59 Ethylene Propylene 59 Trevira GmbH 59 Praxair Surface Technologies 59 specialty aluminas 59 polyphenylene sulfide 59 viscose fibers 59 Crop BioScience 59 rheology modifiers 59 nitrile rubber 59 Silicones 59 para xylene 59 polymethyl methacrylate PMMA 59 ALTANA Chemie 59 Amines 59 methyl ethyl ketone MEK 59 rigid foams 59 tellurium selenium iridium 59 forgings castings 59 Yantai Wanhua Polyurethanes 59 Fortron PPS 59 orthoxylene 59 cumene phenol 59 Ingeo TM 59 Styrolution 59 MMA monomer 59 Propylene 59 PowerShield 59 EDC VCM 59 roofing membranes 59 Kemira Water 59 titanium pigment 59 ceramic membranes 59 CBT resin 59 Titanium dioxide 59 DSM Coating Resins 59 Sud Chemie 59 Dystar 59 silane gas 59 Teijin Twaron 59 advantaged feedstock 59 urea formaldehyde resins 59 methylene diphenyl diisocyanate 59 Vertellus Specialties 59 ceramic powders 59 ethyl acetate 59 hydrocarbon feedstock 59 Novamont 59 polymer additive 59 Epoxy resins 59 ethylene vinyl acetate EVA 59 eucalyptus pulp 59 Solvay Advanced Polymers 59 remelt 59 Bayer Material 59 Bioplastic 59 Plantic 59 Synthetic fibers 59 raw material 59 acrylonitrile ACN 59 Dow Izolan 58 corrugating 58 PE PP 58 reinforced composites 58 Italy Novamont SPA 58 Laffans 58 rigid polyurethane foams 58 Horgen Switzerland 58 ThyssenKrupp VDM 58 Innovative Plastics 58 Vespel 58 Solamet ® 58 acrylic monomer 58 EVA copolymers 58 zirconate 58 geotextiles 58 Eurochem 58 Polyester Film 58 DAK Americas LLC 58 ROQUETTE 58 foundry alloys 58 Diolen Industrial Fibers 58 Specialty Enzymes 58 airlaid 58 Galvanised steel 58 Polynt 58 textile fibers 58 Cereplast Compostables ® 58 titanium tetrachloride 58 pharmaceutical agrochemical 58 Lanxess AG LXS GY 58 INEOS ChlorVinyls 58 uncoated groundwood papers 58 oxygen scavenger 58 TiO2 pigment 58 fiber composites 58 urea ammonium nitrate UAN 58 nylon resins 58 Baytubes 58 poly lactic acid 58 gluconic acid 58 POLGB 58 thermoplastic polyurethane TPU 58 zinc alloys 58 Polymer Additives 58 BASF Catalysts division 58 exotic alloys 58 LFRT 58 Neopor 58 Kraton G# 58 Mitsubishi Rayon Co. 58 SPLENDA R Sucralose 58 calcined kaolin 58 dyestuff 58 Wolff Walsrode 58 Epoxy Resin 58 pearlescent pigments 58 Univar NV 58 Hydrogenated 58 electrogalvanized 58 viscose filament yarn 58 polyisocyanurate insulation 58 Kuraray Co. 58 Surface Specialties 58 Jinan Fertilizer 58 Custom Synthesis 58 cyclohexane 58 Recticel 58 epichlorohydrin 58 polybutadiene 58 Polyethylene Terephthalate 58 DSM NeoResins + 58 decorative laminates 58 BASF Aktiengesellschaft 58 Degussa AG 58 antimicrobial additives 58 Lanxess AG 58 Daicel 58 Akzo Nobels 58 graphite electrodes 58 fluorosilicone 58 Makrolon 58 Mirel ™ 58 thermoplastic composite 58 epoxy adhesives 58 decorative laminate 58 groundwood 58 pigments resins 58 Dorf Ketal 58 VICTREX PEEK 58 Schkopau Germany 58 solventborne 58 perfluorinated 58 Thermoplastic Elastomers 58 flexible foams 58 Sorona R 58 Electronic Materials 58 Biocides 58 Metallocene 58 Specialty Polymers 58 injection moulders 58 oxo alcohol 58 Polyamide 58 methyl methacrylate 58 plastics compounder 58 thermoplastic composites 58 chloromethane 58 petrochemical feedstock 58 renewably sourced 58 electrical steels 58 cresol 58 dyes pigments 58 battery separators 58 Röchling 58 Industrial Polymers 58 flooring adhesives 58 Pronova Biocare 58 adhesive sealant 58 Evonik Industries AG 58 Sika AG 58 phenoxy herbicides 58 water soluble polymers 58 Fluff pulp 58 refined glycerin 58 thermoplastic materials 58 extruded polystyrene 58 Dyneon 58 polycarbonates 58 Cytec Specialty Chemicals 58 Polyesters 58 diisocyanate 58 polymers 58 thermoplastics elastomers 58 specialty elastomers 58 Taminco 58 Thermoplastics 58 emulsion polymers specialty 58 vinyl ester resin 58 phenoxy 58 Dow Polyurethanes 58 bile acid binding 58 Ethylene Dichloride EDC 58 Clariant 58 cellulose fibers 58 olefin derivatives 58 thermoset 58 tourism conglomerate Sava 58 BCTMP 58 phosphate ester 58 nitrogenous fertilizer 58 Polyvinyl Alcohol 58 Rhein Chemie 58 Kuraray 58 graphite electrode 58 TenCate Geosynthetics 58 PU foam 58 Caustic soda 58 hydrogen purifiers 58 cyanoacrylates 58 Plastic Omnium 58 acrylic fibers 58 Borregaard 58 polysulfone 58 industry Skydrol r 58 polyvinylidene chloride 58 Asahi Kasei Chemicals 58 Tedlar 58 Oxygenated Solvents 58 polypropylenes 58 Fuchs Petrolub 58 Ethylene Oxide 58 Santoprene TM 58 ULTEM 58 Elastomers 58 polycondensation 58 Tessenderlo 58 flame retardant additives 58 coated paperboard 58 carboxylic acids 58 methacrylate monomers 58 injection molders 58 dyestuffs 57 phosphate salts 57 bioplastic resins 57 activated carbons 57 PET preforms 57 Linear Low Density 57 NYSE KRO 57 fiberglass yarns 57 Dow Coating Materials 57 conductive pastes 57 Plantic Technologies 57 polyester vinyl ester 57 Kemira Coatings 57 Emulsions 57 Ziegler Natta 57 acrylic latex 57 polycarbonate resin 57 Wilbur Mok 57 Succinic Acid 57 feedstock ethylene 57 nylon resin 57 polyurethane coatings 57 propanediol 57 isoprene rubber 57 Acetate Products 57 Valox 57 Functional Polymers 57 potassium alum 57 Propylene glycol 57 INEOS Phenol 57 Eka Chemicals 57 Performance Additives 57 polyester acrylic 57 Polimeri Europa 57 ChemPoint.com 57 boron carbide 57 aliphatic 57 Niax 57 Vistasolar 57 Compostables ® 57 plastics compounding 57 grade propylene PGP 57 asphalt lube oils 57 chromate pigments 57 anatase 57 thermoplastic polyolefin TPO 57 polyurethane resins 57 Inergy Automotive Systems 57 Fiberweb plc 57 ferro manganese 57 polymer resin 57 APET 57 Alucobond 57 Phenolic 57 BioOil ® 57 Merquinsa 57 propionic acid 57 precipitated calcium carbonate 57 filament yarn 57 Graphite Electrode 57 rotational molding 57 pharmaceutical intermediates 57 DuPont Performance Elastomers 57 PET HDPE 57 DSM Melamine 57 sulfone 57 Elementis Plc 57 Methyl Methacrylate 57 welding electrodes 57 kraft pulp 57 Bioamber 57 BASF SE BAS.XE 57 Haldor Topsoe 57 metallizing 57 Akzo Nobel Coatings 57 nylon textured yarns 57 BP Innovene 57 maker Nuplex Industries 57 tin stabilizers 57 ethylene dichloride EDC 57 Invibio 57 Hytrel ® 57 ThyssenKrupp Nirosta 57 Ethylene oxide 57 octene 57 solvent borne 57 brand PET polyethylene 57 Insulock Blocks 57 HDPE resin 57 butyl 57 Hostalen 57 naphthenic 57 Dongyue Group 57 random copolymers 57 fine precision abrasives 57 Weymans 57 Ashland Aqualon Functional Ingredients 57 mono ethylene glycol 57 HumiSeal 57 Teijin Ltd. 57 Baytubes ® 57 phosphatic fertilizer 57 @ modplas.com 57 architectural coatings 57 Coating Effects 57 ESK Ceramics 57 biorenewable 57 Foams 57 Wesseling Germany 57 DuPont Teijin Films 57 adhesives coatings 57 Cytec Performance 57 Xylene 57 inks coatings 57 Tedlar R 57 galvanized coil 57 metallic pigments 57 herbicides fungicides 57 polystyrene resins 57 coke refined petroleum 57 flame retarding 57 HNBR 57 Glycol 57 Fiberglass Reinforced 57 Dow Wolff Cellulosics 57 Shin Etsu 57 KRATON Polymers 57 Printing Inks 57 piezoelectric ceramics 57 decorative coatings 57 glacial acetic acid 57 Basf 57 Evonik Degussa 57 Polymer Intermediates 57 naphtha feedstock 57 ferrochromium 57 manmade fibers 57 DSM Dyneema 57 specialty hydrocolloids 57 northern bleached softwood 57 Rare Earth metals 57 Schkopau 57 butyl acetate 57 Dow Adhesives 57 Lenzing Modal 57 Saudi Kayan 57 nonwoven fabric 57 Degussa 57 PVB interlayers 57 thermoplastic elastomer TPE 57 Thermoplastic Elastomer 57 Ineos Fluor 57 FRX Polymers 57 Dow Chemical DOW.N 57 oleochemical 57 Polypropylene 57 #,# propanediol 57 PBT resin 57 Potassium hydroxide 57 SINGAPORE ICIS 57 bio butanol 57 polyurethane adhesives 57 HC Starck 57 ferro silicon 57 Vertellus Specialties Inc. 57 Polyethylene Terephthalate PET 57 DuPont Performance Polymers 57 Chlor Alkali 57 Bio PDO TM 57 aqueous dispersion 57 UMG silicon 57 Sarnafil 57 MEGlobal 57 oleochemicals 57 polypropylene 57 Eastman Chemical Co 57 Bericap 57 styrene monomers 57 polyacetal 57 spandex fibers 57 polyester staple fiber 57 DSM Anti Infectives 57 brominated flame retardant BFR 57 texturised yarn 57 polyvinyl chloride resins 57 Cristal titanium dioxide TiO 57 inkjet inks 56 FutureCarbon 56 sodium sulfide 56 Vydyne 56 granulates 56 zinc oxide ZnO 56 thermoplastic TPV 56 COIM 56 Kraton Polymers 56 Nuplex Industries 56 Nasdaq PENX 56 metallocene 56 silanes 56 Pebax 56 Ticona Engineering 56 polyester intermediates 56 ultrasonic spray 56 pulp bleaching 56 polylactide 56 structural adhesives