Polyester Resins

Eko

Foamable biodegradable polyester resins.

Eko resin is the trade name of modified aliphatic polyesters of SOFC.

These resins are based on fully aliphatic and/or aromatic/aliphatic polyesters and their modified one for foaming process.

Properties

Items	Eko-520	Eko-320	Eko-115
Shape	Pellet	Pellet	Pellet
Color	White to off white	White to off white	Clear to opaque
Density	1.25 ± 0.02 g/cm³	1.25 ± 0.02 g/cm³	1.25 ± 0.02 g/cm³
Water content	Max.300 ppm	Max.300 ppm	Max.300 ppm
Melt index*	1 - 2	1 - 2	0.5 - 1.5
Softening temperature	90-100 ^oC	100-120 ^oC	140-160 ^oC
Elongation at break, %	800 - 1000	500 - 600	3 - 5
Tensile modulus, Mpa	150 - 200	300 - 350	2800 - 3000
Shore D hardness	30 - 35	-	-

* : 200 ^oC, 2.16kg

Applications

Eko resins can be used with conventional plastic foaming machines and also other processing equipments. But these are susceptible to humidity, so before and during the processing the moisture should be minimized. The recommended processing temperature is not over 210 ^oC.

Packaging & Storage

Eko resin is supplied in 25-kg PE coated paper bags to prevent water contact and should be stored in a dry place.