- Email: [email protected]
Axel adds to process aid and release agent ranges
Additives for Polymers
September2004
MATERIALS
its new subsidiary Glass Coatings & Concepts, LLC.
Shepherd Color extends line of IR-reflecting pigments
Contact: Shepherd Color Co, 4539 Dues Drive, Cincinnati, OH 45246, USA; tel: +1-513-8740714; fax: +1-513-874-5061; URL: www.shepherdcolor.com
Shepherd Color has added to its Arctic® infrared-reflective pigment line, launched last year [Additives for Polymers (ADPO), September 2003], with the introduction of Brown 10P857. The company says the new pigment is a clean, red-brown shade that can be used in a wide variety of plastics applications where highly chromatic and durable colour is essential. According to Shepherd Color, trends in the building, construction and automotive industries demand colours that simulate wood finishes, as well as darker, earthier tones. Brown 10P857 reportedly offers a “highly robust yet economic way to incorporate colour” into even the most demanding projects where iron oxides, typically used to match such colours, do not meet requirements or cannot be used. The brown pigment is said to have excellent weathering performance making it highly suitable for any exterior application. The company says that the movement to the use of lead-free stabilizers in PVC is placing limits and constraints on the use of traditional iron oxide pigments, and that Brown 10P857 is an ideal replacement. In addition to its durability, Brown 10P857 has a low heat build-up of 25°C in its mass-tone, making it useful for the darker colours that are currently in demand. The new pigment is also reported to have outstanding heat stability, capable of withstanding the “extreme demands of pigment performance when processing engineering polymers”. Brown 10P857 has wide compatibility with all polymer types and alloys, is very easy to disperse and provides the best colour consistency available, Shepherd says. The company believes the pigment will be especially beneficial to the vinyl industry because of its lower utilization costs, dispersibility characteristics, low heat build-up and high IR reflectivity, durability and the proven performance of the CI Pigment Brown 33 chemistry. In other recent company news, Shepherd Color has acquired the Ceramic and Glass Division of General Color and Chemical, and has renamed
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Techmer PM formulates super-clear antiblock for packaging Techmer PM has developed a new super-clear formulation of its antiblocking agent for extruded films, pouches and bags. Techsperse™ PM11840E4 antiblock is said to offer an “unsurpassed”, sparkling clarity for product packaging and marketing applications where visual appeal is critical. The new antiblock additive meets FDA requirements for use with all foods and medical products. It is provided in a proprietary polyolefinbased carrier resin that can be processed at temperatures up to 221°C. As an extruded film cools, Techsperse PM11840E4 is in the film’s surface creating a super-transparent antiblocking film with reduced sticking and friction, which is especially important for films that will be used with high-speed packaging equipment. To assure maximum clarity and freedom from haze, the manufacturer says the pellets should not be stored for more than six months. A strict first-in, first-out usage pattern is therefore recommended. Loading levels will vary for different films and package designs. Techmer PM says it will work with customers to develop individual recipes that optimize consumption on this premium additive. Contact: Techmer PM, 1 Quality Circle, Clinton, TN 37716, USA; tel: +1-865-4576700; fax: +1-865-457-3012; URL: www.techmerpm.com
Axel adds to process aid and release agent ranges Axel Plastics Research Laboratories has introduced a new process aid additive specifically to improve colour consistency and enhance throughput in the manufacture of plastic automotive parts.
September 2004
MoldWiz INT-435PAD is designed to improve the dispersion of fillers and pigments during the extrusion process, while also increasing product flow, the company says. INT-435PAD – a proprietary mixture of unsaturated fatty esters and organic acid derivatives – is claimed to be “extremely beneficial” in the processing of ASA/PC alloy (acrylonitrile-styreneacrylonitrile + polycarbonate), a key plastic used to make automotive parts. Production of exterior auto parts typically yields many exhibiting colour inconsistencies such as swirls and shadows because of poor colour dispersion, resulting in part rejection. In addition, poor release of parts from the mould cavities has also been a source of production losses, Axel says. However, pretreating the pigment-containing masterbatch with INT435PAD at an addition level of 0.5%, and processing at 220–240°C before adding to the base resin, achieves uniform colour and facilitates good fill and easy ejection from the mould, according to the company. Its use also increases extruder throughput by reducing screen pack and providing easy flow properties, particularly in heavily filled (70–80% filler loading) resins. The product is available in powder or a 100% active pellet. Axel has also developed an internal release agent to assist manufacturers of textured panels for automotive, truck and other vinyl plastic applications. MoldWiz INT-VP250 avoids excess buildup in the textured mould detail area that often occurs with external releases agents and, unlike stearate, does not exude. The company claims that the release agent reduces cycle times, mould temperature and pressure in the mould equipment. According to Axel, INT-VP250 provides the additional benefit of internal lubrication without adversely effecting “the physical properties or any of the overall secondary operations such as decorating, printing, bonding or plating that are especially important to automotive and truck makers interested in textured panels”. The release agent is available in 100% active powder or pellet form and the company recommends an addition level of 0.1–1.0%. It can be dry tumbled, gravitationally fed or compounded directly into the resin to make a masterbatch. The company also recently introduced MoldWiz INT-1945MCH, an internal mould release
Additives for Polymers
designed to improve the pultrusion processing of polyurethane resin systems. The product is a formulation of neutralized complex organic esters and nonionic surfactants that is claimed to eliminate the impact on crosslinking and cure kinetics associated with the use of mould releases containing acidic lubricants. INT-1945MCH also avoids foaming reactions in the resin mixing tanks and baths as it does not interact with the molecular sieves frequently used to dry the polyols. Contact: Axel Plasics Research, Box 77 0855, Woodside, NY 11377, USA; tel: +1-718-672 -8300; e-mail: [email protected]; URL: www.axelplastics.com
Goldschmidt introduces dispersant for pigment masterbatch production Degussa business Goldschmidt Industrial Specialties has expanded its range of dispersing additives for the production of pigment masterbatches with the addition of newcomer Tegomer® P 141. The new dispersant was developed to meet the stringent demands of colouring polypropylene micro fibres and technical polymers. Goldschmidt claims the result is superior performance parameters such as high colour yield and an effective reduction of agglomerate formation. The dilution properties in the final processing stage are also said to be excellent, leading to the avoidance of stripe formation. Tegomer P 141 provides advantages during the production process of colour concentrates at both high and low loading, and excellent feed characteristics can be expected together with high throughput rates, according to the company. Its incorporation is also claimed to yield significant cost benefits in the production of pigment concentrates. Goldschmidt produces an established range of high-efficiency Tegomer dispersants that provide the plastics industry with high pigment loadings combined with superior processing performance. Contact: Degussa AG, Karl-Arnold-Platz 1a, D40474 Düsseldorf, Germany; tel: +49-21165041-0; fax: +49-211-65041-555; URL: www.degussa.de
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September2004
MATERIALS
its new subsidiary Glass Coatings & Concepts, LLC.
Shepherd Color extends line of IR-reflecting pigments
Contact: Shepherd Color Co, 4539 Dues Drive, Cincinnati, OH 45246, USA; tel: +1-513-8740714; fax: +1-513-874-5061; URL: www.shepherdcolor.com
Shepherd Color has added to its Arctic® infrared-reflective pigment line, launched last year [Additives for Polymers (ADPO), September 2003], with the introduction of Brown 10P857. The company says the new pigment is a clean, red-brown shade that can be used in a wide variety of plastics applications where highly chromatic and durable colour is essential. According to Shepherd Color, trends in the building, construction and automotive industries demand colours that simulate wood finishes, as well as darker, earthier tones. Brown 10P857 reportedly offers a “highly robust yet economic way to incorporate colour” into even the most demanding projects where iron oxides, typically used to match such colours, do not meet requirements or cannot be used. The brown pigment is said to have excellent weathering performance making it highly suitable for any exterior application. The company says that the movement to the use of lead-free stabilizers in PVC is placing limits and constraints on the use of traditional iron oxide pigments, and that Brown 10P857 is an ideal replacement. In addition to its durability, Brown 10P857 has a low heat build-up of 25°C in its mass-tone, making it useful for the darker colours that are currently in demand. The new pigment is also reported to have outstanding heat stability, capable of withstanding the “extreme demands of pigment performance when processing engineering polymers”. Brown 10P857 has wide compatibility with all polymer types and alloys, is very easy to disperse and provides the best colour consistency available, Shepherd says. The company believes the pigment will be especially beneficial to the vinyl industry because of its lower utilization costs, dispersibility characteristics, low heat build-up and high IR reflectivity, durability and the proven performance of the CI Pigment Brown 33 chemistry. In other recent company news, Shepherd Color has acquired the Ceramic and Glass Division of General Color and Chemical, and has renamed
2
Techmer PM formulates super-clear antiblock for packaging Techmer PM has developed a new super-clear formulation of its antiblocking agent for extruded films, pouches and bags. Techsperse™ PM11840E4 antiblock is said to offer an “unsurpassed”, sparkling clarity for product packaging and marketing applications where visual appeal is critical. The new antiblock additive meets FDA requirements for use with all foods and medical products. It is provided in a proprietary polyolefinbased carrier resin that can be processed at temperatures up to 221°C. As an extruded film cools, Techsperse PM11840E4 is in the film’s surface creating a super-transparent antiblocking film with reduced sticking and friction, which is especially important for films that will be used with high-speed packaging equipment. To assure maximum clarity and freedom from haze, the manufacturer says the pellets should not be stored for more than six months. A strict first-in, first-out usage pattern is therefore recommended. Loading levels will vary for different films and package designs. Techmer PM says it will work with customers to develop individual recipes that optimize consumption on this premium additive. Contact: Techmer PM, 1 Quality Circle, Clinton, TN 37716, USA; tel: +1-865-4576700; fax: +1-865-457-3012; URL: www.techmerpm.com
Axel adds to process aid and release agent ranges Axel Plastics Research Laboratories has introduced a new process aid additive specifically to improve colour consistency and enhance throughput in the manufacture of plastic automotive parts.
September 2004
MoldWiz INT-435PAD is designed to improve the dispersion of fillers and pigments during the extrusion process, while also increasing product flow, the company says. INT-435PAD – a proprietary mixture of unsaturated fatty esters and organic acid derivatives – is claimed to be “extremely beneficial” in the processing of ASA/PC alloy (acrylonitrile-styreneacrylonitrile + polycarbonate), a key plastic used to make automotive parts. Production of exterior auto parts typically yields many exhibiting colour inconsistencies such as swirls and shadows because of poor colour dispersion, resulting in part rejection. In addition, poor release of parts from the mould cavities has also been a source of production losses, Axel says. However, pretreating the pigment-containing masterbatch with INT435PAD at an addition level of 0.5%, and processing at 220–240°C before adding to the base resin, achieves uniform colour and facilitates good fill and easy ejection from the mould, according to the company. Its use also increases extruder throughput by reducing screen pack and providing easy flow properties, particularly in heavily filled (70–80% filler loading) resins. The product is available in powder or a 100% active pellet. Axel has also developed an internal release agent to assist manufacturers of textured panels for automotive, truck and other vinyl plastic applications. MoldWiz INT-VP250 avoids excess buildup in the textured mould detail area that often occurs with external releases agents and, unlike stearate, does not exude. The company claims that the release agent reduces cycle times, mould temperature and pressure in the mould equipment. According to Axel, INT-VP250 provides the additional benefit of internal lubrication without adversely effecting “the physical properties or any of the overall secondary operations such as decorating, printing, bonding or plating that are especially important to automotive and truck makers interested in textured panels”. The release agent is available in 100% active powder or pellet form and the company recommends an addition level of 0.1–1.0%. It can be dry tumbled, gravitationally fed or compounded directly into the resin to make a masterbatch. The company also recently introduced MoldWiz INT-1945MCH, an internal mould release
Additives for Polymers
designed to improve the pultrusion processing of polyurethane resin systems. The product is a formulation of neutralized complex organic esters and nonionic surfactants that is claimed to eliminate the impact on crosslinking and cure kinetics associated with the use of mould releases containing acidic lubricants. INT-1945MCH also avoids foaming reactions in the resin mixing tanks and baths as it does not interact with the molecular sieves frequently used to dry the polyols. Contact: Axel Plasics Research, Box 77 0855, Woodside, NY 11377, USA; tel: +1-718-672 -8300; e-mail: [email protected]; URL: www.axelplastics.com
Goldschmidt introduces dispersant for pigment masterbatch production Degussa business Goldschmidt Industrial Specialties has expanded its range of dispersing additives for the production of pigment masterbatches with the addition of newcomer Tegomer® P 141. The new dispersant was developed to meet the stringent demands of colouring polypropylene micro fibres and technical polymers. Goldschmidt claims the result is superior performance parameters such as high colour yield and an effective reduction of agglomerate formation. The dilution properties in the final processing stage are also said to be excellent, leading to the avoidance of stripe formation. Tegomer P 141 provides advantages during the production process of colour concentrates at both high and low loading, and excellent feed characteristics can be expected together with high throughput rates, according to the company. Its incorporation is also claimed to yield significant cost benefits in the production of pigment concentrates. Goldschmidt produces an established range of high-efficiency Tegomer dispersants that provide the plastics industry with high pigment loadings combined with superior processing performance. Contact: Degussa AG, Karl-Arnold-Platz 1a, D40474 Düsseldorf, Germany; tel: +49-21165041-0; fax: +49-211-65041-555; URL: www.degussa.de
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