Standard Grade

ETHYLENE-VINYLALCOHOL COPOLYMER AT4403B
44 mol% Ethylene Content

General Description

Soarnol AT4403B is one of the standard grades of "Soarnol®", its ethylene content is 44 mol% with a low MFR(melt flow rate).

Soarnol AT4403B has excellent water resistance and good gas barrier property, especially in high humidity environments. Its gas barrier property is not drastically lower at high humidity. This resin is primarily used in coextruded film applications and can also be used in shrink packaging.

General Properties

Property Unit Value
Ethylene Content mol% 44
MFR1) (@210°C, 2160g) g/10min 3.5
Volatile Matter % < 0.3
Melting Point2) deg C 164
Crystallization Temperature2) deg C 144
Oxygen Permeability3)
20deg C-65%RH 		cc 20μm/m2 day atm
cc·mil/100inch2·day·atm		 1.5
0.076
WVTR
40deg C-90%RH		 g 30μm/m2 24hrs 12-25

1): Measured with Melt Indexcer
2): Measured with DSC, both heating and cooling speeds of 10deg C /min
3): Measured with OXTRAN 10/50 (MOCON)

Melt Viscosity

Fig.1 Melt Viscosity of Soarnol AT4403B

Example of Processing

Extruder: 40 mmφsingle screw extruder, L/D = 28
Screw: Full-flighted, constant pitch type, CR = 3.5
Screen pack: 80/120/50 mesh
Die: Manifold type, die width = 450 mm, lip clearance = 0.2 mm
Processing Temperature: deg C(deg F)
C1 C2 C3 C4 C5 Head Die
170
(338)		 190
(374)		 210
(410)		 220
(428)		 220
(428)		 220
(428)		 190-220
(374-428)

Hygienic Performance of Soarnol AT4403B

Soarnol AT4403B contains no heavy metals or other harmful substances.

Soarnol AT4403B meets the Food Sanitation Standards of various countries.

Japan: Ministry of Health and Welfare Announcement No.370(Dec. 28,1959) and Its Latest Amendment No.18(Jan. 31,1994)
Self-Restrictive Requirements on Food-Contacting Articles Made of Polyolefins and Certain Polymers
U.S.A.: FDA 21CFR 177.1360(a)(3) and 175.105
EU: European Commission Directive 90/128/EEC, and Its Latest Amendment

Date Revised: April. 4, 2008

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