were also present in tested flavors that contained menthol.
This study shows the effectiveness of the cyclic acetal
in compounds based on various elastomers.
Production of Poly(Vinyl Acetals
) From Various Aldehydes
materials have been a commercial option for more than 50 years.
Color concentrates for acetal
, acrylics, ABS, cellulosics, EEA, EVA, nitrile barrier resins, nylons, PC, TP polyesters, polyolefins, PS, TP urethane, PVC, SAN, and other thermoplastics.
Showing high-performance custom compounds, including Thermylene chemically coupled, glass- and mineral-reinforced PP; Xyron modified PPE; Tenac acetal
; and glass-reinforced ABS and SAN.
To combat VOCs and odors emitted by plastics in auto interiors, DuPont has also developed a new acetal
copolymer to help auto makers eliminate or reduce these smells.
Compounder is expanding capacity for engineering resins, including nylons and acetals
. Also featuring its growing TPE line of SEBS and TPU products.
* Kemamide W-40 ethylene bis-stearamide mold release for acetal
, PBT, phenolics; and a lubricant for PVC.
"Now that we're looking for something with better vapor-barrier properties," says Beall, "we're [re]discovering acetal
, and people are modifying acetal
so that it's rotationally moldable."
However, degradation of acetal
that occurs in the solid state takes place slowly enough to produce a substantial amount of intermediate chain lengths.
My first exposure to the prolonged shrinkage process exhibited by some materials came when i was molding large parts in acetal