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Akrochem

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Synergistic additives for flame retardant elastomers
It is very common today to rely on a number of ingredients that are added together in an elastomeric compound to create a flame retardant product. These classical ingredients typically can be of one or two different classes of chemicals, either halogen containing or halogen-free. The classical synergism on the chemical side is the age-old antimony oxide that must be paired with a halogen donor at a 1:3 ratio as the antimony trihalide (chlorine or bromine) is the key active ingredient. This active ingredient acts by inhibiting chain branching free radical reactions in the gas phase of the fire. It is not uncommon to rely, as well, on zinc borate (Firebrake ZB) which can synergistically react with antimony oxide (by partial replacement) as well with halogens. The zinc borate alternately reduces the amount of smoke generated by increasing char and giving off water of hydration to quench the flame. Rio Tinto, our supplier, confirms after recent research that zinc borate is a unique multifunctional fire retardant synergist that enhances effectiveness of existing fire retardant systems significantly by reducing fumes and smoke, as well as suppressing afterglow. This is in conjunction with, and without, antimony oxide, and is due to its capability to act synergistically on a multitude of fronts. In addition, it is known that aliphatic chlorinated paraffins, (Dover’s Paroil and Harwick Standard’s CPW-100), when added to a system can act to replace at least a portion of the process oil that might be present, thereby aiding in reduction of the ignition of organic compounding ingredients. We also need to consider the ingredients that are added at fairly high levels in halogen-free systems, as they are quite efficient in the physical sense as flame retardant additives. First, phosphorus containing products play a large role in flame retarding elastomeric systems. It is very common to utilize organophosphorus compounds to replace a portion of the plasticizer content, namely phthalates, paraffinic or naphthenic process oils. They work in the gas, as well as the condensed phase of a fire scenario. It has recently been determined that the newer alkyl diphenyl type phosphates, such as ICL’s Phosflex 375, is best to replace the standard isopropylated diphenyl types, Phosflex 41L, due to recently determined HS&E issues. In addition, hydrates and hydroxides, namely Polyfil ATH from Custom Grinders, is commonly used in elastomers to quench the flame by giving its water of hydration. For higher processing temperature applications, magnesium hydroxide functions as a flame retardant and a smoke suppressant when used at high levels in some elastomer and plastic compounds. They can be used alone or with zinc borate, and have been shown to have synergistic effects. During compound development, on one front, it is not uncommon to utilize a combination of chemical and physical reactions and the synergistic relationships to create compounds. In applications such as highly loaded EPDM roofing where one could utilize antimony oxide, chlorinated paraffins, zinc borate and fillers to aid in developing a compound that passes stringent flame retardant requirements. Today, however, it might be more common and suggested to take advantage only of the physical interactions and create a similar flame retardant compound utilizing phosphate esters, ATH, zinc borate and fillers to create a similarly flame retardant product to be used in a myriad of industrial applications.

Harwick Standard Distribution
www.harwickstandard.com

Post date: 8/20/2015

 
Color management
Two X-Rite color management solutions have been implemented, including PantoneLIVE and ColorCert. These solutions are said to support the company's role as a provider of superior color management services to high profile clients around the world. PantoneLIVE is a cloud-based ecosystem where digital color palettes reproducing the colors' digital DNA can be centralized and shared by all stakeholders in a color supply chain.

Diadeis
www.diadeis.com

Post date: 8/20/2015

 
Perfluoroelastomers
Peroxide-curable perfluoroelastomers (FFKMs) are offered for fabricating components that will be exposed to ultra-high temperatures. Aflas PM-1100 and Aflas PM-3000 resins are said to be ideal for o-rings, gaskets, oilfield seals and packings, and semiconductor parts and components because they remain thermally stable up to 270°C, resist aggressive chemicals and provide excellent electrical insulation properties. These resins were developed for use in demanding applications in the oil and gas, chemical process, industrial equipment, food handling, pharmaceutical, heavy duty diesel and automotive industries. The chemical structure of Aflas PM-1100 and PM-3000 is derived from tetrafluoroetheylene and perfluoroalkyl vinyl ether, which are said to offer the ultimate resistance to chemicals, oils and solvents.

AGC Chemicals Americas
www.agcchem.com

Post date: 8/20/2015

McLube
Conductive carbon blacks
Conductive carbon blacks and graphites for polymers are offered to this company's customers who are compounders mixing for the plastics, rubber, power cable, coatings and paints or PTFE industries. These customers serve various end applications like electronic packaging, semi-conductive power cables, fuel hoses, flooring, conveyor belts, heat exchangers, seals and water meters. In these applications, carbon materials like conductive carbon blacks, primary synthetic and natural graphite powders, calcined petroleum coke and water-based dispersions are widely used as key ingredients. This company's products are said to provide the key characteristics required by these applications, for example electrical conductivity, thermal conductivity, lubrication, anti-wear, high purity and surface smoothness, etc.

Imerys Graphite & Carbon
www.imerys-graphite-and-carbon.com

Post date: 8/20/2015

 
Emulsion styrene butadiene
Relflex Stylamer SBR 1502 is an emulsion styrene butadiene rubber produced by cold polymerization using a mixture of rosin acid and fatty acid soaps as emulsifiers, and is stabilized by a non-staining antioxidant. SBR 1502 is said to exhibit excellent tensile strength, abrasion resistance, good mechanical properties and good resistance to polar solvents, dilute acids and bases.

Akrochem
www.akrochem.com

Post date: 8/20/2015

 
Anti-tack coatings
For more than 50 years, anti-tack or anti-block coatings have been shipped to the rubber industry as water-based slurries and dispersions. The water content of these products ranges from 50-60%. Considerable freight savings could be realized industry-wide by eliminating the water from these products. This company has accomlished the task. Dry OverCoat products are said to save plant storage space, eliminate winter-time freezing; eliminate product thickening in storage prior to use; eliminate drum/tote disposal; eliminate product spoilage in storage prior to use; and extend product shelf life. Some of the firm's dry anti-tacks need to be hydrated prior to use. The hydration process is said to be easily and automatically performed by the company's patent-pending Constituter unit.

Superior Formulations LLC
www.superiorformulations.com

Post date: 8/20/2015

Struktol
Aliphatic urethane acrylate
CN9030 is a difunctional aliphatic urethane acrylate. When paired with a corrosion-resistant base coat, CN9030 can be used to provide a weatherable top coat in high-performance UV/EB-cure coating applications. This oligomer is said to produce strong, flexible films and demonstrates adhesion to challenging substrates like metals and plastics, according to the company. When tested for adhesion, CN9030 is said to significantly outperform typical epoxy and polyester acrylate oligomers in a variety of substrates. It is resistant to harsh chemicals, such as methyl ethyl ketone (MEK), and is said to exhibit excellent gloss retention.

Sartomer
www.sartomer.com

Post date: 8/20/2015

 
EPDM rubber products
Keltan 9565Q is an ethylene propylene diene rubber that can really compete with natural rubber, which is susceptible to aging. This grade is said to be characterized by its exceptionally high molecular weight, which gives the synthetic rubber its extremely high NR-type strength and resilience. Nonetheless, as a saturated polymer, this grade also still features the heat, weathering and ozone resistance typical of EPDM rubber. Keltan 9565Q is said to be superior to NR in terms of heat aging and in dynamic applications.

Lanxess
www.lanxess.com

Post date: 8/20/2015

 
Polychloroprene latex
In the wake of the FDA's warnings about latex-free claims, many consumers of gloves, bladders, breathing bags and other devices have been seeking additional information about the raw materials that go into their products. Polychloroprene is a high performing synthetic rubber which can be used as an alternative to natural rubber. Polychloroprene latex is used in such medical products that come in contact with humans to reduce the risk of Type 1 allergy reactions. Polychloroprene latex is available in many different grades in order to directly mimic natural rubber latex products or to obtain higher performance for certain applications. In addition to reducing Type 1 allergy risks, polychloroprene offers similar elasticity, flexibility, water resistance and dexterity as compared to natural rubber latex. The company has specifically designed a few grades of polychloroprene, specifically 753 and 752, to replace natural rubber for certain applications.

Showa Denko
www.showadenko.us

Post date: 8/20/2015

McLube
EPDM meets NSF/ANSI 61 potable water standards
EPDM meets NSF/ANSI 61 potable water standards Timing is said to be everything, and although NSF/ANSI Standard 61 became prevalent almost 25 years ago, very little in the form of enforcement was apparent until recent years. With requests at an all-time high, this firm is said to answer the call with its NSF/ANSI Standard 61 compliant EPDM for potable water. As of January 4, 2014, it is illegal to install products in drinking water applications that do not meet all NSF/ANSI 61 requirements. The law is administered through the EPA. Regulatory enforcement is mandated by each state. In the past, many bids for applications in and around potable water were won by using non-compliant, low cost and often imported sheet. The issue with using just a generic imported red SBR gasket in these applications is the danger of leaching harmful contaminants into the water supply and in turn the environment. The new standard is much more exacting; and more vigilant as state agencies enforce the standard and report to the EPA with their water quality reports posted for the public. Fines may also be issued. However, the cost of removal and replacement of the non-compliant material is often more punitive than the fine itself. When one considers that violations are posted clearly for public viewing on the EPA website with full disclosure of the company names and individuals, the risks are said to far outweigh any potential financial gains. Not only does compliance with the NSF/ANSI Standard 61 certify this company as the leader in the market for specification grade materials, but it will allow the firm's customer's and distributors to meet the high industry standards with a quality product from the reliable source they have known for over 100 years. With NSF/ANSI Standard 61 compliant product available from the company's eight North American warehouses, the firm is said to be contributing to the elimination of contaminants or inpurities that can leach into drinking water, causing adverse health effects and negatively impacting the environment. This company is a manufacturer of sheet rubber, uncured rubber, flooring, footwear products and truck flaps. The firm is both ISO-9001 and ISO-14001 certified.

American Biltrite
www.american-biltrite.com

Post date: 8/20/2015

 
Methacrylate coagents
The high reactivity of the company's coagents is said to bring significant improvements, such as higher cure rate to optimize productivity and an increased state of cure to maximize final rubber performance. The unique chemistries of these products is said to allow formulators to achieve superior rubber properties like hardness, elongation, tear resistance and compression set. The company has also designed unique scorch protected coagents through the Saret product line, giving high scorch safety while maintaining cure rate and performance. The firm's new generation coagent, SRDFM, has been especially developed to combine the key benefits of the allyl and methacrylate dual functional structure. It is said to allow cure and processing benefits, as well as an excellent set of mechanical properties to rubber compounds, when compared to the addition of triallyl cyanurate.

Sartomer
www.sartomer.com

Post date: 7/22/2015

 
Conductive gap fillers
TC-4525 thermally conductive gap filler is said to meet the fast-growing global demand for improved processability and thermal management in automotive electronics applications. This high-performing silicone technology is said to deliver thermal conductivity of 2.5 W/m.k, greatly improved dispensability, significantly reduced abrasiveness and stable performance for more reliable electronics in harsh automotive underhood environments, according to the company. TC-4525 thermally conductive gap filler is a soft, compressible, two-part silicone that can be dispensed directly from its original packaging with minimal to no additional process preparation, and is well suited for automotive dispensing.

Dow Corning
www.dowcorning.com

Post date: 7/22/2015

Struktol
Conductive gap fillers
TC-4525 thermally conductive gap filler is said to meet the fast-growing global demand for improved processability and thermal management in automotive electronics applications. This high-performing silicone technology is said to deliver thermal conductivity of 2.5 W/m.k, greatly improved dispensability, significantly reduced abrasiveness and stable performance for more reliable electronics in harsh automotive underhood environments, according to the company. TC-4525 thermally conductive gap filler is a soft, compressible, two-part silicone that can be dispensed directly from its original packaging with minimal to no additional process preparation, and is well suited for automotive dispensing.

Dow Corning
www.dowcorning.com

Post date: 7/22/2015

 
Conductive gap fillers
TC-4525 thermally conductive gap filler is said to meet the fast-growing global demand for improved processability and thermal management in automotive electronics applications. This high-performing silicone technology is said to deliver thermal conductivity of 2.5 W/m.k, greatly improved dispensability, significantly reduced abrasiveness and stable performance for more reliable electronics in harsh automotive underhood environments, according to the company. TC-4525 thermally conductive gap filler is a soft, compressible, two-part silicone that can be dispensed directly from its original packaging with minimal to no additional process preparation, and is well suited for automotive dispensing.

Dow Corning
www.dowcorning.com

Post date: 7/22/2015

 
Conductive gap fillers
TC-4525 thermally conductive gap filler is said to meet the fast-growing global demand for improved processability and thermal management in automotive electronics applications. This high-performing silicone technology is said to deliver thermal conductivity of 2.5 W/m.k, greatly improved dispensability, significantly reduced abrasiveness and stable performance for more reliable electronics in harsh automotive underhood environments, according to the company. TC-4525 thermally conductive gap filler is a soft, compressible, two-part silicone that can be dispensed directly from its original packaging with minimal to no additional process preparation, and is well suited for automotive dispensing.

Dow Corning
www.dowcorning.com

Post date: 7/22/2015

McLube
Engineered adhesives
Engineered adhesives Chemlok 6270 is an adhesive said to offer improved bonding performance and mold fouling, as well as premium environmental and prebake resistance. Developed to improve process efficiency and quality in manufacturing applications, Chemlok 6270 likely uses include seals, gaskets, bushings, mounts, industrial tires, rolls and rollers, as well as seismic and bridge bearing pads. With capabilities of bonding uncured rubber-to-metal substrates during the vulcanization of the elastomer, Chemlok 6270 bonds a variety of rubbers, including natural rubber, nitrile and EPDM to multiple substrates, including aluminum, brass and grit blasted or phosphatized steel when used in combination with Chemlok primers. During technical evaluations for mold fouling, Chemlok 6270 exhibited low pull values after cycling, indicating low mold fouling potential, according to the company. In addition, Chemlok 6270 is said to have demonstrated low part weight loss, revealing low mold fouling and staining effect.

Lord
www.lord.com

Post date: 7/22/2015

 
Instant slab dips
OverCoat slab dips, based on conventional calcium and zinc stearate, calcium carbonate and kaolin, are said to provide enourmous freight savings, significant savings in floorspace, vastly improved convenience and complete elimination of product spoilage, the need to protect from freezing, and having to recycle drums and totes. The OverCoat slab dips are said to provide a uniform coating and outperform conventional slab dips. OverCoat slab dips do not foam, settle or waste floor space with drums and totes primarily full of someone else's water. While dips based on calcium carbonate or kaolin have been available in dry form for years, no one had developed a successful dry stearate-based dip, according to the company. The OverCoat slab dips are shipped dry and hydrated on-site.

Superior Formulations LLC
www.superiorformulations.com

Post date: 7/22/2015

 
Polymer modification
Performance chemistries for plastic and fiber formulations include Elastamine and Jeffamine polyetheramines. These can be used to improve mechanical properties and low temperature characteristics like the elasticity and flexibility of thermoplastics, including polyamides, polyesters, polyolefins and polyimides. They can also be used to enhance the hydrophilicity, surface energy and polarity of plastics and fibers for improved static dissipation, dyeability/paintability and interpolymer adhesion. From a pigments and additives perspective, the company produces a broad range of specialty pigments, additives, fillers and extenders with diverse functions to meet the needs of the plastics industry, including Sachtleben and Tioxide pigments.

Huntsman
www.huntsman.com

Post date: 6/29/2015

Struktol
Engineering thermoplastic
Arlon 3000 XT engineering thermoplastic was developed in partnership with Evonik Industries to deliver enhanced performance in extreme high-temperature environments, such as fire seals. The technology is based on Evonik's Vestakeep PEEK polymer platform, which is said to be particularly suitable for applications that must meet extremely high mechanical, thermal and chemical requirements. As a result of the collaborative partnership between the companies, a new industry standard for thermoplastics performance is said to have been set. Material issues that can result from demanding, high-temperature aerospace applications can be minimized through the use of Arlon 3000 XT, which features enhanced performance and superior mechanical property retention at 350°F (177°C) to 600°F (316°C).

Greene, Tweed
www.gtweed.com

Post date: 6/29/2015

 
Pelletized zinc oxide
Pelletized zinc oxide Pelletized zinc oxide products are offered in six grades. Each is formulated for specific applications. The product is manufactured using the company's high-efficiency drum style pelletizer. Pellet size and density can be precisely controlled to match individual needs. Pellets are freer flowing, allowing faster processing times and less dusting versus powdered zinc oxide, according to the company. Pellet production capacity at the firm is in the 30 million range per year. Samples and production volumes of zinc oxide are available. Because of the drum style production method with multiple screens, additional binding agents or pinch rollers are not required, according to the company. The pellet form is said to be preferred in the rubber, tire, glass and chemical markets. The firm offers zinc oxide grades for the rubber, tire, chemical, oil additives, electronics, plastics, paint and coatings, tape and adhesives and other markets.

Zinc Oxide LLC
www.zn-oxide.com

Post date: 6/29/2015

 
Polyethersulfone grade
Veradel 3300 SL 30 polyethersulfone is said to be a tough, high-performance resin designed to meet the growing global demand for advanced polymers that can improve automotive powertrain efficiency and reduce carbon emissions. Formulated to replace metal in automotive applications prone to friction and wear, such as oil pumps and exhaust gas recirculation systems, the material is said to offer wear resistance and low coefficent of friction in both dry and lubricated environments. An injection moldable material, Veradel 3300 SL 30 PESU is formulated with a ternary anti-friction/anti-wear additive system comprised of carbon fiber, graphite and polytetrafluoroethylene.

Solvay Specialty Polymers
www.solvayspecialtypolymers.com

Post date: 6/29/2015

McLube
Antioxidant additive
Paratherm AP (antioxidant protection) additive is designed to be added to operating hot oil systems to extend the oil's useful life. Acids are said to be the cause of the most common hot oil system problem, namely sludge. When expansion tanks are installed and operated properly, the oil stays cool and acid formation is very slow. However, some expansion tanks are not installed properly. Sometimes the expansion line is insulated or is less than 4' long. Warm-up valves are left open or sunlight hits a tank that is painted a dark color. These can cause the tank to run hot enough to form acids when the oil reacts with oxygen. And once the acid number reaches 0.3-0.4, carbon starts to form. Paratherm AP additive is said to interrupt this sequence.

Paratherm
www.paratherm.com

Post date: 6/29/2015

 

 
 
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