Polychloroprene Rubber

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2 Polychloroprene Rubber 2 What is Showa Denko Chloroprene? Showa Denko Chloroprene () is a type of synthetic rubber used as an elastomer in the automotive (belts and hoses), construction (waterproofing and sealing), wire and cable, adhesives, and countless other industries. Showa Denko Chloroprene has been produced for over 50 years and continues to expand its application fields. The properties of Showa Denko Chloroprene is highlighted by the a wide range of resistances to sun, ozone, and weathering, many oils and chemicals, low and high temperatures, flame, and toughness against abrasion and general wear. The versatile properties have long been the key to Showa Denko Chloroprene s utility as a multi-purpose rubber. The product is available in over 40 grades, produced as either a dry chip or aqueous dispersion (Latex). Well balanced elastomer Elasticity Oxidation resistance Heat resistance temperature resistance Compression set Abrasion resistance Poor Excellent Poor Excellent Poor Excellent Poor Ozone resistance Excellent Poor Excellent Gas transmission resistance Insulation resistance Oil resistance Poor Flame resistance Excellent Weather resistance Poor Excellent Poor Excellent Poor Excellent Poor Excellent Poor Excellent Poor Excellent

3 HistoricalOverview 3 Location Plant: Kawasaki, Japan Process (Butadiene) Butadiene Chlorine Footprints 1960: Established Showa Neoprene (Showa Denko 50%, DuPont 50%) 1963: Started Neoprene production at Kawasaki with DuPont technology 2002: Terminated JV and started business as Showa Denko Process 1963: Started production with Acetylene process 1972: Converted to butadiene process, developed by DuPont, forsafetyconcerns Quality & Environment Management ISO9001, ISO14001, OSHMS Monomer Synthesis Polymerization Finishing & Packaging DCB CD Dr y Paperbag Skid/Pallet Emulsion Latex IBC/Tote ISO Tank Flexi-bag Caustic Soda Resin Modifier DCB CD

4 LATEX Aqueous Dispersion 4 Showa Denko Chloroprene latex grades are emulsions of polymerized chloroprene dispersed in water; containing emulsifying agents and stabilizers. The latex grades are viscous, off-white, liquids which range in solid content from 47% to 60%. Showa Denko chloroprene latex is available in over 15 different grades, each tailored to meet the requirements of specific end uses. Water-based adhesives Foam to foam, Shoe sole bonding, Contact adhesive, pressure laminate, Metal bonding Construction & Coating Asphalt emulsion, Mortar modification, Water proof coating, Roofing Dipped goods Surgical gloves, Industrial gloves, Medical breathing bags Others Sealant, Mattress, Textile coating, Flame retardant foam

5 DRY CHIP General Purpose 5 Showa Denko Chloroprene is available in a dry chip form. There are around 30 dry grades that cover a wide range of properties and performance to meet the requirements from automobile, adhesive, construction and general rubber industry fields. Automotive Transmission belt, Hose, Engine mount Industrial Conveyor belt, Gasket, Boots seal, O-ring, Wire and cable Construction Bearing pad, Joint, Rubber sheet Adhesive Foam to foam, Carpet backing, pressure laminate Others Sponge, Escalator handrail, Mattress

6 About us 6 Profile Showa Denko K.K. Business Global Network Since its foundation in 1939, Showa Denko K.K. has been one of Japan s leading chemical manufacturers. For more than 70 years we have responded to the changing needs from various markets by continuously developing new chemicals and products in close cooperation with our customers. Europe North America JAPAN Asia Petrochemicals Chemicals Electronics Asia Inorganics Aluminum Others

7 LATEX APPLICATION MAP BY YSTALLIZATION VS. GEL CONTENT 7 Cohesion Tensile strength Hardness temp. resist Dry tack Elongation Sol () Gel Content 400 Coating, Binder Adhesives A SD78 671A 654 AE101 Asphalt Modification 115 SD100 SD77S SND57 SD81 Dipped Goods (Glove) Cohesion Tensile strength Hardness Crystallization Rate temp. resist Dry tack Elongation

8 SHOWA DENKO CHLOROPRENE LIQUID DISPERSION PROPERTIES (Typical Values) 8 Grades Polarity Homo/Copolym. Main Feature Solids Content, % Primary Applications & Other Characteristics Physical Characteristics ph, 1) 25 Specific gravity, 25 Latex Polymer Brookfield viscosity, mpas, 25 (Spindle No.1, 30rpm) Surface tension, dyn/cm, 20 Softening point, (Creeping temp) Polymer type Emulsifiers A 671A SND57 SD77S SD100 SD78 AE Ozone and weather resistance Bonded Adhesives Adhesives Dipped goods Dipped goods Treated Dipped goods Adhesives Adhesives Pressure fibers paper sensitive Dipped goodsdipped goodsadhesives Fabric Adhesives adhesives Coatings impregnation Bonded fibers Non-woven Non-woven Foam (Binder) Bonded fibers Primer Adhesives fabric fabric Dipped goods Sealant Treated modulus modulus Coatings paper solid Excellent Accelerator same polymer Carpet Mastics elasticity free as 750 backing Excellent flexibility Wet gel properties Tensile strength Elongation Cure rate Cured Film Properties Modulus Tensile strength Crystallization rate Extremely fast Note 1: ph values decline slowly upon ageing. 2: Spindle No fast *2) modulus 40 -fast curing Med.-high Very slow Good wet strength 40 Med.-fast -fast crystallizing Very fast high Water based adhesives for foam bonding Adhesives Good quick break with excellent stability Extremely Water based adhesives for foam bonding Adhesives Adhesives Excellent quick break with decent stability Extremely Water based adhesives for high pressure laminate Med.-fast -fast Non ionic Elasticized portland cement Sealants Coatings Asphalt emulsion Colloidal stability at low ph 200 Med.-fast -medium -medium -fast Non ionic General purpose Good tackiness Non-ionic Non-ionic Contact adhesives Coating Mastics Sealant Asphalt emulsion *2) SD81 Non ionic gel Med.gel gel Med.gel gel gel Med-high gel gel gel Sol Sol Sol Med.gel Med-high gel Med.gel Sol Resinate Resinate Resinate Resinate Resinate Resinate Resinate Resinate Resinate Resinate Resinate Resinate Resinate Resinate, Polyvinyl Polyvinyl Non-ionic alcohol alcohol The information set forth herein is furnished free of charge and is based on technical data that Showa Denko K.K. believes to be reliable. It is intended for use by persons having technical skill, at their own discretion and risk. The handling precaution information contained herein is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards. Because conditions of product use and disposal are outside our control, we make no warranties, express or implied, and assume no liability in connection with any use of this information. As with any material, evaluation of any compound under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate or a recommendation to infringe on any patents. CAUTION: Do not use in medical applications involving permanent implantation in the human body. For other medical applications, discuss with your Showa Denko customer service representative. Showa Denko Chloroprene is a trademark of Showa Denko K.K. Copyright 2016 Showa Denko K.K. All Rights Reserved. Non-ionic Contact adhesives Pressure sensitive adhesive *2) Very slow

9 PLOT OF DRY GRADES YSTALLIZATION RATE VS. MOONEY VISCOSITY WHV140 Mooney AD40 AD AC ADS WHV WHV100 W WK WM1 WXKT AG WD TW100 SND48 WXK SND37 SND5 GW AF TW WB GRT WXJ SND22 WRT TRT GN WXJK SND8 SND43 SND35 SND45 0 Crystallization Rate

10 SHOWA DENKO CHLOROPRENE DRY GRADE PROPERTIES (Typical Values) 10 GENERAL PURPOSE G Types (Sulfur-modified group) W Types (Basic group) Type W Types (Adhesive application) W Types (Crystallization resistant group) W Types (Extrusion & calendering) W Types ( mold fouling group) T Types (Specific group for extrusion, calendering) A Types (Adhesive application) Grades GN GRT GW W WM1 WHV WHV100 WHV140 WXJ SND5 SND8 WRT WD WB WXK WXKT SND37 WK WXJK SND35 SND43 SND45 TW TW100 SND22 SND48 TRT AC ADS AD AD40 AF AG Mooney Viscosity [ ML 1+4, 100] Crystallization Rate Very Very Very Very Very Very Very Very slow Very slow Very fast Very fast Very fast Very fast - Other Characteristics Non-staining, sulfur modified G type with best tear strength and flex resistance Good low temperature properties, G type with best tack for frictioning application Sulfur modified G type with better heat and compression set resistance than GN Standard grade for general purposes er viscosity version of W er viscosity version of W for high loading application and general adhesives er viscosity version of WHV For high viscosity adhesive Good low tempetature properties for general use er viscosity version of WXJ er viscosity version of WXJ Excellent low temperature properties er viscosity version of WD Best extrusion and calendering properties Good low temperature properties with better extrudability er viscosity version of WX-K for high loading use Better extrusion version of WX-K with improved mold release Better mold release version of W with good mill-and flow-ability Improved mold release version of WXJ with good mill-ability More excellent low temperature properties of WRT with improved mold release for injection molding goods er viscosity version of SND-35 with less shrinkage More excellent low temp. and improved brittleness temp. version of WRT with improved mold release for injection molding goods Superior extrusion and calendering grade with good tensile properties er viscosity version of TW for high loading use Good low temperature properties with better extrudability er viscosity version of SND-22 with better calender-ability and extrusion-ability having colapse resistance Excellent low temperature properties with better processability Adhesives and paints use with good breakdown properties solution viscosity version of AD. VOC adhesive potential Adhesives and paints use with good solution viscosity stability solution viscosity version of AD Excellent hot bond strength, carboxylated Excellent sprayability, thixotropic Note Brookfield viscosity of 5% raw polymer solution in toluene at 25, [mpas] Brookfield viscosity of 10% raw polymer solution in toluene / hexane60/40 vol/volat 25, [mpas] The information set forth herein is furnished free of charge and is based on technical data that Showa Denko K.K. believes to be reliable. It is intended for use by persons having technical skill, at their own discretion and risk. The handling precaution information contained herein is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards. Because conditions of product use and disposal are outside our control, we make no warranties, express or implied, and assume no liability in connection with any use of this information. As with any material, evaluation of any compound under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate or a recommendation to infringe on any patents. CAUTION: Do not use in medical applications involving permanent implantation in the human body. For other medical applications, discuss with your Showa Denko customer service representative. Showa Denko Chloroprene is a trademark of Showa Denko K.K. Copyright 2016 Showa Denko K.K. All Rights Reserved.

11 11 The information set forth herein is furnished free of charge and is based on technical data that Showa Denko K.K. believes to be reliable. It is intended for use by persons having technical skill, at their own discretion and risk. The handling precaution information contained herein is given with the understanding that those using it will satisfy themselves that their particular conditions of use present no health or safety hazards. Because conditions of product use and disposal are outside our control, we make no warranties, express or implied, and assume no liability in connection with any use of this information. As with any material, evaluation of any compound under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate or a recommendation to infringe on any patents. CAUTION: Do not use in medical applications involving permanent implantation in the human body. For other medical applications, discuss with your Showa Denko customer service representative. Showa Denko Chloroprene is a trademark of Showa Denko K.K. Copyright 2016 Showa Denko K.K. All Rights Reserved.