raw material for coil- and cancoating
2004-10-01
CO-PY-RT-TS 2 Technical Training Basic
Slide 16
creating essentials
Properties of Dynapol L
L 860 L 850 L 658 L 651 L 490 L 411 L 210 L 208 L 206 L 205 L 952 L 912 0 20 40 60 80 100 120 0 5000 10000 15000 20000 25000
creating essentials
Degussa B-CO Crosslinkers Performance Resins Polyesters Colorants Support
Business Unit Coatings & Colorants
2004-10-01 March 15, 2004
• OH-functional PES: excess of alcoholic component • COOH-functionel PES: excess of carboxylic component • lineare PES: only bifunctionel monomeres • branched PES: use of higher functionel monomeres •important PES-properties : acid number, OH-number, mol.weight, meltingpoint, glastransition - temperature , degree of branching , cristallinity, viscosity •stirring of PES-properties: ratio COOH/OH, monomer choise
55 56 55 63 70 63 61 61 61 61 65 62 65
2004-10-01
CO-PY-RT-TS 2 Technical Training Basic
Slide 2
creating essentials
Typical composition of high performance 2-component industrial coating systems
2004-10-01 CO-PY-RT-TS 2 Technical Training Basic Slide 6
O
creating essentials
2004-பைடு நூலகம்0-01
CO-PY-RT-TS 2 Technical Training Basic
Slide 8
creating essentials
2004-10-01 CO-PY-RT-TS 2 Technical Training Basic Slide 4
creating essentials
1
O OH + OH - H2O
HO
R
R
2
O OH
Polycondensation
O OH R1 O R2 OH R1 = aliphatic, cycloaliphatic R2 = alphatic, cycloaliphatic, aromatic
2004-10-01
CO-PY-RT-TS 2 Technical Training Basic
Slide 10
creating essentials
Application Fields for DYNAPOL Polyester
• Coil Coatings
Architectural top coatings (exterior and interior) Back coatings Primer for galvanized steel and aluminum Appliance housing
2004-10-01 CO-PY-RT-TS 2 Technical Training Basic Slide 9
creating essentials
Dynapol Polyester grades and application
• Dynapol L
• Dynapol LH • Dynapol P • Dynapol LS
high-molecular weight, solid resins coil coating, can coating, printing inks medium-molecular weight, dissolved resins coil coating, can coating high-molecular weight, solid resins can coating (powder) elastification resin
Molecular weight from 14000 - 25000 Tg from 40 - 105° C Excellent adhesion to metallic substrate High flexibility
Good corrosion and chemical resistance
• Can Coating
External basecoat and clear varnish Internal coating
side seam powder
2004-10-01
CO-PY-RT-TS 2 Technical Training Basic
Slide 11
creating essentials
Compatibility
molecular weight ( low better than high ) monomers ( aliphatic , branched ) functionallity ( high better than low )
2004-10-01
CO-PY-RT-TS 2 Technical Training Basic
Slide 14
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Metal Adhesion by Cooperative Dipole Bonds
2004-10-01
CO-PY-RT-TS 2 Technical Training Basic
Slide 15
creating essentials
DYNAPOL L
L 860 L 850 L 658 L 651 L 490 L 411 L 210 L 208 L 206 L 205 L 952 L 912
Glass transition temperature ° C
Molecular mass
2004-10-01
CO-PY-RT-TS 2 Technical Training Basic
Slide 13
creating essentials
Who is our direct Customer ?
DYNAPOL ® Sales
Lacquer Formulator
Coater
Converter
Enduser
Converter Filler
2004-10-01
CO-PY-RT-TS 2 Technical Training Basic
DYNAPOL® Polyesters for Packaging
Why Polyesters ? - taylor made products with a wide range of properties (melting point, glass transition temperature, amorphous / crystalline / partially crystalline) - good adhesion to different substrates (metal- and polymer-foils), even after extreme deformation - excellent balance of hardness and flexibility - good processability - resistance to yellowing during processing - completely free of taste - environmentally friendly (low voc or 100% solid application as melt or powder) - customer friendly (no estrogenic activity, low migration) - PVC-free, BADGE-free - suitable for food contact, most DYNAPOL grades are FDA approved
2004-10-01 CO-PY-RT-TS 2 Technical Training Basic Slide 12
creating essentials
Properties of polyesters
Solubility
molecular weight ( low better than high ) functionel groups ( high better than low ) monomers ( branched better than linear )
COLORANTS
CROSSLINKERS
+
RESINS
2004-10-01
=
Binder Systems
Solvents
Additives