Materials: CDs get a burst of color
Clariant Masterbatches has scored a coup by coloring a product that relies on its transparency and purity to function. The company has developed a masterbatch technology for coloring CD-ROMs."The chal...
Clariant Masterbatches has scored a coup by coloring a product that relies on its transparency and purity to function. The company has developed a masterbatch technology for coloring CD-ROMs.
“The challenge was to identify correct formulations that would allow the passage of laser wavelengths of approximately 740 to 780 nanometers,” says Vincent Liu, country president Clariant Masterbatches Taoyuan-Taiwan.
Clariant Masterbatches Division 800-265-3773
TPU can be extrusion blow molded
Bayer has developed two grades of its Desmopan thermoplastic polyurethane that, for the first time, allow TPUs to be processed by extrusion blow molding.
The new Mercedes S Class cars use the Desmopan TPU to make flexible boots to cover the car’s shock absorbers.
The materials exhibit good tear strength, reduced tear propagation and high resistance to abrasion, buckling and flexural fatigue.
“Thanks to their high melt stability, these new grades can be used for vertical extrusion of the parison without the materials losing their shape under their own weight and without any change in dimensions,” Bayer reports.
The materials can also be injection molded.
Bayer Inc. 800-668-2554
Acrylate monomers suggested as replacement for styrene
According to specialty chemicals producer Sartomer, a partial or total replacement of styrene with multifunctional acrylic monomers allows composite manufacturers to meet emissions requirements while maintaining excellent performance properties.
Specialty acrylate or methacrylate monomers have a higher molecular weight than styrene and therefore are less volatile.
Sartomer states that methacrylate and acrylate monomers exhibit physical properties similar to styrene, as well as similar reactivity and viscosity.
Sartomer Co. 800-345-8247