New Dispersion Design Concepts for 1K Waterborne Protective Coatings

150 years New dispersion design concepts for 1K water-borne protective coatingsAcronal® PRO and Joncryl® PRO dispersions

150 years

Uwe Meisenburg, Manfred Dargatz, Ulrich TromsdorfEuropean Coatings Show 2015

150 years

Table of content

Widely spread research activities for coatings

New technologies to meet market demands

Water-based binders

Crosslinker chemistry

Our portfolio of 1K acrylic dispersions

Conclusion

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150 years

Coatings as basic technology is addressed by widely spread research activities

Solvent-based2K PU coatings

Water-based2K PU coatings

Protectivecolloiddispersions

Colorscience

Water-basedPU dispersions

Paintformulation

Coatingadditives

UVresins

Coatings markets Coatings materials & systems research

BASF Acronal®& Joncryl®dispersions

Protection Decoration

® = Registered trademark of the BASF Group 3

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New technologies to meet market demandsBetter performanceat reasonable cost

Low VOC & Non-leaching

Renewableraw materials

New bindertechnologies

Hybrids of different polymer classes

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Starch & lignintechnology

Advanced emulsion polymersNew morphologies& stabilization concepts

100nm 100 nm

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New binder technologies for various applications

COL.9

Hybrids

Joncryl HYB

Exterior

Organic/inorganichybrids

PU/PAc hybrids

Wood

Further development of classical technologies Acronal

Automotivebasecoats

Luphen®

Adhesives

Protective colloids

Acronal, Styronal®, Joncryl

(Renewable)Protectivecolloids

PaperAnticorrosion &Industrial Coatings

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AdvancedProtectivecolloids

Emulsion polymers

PU dispersions


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From binders to coatings

Synthesis of binder

Classical emulsion polymerStabilized with emulsifier

Coating

Incomplete film formationwith potential defects

Formulation & application

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Emulsion polymerization is a basic approach for the synthesis of water-based binders

Acrylic esterVinyl esterStyreneButadiene

Comonomers -OH -COOH -CONH2 -CONHCH2OH

EmulsifiersR-COONaRSO3NaR-O(CH2-

CH2O)xH

Water Initiator

Emulsion Polymer dispersion

Monomers

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Variation of chemistry

Polymer (main monomer composition)Stabilizing groupsParticle sizeParticle size distributionParticle morphologieProcess

Mechanical propertiesChemical propertiesApplication properties…

Linear chains

Crosslinking

CO

NH CH2 OH

CO

NH CH OHCOOH

CO

NH CO

CO

O OO O

C C O CH2CH2O

NCO

NHCH3 CH2CH2

CO

O M2+

CO

O CH CH2

O

Photo initiatorIsocyanate

(Meth)acrylateVinyl esterStyrene

MAMOL

AAG

GMA

DAAM + dihydrazide

AAEM

UMA

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Protective colloid stabilized dispersions combine excellent hardness and film formation

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In-situ protective colloidHigh Tg

Neutralizationand swellingDeprotonation of acid

Second step emulsion polymerizationSecond soft stage Combination of excellent

film formation and blocking resistance Fine particle size leads to

good film formation

New high-end dispersions

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Low electrolyte containing binder for anticorrosion coatings

Solid resin

Neutralizationand dispersion

Advancedprotective colloid

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Crosslinking

Functionalization No emulsifiers and ionic initiators Balance between film formation and crosslinking Target properties can be adjusted by post-

functionalization Very good chemical resistance and adhesion to

various metal substrates Improved humidity and salt spray resistance Good dry and wet adhesion on steel and

galvanized steel

New binders for industrial DTM and primers

Dry Adhesion Wet Adhesion

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High morphology control leads to film strength and mechanical robustness

Film properties of protective colloid dispersions

Film formation

Conventional multi-stage

Hydroplastification of protective colloid provides low MFFT and good film formationContinuous hard phase leads to excellent

mechanical properties, high blocking resistance and hardness

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Key coating properties strongly depend on crosslinking efficiency

Crosslinking density

Performance (e.g. chemical resistance)

2K technologies

1K wb acrylicself-crosslinking

1K wbacrylic

1K wb acrylic and PCDI

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Selected crosslinking chemistries lead to improved film properties

CO

NHDAAM

CO

CO

O OO O

AAEM

GMACO

O CH CH2

O

Condensation with hydrazides or amines Self-condensation

Addition of hydroxy groups or carboxylates

CO

OCrosslinking with metal salts or polycarbodiimides

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Functional monomer provides adhesion and cohesion

F F-H

NO

O

N

O

>N-H- OH

Polymeric Velcro®

Non-covalent cross-linking forHigh adhesionHigh cohesion and heat resistance

Crucial parameters for high performanceStrong permanent dipole H-bonding less important

Functional Monomer

F = functional group


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Promising technologies show significant improvement over established systems

Functional groups generate significant improvement to various substrates in dry and wet stateConventional EP Multi-stage

Functional groups

Post-modification

Salt spray test 720h in clear coat

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1K acrylic dispersions for protective coatings Corrosion protection Adhesion to various

substrates, incl. old paint layers

Formulation flexibility Early water resistance VOC regulation

Mul

ti la

yer

DTM

Gloss, appearance Adhesion Corrosion protection VOC Chemical resistance

Joncryl PRO 1532 Primer40-50%

Acronal PRO 80

Acronal PRO 780(planned launchQ4/2015) New product C3+

(planned launch in 2017)Acronal PRO 8977

Acronal PRO 760(APEO until Q4 2018) Acronal PRO 761 Acronal PRO 763

Joncryl PRO 1537Joncryl PRO 1555

DTM20-30%

New DTM dispersion withimproved wet adhesion

Joncryl PRO 1532Joncryl PRO 1537Joncryl PRO 1555Joncryl PRO 1555

Performancelevel

C4 - C5

WB < 1%

C1 - C2

WB 16%

C2 - C3

WB 3-4%

established new

Prim

er

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1K acrylic dispersions for protective coatings

Technology Key properties Recommended products Attributes

C1-C2Fast dryingAnti-blockingSandabilityBroad adhesion

Joncryl PRO 1532 Fast dryingEarly water resistance

Joncryl PRO 1537 Improved hardness& salt spray resistance

Joncryl PRO 1555Joncryl PRO 1522 (DTM)

High antiblocking & adhesionChemical resistance

C2-C3 Early rain resistance

Acronal PRO 760 (APEO)Acronal PRO 761Acronal PRO 8977

WorkhorseEcology, APEO freeImproved hardness

Adhesion to metal Acronal PRO 763 Economical solutionC3-C4Humidity resistance

Acronal PRO 780 Good anti-corrosion properties

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RC – Rheology Controlled

Self-crosslinking

Core-shell

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Conclusion

We drive continuous shift from solvent-borne to water-borne coating technologies

New binder technologies along with further developed emulsion polymers lead to new property profiles and help to combine conflicting properties

Research activities focus not only on the development of new binders but also on gaining fundamental understanding on formulation and the complex interplay of its components

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Please get in touchYou are highly welcome at our booth No. 523, hall 7a

Uwe MeisenburgTechnical [email protected]

150 years

150 years