Product Information

Highest level of gas barrier properties of any plastic

Plastics/Polymers Vinyl Acetate Derivatives

EVAL™ (resins and film)

General name
Ethylene vinyl alcohol copolymer
Sales format
Pellets and single-layer film
Examples

As a world first, in 1972 Kuraray developed and subsequently started manufacturing EVAL™, an ethylene vinyl alcohol copolymer (EVOH) resin. Featuring superior gas barrier properties unmatched by any other plastic, EVAL™ is used widely in food packaging containers. It is being used increasingly in a wide variety of applications, such as for pharmaceuticals, cosmetics, agricultural produce and industrial products. EVAL™ is also adopted in automotive plastic fuel tanks.

Applications

Food packaging materials, medical packaging materials, automotive plastic fuel tanks, under-floor heating pipes, containers for agrochemicals, soil fumigating film, vacuum insulation panels, districted energy pipes, etc.

Characteristics

Gas barrier properties

Excellent barrier properties against the permeation of gases including oxygen

Solvent/chemical substances barrier

Blocks solvents and chemical substances

Aroma retention

Excellent barrier for flavor and aroma preservation

Transparency

Transparent package for content visibility

Chemical resistance

Minimal absorption of solvents

Low thermal conductivity

Low thermal conductivity compared with aluminum foil

Standard grades and properties

Standard grades
Grade Ethylene content
(mol%)
Density1
(g/cm3)
MFR2
(g/10 min)
Melting point
(ºC)
Glass transition point3
(ºC)
Oxygen transmission rate4
(cm3・20μm/m3・day・atm)
Applications
L171B 27 1.21 4.05 190 63 0.1 High barriers
F101B 32 1.19 1.6 183 60 0.3 Fuel tanks, bottles, tubes
F171B 32 1.19 1.6 183 60 0.3 Bottles, sheets, film, tubes
H171B 38 1.17 1.7 172 56 0.7 Bottles, sheets, film, tubes
E105B 44 1.14 5.5 165 53 1.9 Sheets, film, tubes
G156B 48 1.12 6.4 157 50 3.7 Stretch film, shrink film

1. 20ºC 2. 190ºC, 2,160 g 3. Dry 4. 20ºC×65%RH, ISO14663-2 annex C 5. 210ºC, 2,160 g

Standard/semi-standard grades
Grade Ethylene content
(mol%)
Density1
(g/cm3)
MFR2
(g/10 min)
Melting point
(ºC)
Glass transition point3
(ºC)
Oxygen transmission rate4
(cm3・20μm/m3・day・atm)
Applications
L104B 27 1.21 8.05 190 63 0.1 L-type low-viscosity type
F104B 32 1.19 4.4 183 60 0.3 F-type low-viscosity type
C109B 35 1.18 8.5 177 58 0.5 Co-extrusion coating, injection molding
E171B 44 1.14 1.7 165 53 1.9 E-type high-viscosity type
E173B 44 1.14 2.5 165 53 1.9 E-type medium-viscosity type

1. 20ºC 2. 190ºC, 2,160 g 3. Dry 4. 20ºC×65%RH, ISO14663-2 annex C 5. 210ºC, 2,160 g

Special grades
Characteristics Differences from the standard grade Grades
Improved processability Improved thermo-formability and stretchability in sheet forming SP series, J171B
Flexibility Excellent flex-resistance and crack-resistance FS201B
Improves impact resistance Improved grade for impact resistance LA170B
Fuel tanks High-barrier type for fuel tanks M100B
Pipes Improves durability for pipes such as under-floor heating pipes FP101B, EP105B
Retort Reduced whitening and delamination in retort process FR101B, LR171B

We offer special grades for various applications and processing methods. Please contact us for more information.

Related website

Contact us

Click here for inquires (EVAL™ (resins and film))
EVAL Division
Kuraray Co., Ltd.
Ote Center Building, 1-1-3, Otemachi, Chiyoda-ku, Tokyo 100-8115, Japan
Tel.: +81-3-6701-1489
E-mail: eval.jp@kuraray.com
EVAL Europe N.V.
Keetberglaan 1B - Haven 1087 B-9120 Melsele, Belgium
Tel.: +32-3-250-97-33
E-mail: eval.eu@kuraray.com
Kuraray America, Inc.
EVAL Business Unit
2625 Bay Area Boulevard, Suite 600, Houston, Texas 77058, U.S.A.
Tel.: +1-800-423-9762
E-mail: eval.us@kuraray.com
Kuraray Asia Pacific Pte. Ltd.
331 North Bridge Road #18-02 Odeon Towers, Singapore 188720
Tel.: +65-6337-0116
E-mail: eval.jp@kuraray.com
Kuraray China Co., Ltd.
Unit 2207, 2 Grand Gateway, 3 Hongqiao Road, Xuhui District, Shanghai 200030, China
Tel.: +86-21-6119-8111 (ext. 2205)
E-mail: eval.jp@kuraray.com