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ETHYLENE COPOLYMER EMMA ACRYFT (Sumitomo Chemical)
ACRYFT (Sumitomo Chemical)

Sumitomo's proprietary technology products to the world's first commercial production of ACRYFT sold. ACRYFT the product with ethylene and a copolymer of methacrylate. ACRYFT that soft rubber products such as EVA and excellent low temperature properties, Heat Seal have a low-temperature performance, etc.

Key Features

  -   Extremely superior thermal stability than EVA, even when degraded, such as EVA does not generate acid, molding at high
       temperature is possible.
  -   Extrusion laminating process is easy like low density polyethylene (LDPE).
  -   A wide range of injection molding conditions and General-purpose engineering plastics and can be a blend of various plastics.
  -   A large amount of filler and the mixing is possible.

  -   There is no pungent odor compared to EVA
  -   No corrosion by acetic acid like an EVA
  -   Excellent electrical properties
  -   Good weather resistance
  -   Has excellent releasability against the rubber adhesive

  -   Flammability
  -   Flexibility
  -   Adhesiveness
  -   Engineering plastics and is easy to blend
  -   Excellent foaming
  -   Low-odor
  -   Low-corrosive
  -   Breathable
  -   IR absorption
  -   High transparency

  -   Possible recycled
  -   Is possible to extruded at low torque
  -   High-temperature processing, enabling high-speed production
  -   2nd process ability good(heteromorphy, cut)

  -   Reuse of recovered products is possible.
  -   Low burning calories
  -   Even a multi-layered body or composite in which a molten resin is mixed does not need to be decomposed.
  -   The change in viscosity at the time of regeneration is small and it is possible to flexibly change the reuse ratio.

EMMA structure

Properties and Uses

Main Application General Purpose Film / Sheet Laminated Film Wire & Cable Hotmelt Adhesives
Resin Modifier Soft Matte Film
Grade/Item Test Method Unit WD106 WK307 WK402 WD203-1 WD201-F WH206-F CM-8013 CM-8014 WD301-F WH303-F WH401-F WH102 CM5021 CM5022
MMA Content Infra Red
Sumika-Method 		wt% 5.8 25 25 5 10 20 12.5 17.5 10 18 20 17 28 32
M.F.R JIS K7210-1999 g/10min 0.32 7 20 2 2 2 3.5 4 7 7 20 0.25 450 450
Density JIS K7112-1999 kg/㎥ 920 940 940 920 930 940 930 940 930 940 940 930 940 950
Tensile Strength JIS K7113-1995 Mpa 18 9 8 15 16 16 11 10 11 9 8 25 2 2
Elongation JIS K7113-1995 % 750 730 750 750 740 720 710 700 700 750 700 750 320 350
Flesural Modul ASTM D747-70 Mpa 80 17 15 88 65 20 60 32 65 27 17 35 8 6
Durometor
Hardness 		JIS K7215-1986 A 100 85 84 100 100 90 95 91 97 91 89 93 73 65
D 48 31 30 48 43 38 42 36 43 36 34 43 30 17
Vicat Softening P. JIS K7206-1999 ℃ 85 47 45 83 75 60 65 60 75 60 50 73 <25 <25
Melting P. JIS K7121-1987 ℃ 101 80 79 106 100 86 89/110 79/110 100 89 86 90 67 63
R&B Softening P. JIS K2207-1996 ℃ >195 143 125 185 185 185 175 170 150 146 125 >195 90 89
Brittle Temp. JIS K7216-1980 ℃ <-75 <-75 <-75 <-75 <-75 <-75 <-75 <-75 <-75 <-75 <-75 <-75 -46 -46
E.S.C.R ASTM D1693-70 hr >300 >300 50 5 50 >300 1 >300 1 80 13 >300 <1 <1

Usage

1 2 3
Formulation (wt%) WH102 50 40 30
Mg(OH)2 50 60 70
Properties of Compound Tensile Strength (MPa) 12 8.8 6.9
Elongation (%) 610 580 23
STIFF (MPa) 86 109 149
Oxygen Index (%) 29.1 31.3 35.7

Magnesium hydroxide Mg(OH)2：Kyowa Chemical KISUMA 5B
Compounding：Labo Plast mill１５０℃６０ｒｐｍ５分
Test Method：ＪＩＳNo３Dambell２００ｍｍ／ｍｉｎ

Acryft EEA EVA
WD301 WH302 WH303 EEA D3012
MFR(g/10min) 7 7 7 6 6
Comonomer(wt%) MMA 10 MMA 15 MMA 18 EA 18 VA 10
Melting Temp (℃) 100 94 89 95 97
Crystallization Temp (℃) 87 79 75 80 84
Heat seal strength
< 10N HSTemp >
(℃) 		240℃ *2 ー ー ー ー 116
270℃ *1 122 114 ー ー ー
290℃ *1 118 107 103 103 ー
310℃ *1 118 109 103 103 ー
310℃ *3 ー 116 113 128
Hot-tack
< 10mm peeling Temp >
(℃) 		240℃ *2 ー ー ー ー 106
270℃ *1 117 102 ー ー ー
290℃ *1 115 100 92 96 ー
310℃ *1 115 98 92 118 ー
310℃ *3 ー 107 105 * 4 ー
MMA (weight%) Melt flow Rate(g/10min)
CM5021 28 450
CM5022 32 450
CM5023 28 150
ETHYLENE COPOLYMER