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Akrochem

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Product Spotlight

TPE/TPV compounds
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Rubber World's Product News Online

Equipment | Materials | Instruments | Hardware/Software | Services

 
 
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

 
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

McLube
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

 
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

Struktol
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

 
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

McLube
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

 
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

Struktol
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

 
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

McLube
Polyether-based PU foam
I-Series, the latest expansion in the HyPUR-cel foam family, is a microcellular polyether-based polyurethane foam technology featuring a wide variety of density and firmness options. This technology is said to boast exceptional high temperature compression set performance and highly favored compression fatigue performance. I-Series is said to be a cost-effective alternative to many products on the market today, and will be initially offered in a density range from 7 to 20 pounds per cubic foot. The company is said to offer a unique portfolio of microcellular polyurethane foams to meet demanding requirements across a diverse range of applications, including HyPUR-cel high resilient foams and Viscocel viscoelastic foams.

Rubberlite
www.rubberlite.com

Post date: 11/4/2016

 
Polyurethane dispersions
Polyurethane dispersions Two polyurethane dispersions are designed as fiber sizing for reinforced composites in automotive under-the-hood applications. Hydrosize Link dispersions react directly with the matrix resin, delivering exceptional composite performance under extreme exposure to water, ethylene glycol and high temperatures, conditions increasingly typical in the narrow confines of modern engine compartments, according to the company. The Hydrosize Link U470 and U480 fiber sizings are said to be testaments to the firm's intense focus on polyurethane synthesis and controlled manufacturing.

Michelman
www.michelman.com

Post date: 11/4/2016

 
Purging compound for TPE injection molders
Purging compound for TPE injection molders Asaclean, a commercial purging compound for thermoplastic injection molders and extruders, has introduced a UF2 grade purging compound, said to be ideal for blown and cast film extrusion applications, as well as injection molding. Like all Asaclean products, the UF2 grade purging compound is said to enable faster changeovers for reduced equipment downtime, resulting in increased productivity and greater cost savings for manufacturers. In order to increase efficiency and productivity, processors look to accomplish several goals, including fast color and material changes, and effective removal of color and carbon contamination, according to the company. UF2 grade compound achieves these objectives, as it can be purged through a die without removing it, can effectively remove gels and contamination that is not carbonized, and is said to have excellent compatibility with PE resins. UF2 grade purging compound is recommended for color changes, material changes, hot runner cleaning and shutdown/sealing. Use of UF2 grade compound requires less product than competing products and results in quicker cleanup. With a processing temperature range of 170-320C (340-610F), Asaclean's UF2 grade requires 0.0004" (0.01 mm) clearance for hot runner gates and extrusion dies. UF2 grade can pass through as tight as 200-mesh extrusion screen packs when only one layer of mesh is used. The extrusion process, unlike injection molding, is a continuous process. Purging procedures for thermoplastic extruders must be performed often to avoid issues with product waste, untimely breakdowns and production downtime, according to the company.

Asaclean
www.asaclean.com

Post date: 11/4/2016

Struktol
Pure precipitated silica
Ultrasil high purity precipitated silica is used as reinforcing fillers for the rubber industry worldwide. An array of products is offered for the mechanical rubber goods industry that, owing to different specific surface areas, are able to provide varying degrees of reinforcement and processability. Higher surface area products like Ultrasil VN 3 and Ultrasil 7000 assist in making mechanical rubber goods with particularly high requirements related to hardness, tensile strength, tear resistance and abrasion resistance, such as conveyor belts. Lower surface area products, such as Ultrasil 360 and Ultrasil 880, create mechanical rubber goods with low compression set and excellent processing properties, making them ideal for extrusion, calendering and injection molding applications, according to the company. The firm also offers many Ultrasil precipitated silica products as mechanically compacted granulates. On account of the granulation process, it is said to lead to less dust development during handling and mixing. Also available from the company are rubber organosilanes which are used in a variety of formulations containing reinforcing fillers in the mechanical rubber goods industry.

Evonik Industries
www.evonik.com

Post date: 11/4/2016

 
Processing aids
This developer and producer of high-performance release agents, purging compounds and other ancillary molding products announces additional health, safety and environment benefits of its Chemlease EZ Series product line, including semi-permanent sealers, release agents and cleaners for all composites applications worldwide. The EZ Series already complies with the Environmental Protection Agency's National Emission Standards for Hazardous Air Pollutants (HAP), which aim to further reduce hazardous air pollutants that are known or suspected to cause cancer or other serious health effects. Beyond a HAPs-free formula, the EZ Series is also said to deliver an array of application and production benefits for preparing composite mold surfaces for increased efficiency and quality, according to the manufacturer. (Chem-Trend)

Chem-Trend
www.chemtrend.com

Post date: 11/4/2016

 
Tire oils, plasticizers, etc.
Mineral oil based plasticizers, technical white oils, antiozone waxes and plasticizers from oil seed derivatives are offered. Mineral oil plasticizers are all suitable to extend rubbers and their compounds. The individual applications depend on the polarity of the oil and rubber to achieve the optimum compatibility. That means for high styrenic compounds, e.g., tire treads, TDAE is said to be the optimal choice regarding low toxicity oils.

H&R Group
www.hur.com

Post date: 11/4/2016

McLube
Tire release agents
Lyndcoat BR2430 semi-permanent inside paint and bladder coatings can be tailor-made to fit manufacturers' processes and meet their needs for productivity, quality and reliability. Lyndcoat BR2430 has been developed to achieve the lowest ever defect rates. Combining outstanding and durable slip performance with the highest air evacuation promotion and rub-off resistance, it is said to greatly reduce the occurrence of buckled and pinched bladder defects and favors curing of perfectly symmetrical tires. Lyndcoat BR2430 was developed to insure durable release between tire and bladder, according to the company. Highest release numbers are said to allow for reduced tire paint-shop occupation, lowest workforce requirements and reduced material costs. Lyndcoat BR2430 is said to be particularly low odor and easy to spray. It is colorless and fully transparent when dry, and does not present an oily surface aspect. Lyndcoat BR2430 is said to allow for strongly reduced build-up on bladder and metal parts of the mold, allowing for highly reduced mold pollution, and therefore less down time.

Bluestar Silicones
www.bluestarsilicones.com

Post date: 11/4/2016

 

 
 
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