1 2005-04
Application of L-MODUTM
for BOPP film
Idemitsu Kosan Co.,Ltd.
May 20th , 2020
Data in this material shows sample figures measured under certain specific conditions.2005-04
L-MODUTM which is only made from propylene monomer has been developed by
Idemitsu Kosan Co.,Ltd. with its original metallocene catalyst technology.
That features are ‘Low Modulus’, ‘Low Melting Point’ and ‘Low Melt Viscosity’
compared with Isotactic PP because of that own low crystallinity.
Introduction of L-MODU TM
2
Data in this material shows sample figures measured under certain specific conditions.2005-04
Atactic PP Low Isotactic PP High Isotactic PP
L-MODUTM
Melting point HighNone
Touch of sense Hard
Low
SoftSticky
Crystallization rate FastSlowNo crystallization
L-MODUTM is new type polypropylene with characteristics of low
crystallinity, low melting point and softness. It is controlled molecular
stereo-regularity by producing with Idemitsu`s metallocene catalyst.
Key Concept
3
Data in this material shows sample figures measured under certain specific conditions.2005-04
High crystalline
&
High rigidity
Amorphous
Isotactic
Atactic
[mmmm] ≒100
[mmmm] ≒6
IPP
APP
・[mmmm] ≒30~60 ・Mw / Mn ≒ 2
・Low crystalline ・Soft ・Elastic
m n
Low isotactic
Idemitsu
Metallocene catalyst
Conventional catalyst
heterogeneous distribution
homogeneous distribution
Control Technology of Stereo-regularity
4
Data in this material shows sample figures measured under certain specific conditions.2005-04
L-MODUTM-20%
P/E Copolymer -20%
L-MODUTM has good compatibility with PP in comparison
with copolymer type soft materials.⇒improved excellent optical property and modification of mechanical properties
Blending and mixing various propylene
based soft materials to homo PPSea-island structure
Sea-island structure
Homogeneous structure
P/E Copolymer -20%
Compatibility of L-MODUTM with PP
5
Data in this material shows sample figures measured under certain specific conditions.2005-04
Homo PP + L-MODUTM 10%
Homo PP
Flash DSC (Mettler Toledo)
condition: isothermal crystallization after cooling from 230ºC to25ºCat 2000ºC/min.
Crystallization rate is delayed by adding L-MODUTM to PP.⇒ improved good thermoforming property (stretching, spinning, vacuum molding etc.)
Random copolymer PP
Random copolymer PP + L-MODUTM 10%
0.0 0.1 0.2 0.3 0.4 0.5
←en
do
therm
ic
e
xo
therm
ic→
Time in isothermal crystallization (sec)
Controlling of crystallization rate of PP
6
Data in this material shows sample figures measured under certain specific conditions.2005-04
The number of sphrulite increases by reducing the spherulite size
regarding to the delay of crystallization rate by adding L-MODUTM to PP.
⇨ Stretchability can be improved by Adding L-MODUTM
PP only PP + L-MODUTM
・PP:MFR = 3.0g/10min
・L-MODUTM : Grade S901、MFR = 50g/10min、Tm = 80ºC
・1mm sheet/Cooling temp. of the roll:30ºC
【Cross section view photo of sheet measured by phase contrast microscope】
Control of spherulite crystallization
7
Data in this material shows sample figures measured under certain specific conditions.2005-04
L-MODUTM localize only in amorphous regions.
Lamellar
structure
Amorphous
region
L-MODUTM
40 80 120 160 200
← 発熱
吸熱
→
Temperature (ºC)
En
d th
erm
icE
xo
th
erm
ic
Adding L-MODUTM to PP has little effect on melting point
because L-MODUTM localize only in amorphous regions.
Melting point
Effects on melting point and higher orderstructure by adding L-MODU to PP
8
Data in this material shows sample figures measured under certain specific conditions.2005-04
* MFR of S400 is converted from viscosity data.
Typical Properties
MethodL-MODUTM
S400 S600 S901
MFR (g/10min) (230 oC, 2.16 kg) ISO 1133 2,600* 390 50
Molecular Weight (Mw)GPC (Idemitsu method)
45,000 75,000 130,000
B-Viscosity (mPa・s) (190 oC) ISO 2555 8,500 50,000 360,000
Density (kg/m3) ISO1183 870 870 870
Melting Point (oC)DSC(Idemitsu method)
80 80 80
Softening Point (oC)
(Ring-and-ball)ISO4625 93 100 120
Tensile Modulus (MPa) ASTM D 638 100 100 100
ISO527 90 90 90
Elongation at Break (%) Idemitsu method 600 800 900
9
Data in this material shows sample figures measured under certain specific conditions.2005-04
Example of Application
10
L-MODUTM can be applied to
Hot Melt Adhesive
Spunbond Nonwoven
BOPP Film
TPE / TPV
Masterbatch for pigment / filler
Data in this material shows sample figures measured under certain specific conditions.2005-04
L-MODUTM improves various properties
Effects for BOPP film
1. Improvement of
stretchability
2. Increasing productivity
3. Excellent property
4. Possible to use high
crystallinity PP
L-MODUTM
・homo polypropylene
・low tacticity
・stereo-random structure
・narrow molecular weight distribution
・narrow molecular composition distribution
Effects of adding L-MODUTM to PP
11
Data in this material shows sample figures measured under certain specific conditions.2005-04
Item Advantage of adding L-MODU
Moldability
1. Improvement
stretchability
Better thickness uniformity
Expanding the process window
2. Increasing
productivity
Stable BOPP film production with low MD stretching
rolls temp.
Reducing frequency of film breaking
Faster line speed (especially for thick film)
Film
functionality
3. Excellent film
property
Low-temperature heat sealability
Improvement transparency
Preventing separation of AB agents (skin layer)
Expansion
of resin
selectivity
4. Possible to
use high
crystallinity PP
Good stretchability
High modulus & high transparency
Capability to make a thin film(Down Gauge)
Possible to use
Low MFR PPImprovement of Flowability of low MFR PP
P13
P14
P15-17
P20-22
P25
P18
P19
Application of L-MODUTM for BOPP film
12
Data in this material shows sample figures measured under certain specific conditions.2005-04
Better thickness uniformity Productivity improvement
◆PP for BOPP
◆PP for BOPP + L-MODUTM 5%
Improvement of thickness uniformity
Brake melt
Temperature/TDO
Sta
nd
ard
de
via
tio
n
of
thic
kn
ess
good
bad
Low HighMachine : Japanese university laboratory stretching machine Stretching mode : sequential (MD to TD)Stretching ratio : 5.0(MDO) ×7.0 (TDO)
Sheet thickness : 550 μmStretching speed:10 mm/min
1. Improvement stretchability- Better thickness uniformity -
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Data in this material shows sample figures measured under certain specific conditions.2005-04
TDO Temperature / ℃158 159 160 161 162 163 164 165 166
PP B A A A A A A B
97% PP + 3% L-MODUTM B A A A A A A A B
Expanding the process window by adding L-MODUTM
TDO stretching temperature is reduced.
<Stretchability evaluation - TDO stretching process window>
Machine : Our laboratory stretching machine Material : MDO sheet(×5)MDO ratio / Temp. : 5.0(MDO) / 147oC
MDO Sheet thickness : 0.2 mmTDO ratio : 9TDO Strain rate:6600 %/min
Material
PP : standard BOPP (MFR = 3.0g/10min, mmmm= 90 mol%)
L-MODUTM : S901 (MFR= 50g/10min)
Evaluation
A : The stretched film was checked visually, and there was no problem.
B : The stretched film was checked visually, and there was uneven thickness of the film (Not breaking )
1. Improvement stretchability- Expanding the process window -
14
Data in this material shows sample figures measured under certain specific conditions.2005-04
T-die
Casting
Annealing & RelaxationTD stretching(Tenter)
MD stretching
(Roll to roll) Random PP
LLDPE, LDPE
← Homo PP
←
Roll temp. must be set low
to prevent film sticking to
rolls.
Reduction of productivity
・film breaking
・lower line speed
・larger variation in film
thickness
←Random PP
LLDPE, LDPE
2. Increasing productivity
15
Data in this material shows sample figures measured under certain specific conditions.2005-04
Adding L-MODUTM enable stretch at low TDO temperature.
Evaluation
A : The stretched film was checked visually, and there was no problem.
B : The stretched film was checked visually, and there was uneven thickness of the film (Not breaking )
<Stretchability evaluation - TDO stretching process window>
158 159 160 161 162 163 164
PP B A A A A A
97% PP + 3% L-MODUTM B A A A A A A
PP B A A A A
97% PP + 3% L-MODUTM B A A A A A A
PP B A A A
97% PP + 3% L-MODUTM B A A A A A
TDO Temperature / ℃
147
127
107
MDO
Temp.
Material
PP : standard BOPP (MFR = 3.0g/10min, mmmm= 91 mol%)
L-MODUTM : S901 (MFR= 50g/10min)
Machine : Our laboratory stretching machine Material : MDO sheet(×5)MDO ratio : 5.0(MDO)
MDO Sheet thickness : 0.2 mmTDO ratio : 9TDO Strain rate:6600 %/min
2. Increasing productivity
16
Data in this material shows sample figures measured under certain specific conditions.2005-04
Adding L-MODUTM S901 in a core layer enable stable
BOPP film production with low MD stretching rolls temp.
MD TD
Stretching
Temp.(℃)Pre-heating
Temp.(℃)
Stretching
Temp.(℃)
Skin :Homo PP
Core:Homo PP
Skin :Homo PP
140~150 135~145 GOOD
Skin :Random PP, PE
Core:Homo PP
Skin :Random PP, PE
80~120 75~115 BAD
Skin :Random PP, PE
Core:Homo PP + L-MODUTM
Skin :Random PP, PE↑ ↑ GOOD
Concept
Application examples
> Paper lamination film (matt type)
> Lower temperature heat sealable film
> Hologram film
2. Increasing productivity
17
Data in this material shows sample figures measured under certain specific conditions.2005-04
3. Excellent property - Heat sealable film -
18
Data in this material shows sample figures measured under certain specific conditions.2005-04
L-MODUTM S901 % 0 5
MDOTemp. ℃ 106 106
Stretching ratio ー 5 5
TDOStretching temp. ℃ 165 165
Stretching ratio ー 8.5 8.5
Haze % 1.3 1.1
Gloss (60º) % 129 144
Coefficient of
static friction
inside/
outside― 0.45 0.47
Blocking strength g/100cm2 1.84 0.53
PicC:breaking of membrane
% 4.6 2.8
Pic.D:falling off of AB agent
% 0.5 0.2
Magnified photo of AB agent 【SEM ×2000】
• Prevention of roll pollution
• Decreasing of printing failure
• Improvement of transparency
Machine :Bruckner pilot machine Film :thickness 15 μm/ width 900 mmMaterials : Core : homo PP(+L-MODUTM)
Skin : homo PP+AB agent MB(2.0%) (+L-MODUTM)Line speed :50m/min.*The ratio of the number of “C” or”D” in “A~D” in the area
C:breaking of membrane D:falling off of AB agent
A B
Adding L-MODUTM into Skin layer enable preventing separation of AB agents
and has following expected effects
3. Excellent property - Preventing separation of AB agents -
19
Data in this material shows sample figures measured under certain specific conditions.2005-04
Stretchability
Process window
Gross
TransparencyMoisture and
Oxygen barrier
Modulus
Capability to down-gauge
The use of highly crystallinity PP with L-MODUTM has the
following advantages.
Standard BOPP GradeHigh crystallinity PPHigh crystallinity PP + L-MODUTM
4. Possible to use high crystallinity PP
20
Data in this material shows sample figures measured under certain specific conditions.2005-04
Good Stretchability
<S-S curve at TD stretching>
Machine :Bruckner laboratory stretching machine KARO IV
Material : MDO sheet(×5)
TDO ratio : 8.0、9.5
Stretching speed:200 %/s
Standard BOPP GradeHigh crystallinity PPHigh crystallinity PP + L-MODUTM
Enable to produce BOPP films easily even by using
high crystallinity PP
Improvement of stretchability
4. Possible to use high crystallinity PP - Good stretchability -
21
Data in this material shows sample figures measured under certain specific conditions.2005-04
<Mechanical and optical property>
excellent optical properties
improvement for balance of film properties (mechanical,
optical, etc.) especially for high crystallinity PP
Stretching Machine :Bruckner laboratory stretching machine KARO IVStretching ratio : 5(MDO) ×9.5 (TDO)
Film thickness : 20 μm※ Appropriate stretching temperature is necessary for good film properties.
Standard BOPP GradeHigh crystallinity PPHigh crystallinity PP + L-MODUTM
4. Possible to use high crystallinity PP - High modulus & high transparency -
22
Data in this material shows sample figures measured under certain specific conditions.2005-04
Adding L-MODUTM into a core layer enable
Expanding the process window
better thickness uniformity
stable BOPP film production with low MD stretching rolls temp.
reducing frequency of film breaking
faster line speed
excellent low-temperature heat sealability
Improvement transparency
Adding L-MODUTM to homoPP having high crystallinity enable
Down-gauge to produce thinner films
Stretchability equal to or higher than BOPP grade
Mechanical and optical properties higher than BOPP grade
Proposal :
23
Data in this material shows sample figures measured under certain specific conditions.2005-04
Appendix
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Data in this material shows sample figures measured under certain specific conditions.2005-04
1.0
2.0
3.0
4.0
0 1 2 3 4 5
MF
R(2
30
℃, 2
.16㎏)
[g/1
0m
in]
L-MODUTM S400 amount [%]
MFR(3.0) PP + S400
MFR(2.5) PP + S400
MFR(2.0) PP + S400*
L-MODUTM can control the flow ability of molten resin.
*Calculated value
1.0
2.0
3.0
4.0
0 1 2 3 4 5
MF
R(2
30
℃, 2
.16㎏)
[g/1
0m
in]
L-MODUTM S901 amount [%]
MFR(3.0) PP + S901
MFR(2.5) PP + S901
MFR(2.0) PP + S901
*
Improvement of flow ability
25
Data in this material shows sample figures measured under certain specific conditions.2005-04
1. Data and description in this material are information for design of products made from L-MODU™. The content of
this material is based upon reliable test and information, but it is not absolute and perfect. Whenever the content of
this material is used for design of your products, please test and confirm independently appropriation of such
design. The content of this material does not warrant the successful result of its application to your own purpose
and usage.
2. The content of this material is based upon reliable tests and information, but it does not warrant the successful
results of its application to your own purpose and usage.
3. Data in this material shows sample figures measured under certain specific conditions.
4. In case of product being used for purpose and usage introduced in this material, please pay attention to industrial
property rights of third party which may relate to such use.
5. The Product is a general industrial product and Seller does not guarantee the quality of medical equipment, medical
products and cosmetics. In case of the product being used for food applications and toys, please consult with the
manufacture before such use.
6. Please note that the content of this material may be altered from time to time according to improvement of products
without prior notice.
7. Figures of physical characteristics of other resins than the products have been referred from other catalogues and
sources thereof.