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Rubber World's Product News Online

Equipment | Materials | Instruments | Hardware/Software | Services

Rubber transfer adhesive
In response to market demand for a pressure-sensitive adhesive designed to replace mechanical fasteners, reduce component weight and act as an assembly aid in manufacturing applications, a high strength rubber transfer adhesive has been developed. With a specially formulated, proprietary construction, the highly durable adhesive solution is designed to provide a secure bond to a wide variety of materials and surfaces, including low energy surfaces like polyethylene and polypropylene, as well as those that are uneven or irregular, according to the company. Unlike liquid alternatives, this rubber-based adhesive is said to deliver immediate bonding with less cleanup and waste. As an added benefit, the high strength adhesive can be applied without special equipment, reducing customer labor costs, increasing production assembly efficiency and delivering a notable return on investment, according to the manufacturer.


Post date: 6/21/2016

Hydroxyl-terminated diols
Krasol hydroxyl-terminated diol resins are based on homopolymers of butadiene and are said to be characterized by low volatiles content, low glass transition temperatures, excellent hydrophobicity and a highly reactive functionality, according to the manufacturer. The company manufactures Wingtack and Cleartack hydrocarbon resins, Poly bd, Ricon and Krasol liquid polybutadiene resins, SMA copolymer resins and Dymalink monomers. These products are used as raw materials and additives for adhesives, rubber, electronics, thermoplastics, coatings and other applications.

Total Cray Valley

Post date: 6/21/2016

Nitrile elastomer product
EnDura Z90LT is a hydrogenated nitrile elastomer compound specially developed for high pressure applications to reduce the risk of rapid gas decompression seal failure and maintain resilience at low temperatures. The EnDura range of elite elastomer materials has been developed specifically for use in downhole, surface and subsea oilfield equipment, offering excellent rapid gas decompression resistance, according to the manufacturer. The range includes material grades that are said to provide the ultimate in chemical resistance and low temperature performance for use in arctic conditions. EnDura is said to be the most technically advanced range of elastomer materials available, developed to deliver oilfield sealing technology to exceed oil and gas operators' performance requirements, according to the company. EnDura elastomers are said to have better chemical resistance than conventional explosive decompression grades, greater low temperature capabilities, and are compliant with many international explosive decompression standards. EnDura Z90LT is a low temperature HNBR which is said to meet the requirements of the industry standards ISO 23926-2 and Norsok M710, unlike conventional low temperature HNBR materials.

Precision Polymer Engineering

Post date: 6/21/2016

Engineering polymers
Axpoly high quality recycled engineering polymers are said to be suitable for injection molding. Created from a fully-integrated recycling process for end-of-life vehicles (ELV) and WEEE materials, all grades are said to be fully traceable from the end user polymer grade back to the origin of the source material. The company's control of the entire process is said to mean it can offer a consistent polymer supply and price stability because its cost of incoming raw material is not linked to volatile oil markets. Manufactured to strict quality standards, all Axpoly grades are REACH-ready and RoHS compliant. HIPS (high impact polystyrene), ABS, polypropylene (PP) and polystyrene (PS) grades can be customized to satisfy the demands of customers' application requirements, according to the company. They include Axpoly HIPS52 1009, suitable for a wide range of applications and recovered from automotive feedstocks, as is Axpoly ABS52 1000, a high-performance polymer said to be ideal for the specific needs of end-user applications, such as components for motor vehicles and other durable goods.

Axion Polymers

Post date: 6/21/2016

Rubber carbon blacks
Three rubber carbon black products are said to create more fuel efficient tires in response to consumer demand and federal standards for vehicle fuel economy. These grades are said to offer reduction in rolling resistance via narrow particle size distributions and lower sidewall hysteresis, and lower air permeation through the inner liner for better tire inflation consistency. Compared to standard ASTM grades, a carbon black with narrow aggregate size distribution is said to feature better in-rubber properties. Depending on the dispersive mixing technology, tread wear is said to improve by up to 13% with narrow ASD carbon black technology as compared to the current state of the art. For sidewall applications, blending Ecorax S 204 combined with N300 series grades is said to reduce sidewall hysteresis significantly, and thus lower rolling resistance and improve fuel efficiency, while maintaining other key tire propeties. Each compound can be individually optimized to find the best compromise. Ecorax S 204 is said to achieve the lowest hysteresis of any furnace carbon black, something that cannot be achieved with silica, while providing good reinforcement for natural rubber based products, according to the company. Ecorax S 206 is said to reduce air permeation through the inner liner by up to 25%, maintaining tire air pressure critical for vehicle safety and tire life in addition to fuel efficiency, according to the company.

Orion Engineered Carbons LLC

Post date: 6/21/2016

Surgical lighting polymers
Udel polysulfone and Radel polyphenylsulfone medical-grade polymers helped Medical Illumination International, a manufacturer of surgical systems and equipment, to design a more compact version of its MI-1000 surgical lighting unit. High-performance polymers form three injection molded components in the MI-750 LED lighting system, including a handle, a handle post and the lamp's yoke attachment. In addition to supporting stable placement of the lamp during surgery, Udel and Radel polymers are said to enable the molded components to deliver durable performance after frequent chemical disinfection and steam sterilization.

Solvay Specialty Polymers

Post date: 6/21/2016

Liquid injection molding
Liquid injection molding The KEG-2000-60 LIMS (liquid injection molding system) is used to manufacture silicone wrist bands. Offering dynamic viscosity, KEG-2000 products are said to exhibit higher viscosity under low shear stress (pumping and shut-off) and lower viscosity under high shear stress (injection). They are said to be engineered for outstanding performance in both open and closed-nozzle cold-runner systems. Additionally, the KEG-2000 series has consistent properties from batch to batch, excellent clarity, and ranges in durometer A hardness from 20 to 80, according to the manufacturer.

Shin-Etsu Silicones of America

Post date: 6/21/2016

Medical TPEs receive USP Class VI approval
Medical TPEs receive USP Class VI approval USP Class VI approval has been announced for a thermoplastic elastomer material designed for use in medical and biopharmaceutical applications. MT-1205l was developed to address the increasing demand for medical TPE tubing applications. This transparent elastomer is a high-purity compound with low leachables and extractables required for ensuring patient safety. Due to the material's flexibility, durability, neutrality and recyclability, it is said to be a desirable alternative to PVC and thermoset rubber for medical tubing. It also provides less gas permeability and more design flexibility than silicone, at a lower cost. Polymax MT medical materials have already gained acceptance in medical applications, according to the manufacturer. They have been approved for medical use due to their tactile feel, high level of transparency, kink resistance and ability to withstand various sterilization methods like gamma, ethylene oxide and steam. The medical grade materials are elastic, flexible TPE compounds said to have a unique tactile feel available in a hardness range from 70 to 92 durometer A. They passed cytotoxicity tests according to ISO 10993-5 and GB 14233 for medical use by the China Food and Drug Administration. The addition of USP Class VI approval to the company's material certifications is said to allow it to offer alternative solutions to the U.S. medical market for a variety of tubing and non-tubing applications. The company's product line includes materials appropriate for additional medical applications, including tourniquets, medical films, syringe plunger seals, drip chambers, connectors and test tube plug caps. These materials range in durometer A hardness from 35 to 95 and cover a broad spectrum of physical properties.


Post date: 6/21/2016

Liquid silicone rubbers
Three advanced bio-medical grade liquid silicone rubber materials are available in durometer A hardnesses of 40, 50 and 70. These high-performance products comprise the Silastic Q7-78XX series of elastomers. In addition, the company has launched the C6-7XX liquid silicone rubber series of materials for short term or non-implant applications with three initial products. These additions are said to further expand the company's portfolio of silicone elastomers, offering customers new possibilities for designing innovative, next-generation medical device applications. The silicone elastomers solutions share a uniform chemistry optimized at the molecular level. This uniformity is said to help ensure highly reproducible processing and performance across medical device designs.

Dow Corning

Post date: 6/21/2016

LSR dispensing systems
The Fluid Automation F4-5 and F4-55 liquid silicone rubber (LSR) dispensing equipment is offered for wearables applications. The Fluid Automation F4 series systems are designed to keep the dispensing of two-component LSR consistently precise, with two flow meters ensuring the material remains on-ratio. The F4-5 and F4-55 dispensing equipment is said to help reduce costs by eliminating off-ratio dispensing and therefore waste caused by non-cured products. The system's two flow meters are said to allow for constant oversight of dispensing ratios. If the system encounters an issue and off-ratio conditions exist, it automatically shuts down to prevent wasted material and unusable products.


Post date: 6/21/2016

Medical tubing polymers
Medical tubing polymers Medical-grade tubing compounds are offered, including Apex flexible PVC, Flexalloy PVC elastomers and Medalist thermoplastic elastomers. In addition, the company has developed Apex SCR stress crack resistant rigid PVC compounds for tubing connectors. Because its portfolio of medical tubing products is so diversified, the company can take a polymer-neutral approach to the support it offers customers, helping them to select exactly the right compound to meet a particular performance or regulatory requirement. The portfolio of Medalist elastomers was expanded to offer suitable alternatives to PVC, silicone and TPU for medical tubing. Thirteen standard and specialty compounds of varying hardnesses and offering a spectrum of physical properties are offered.

Teknor Apex

Post date: 6/21/2016

Silicone elastomer range
A wide range of silicone elastomers featuring outstanding properties that are used in many different applications in the energy sector, outperforming most other polymers through their high performance characteristics such as remarkable spreading capability coupled with outstanding resistance to extreme temperatures, UV and IR radiation, as well as many other external agents, is offered by the company. Bluesil products are said to be an adaptive toolbox with immense possibilities.

Bluestar Silicones

Post date: 6/21/2016

Strong silicone elastomers
With a tensile strength up up to 50% greater than existing silicone elastomers on the market, and a combination of material properties that make it not only strong, but also uniquely soft and pliable, the company's high strength silicone is said to pave the way for significant advancements in medical device design and performance. The platinum-cure silicone elastomers are said to provide device and component manufacturers with a super strong, low durometer, high elongation material without compromising hysteresis or tensile set. Devices can be made thinner, stronger and more resilient.

NuSil Technology LLC

Post date: 6/21/2016

Liquid silicone rubber
Silopren LSR RSH (reduced self-healing) is said to be capable of providing significantly reduced self-healing of valve slits and offers potential benefits to a wide range of valve and fluid-flow products in the food, medical and infant care industries. Silicone slit valves often experience sticking or self-healing issues when subjected to harsh conditions. On medical devices such as needle-free infusion systems, a risk with valve healing is decreased dose precision of liquid or fluid. The slitting design in both medical and food applications presents a challenge for manufacturers who often have to add a non-stick surface treatment to facilitate separation of the slit surfaces or provide special handling and storage instructions for valve opening. The Silopren LSR RSH series is said to have improved material properties that can help solve the self-healing issue of slit valves.

Momentive Performance Materials

Post date: 6/21/2016

Silicone gap filler for electronics applications
Silicone gap filler for electronics applications A heat-conducting silicone-based gap filler material has been introduced for the electronics industry. Available under the tradename Semicosil 961 TC, the silicone rubber is said to be ideal as an interface material for thermally connecting electronic circuits, ensuring effective heat management. The product is characterized by good flow and processing properties. Wear of the mixing and metering equipment used in its application is said to be low. With the silicone gap filler material, the company is expanding its portfolio of thermal interface materials. Semicosil 961 TC is a highly filled, two-part silicone rubber that cures at room temperature via a platinum-catalyzed addition reaction to form a soft silicone elastomer with a tacky surface. The cured rubber achieves a thermal conductivity of two watts per meter kelvin and, at the same time, is electrically insulating. Before it cures, Semicosil 961 TC is a non-sag material. However, its viscosity decreases with increased shearing, for example during mixing and metering. Its shear-thinning property is adjusted so that the silicone rubber can easily be fed by machine and applied as a bead. Processors can achieve a high metering rate and very high dosing accuracy, according to the company. Semicosil 961 TC is said to ensure optimum heat transfer from the electrical circuit to a heat sink. In practice, the gap filler is first applied to the heat sink. The circuit board is then pressed on or fitted by means of a vacuum process. During compression, a continuous film forms that conforms snugly to the surfaces of the two joining parts. In this way, surface irregularities and tolerances can be evened out perfectly, according to the company. Furthermore, the film maximizes the contact area and thus promotes heat transfer. The film cures to form a silicone layer between the joining parts. Thanks to its soft consistency, it ensures a reliable, tight fit, even if there are frequent temperature changes and vibrations.

Wacker Chemie AG

Post date: 6/21/2016

Water-based primers
Water-based primers for the Chemlease and Zyvax brands create a full water-based release system for composites manufacturers. Specially formulated to overcome challenges in wind, aerospace and fiber-reinforced plastics markets, the primer series is currently available in most countries. The series joins the company's existing water-based product portfolio, including Chemlease and Zyvax release agents, cleaners, sealers, topcoats and now primers. Available as a complete system for the composites industry, the water-based products are said to optimize new and used tool surfaces to enhance performance through increased release ease, extended tool life and reduced HSE (health, safety and environment) impact. Additional benefits are said to include imparting a high gloss on the tool surface for high-quality finished parts, lower VOCs, longer periods between top-coat touch-ups, and more.


Post date: 6/21/2016

Polymer additives
Additives are designed to provide greater processing and performance capabilities for compounders, processors and end users. TR 063A is a highly-efficient lubricant and viscosity reducer for nylon 6 and nylon 6,6 compounds. The product boasts a novel chemistry which makes it highly compatible with polyamides and is superior in performance to alternative lubricants such as Montan ester waxes, according to the company. TR 063A can be added directly at the compounding stage or by the processor during part manufacturing. In pellet form, it can be easily added to extrusion or injection molding machines. TR 044W provides a combination of viscosity reduction and mold release characteristics for polycarbonate resins and compounds. Loading levels as low as 0.2% result in increased melt flow and allow for significant improvements in mold filling and release, according to the company. Processors using TR 044W in clear applications will see minimal haze development even at higher loading levels. The improved processability can result in lower molded-in stress in injection molding applications that often are said to mean better part performance.

Struktol Company of America

Post date: 6/21/2016

Preform manufacturing
Products and manufacturing technologies are available for the large volume production of structural parts for the automotive industry. A CFRP reinforced body in white parts is made with HexPly M77 preforms from the company's automated process. The preforms' low tack allows for automated handling by the customer. They require no surface preparation and are designed for one-step bonding and curing in a press, requiring no finishing operations. Common BIW part joining technologies such as welding can be used, and the parts are said to be compatible with e-coating processes. The company's HexPly M77 resin cures in two minutes at 150°C, or 1.5 minutes at 160°C, and is available as HexPly M77 prepreg or as HexMC molding compound, which is said to be ideal for complex shapes. The gel time of M77 allows the resin to quickly flow into mold contours to achieve precise geometries, and the high Tg of 130°C enables cured parts to be demolded while warm for faster production cycles. Building on the attributes of HexPly M77, the company has installed a fully automated production line in Austria that converts UD prepreg into 2D preforms in seconds.


Post date: 4/13/2016

Automotive thermoplastics
Recent modifications to ECE R43 regulations are said to make Acrylite Resist AG 100 an ideal material for small quarter car windows. Prior to the regulation modification, requirements called for a coating to consist of scratch resistant materials. The highly transparent PMMA brand is said to offer the highest surface hardness of all thermoplastics, even without a coating, while offering a freedom of design that cannot be realized with glass, according to the company. Acrylite Resist AG 100 can be injection molded into almost any imaginable 3D shape. Panels can be produced with built-in wind deflectors and sharp angles, and the panels can be wraparound, according to the company. Based on the new regulation, Acrylite Resist AG 100 requires no additional coating for manufacturing a small panel because, unlike other transparent thermoplastics, the material is inherently resistant to UV light and weathering, allowing the panels to be manufactured in a single step. The modifications relate to all windows made of plastic that do not affect the driver's view. The surface area must be small enough that a circle of 150 mm diameter does not fit in the windows and the overall panel size must not exceed 200 cm2.


Post date: 4/13/2016

Automotive compounds
A manufacturer of rubber, latex and plastic has launched the Pulse XT line of PC-ABS products aimed at providing lightweight and cost-effective solutions for exterior automotive applications suitable for a variety of applications such as roof spoilers, side mirrors, mirror housings, roof bows, front grills, front bumper grills and spoilers. Full-thermoplastic lift gates are also provided by the company. The Pulse XT series is said to stand out with a density advantage of up to 10% versus competitive PC-PET solutions, allowing for considerable weight savings, according to the company. These PC-ABS blends are said to meet the latest OEM exterior material specifications and allow for high gloss exterior paintability specifications. The Pulse XT9215 was recently used in the first very low CLTE roof rail application. Pulse XT7215, in particular, is said to provide a very low CLTE performance at easy flow and a low density, enabling up to 10% weight reduction for lighter parts and optimized costs. Pulse XT resins are designed for easy flow which improves cycle time, providing enhanced energy efficiency during the molding cycle. Pulse XT is said to be especially suited for high gloss painted, premium quality components due to the easy processability and high gloss finish.


Post date: 4/13/2016

Lightweighting materials
Working together with OEMs and suppliers to identify new solutions to the challenges of reducing vehicle emissions through lighter, stronger materials is said to be the company's commitment. As manufacturers continue to look for cost-effective ways of bringing lower emissions and more fuel-efficient cars to market, the company offers several solutions, including opportunities to reduce vehicle mass without compromising safety through the use of Vizilon thermoplastic composites in different structural applications; significant costs savings and performance gains through the use of Hytrel thermoplastic elastomer in jounce bumpers as a replacement for incumbent foam polyurethane; and the latest applications of the firm's portfolio of high temperature tolerant materials such as Zytel nylon resin, and Hytrel and Vamac ethylene acrylic elastomer to enable the downsizing of engines. In addition to product specific initiatives, the company can provide first-hand perspectives on recent advances in computer-aided predictive engineering, and its huge potential for design, performance, emissions reduction, cost savings and safety. The company provides thermoplastics, elastomers, renewably-sourced polymers, and more.


Post date: 4/13/2016

Tech center develops micronized rubber powders
Tech center develops micronized rubber powders Tire developers must take into account cold weather, hot weather, rain, ice, potholes and precious cargo. Understandably, introducing a new material or chemistry into a tire can require long sales cycles, extensive testing and working with skeptical customers who need to see lots of data from experiments that are sound in concept and flawless in execution. This company has created the Application and Development Center (ADC). The ADC is said to be the only technical center dedicated to the development of advanced material solutions based on micronized rubber powders (MRP), such as MicroDyne and PolyDyne. The ADC staff is responsible for developing, processing and testing novel formulations in a variety of applications, across a range of industries. The staff counts on experience from some of the world’s leading chemical and technology companies, including Goodyear, Firestone, Cabot, Dow, Arkema, ICI, Bayer, Rohm & Haas, Synthos, FXI, Sumitomo, IBM, Rubbermaid, Shell, W.L. Gore and Sasol. In addition to responding to customer requests for technical support, the ADC drives technological innovation and functions as an “open innovation” hub, integrating a dynamic mix of internal and external testing, licensing, joint development and expert consultants. The ADC drives sustainable innovation in the following areas: • Advanced tire and rubber compounds: In the arena of novel tire rubber, the firm focuses on expanding the renewable content of tire rubber to 20% or more of all rubber compounds used in tires. Current programs include the development of high performance sidewall compounds incorporating PolyDyne MRP. • Functional rubber compounds: EkoDyne functional compound (still in development) has demonstrated the potential for improved fuel economy in low rolling resistance tread compounds. In addition, it can be used at higher loadings than traditional materials. EkoDyne’s unique microstructure and functionality enable it to be used in high performance applications. • Modified asphalts: RheoPave asphalt modifier is the result of an open innovation license with Rheopave LLC, and when used in conjunction with MicroDyne MRP, is said to help deliver cost, performance and sustainability in hybrid asphalts. • Thermoplastics and thermoplastic elastomers: The ADC has developed novel Zenoflex masterbatches used for injection molded components serving the construction and automotive markets, including custom formulations tailored to individual customer requirements. • Polyurethane foams and coatings: Novel controlled-distribution MRP products such as MicroDyne MD-408 and MicroDyne MD-188 are said to be very helpful in achieving consistent viscosity control in liquid systems such as polyols. ()

Lehigh Technologies

Post date: 4/13/2016


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