Efka® PX 4350 / Efka® PX 4751

150 years

Efka® PX 4350 Efka® PX 4751

Peak performance, solvent based dispersing agents for Cu-phthalocyanine pigments

Formulation AdditivesDispersions & Pigments Division

European Coatings Show 2015

150 years

Content

Efka® PX 4350 and Efka® PX 4751 – Peak performance, solvent based dispersing agents for Cu-phthalocyanine pigments

Dispersing agents – Basic definitions

Dispersing agents – Performance benefits

Summary

Efka® PX 4350 and Efka® PX 4751 – Proven performance

Back-up

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Content




Summary


Back-up

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Dispersing agentsFocus products for solvent-based systems

Inorganic pigmentsClassic organic pigmentsHigh performance pigmentsHCC black and phthalocyanine

Inorganic pigmentsClassic organic pigmentsHigh performance pigments

Inorganic pigmentsClassic organic pigments

Efka® PX 4310 1

Efka® PX 4330 1

Efka® PU 4020

Efka® PA 4450Efka® FA 4608

Efka® PU 4009

solv

ent-b

ased

Efka® PU 4050 Efka® PU 4061Efka® PU 4046 / 4063

Efka® FA 4620 2 / Efka® FA 4609 2

1 CFRP technology (Controlled Free Radical Polymerization)

Decorative OEM / Refinish / Coil coatingGeneral industrial

2 Inorganic pigments and fillers/extenders only

Efka® PX 4751 / Efka® PX 4350 1

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Efka® PX 4350 and Efka® PX 4751Solvent based dispersing agents

Efka® PX 4751 is especially suited to disperse α-blue pigments,reducing the thixotropic behavior of the mill base

Efka® PX 4350 sets a new standard in dispersing ß- and Ɛ-blue pigments and pigment green, providing Newtonian rheology at high pigment loading

Efka® PX 4350 - designed with CFRP technology for increased efficiency and use with or without a pigment synergist (Efka® MI 6745)

Designed for solvent based and high solids industrial and OEM and Refinish coatings applications

Broad compatibility towards acrylate/CAB, 2-Pack solvent-based PU, 2-Pack solvent-based epoxy

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Content




Summary


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Dispersant needs to cover whole pigment surface to provide stabilization

Correct dosage level depends on pigment surface area

Actual dosage needs to be determined with ladder study

Dispersing agents – Basic definitionsHigh Molecular Weight Dispersing Agents

Starting point (% active dispersant/pigment) recommendations

Organic pigments: 20-50 % of BET value or surface area Blue, green, violet (typically higher surface areas) start at 25% Red, yellow, orange (typically lower surface areas) start at 35%

Inorganic pigments: 10% of oil absorption value Carbon blacks: 20%-50% of DBP absorption value LCC carbon blacks, start at 20% HCC carbon blacks, start at 40%

pigment particle surface

+ dispersant

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Well defined structures → higher efficiency of anchoring groupsIncreased adhesion to the pigment surface for improved flocculation resistance and consistent color development

Well defined structures → precise control of polymeric backboneExcellent stabilizing properties through optimum compatibility

Dispersing agentsBasic definitions: CFRP Technology

Well defined polymers are accessible with Controlled Free Radical Polymerization based on proprietary technology

Pigment surface

randomCopolymer

blockCopolymer

(CFRP)

combCopolymer

lower efficiency higher efficiency

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Content




Summary


Back-up

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Dispersing agentsNew solutions: Efka® PX 4350 and Efka® PX 4751

Would you like to…

formulate with highly efficient dispersing agents for α-, ß- and Ɛ-phthalo blue and phthalo green pigments?

control the rheological behavior of the mill base?

avoid possible bleeding caused by pigment synergists?

improve color development?

We have the answers: Efka® PX 4350 and Efka® PX 4751

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Efka® PX 4350 and Efka® PX 4751Benefits

Performance highlights Benchmark performance for α-, β- and Ɛ- phthalo blue and phthalo green pigments

Improved rheological behavior

Excellent color strength in RCPC* systems

Broad compatibility in a wide range of resin systems

No synergist is needed in most cases

*Resin containing pigment concentrates

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Content




Summary


Back-up

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Efka® PX 4751 is especially suited to disperse α-pigments: reducing the thixotropic flow behavior of the mill base leading to easier handling

Efka® PX 4350 sets a new standard in dispersing ß- and Ɛ- pigments; it is also recommended for phthalo green pigments; provides Newtonian rheology at high pigment loading

Positioning overview

PB 15:1 PB 15:2 PB 15:3 PB 15:4

Efka® PX 4751

Efka® PX 4350

PG 7

suitable recommended

PB 15:6

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Efka® PX 4350 and Efka® PX 4751Solvent based dispersing agents

Efka® PX 4751 is especially suited to disperse α-pigments reducing the thixotropic behavior of the mill base

Efka® PX 4350 sets a new standard in dispersing ß- and Ɛ-pigments and is recommended for phthalo green pigments provides Newtonian rheology at high pigment loading

Efka® PX 4350 - designed with CFRP technology for increased efficiency and use with or without a pigment synergist

Designed for solvent based and high solids industrial and OEM and Refinish coatings applications

Broad compatibility towards acrylate/CAB, 2-Pack solvent-based PU, 2-Pack solvent-based epoxy

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Summary


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Performance tests Tested systems Industrial Coatings and Automotive applications

Test system Dispersion2-Pack solvent based PU Joncryl® 902

Basonat® LR 9046

2-Pack solvent based EP Epikote® 1001Versamid® 115

OEM solvent based basecoat CAB 551-0.2 Joncryl® 507Luwipal® 066 LF

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Performance tests – Tested systemsIndustrial and automotive coatings

Pigment concentrates: Industry Grinding Resin

Resin Containing Pigment Concentrates

GIP Laropal® A 81

Resin Containing Pigment Concentrates

OEM / Refinish CAB / Joncryl® 507

Pigments: Product name

Phthalocyanine blue PB 15:1 OEM Heliogen® L 6950

Phthalocyanine blue PB 15:4 OEM / GIP Heliogen® L 7101 F

Phthalocyanine green PG 7 OEM / GIP Heliogen® L 8730

Dispersants

Efka® PX 4350 Product A Product B

Efka® PX 4751 Product A + Synergist Efka® PX 4330

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Pigment Blue 15

Most important blue pigment in coatings industry

BASF is one of the main producers

5 crystal modifications

Crystal forms α and β most important for industry

Pigment Green 7

Halogenated form of phthalocyanine

Cu Phthalocyanine Pigments

Pigment Blue 15

PB 15:1 PB 15:2 PB 15:3 PB 15:4 PB 15:6 PG 7

α, reddish, unstable β, greenish, stable Ɛ, particularly reddish α, bluish, stable

Heliogen Blue L6950

Heliogen Blue L6975

Heliogen Blue L7085

Heliogen Blue L7101F

Heliogen Blue L6600F & L6700F

Heliogen Green L8730

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Performance tests –Polymeric dispersing agents tested

Name Active content [wt.%] Chemistry

Efka® PX 4350 51% in MPA Acrylic block copolymer

Efka® PX 4751 51% in MPA Polymer with pigment affinic groups

Product A40% in butyl acetate Polymeric dispersant

Product A+ Synergist

~ 40% in butyl acetate Polymeric dispersant / dye

Product B52% in MPA Solution of a block-copolymer with basic pigment

affinic groups

Efka® PX 4330 70% in MPA Acrylic block copolymer

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Performance tests – Test methods

Test MethodViscosity / Stability Measurement of mill base viscosity at various shear rates before and after storage at

50°C

Color strength / Rub-out / Chroma

Addition of pigment concentrate to a white (or black) base paint. Application on black and white card and check rub-out: Measurement by colorimeter. Chroma is the saturation of a color, the higher the chroma the “cleaner” a color

Weathering Accelerated weathering according SAE J1960 (CAM-180) to investigate changes in coloristic of a tinted aluminum effect coating (alu-reduction) test running

Gloss Check influence of dispersing agents on gloss of the tinted paints using a gloss meter

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Performance testsHeliogen® green L8730 (PG 7)

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1.00

10.00

100.00

1000.00

10000.00

40 40 40 40 40 40

Efka PX 4350 Efka PX 4751 Product A Product A+Synergist

Product B Efka PX 4330

Visc

osity

[mPa

s]

Before storage Shear rate GP[1/s] 10

After 2 weeks@50°C Shear rate GP[1/s] 10

DG L8730-A81 DOP40

Mill base viscosity: Heliogen® Green L873020% pigment load (PL) / 40% dispersant on pigment (DOP) in Laropal® A81

Efka® PX 4350 shows lowest viscosity at 40% dispersant level

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10.00

100.00

1000.00

10000.00

20 30 40 20 30 40 20 30 40 20 30 40

Efka PX 4350 Efka PX 4751 Product A Product A + Synergist

Visc

osity

[mPa

s]

Shear rate GP[1/s] 1






DG A81-L8730

Mill base rheology: Heliogen® L8730 20% PL in Laropal® A81- Viscosity vs. shear rate

Efka® PX 4350 reduces the pseudo-plastic behavior of the mill base

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DG A81-L8730 fresh PUR DOP40

Color development in 2-pack PUHeliogen® L8730/Laropal® A81Dispersant dosage: 40% active on pigment, before storage

Efka® PX 4350 demonstrates improved color strength at 40% dosage level

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Color development in 2-pack PUHeliogen® L8730/Laropal A81Dispersant dosage: 40% active on pigment, before storage

Product A + Synergist Efka® PX 4350 Efka® PX 4751

Product A Product B Efka® PX 4330

Efka® PX 4350 shows excellent rub-out results at 40% DOP 25

150 years

Performance testsHeliogen® blue L6950 (PB 15:1)

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Efka PX 4350 Efka PX 4751 Product A Product A +Synergist


Visc

osity

[mPa

s]


After 2 weeks@50°C Shear rate GP[1/s]DG A81-L6950-DOP20

Mill base viscosity: Heliogen® Blue L6950 10% PL / 20% DOP in Laropal® A81

Efka® PX 4751 demonstrates benchmark performance at 20% DOP

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DG A81-L6950 fresh PUR DOP20

Color developmentHeliogen® Blue L6950/2-Pack PUDispersant dosage: 20% active on pigment, before storage

Efka® PX 4751 shows comparable color strength at 20% DOP

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Color development in 2-pack PUHeliogen® Blue L6950/Laropal® A81Dispersant dosage: 30% active on pigment, before storage



Efka® PX 4751 shows good rub-out results 29

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DG CAB-L6950 fresh CAB/AC DOP20

Color developmentHeliogen® Blue L6950/CAB-AcrylateDispersant dosage: 20% active on pigment, before storage

Efka® PX 4751 shows higher color strength at 20% DOP

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Color development in CAB-AcrylateHeliogen® Blue L6950/CAB-AcrylateDispersant dosage: 30% active on pigment, before storage



Efka® PX 4751 shows excellent rub-out results 31

150 years

Performance testsHeliogen® blue L7101F (PB 15:4)

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10.00

100.00

1000.00

30 30 30 30 30 30



Visc

osity

[mPa

s]


After 2 weeks@50°C Shear rate GP[1/s] 10

Mill base viscosity: Heliogen® Blue L7101F 15% PL / 30% DOP in Laropal® A81

Efka® PX 4350 shows best performance in mill base viscosity

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10.00

100.00

1000.00

10000.00

100000.00

20 30 40 20 30 40 20 30 40

Efka PX 4350 Efka PX 4751 Product A + Synergist

Visc

osity

[mPa

s]

Shear rate GP[1/s] 1Shear rate GP[1/s] 10Shear rate GP[1/s] 80Shear rate GP[1/s] 100Shear rate GP[1/s] 400Shear rate GP[1/s] 1000

DG L7101F-A81 fresh

Mill base rheology: Heliogen® L7101F 15% PL in Laropal® A81- Viscosity vs. shear rate

Efka® PX 4350 reduces the pseudo-plastic behavior of the mill base

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DG A81-L7101F fresh PUR DOP30

Color development in 2-pack PUHeliogen® L7101F/Laropal® A81Dispersant dosage: 30% active on pigment, before storage

Efka® PX 4350 shows benchmark performance at 30% DOP dosage levels

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Color development in 2-pack PUHeliogen® L7101F/Laropal® A81Dispersant dosage: 30% active on pigment, before storage



Efka® PX 4350 shows excellent rub-out results 36

150 years

60

65

70

75

80

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90

95

100

20 30 40 20 30 40 20 30 40 20 30 40 20 30 40 20 30 40



Glo

ss 6

0°

DG A81-L7101 PUR fresh

Gloss in 2-pack PUHeliogen® L7101F/Laropal® A81Dispersant dosage: 20% / 30% / 40% active on pigment, before storage

Efka® PX 4350 shows highest gloss at all dosage levels

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DG CAB-L7101 fresh CAB/AC DOP30

Color development in CAB-AcrylateHeliogen® L7101F/CAB-AcrylateDispersant dosage: 30% active on pigment, before storage

Efka® PX 4350 shows much higher color strength than the benchmark

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Color development in CAB-AcrylateHeliogen® L7101F/CAB-AcrylateDispersant dosage: 30% active on pigment, before storage



Efka® PX 4350 shows excellent rub-out results and higher color strength 39

150 years

Adhesion directly on ED coating

Test method:

RCPC mill base containing CAB / acrylate

30% dispersant on pigment

Adhesion results after 2 weeks humidity cabinet

Classification of test results according to EN ISO 2409 (0-5)

Steel panels GARDOBOND 26S/6800/OC + ED Coating

OEM 1-Pack basecoat Solid content: 33,59%Curing conditions: 20 flash-off + 30 min.@130°CFilm thickness: 24µm DFT

OEM 1-Pack clearcoatCuring conditions: 20 flash-off + 30 min.@130°CFilm thickness: 24µm DFT

Special requirement Automotive/OEM

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Adhesion on ED coatingOEM basecoat with Heliogen® Blue L 6950

Product A Efka® PX 4751 Efka® PX 4350

Best results obtained for Efka® PX 4350 and Efka® PX 4751

ED coating+ basecoat +1-Pack OEM clearcoat

ED coating+ basecoat with pigment concentrates based on L6950

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Adhesion on ED coatingOEM basecoat with Heliogen® Blue L 6950

Efka® PX 4330 Product C Product A + Synergist

Product C and Efka® PX 4330 did not properly cure

ED coating+ basecoat +1-Pack OEM clearcoat

ED coating+ basecoat with pigment concentrates based on L6950

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Performance tests and recommendations forHeliogen® blues L6600F and L6700F(PB 15:6)

Ɛ-Phthalo Blue 15:6

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Efka® PX 4350Product characteristics

Property Method Datasolvent 1-methoxy-2-propyl

acetatedensity at 20 °C (68 °F) X230 ~ 1.04 g/cm3

active ingredients X231 ~ 51%

amine value ~ 12 mg KOH/g

color X237 ≤ 14

Guide formulations for resin containing pigment concentrates (RCPC)

Heliogen® Blue Heliogen® GreenL7101F L8730

Colour Index (Pigment…) PB 15:4 PG 7

Efka® PX 4350 9.00 16.00Methoxy propyl acetate 51.00 30.70Laropal® A81, 60% in MPA 25.00 33.30Pigment 15.00 20.00

100.00 100.00

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Efka® PX 4751Product characteristics

Property Method Datasolvent 1-methoxy-2-propyl

acetatedensity at 20 °C (68 °F) X230 ~ 1.03 g/cm3

active ingredients X231 ~ 51 %

amine value ~ 12 mg KOH/g

color X237 ≤ 7

Guide formulations for resin containing pigment concentrates (RCPC)

Heliogen® BlueL6950

Colour Index (Pigment…) PB 15:1

Efka® PX 4751 6.0Methoxy propyl acetate 67.30Laropal® A81, 60% in MPA 16.70Pigment 10.00

100.00

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Application setup

Pigment concentratesPigment Color Index Pigment loadHeliogen® L 6950 PB 15:1 10%wtHeliogen® L 7101 F PB 15:4 15%wtHeliogen® L 8730 PG 7 20%wtRCPC P/B ration SolventCAB/Acrylate 1/1 MPALaropal® A81 1/1 MPA

ColorimetryTest system P/B ration White reduction2-Pack PU 1/0.7 80/202-Pack EP 1/0.7 80/20OEM Basecaot 1/2 80/20

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Disclaimer

SafetyWhen handling the mentioned products, please comply with the advice and information given in the safety data sheets and

observe protective and workplace hygiene measures adequate for handling chemicals.

NoteThe data contained in this publication are based on our current knowledge and experience. In view of the many factors that may

affect processing and application of our products, these data do not relieve processors from carrying out their own investigations and tests; neither do these data imply any guarantee of certain properties, nor the suitability of the product for a specific purpose. Any descriptions, drawings, photographs, data, proportions, weights, etc. given herein may change without prior information and do not constitute the agreed contractual quality of the product. The agreed contractual qualityof the product results exclusively from the statements made in the product specification. It is the responsibility of the recipient of our product to ensure that any proprietary rights and existing laws and legislation are observed.

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150 years

Efka® PX 4350 / Efka® PX 4751

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