NUCREL™

Usage detail

Extrusion coating, films, electric wire applications, adhesive materials, molded products, automotive moldings, water dispersion, etc.

  • Overview
  • Grade Chart
  • Physical properties
  • Usage detail
  • Product Safety Information

Introduction

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NUCREL™ is an ethylene methacrylic acid copolymer manufactured and sold by Dow-Mitsui Polychemicals using the Dow Chemical Company technologies.

Since NUCREL™ contains polar groups in its molecular chain, in addition to toughness and flexibility it features excellent adhesion to glass, metals, etc.

Features

1. Toughness

As NUCREL™ has strong intermolecular bonds due to hydrogen bonding between carboxyl groups, it possesses a strength similar to ionomers and particularly excels in low-temperature impact resistance.

2. Flexibility

As NUCREL™ is an ethylene copolymer, it has moderate flexibility.

3. Adhesion to metal and glass

Since NUCREL™ contains polar, carboxyl groups, within its molecular chain, it exhibits excellent adhesion to metals such as aluminum foil and glass.

4. Thermal stability

NUCREL™ belongs to a category of ethylene copolymers with excellent thermal stability, is relatively stable against heat, and can be molded at temperatures of 300°C and higher depending on the processing method.

5. Weather resistance

As NUCREL™ is an ethylene copolymer, excellent weather resistance can be obtained by blending it with carbon black or a UV absorber.

6. Moisture absorbency

As NUCREL™ is not moisture absorbent, resin handling is simple.

7. Suitability as a packaging material

NUCREL™ is suitable as a sealant resin for packaging materials due to its excellent performance with various areas, including metal adhesion, heat sealing and hot tack properties.

NUCREL™

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Grade Test item Acid content Melt
flow rate		 Density Tensile stress at break Tensile breaking strain Bending rigidity Vicat softening
temperature		 Durometer Type
D Hardness		 Melting point Remarks Food hygiene
◯: Listed (acquired), ✕: Not listed (not acquired) - : Unknown
1) Dow-Mitsui Polychemicals has not conducted an elution test using a food simulant-solvent.
2) Even if it is listed (acquired), there may be various restrictions and other requirements, please make sure to confirm the details with us.
3) Food hygiene information does not necessarily reflect the latest version of each law or regulation (including voluntary standards). Please be sure to confirm the details with us.
Measurement method FT-IR method JISK7210:1999
(190℃/2.16Kg load)		 JIS K7112
:1999		 JIS
K7161-1:2014
K7161-2:2014*1		 JIS
K7161-1:2014
K7161-2:2014*1		 JIS K7106
:1995		 JIS K7206
:1999		 JIS K7215
:1986*2		 (DSC)
Unit %
(Mass percentage)		 g/10min kg/m3 MPa % MPa ℃ - ℃ MHLW Positive
Lists		 JCII Center JHOSPA Type
Confirmation Certificate		 US
FDA 21CFR		 European PIM
N1560 15 60 940 24 500 81 60 55 90 ◯ ◯ ◯ ◯
N1525 15 25 940 28 500 83 63 53 93 ◯ ◯ ◯ ◯
AN4221C 12 10 940 21 500 99 69 57 94 ◯ ◯ ◯ ◯
AN4213C 11 10 940 28 500 54 62 47 88 Flexible type grade ◯ ◯ ◯ ◯
N1110H 11 100 940 16 400 87 68 53 95 ◯ ◯ ◯ ◯
AN4229C 10.5 10 940 30 500 101 73 56 95 ◯ ◯ ◯ ◯
N11081C 10.5 10 940 27 500 105 76 57 98 ◯ ◯ ◯ ◯
N1108C 10.5 8 940 26 500 140 78 58 98 ◯ ◯ ◯ ◯
N1050H 10 500 930 12 400 79 62 50 95 ◯ ◯ ◯ ◯
N1035 10 35 930 22 500 90 71 54 95 ◯ ◯ ◯ ◯
N035C 10 35 940 20 600 40 54 42 86 Flexible type grade ◯ ◯ ◯ ◯
N0908C 9 8 930 23 500 155 82 57 99 ◯ ◯ ◯ ◯
AN42012C 9 7 940 19 500 152 83 59 100 ◯ ◯ ◯ ◯
N0903HC 9 3 930 28 500 140 82 57 99 ◯ ◯ ◯ ◯
N0823 8 22.5 930 21 500 97 77 54 99 ◯ ✕ ◯ ◯
AN42115C 5 33 930 10 600 65 67 45 95 Flexible type grade ◯ ◯ ◯ ◯
AN4228C 4 14 930 11 600 91 69 47 - Flexible type grade ◯ ◯ ◯ ◯
AN4214C 4 7 930 18 500 200 92 57 105 ◯ ◯ ◯ ◯
N0200H 2 130 920 8 700 43 52 36 88 Flexible type grade ◯ ◯ ◯ ◯
AN4233C 1.3 10 930 15 600 98 67 48 - Flexible type grade ◯ ◯ ◯ ◯

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*1 Tensile test - test piece type and testing speed:JIS K 7161-2 / 1BA / 20

*2 Measurement instrument: Asker P-2 sensor descent rate: 10.0 mm / s

·Note: The data above are typical values and cannot be used as standard values.

·Only typical grades are listed in this table. Please contact Dow-Mitsui Polychemicals to inquire whether there are any grades other than those listed.

Physical properties

Usage detail

NUCREL™ is used as a material for the following kinds of products.

Snack packaging

Snack packaging

Packaging for powdered foods

Packaging for powdered foods

Liquid packaging cartons

Liquid packaging cartons

Poultice

Poultice

Toothpaste tubes

Toothpaste tubes

Dispersion

Dispersion (paper cups, secondary food packaging, paper straws)

Applications of NUCREL™

  • Laminated tubes
  • Various molded products
  • Adhesive layer resin in metal tape for electric wire
  • Hot melt adhesives
  • Adhesive films
  • Base resin for masterbatches
  • Various resin modifications for engineering resins, etc.
  • Metal coating

Product Safety Information

1. Medical applications

Please do not use this product for permanent implantation in the human body or for medical applications involving a state of permanent contact with bodily fluids or human tissue (in this case, permanent means 30 days or more.)

Additionally, please consult with Dow-Mitsui Polychemicals in advance if you wish to use the product for other medical applications, such as for a medical device as defined in the Act on Securing Quality, Efficacy and Safety of Products Including Pharmaceuticals and Medical Devices.

2. Food packaging applications

Please contact Dow-Mitsui Polychemicals regarding the state of inclusion in (conformity to) domestic and overseas laws or regulations regarding food utensils, containers and packaging materials.

Outside of Japan, Nucrel™ is available from the Dow Chemical Company.

Contact / Inquiry

Figure: Aluminum adhesion strength

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Source: Dow-Mitsui Polychemicals technical materials
Measurement method
  • Composition: paper (50 g/m2) / LDPE (20 µm) / Al (9 µm) / evaluated resin (20 µm)
    * LDPE: MFR=8, d=917, mPE: MFR=11, d=906
  • Processing resin temperature: NUCREL™ / LDPE: 290ºC,
  • Aging conditions: 23ºC x 50% RH
  • Adhesion strength measurement: Peel rate: 300 mm / min., peel angle: 90° (T type), test specimen width: 15 mm

Heat sealing properties

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Source: Dow-Mitsui Polychemicals technical materials
Measurement method
  • Composition: PET (12 µm) / LDPE(15 µm) / Evaluated resin (30 µm)
    * LDPE: MFR=7.2, d=917, mPE: MFR=7, d=912
  • Processing resin temperature: LDPE / mPE / NUCREL*: 295ºC, HIMILAN™: 300ºC
  • Heat sealing conditions: 0.2 MPa x 0.5 sec., sealing bar width: 10 mm
  • Heat sealing strength measurement conditions: Peel rate: 300 mm / min., peel angle: 90º (T type), test specimen width: 15 mm

Hot tack strength

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Source: Dow-Mitsui Polychemicals technical materials
Measurement method
  • Equipment: Tella Model HT hot tack heat sealing tester
  • Composition: paper (50 g/m²) / LDPE (20 µm) / AL foil (7 µm) / AC + ozone evaluated resin (20 µm)
    * mPE: MFR=8, d=901, HIMILAN™ / NUCREL™ are AC + no ozone treatment
  • Processing resin temperature: mPE / NUCREL™: 295ºC, HIMILAN™: 310ºC
  • Hot tack strength: measured 185ms after heat sealing

Stress crack resistance

Table: Stress crack resistance of NUCREL™

Grade IGEPAL 100% IGEPAL 1% Ethanol 100%
F10 F50 F100 F10 F50 F100 F10 F50 F100
NUCREL™ N410 16 49 190 1.8 2.5 5.8 22 25 50
N0903HC 1000< - - 1000< - - 864< - -
N0908C 20 60 230 2.5 4.7 14 15 38 46
N1207C 1000< - - 1000< - - 5 15 56
N1214 100 410 1000< 1000< - - 6.6 16 28
(Reference) HIMILAN™ from Dow-Mitsui Polychemicals 1650 1000< - - 1000< - - 26 28 34
1652 11 18 26 1000< - - 0.02 0.05 0.08
(MFR=7.2, Density 917) 0.16 0.2 0.25 0.7 1 1.4 0.02 0.05 0.08
(MFR=3.7, Density 923) 0.1 0.15 0.25 0.7 0.85 1 0.02 0.05 0.08

Testing method: Bent Strip Method (temperature: 50°C)