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Akrochem

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February issue.



Product Spotlight

Thermoplastic elastomers
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Rubber World's Product News Online

Equipment | Materials | Instruments | Hardware/Software | Services

 
 
Closed cell silicone sponge
The company's kSil V-0 is a closed cell, lightweight silicone sponge that has been specially formulated for the rail industry and its applications, including door seals, lighting enclosures, HVAC seals, vibration isolation, acoustic barrier, LCD display gaskets and gap fillers. Approved and compliant to European fire safety specifications, it is the complete silicone material, combining low smoke, low toxicity compliance to EN 45545-2, flame resistance to UL94v-0 and low compression set, allowing for excellent sealing properties and extreme temperature resistance, according to the company. The kSil silicone sponge sheeting materials provide high performance sealing and dampening for rail interior applications. Approved and specified for rail industry standards such as EN 45545-2, BS 6853 Category 1 and NF F-16-101 12 F0, they are formulated and designed to withstand extreme temperature and environmental stresses, while improving passenger safety by meeting fire and smoke safety approvals.

Silicone Engineering Ltd.
www.silicone.co.uk

Post date: 2/2/2017

 
Thermoplastic elastomers
Thermoplastic elastomers Dryflex Green is a family of thermoplastic elastomer compounds based on raw materials from renewable resources such as plant and vegetable crops. Raw materials can be produced from various renewable sources which include products and by-products from agriculture that are rich in carbohydrates, especially saccharides such as grain, sugar beet and sugar cane. Several customization options have been developed for the Dryflex TPE compounds. The hardness range has been expanded to include 20 durometer A to 50 durometer D, with amounts of renewable biocontent to over 90%, depending on the hardness. The biobased content in the Dryflex Green compounds can derive from various raw materials such as polymers, fillers, plasticizers or additives. The company has additionally developed compounds using organic fillers and natural fibers from plants, crops or trees, including cork.

Hexpol TPE
www.hexpoltpe.com

Post date: 2/2/2017

 
Hot cast polyurethane
A producer of industrial wheels and castors has expanded its product portfolio to include extra-large custom-made wheels following a technical development project with Tecnothane hot cast polyurethane MDI system experts. Pevotec wheels based on the Tecnothane hot cast polyurethane MDI system are said to be characterized by their flexibility, and are known for their ability to carry heavy loads, even where mounting space is tight. A wide range of Tecnothane hot cast polyurethane MDI systems is offered. The company can help customers adapt their chemical and physical properties to meet customer needs.

Huntsman Tecnoelastomeri
www.tecnoelastomeri.com

Post date: 2/2/2017

McLube
Fluoroelastomer line
DAI-EL fluoroelastomers from Daikin-America are distributed by Harwick Standard. The fluoroelastomer line includes general purpose and specialty grades of copolymers and terpolymers, peroxide curable copolymers and terpolymers, and base resistant fluoroelastomers and perfluoroelastomers (FFKMs). The DAI-EL product line includes a wide range of Mooney viscosities and cure rates for excellent processability and productivity in a wide array of processes, including compression molding, injection and transfer molding, extrusion and calendering. The DAI-EL portfolio is said to offer a full range of physical properties, heat and chemical resistance, and low temperature flexibility to provide superior performance in any environment. Technical service and application development are provided.

Harwick Standard Distribution
www.harwick.com

Post date: 2/2/2017

 
Mold release agents
DiamondKote DKW-4013A is a water-based, silicone-free, semi-permanent mold release agent designed for use in the molding of silicone elastomers (VMQ) and HNBR. DiamondKote DKW-4013A is said to promote excellent rubber flow without significant transfer and provides excellent release characteristics. Typical applications include the molding of various elastomeric sealing systems. DiamondKote DKW-4013A can also be effective on a variety of other peroxide cured elastomers, including EPDM and fluoroelastomers. DiamondKote DKW-4064 is a water-based, semi-permanent mold release agent designed for use in the molding of various peroxide cured elastomers such as EPDM and FKM. DiamondKote DKW-4080 is a water-based, semi-permanent mold release agent designed for use in the molding of various fluoroelastomers. It is said to be especially effective in the molding of high-performance elastomeric sealing systems using high value compounds.

ITW Fluids North America
www.itwfluidsna.com

Post date: 2/2/2017

 
Liquid silicone molding
A practical and cost-effective way to get real liquid silicone rubber (LSR) parts quickly is said to be provided by the company. The firm uses its injection molding technology to analyze part geometry, provide design and manufacturability feedback and produce the tools. The process is suitable for producing low volumes of LSR parts, typically between 25 to 5,000+ pieces, but up to 25,000 in some cases.

Proto Labs
www.protolabs.com

Post date: 2/2/2017

Struktol
Aerosol mold release
A large custom molder discovered that inconsistent application of liquid mold release resulted in reduced part quality. Also, the varied parts it produced required various release agents, which confused operators and consumed plant space. This manufacturer recommended a convenient aerosol application that provided consistent control of particle size, spray pattern and volume of product applied. After testing A353 Endurance mold release, the molder is said to have immediately seen improved part quality and a reduced scrap rate. After integrating A353 into its molding process, the molder is said to have improved production rates by eliminating the need to stop and refill pressure pots and spray systems. A353 Endurance mold release is a semi-permanent, fast curing mold release for all elastomers, including EPDM, nitrile and polychloroprene. It is said to provide a permanent, yet removable anti-stick coating that enables fast, easy part removal from molds.

Stoner
www.stonersolutions.com

Post date: 2/2/2017

 
NBR/PVC polymers
Several grades of Rubaloy NBR/PVC polymer are available. Rubaloy 50 is a 50/50 blend acrylonitrile (NBR) with polyvinyl chloride (PVC). Rubaloy 7360 is 70% NBR with 30% PVC. Rubaloy SS is a blend of 60% NBR and 40% PVC with 70% oil. All grades are said to provide good fuel, abrasion, flame and ozone resistance. They can be used in a variety of rubber compounding applications such as molded gaskets, oil-fuel seals, o-rings, extrusions, grommets, hoses, and more.

Akrochem
www.akrochem.com

Post date: 11/4/2016

 
Farnesene-based oligomers
Information on the synthesis and characterization of farnesene-based oligomers (poly(trans-β-farnesene), including anionically prepared diols and monols, is available from the company. Anionic polymerization of the monomer produces a highly branched bottle-brush structure, with rheological properties that are markedly different than those of linear diene polymers. The company is a supplier of additives for high-performance rubber applications.

Total Cray Valley
www.crayvalley.com

Post date: 11/4/2016

McLube
Modified natural rubber
Natural-FR is based on a modified natural rubber grade that is renewable. It starts its journey from the latex of the natural rubber tree Hevea brasiliensis. Natural-FR can be used to meet material flammability criteria in industrial rubber products and has passed the flammability requirements for floor composites and flexible rubber-metal units as specified in the new EU standard EN45545-2 (2013), according to the company. Natural-FR in third party laboratory testing is said to have passed criteria for a flooring application, including smoke density, heat release rate, ignitability, smoke toxicity, flame spread, and dry and wet slip resistance, and is authorized for use in entrance matting in London underground stations. Natural-FR is said to be fire retardant, zero-halogen, green, low smoke and sustainable.

Tun Abdul Razak Research Center
www.tarrc.co.uk

Post date: 11/4/2016

 
Elastomeric polymers
A full-service supplier to the rubber industry is staffed with rubber industry veterans, and is equipped with comprehensive testing laboratories, and stocked with leading elastomeric products in warehouse locations throughout North America. The firm's product line encompasses a best-in-class list of elastomeric polymers, rubber chemicals, fillers, bonding agents and testing equipment, all from respected manufacturers with trusted brand names. Laboratory services include in-house design and development capabilities (under ISO 9001:2008) with a technical team that specializes in formulation development and optimization, material testing, process engineering assistance and product characterization. Lord in-mold bonding adhesive technology for plastic and silicone components is offered. 3M fused silica is also provided as a substitute for crystalline silica, helping to reduce worker exposure to harmful chemicals. The firm's technical team is said to be passionate about tackling rubber design challenges. Finding safer substitutes for crystalline silica and formulating LSR and fluorosilicones with adhesion promoters to bond with plastic components are two examples of the firm's desire to serve the rubber industry.

R.D. Abbott
www.rdabbott.com

Post date: 11/4/2016

 
Chemical masterbatches
Akrosperse, Akrochex, Akroform and Akroform PM polymer bound chemical dispersions retain the active ingredients' finely divided character while providing a truly predispersed product, according to the manufacturer. The firm is said to provide a broad range of chemical masterbatches, predispersing many ingredients, particularly the active rubber chemicals. The high degree of dispersion of the active chemical aids effective utilization of the material and frequently allows shorter mixing cycles. The use of polymer bound forms is said to be the best method, so far known, to minimize exposure to the active ingredient. The products are used for reduced loss of active rubber chemicals, reduced dustiness, etc. (Akrochem)

Akrochem
www.akrochem.com

Post date: 11/4/2016

Struktol
Processing additives
Ultra-DFR (dispersion, flow and release improvement) processing additives are said to improve, in multiple ways, the processing of various heavy silica-loaded polymer compounds.

ChemSpec, Ltd.
www.chemspecltd.com

Post date: 11/4/2016

 
Polyurethane composites
Polyurethane composites and their manufacturers are said to benefit from the company's outstanding advanced polyurethane systems, processing and design support, painting and finishing techniques, and close customer collaboration. Applications include building and construction, equipment and mass transit, and industrial goods. The company manufactures high-tech polymer materials.

Covestro LLC
www.covestro.comm

Post date: 11/4/2016

 
Thermoplastic polyurethane
Thermoplastic polyurethane Irogran A92P4637 and Irogran A85P4394 thermoplastic polyurethanes for the automotive industry are said to feature excellent weather and heat resistance, making these easy-to-process products ideal for use in anti-brake locking system (ABS) applications. For the wire and cable industry, Irogran A78P4766 and Irogran A89P5012DP are said to feature outstanding physical properties, including excellent fire resistance. These TPUs are said to be easy to process and color, and are ideal for jacketing power cables used to charge electric and hybrid vehicles. For creating dispensing and conveying equipment for food and drink processing, Irogran A 85 P 4394 FCM, Irogran A 80 P 5039 FCM, Irogran A 85 E 4993 FCM, Irogran A 92 E 5670 FCM and Irogran A 92 P 4637 FCM TPUs are qualified for food contact applications and can be extruded to create hoses, tubes, belts and films used in food processing and packing plants, as well as supermarkets. Easy to process and stable during manufacture, these materials are said to offer excellent physical properties and resistance to water. They are also flexible at low temperatures, a necessity in cold storage environments.

Huntsman
www.huntsman.com

Post date: 11/4/2016

McLube
TPE process additives
Rubber and thermoplastic elastomer process additive solutions are available under the Struktol and Permalease product brands. The company offers high technology processing chemistry for advanced compounding in the original equipment sector for the energy efficient tire and advanced under-hood automotive industries. The Struktol process additive range and Permalease mold release systems are said to contribute to compounding and processing success. Products include HT Series advanced lubricant products for filled and unfilled systems; KW Series high performance synthetic plasticizers for extreme service conditions; TR Series compound release and friction modifiers for surface modification control; WB Series dispersing additives for maximized batch uniformity; and Permalease Series efficient molding and elastomer surface coating systems. The company is said to have the technical ability and resources to develop innovations in chemistry and processing. The firm's production is both a renewable and sustainable resource, and plants are globally located and operate to the highest standards. Technical service and support are provided, and the firm is said to work collaboratively to provide efficient solutions.

Struktol Company of America
www.struktol.com

Post date: 11/4/2016

 
TPE/TPV compounds
TPE/TPV compounds Four specialty thermoplastic elastomers have been developed for seals, gaskets, motor mounts, drain tubes, shock absorbers, feet and other components of major appliances, expanding a diverse family of compounds for these "white goods" applications. The compounds include Sarlink thermoplastic vulcanizates and Monprene TPEs. In addition to the standard grades, the company can develop custom formulations to meet specific customer requirements. General purpose thermoplastic vulcanizate compounds (the Sarlink 4100 Series) have long been used in molded and extruded parts for clothes washers and dryers, exhibiting excellent elastic properties and resistance to detergents and bleach, according to the company. The specialty TPVs address issues faced by general purpose TPVs currently used in appliances. In applications like seals and gaskets, Sarlink TPVs are said to exhibit outstanding rubber-like performance and toughness, while offering cost savings over EPDM rubber.

Teknor Apex
www.teknorapex.com

Post date: 11/4/2016

 
Thermoplastic calendering
The Hercules giant-sized calender features high-precision nip control with three rolls that are 6,800 mm wide. The calender is made of forged steel and offers process temperatures up to 260C. It is said to be suitable for the production of innovative articles obtained from thermoplastic materials, including scraps, for applications in thermo/acoustic insulation fields, allowing for maximum production flexibility. The company offers a range of calenders, along with mixing mills, mixers and control systems for the rubber industry.

Comerio Ercole
www.comercole.it

Post date: 11/4/2016

Struktol
Styrenic TPE grades
Styrenic TPE grades Options have been expanded for injection molders of automotive interior parts by developing styrene block copolymer (SBC) thermoplastic elastomers (TPEs) with alternative cost/performance profiles to those of widely used thermoplastic vulcanizates (TPVs). Offered alongside TPVs in the company's Sarlink range of elastomers, Sarlink ML-1100 Series and ML-1600 Series styrenic TPEs are general-purpose and enhanced-performance offerings, respectively, and are both available in a wide range of hardness levels. Both series are said to exhibit higher flow than comparable TPV grades, enabling them to be molded into more complex, intricate geometries and to improve cycles through reduced packing and cooling times. Particularly in applications where TPVs could be considered over-engineered with respect to performance requirements, the styrene TPEs are also said to provide cost advantages. The TPE grades are recommended for such automotive interior applications as bin mats, cup holder liners and soft-touch grips for knobs and buttons.

Teknor Apex
www.teknorapex.com

Post date: 11/4/2016

 
Polyurethane rubber
Millathane UV is a UV curable millable polyurethane compound. For the first time, millable polyurethane extrusions can be continuously cured, and products molded, using UV light without the use of ovens, microwaves or salt bath units, according to the company. Millathane UV curable compounds can be extruded or calendered onto fabric or as unsupported sheet, and then continuously cured by passing them through a UV-curing conveyor belt chamber. Molded parts can be press-cured using special transparent molds to allow curing with UV light, or can be cured in a UV chamber. Time of irradiation varies with the nature and type of material, the type and concentration of other ingredients, and the type and power of the light source.

TSE Industries
www.tse-industries.com

Post date: 11/4/2016

 
Dual-cure oligomer
CN9302 dual-cure urethane acrylate oligomer delivers both acrylate and isocyanate functionality. The reactive isocyanate gives UV/EB formulations a secondary cure of shadowed areas with ambient moisture, which is said to result in enhanced coating performance. The CN9302 oligomer can be used in UV/EB-curable, two-part urethane, and dual-cure formulations. It offers low color and low viscosity, while also providing exceptional adhesion and resistance to abrasions and chemicals, according to the company. Additional benefits of formulating with CN9302 oligomer are said to include coating toughness and pigment wetting for better distribution in liquids. These combined features and performance properties are said to make the oligomer excellent for conformal coatings and other high-performance coatings on metal, plastic and wood surfaces. It can also be used to improve the cure and performance of laminating adhesives, pressure-sensitive adhesives and screen printing inks.

Sartomer Americas
www.sartomer.com

Post date: 11/4/2016

McLube
Thermoplastic elastomer
An SEBS-based compound is offered for the production of elastic films and is said to be characterized by excellent softness and transparency, optimal elastic recovery and high tear resistance. Laprene 83FE00864 can be transformed by blown film extrusion into an extremely thin sheet with thickness up to 50 microns. Moreover, it can be co-extruded with other polyolefins such as polyethylene (PE) for the production of multi-layer films. Laprene 83FE00864 is said to be suitable for contact with a wide range of food products and is completely free of hazardous substances. Its softness is said to make it particularly comfortable and ideal for production of personal hygiene products, and for other applications in the paramedical sector. The company's product range extends from thermoplastic elastomers to engineering plastics, including customized solutions.

SO.F.TER
www.softergroup.com

Post date: 11/4/2016

 

 
 
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