Cypress Packaging Inc. uses a layer of styrene butadiene co-polymer to control oxygen transmission rates in polyethylene film packaging for fresh, cut vegetables. The Rochester, N.Y.-based film extruder said K-Resin from Phillips 66 Co. provides better control, clarity and gloss than PE and ethylene vinyl acetate modified-atmosphere film constructions. A major customer is Salad Time Farms of Salinas, Calif.
Cypress, established in 1993, has five coextrusion lines, including a Bielloni model custom built to make modified atmosphere packaging. K-Resin, developed by Phillips of Bartlesville, Okla., allows Cypress to reverse print on the film. It formulates its own ink using Sun Chemical equipment in its 80,000-square-foot plant. Cypress closely controls oxygen transmission properties with testing equipment supplied by Modern Controls Inc. of Minneapolis.
Tel. (800) 537-3746.
Dow resins targeting rotomolding market
Dow Plastics returned to rotational molding markets in North America when it introduced three Dowlex NG/NA grades of octene-based polyethylene copolymers at the recent spring meeting of the Association of Rotational Molders in Orlando, Fla.
Dow exited North America's rotomolding market in the mid-1980s but remained active in Europe.
The Midland, Mich., firm supplies the new rotomolding resins in pellet form directly and in powder form through its North American distributor, Nu-Plast. Applications include cold temperature impact goods, toys, tanks and canoes.
Tel. (800) 441-4369.
LNP compounds offer protection from static
LNP Engineering Plastics introduced extrusion-grade engineering composites that provide electrostatic protection.
The new Stat-Kon compounds with conductive and statically dissipative properties include polycarbonate, ABS and poly-propylene filled with carbon powder or reinforced with stainless steel fibers.
New Stat-Loy grades contain permanently anti-static alloys based on ionic technology. LNP of Exton, Pa., offers them in 13 different base resins.
Tel. (610) 363-4500.
Tenite toothbrushes can take a beating
Toothbrushes injection molded from Eastman Chemical Co.'s Tenite propionate resin withstand high levels of mint oil prevalent in new toothpastes.
The resin also resists cracking and bending during toothbrush bristle insertion. Ta Shin Pre-cision Industrial Co. of Taiwan molds and assembles about 4 million toothbrushes a month using Tenite supplied by the Kingsport, Tenn., company.
Ta Shin said Tenite's production from renewable wood pulp is another attraction of the material.
Tel. (423) 229-4853.