Lubrizol TPU meets tough requirements
Lubrizol Advanced Materials Inc. has developed a soft grade of thermoplastic polyurethane for demanding hose and tube applications.
The Cleveland firm said Estane 58070 provides low-temperature flexibility, snap-back resistance and durability under extreme conditions. The elastomer is a plasticized polyester TPU with Shore 72A hardness. Other potential applications include fabric coating and wire and cable.
Tel. 888-234-2436 or 216-447-5000.
Peki creates lighter truck-body systems
New polypropylene panels for van and truck bodies are allowing Australian transport companies to carry higher payloads and reduce fuel consumption.
Melbourne, Australia-based truck-body supplier Peki Pty. Ltd. has developed a truck-body system consisting of walls, a roof and floor panels manufactured from a lightweight sandwich of woven reinforced polypropylene sheets and a strong honeycomb PP core.
Peki national sales manager Michael Jenkins said the company's PekiLite sheets are welded to each side of the PP core.
Peki traditionally has manufactured refrigerated transport vehicle bodies and is the preferred supplier of vehicle bodies to a major national Australian bakery, but Jenkins said vehicle weights ``became a problem.''
Peki therefore developed its rigid-body alternative, the PekiLite system, so truck bodies are significantly lighter, with a 4,400-pound payload ``quite achievable.''
It began marketing the system last year, after an extensive testing program.
Jenkins said a 14-foot-long FRP truck body could weigh 2,600 pounds, a steel body 2,800 pounds and a PekiLite body just 1,100 pounds.
Jenkins said the sandwich panel is made of honeycomb bonded with reinforced thermoplastic composite skins. An additional layer of PP on the outside provides a smooth surface.
PekiLite truck bodies also have been tested with DaimlerChrysler and Isuzu trucks.
Jenkins said the testing showed the PekiLite system offers high impact resistance and rigidity, weight savings and a subsequent reduction in fuel.
Mold-release agent can reduce deposits
Axel Plastics Research Laboratories Inc. said its new semipermanent mold release is aimed at reducing deposits in difficult composite applications.
Xtend 19CMS deters buildup on closed molds that typically develop a rough surface after several cycles, especially on the B side of composite tooling. The new product is designed to cure more quickly and completely, and to provide a tougher release interface that resists entrapment of molding debris, according to the Woodside, N.Y., firm.
Axle said its new mold release is suited to rotational casting, compression molding, resin-transfer molding and open molding of nongel-coated and primer gel-coated parts. It can be sprayed on or wiped on at temperatures up to 160° F.
Tel. 718-672-8300, ext. 16, fax 718-565-7447, e-mail [email protected]
Songwon introduces an array of additives
Songwon Industrial Co. Ltd. of Ulsan, South Korea, is debuting new additives for polyolefins and compounding.
Songnox 1290 is a phenolic antioxidant. Songnox 6280 is a high-performance, hydrolytically stable phosphite antioxidant.
Also, the firm is introducing three thioester-based antioxidants, Songnox DSTDP, DLTDP and 4120.
Songwon also said it is introducing two benzoate ultraviolet light absorbers, Songsorb 2908 and 7120.
The additives complement the company's lines of hindered amine light stabilizers, plasticizers, lubricants, surfactants and other chemicals and polymers. Songwon's North American office is located in Friendswood, Texas.
Tel. 877-766-4966 or 281-648-1585, fax 713-456-1812, e-mail [email protected]
GE Plastics resins to meet future rules
GE Plastics said its new flame-retardant Valox polybutylene terephthalate resins are designed to meet current and future environmental regulations.
Valox ENH resins are non-brominated and nonchlorinated, making it easier for electrical and electronic products to comply with restrictions on disposal of hazardous substances, according to the Pittsfield, Mass., company. For example, the European Union enacted a directive restricting the use of polybrominated diphenyl ether and other hazardous substances.
Another directive requires plastics containing brominated flame retardants to be removed from products and treated separately at the end of the product's life. GE Plastics' removal of chlorinated flame retardants is aimed at heading off potential future restrictions related to that halogen as well.
Valox ENH4550, the inaugural grade with 25 percent glass fiber, has high ductility and strength, and beats standard PBT in high-heat properties, GE said.
Tel. 800-845-0600, fax 413-448-5573, e-mail [email protected]
HallStar Co. modifier is highly compatible
HallStar Co. has introduced a low-polarity polymer modifier for thermoplastic polyolefins, thermoplastic elastomers and similar polymers.
The Chicago-based company said RX 13804 is highly compatible with target polymers. It reduces the glass transition temperature of various plastics to give better low-temperature properties. Soft feel and handling also are improved, the firm claims. Typical usage levels are 5- 30 parts per hundred and the product can be processed over a wide temperature range.
Tel. 877-427-4255 or 312-385-4494.
New Metabolix resin is natural alternative
Metabolix Inc. said its joint venture has developed new grades of Mirel resins based on naturally derived polyhydroxyalkanoate.
Mirel P1001 is designed to replace styrenics in injection molding, while P1002 is aimed at replacing polyolefins such as polypropylene. Both resins can be processed easily on conventional injection molding equipment, according to the Cambridge, Mass., firm.
Metabolix also announced a new paper-coating grade from its Telles joint venture with Archer Daniels Midland Co. Mirel P2001 is an alternative to petroleum-based coatings that allows for fully biodegradable, coated paper cups and food packaging, the firm claims.
Tel. 617-492-0505, fax 617-492-1996, e-mail [email protected]