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Confidential
Dr. Hartmut Siebert, MSc
BU Additives
BL Performance Additives
17.01.2019
High performance stabilizer with enhanced hydrolytic stability and reduced NIAS
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Table of Contents
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS2
– Clariant History
– AddWorks Solutions
– Benefits for extrusion process
– Evaluation of hydrolytic stability
– Adding Value to High Speed BOPP
– Cost efficient solution for LLDPE processing
– Long Term Heat Stabilization
– Product Form
– Key Benefits
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Clariant History
Public, Performance, Growth and Innovation3
1995 2000 2006 2011 2012 2015 2017 2018
1995
Clariant Swiss parent
company created in a
spin-off and subsequent
IPO of the Sandoz
Chemicals Division
1997
Acquisition of Hoechst AG
specialty chemicals
business
2000
Acquisition of British BTP
2001 – 2007
Divestment of several
bigger businesses due to
financial difficulties resulting
from BTP acquisition
2006
Acquisition of Ciba
Masterbatches
Divestment of
Pharmaceutical Fine
Chemicals
2008
Change in management
2009
Launch of Clariant
Excellence
2009 – 2010
Restructuring phase
2011
Acquisition of Süd-Chemie
Roll-out of new Clariant
Corporate Values
2012
Clariant rebranding
Introduction of new
corporate mission and
vision
2013
Opening Clariant
Innovation Center in
Frankfurt, Germany
2013 – 2014
Divestment of 5
businesses
2014
Sustainability
becomes strategic pillar
2015
Establishment of Global
Business Services
Clariant celebrates its 20th
birthday
2016
Acquisition of Kel-Tech
and X-Chem in the U.S.
2017
Announcement of planned
merger with Huntsman
White Tale Holdings steps
in
Termination of merger
Strategy update started
2018
SABIC becomes Clariant’s
biggest shareholder by
acquiring the stake of White
Tale
Clariant and SABIC sign
memorandum of
understanding and
governance agreement
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
AddWorks Solutions
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS4
– A unique combination of a differentiated
chemical formulation offered in the most-
convenient-to-handle physical form.
– Solutions developed by Clariant Polymer
Additives to satisfy specific market needs.
– By leveraging on Clariant`s products,
expertise, know-how, production
capabilities, AddWorks remove complexity
and cost at our customers.
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Fully integrated approach to provide customer specific performance
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS5
Customer specific benefits in a fully integrated way.
Low migration
Enhanced metallisation
In-process cleaning
Cost efficiency
Superior colour
Enhanced melt stability
Excellent hydrolytic stability
Low gel formation
Low water carry over
Enhanced pressure pipe life-time
AddWorks LXR 5 solutions
Benefits for extrusion process
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Melt formation and extrusion
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS7
Several critical zones for polymers in the extrusion process
shearO2
hopper with polymer
drive
melt formation zone hot barrel filling channel
screen packcompression zoneheating jacket
high flow
velocity
heat
die
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Addworks LXR 568 is activated early during plastic processing and efficiently protecting the resin melt
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS8
The low melting temperature of AddWorks LXR 568 contributes to a superior melt homogeneity and
an efficient reduction of gels and defects in films.
Softening temperature interval
AddWorks LXR 568
Typical melting point of
single stabilizer
i.e. Phosphite 168 or
Cyclic Phosphite 626
ca. 90 °C
See the
difference
ca.180 °C_
_
_
_
_
_
_
_
_
_
Evaluation of hydrolytic stability
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Hydrolysis Stability in PE Zip Bag
DTBP CONTENT (%)
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS10
Significant higher hydrolytic stability vs specialty phosphites. Easy to handle.
Formation of NIAS is retarded.
PS 168
PS 626
PS 627
P-EPQ
LXR 568
MONTH
0
5
10
15
20
25
30
35
40
0 2 4 6 8 10 12 14
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Processing StabilizerExperiment – Hydrolytic stability test
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS11
Stored in oven set at 60 C
Figure: Hopper car testing system
The Hopper car test generates a saturated humidity atmosphere
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Hydrolysis stability in Hopper Car Test
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS12
0
10
20
30
40
50
60
70
80
90
0 500 1000 1500 2000
DTB
P (%
)
Hour
Hostanox P-EPQ
AddWorks LXR 568
PS 626
PS 627
PS 168
– Significant higher hydrolytic stability vs specialty phosphites. Easy to handle.
– Formation of DTBP is deferred.
Confidential
Dr. Hartmut Siebert, MSc
BU Additives
BL Performance Additives
17.01.2019
Evaluate comparative cleaning effect of HostanoxP-EPQ versus LXR 568 in LLDPE
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Appearance of initial screw
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS14
Blank initial screw
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Appearance of screw after MB production and after keep it under room temperature for 1 day
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS15
Immediate after MB production After keep for 1 day
After production of LLDPE Masterbatch with 10% P-EPQ screw gets rusty
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Appearance of screw after MB production and after keep it under room temperature for 1 day
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS16
Immediate after MB production After keep for 1 day
After production of LLDPE Masterbatch with 10% AddWorks LXR 568, screw looks nice and clean
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Number of gels in LLDPE films with MB - Compounding process with rusty screw
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS17
0
20
40
60
80
100
120
140
LLDPE 1000 ppm LXR 568 1000 ppm P-EPQ
De
fec
t (1
/m2
)
Film thickness: 30 µm, Measurement area: 3 m2, Camera FSA 100 of OCS, Dark level: -50-25%
50-100 µm100-200 µm200-300 µm300-400 µm400-500 µm>500 µm
Note: Rusty screw and barrel was used to compound the formulations after purging screw by commercial LLDPE
Less gels with AddWorks LXR 568 compared to P-EPQ
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Number of total gels in LLDPE films with MB - Compounding process with rusty screw
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS18
145.63
98.52
149.27
0
20
40
60
80
100
120
140
160
LLDPE 1000 ppm LXR 568 1000 ppm P-EPQ
De
fec
t (1
/m2
)
Film thickness: 30 µm, Measurement area: 3 m2, Camera FSA 100 of OCS, Dark level: -50-25%
Note: Rusty screw and barrel was used to compound the formulations after purging screw by commercial LLDPE
34 % less gels with AddWorks LXR 568 compared to P-EPQ
Adding Value toHigh Speed BOPP
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
High Processing stability for BOPP film grade
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS20
Additive loading can be reduced by a factor of 2 to 3
Less plate out, less blooming, less die built-up
44 % better MFR protection than PS 168
68 % better color protection than PS 168
No color improvement by increasing concentration of PS 168
MFR 230 °C / 2.16 KG (G/10MN) YELLOWNESS INDEX
Base Resin: BOPP, MFR = 2.0; Base Stabilization: 300 ppm Hycite 713 + 500 ppm AO 1010
Pass 0 Pass 1 Pass 3 Pass 5
2
3
4
5
6
7
8
0.07 % PS 168 0.1 % PS 168 0.14 % PS 168 0.07 % LXR 568
Pass 0 Pass 1 Pass 3 Pass 5
-202468
101214
0.07 % PS 168 0.1 % PS 168 0.14 % PS 168 0.07 % LXR 568
BAD GOOD BAD GOOD
Cost efficient solution for LLDPE processing
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
General requirements for film
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS22
– Melt and color stability
– High transparency
– Low gels
– Even film thickness profile
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Processing of LLDPE (0,918 g/cm³) at 240°C
MELT FLOW INDEX (MFI, 190°C/2,16 KG) [G/10MIN]
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS23
Superior MFR retention of LLDPE stabilized with solutions based on AddWorks LXR 568
0.2
0.5
0.8
1.1
1 2 3 4 5
0.15% AddWorks LRX 568
Base stabilization:
0,1% AO 1076 +
0,1% Ca-stearate
0.12% AddWorks LRX 568
0.20% PS 168
EXTRUSION PASSES (30 SEC/PASS RESIDENCE TIME)
Without Proc. Stab.
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Processing of LLDPE (0,918 g/cm³) at 240°C
YELLOWNESS INDEX (PELLETS)
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS24
Outstanding YI protection for LLDPE stabilized with solutions based on AddWorks LXR 568
YELLOWNESS INDEX (PELLETS)
-4
0
4
8
12
1 2 3 4 5
Without Proc. Stab.
Base stabilization:
0,1% AO 1076 +
0,1% Ca-stearate
0.20% PS 168
0.08% AddWorks LRX 568
EXTRUSION PASSES (30 SEC/PASS RESIDENCE TIME)
0.12% AddWorks LRX 568
0.15% AddWorks LRX 568
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Reduced blooming of LLDPE film
LLDPE FILM SAMPLES
(DENSITY = 0.917 G/CM3)
AFTER 1 YEAR STORAGE
AT 23 °C (73 °F)
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS25
– Excellent solubility of AddWorks LXR 568 in LLDPE
– High transparency / No blooming
– Nonyl-Phenol free solution
– Especially suitable for LLDPE cast film, where a more enhanced stabilisation is needed
Additive formulation:
200 ppm AO +
Processing Stabilizer
PS 168 AddWorks® LXR 568
Strong exudation / “blooming”
Long Term Heat Stabilization
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Oven ageing at 150°C Surface Appearance of PP plates according PS class
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS27
BS: PP + 0.1% AO 1010 + 0.1% PS + 0.2% Hostanox SE 4 (DSTDP) + 20% Talc
Initial
600
hours
PS 168 PS 626 PS 9228AddWorks
LXR 568No PS
AddWorks LXR 568 allows better surface protection than other processing stabilizers
720
hoursSamples were broken before 720 hours
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Color retention of PP plates before and after oven ageing at 150°C
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS28
0
20
40
60
80
100
120
140
No PS PS 168 LXR 568 PS 626 PS 9228
YI
Formulations
YI of PP plates before and after oven ageing at 150°C
Initial
600 hours
Formulation: PP + 0.1% PS + 0.1% AO 1010 + 0.2% Hostanox SE 4 + 20% Talc
AddWorks LXR 568 shows less yellowing compared to other processing stabilizers
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Mechanical properties retention at 150°C
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS29
0
5
10
15
20
25
30
35
40
45
50
No PS PS 168 LXR 568 PS 626 PS 9228
Str
eng
th (M
Pa)
Formulations
Strength at break of PP plates before and after oven ageing at 150°C
0
480 hours
600 hours
Formulation: PP + 0.1% PS + 0.1% AO 1010 + 0.2% Hostanox SE 4 + 20% Talc
Sam
ple
was b
roken
befo
re
600 h
ou
rs
Only AddWorks LXR 568 shows more than 50 % retention of strength at break after 600 hours
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Conclusion
– AddWorks LXR 568 shows superior performance on color stability and mechanical
properties retention in PP compound vs most common processing stabilizers in long
term heat stabilization of talc filled PP compounds.
– LXR 568 shows better appearance than PS 168, PS 626 and PS 9228 after oven
ageing at 150°C reaching 600 hr.
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS30
Product Form
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
Product Form
ADDWORKS LXR 568 MP
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS32
AddWorks LXR 568 is available as free flow, dust-free micro pills. It is easy to handle.
Key Benefits
Dr. Hartmut Siebert, MSc, BU Additives, BL Performance Additives, 17.01.2019
AddWorks LXR 568
– shows an outstanding colour stability and excellent MFR stability
– contributes to a superior oven ageing stability
– is easy to handle and is available as free flow, dust-free micro pills.
– shows a retarded formation of NIAS = non intentionally added substances
– does not hydrolyse upon exposure to moisture in the environment. It stays stable if
packaging is accidentally left open or material is transported in hopper cars
– does not hydrolyse and cause black specks as do other phosphites and
phosphonites
– can be fed better under humid conditions. It remains free flowing and full active,
whilst other phosphites or phosphonites turn sticky and lose effectiveness.
Confidential, High performance stabilizer with enhanced hydrolytic stability and reduced NIAS34