Bermocoll in latex paint. AkzoNobel Performance Additives

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1 in latex paint AkzoNobel Performance Additives

2 2 AkzoNobel Performance Additives Committed to sustainability We re committed to making our products and operations more sustainable. As well as driving our own success, putting sustainability at the heart of everything we do means that our customers and employees not to mention the planet will also benefi t. But if we re to take advantage of sustainable growth opportunities, we have to accelerate the pace of our commitment. Which is why we ve adopted an approach we call Planet Possible. It s all about creating more value from fewer resources and opening up infi nite possibilities in a fi nite world. Backed up by our commitment to Product Stewardship we believe that supplying the right chemistry goes beyond just selling products. Our efforts have been rewarded. The ISO 9001, ISO and OHSAS certifi cation awarded for innovation, purchasing, operations, marketing and distribution of are only the fi rst steps on the road to fulfi lling our ambitions - to meet customers request for competitive, environmentally sound, and profi table products today and tomorrow. is a registered trademark in many countries.

3 AkzoNobel Performance Additives 3 Experience the difference Reliable rheology solutions for paint and coatings makes a difference with reliable rheology We at AkzoNobel have been serving the paint Industry around the world for more than 50 years with our brand, a range of non-ionic cellulose ethers. is used as a rheology modifier, stabilizer and water retaining agent for waterbased decorative paints. cellulose ethers are manufactured by a unique, solvent-free process, ensuring our customers a low carbon footprint. They are available in all required viscosities and a range of modifications to ensure we meet every customers needs. Rheology of coatings Rheology is the science of deformation and flow of materials. Every material is influenced by external forces. For paint, these forces can range from gravitational forces, which influence phenomena such as sedimentation, leveling and sagging, to the very high shear forces that act on the paint when it is brushed, rolled or sprayed. Viscosity is a measure of a material s resistance to flow. cellulose ethers are manufactured by a unique, solvent-free process, ensuring you a reliable product with a low carbon footprint.

4 4 AkzoNobel Performance Additives Our products We know that a high application viscosity is essential for good film build and hiding power. That s why our Prime contributes to the medium and high shear viscosity to a much greater extent than regular cellulose ethers. Prime Prime has been developed as the next generation of cellulose ethers. It can be used in all types of latex paints ranging from low to high PVC. This new product is suitable for all types of interior and exterior paints and the advantages are most apparent in flat to semigloss finishes. Performance advantages Advanced color compatibility and rheology control to enhance touch up properties Optimal rheology profile Versatile Superior color stability and excellent color development Excellent color stability is achieved with Prime within a wide range of colorants and latex binders. Prime is designed with particular attention to color acceptance and color development and offers reliable color performance. (This means that the color appears in a uniform homogenous manner and at the expected color strength. Color acceptance is related to the compatibility, distribution and stability of the colorant in the base paint). Efficient thickening and good stability at low addition rate Paints formulated with Prime show very stable and constant viscosity even when stored at elevated temperatures and are very versatile with respect to compatibility with different kinds of binders.

5 AkzoNobel Performance Additives 5 Superior color stability and excellent color development Good color acceptance Poor color acceptance Color acceptance, violet 3% typical dispersing agents de(00) Prime Cellulosic thickener 2 Cellulosic thickener Salt of acrylic polymer Sodium hexameta phosphate Salt of hydrophobic copolymer Salt of carboxylic acid polymer Flat paint formulation Prime was tested in a system known to be sensitive with respect to color acceptance. The tinters used were of different color shades that are known to be problematic. A range of different dispersant were tested. Optimal rheology profile Prime is less shear thinning than Standard. With a comparable viscosity in paint Prime has lower Brookfield viscosity in water solution. Comparable grades in paint Viscosity in water solution (Pa.s) Viscosity water Prime EBS Prime Brookfield viscosity Prime Prime Standard Prime In can viscosity Application viscosity Shear rate (1/s)

6 6 AkzoNobel Performance Additives It s a matter of spatter EHM Performance advantages Spatter resistance Combines advantages of cellulose ethers with rheological properties of synthetic associative thickeners Low spatter * 0.5* 0.48* * = Dosage Good leveling Enhanced brushing viscosity EHM is a non-ionic associative cellulose-based polymer with enhanced enzymatic resistance. We developed it in order to improve the rheological properties in latex paints * 0.4* 0.3* EHM combines the performance of low viscosity cellulose with high thickening efficiency * 1 0 HM-HEC 1 HM-HEC 2 EHM Extra EHM 200 EHM 300 EHM 500 Standard CE Below, from left to right: Spatter from: EHM Extra EHM 200 EHM 300 EHM 500 Standard

7 AkzoNobel Performance Additives 7 The EHM molecule contains hydrophobic groups, which can associate with hydrophobic surfaces within the paint. Filler Surfactant Pigment Latex/ binder EHM Extra EHM Extra is specially developed to meet the demand for high-quality paint and next generation cellulose derivatives. It maintains all of the advantages of existing hydrophobically modifi ed products, while boosting additional properties such as higher application (ICI) viscosity, color acceptance, reduced color fl oat and enhanced storage stability. Performance advantages Excellent application properties for outstanding coverage and fi lm build Superior storage stability with minimal syneresis Extremely good application properties, such as spatter and sag resistance Application (ICI) viscosity ICI viscosity (P) Vinyl acrylic binder Vinyl acetate/ethylene binder Paint rheology, higher ICI viscosity With equal dosage and Stormer viscosity (KU), EHM Extra achieves higher ICI viscosity than competitor products demonstrating the robust and reproducible thickening character of our product. The higher ICI viscosity contributes to an improved fi lm build and thus better coverage EHM Extra EHM 200 HM-HEC HEC EHM Extra EHM 200 HM-HEC HEC Hiding power EHM Extra EHM 500 EBS 481 FQ

8 8 AkzoNobel Performance Additives Standard, widely accepted Standard Open time Performance advantages CE generally versus synthetics Water retention - helps to retain the water within the paint film and also to delay it from penetrating into the substrate or evaporating. This gives an increased open time. Contribute to dispersion by improving flow during grinding Contribute to stabilization (prevent flocculation) of pigments Robust/Stable viscosity and creamy texture Natural renewable polymer with chief component wood pulp or cotton linters When choosing the viscosity type of you should consider its influences on a number of properties in the paint. Storage stability (50 C, 2 weeks) Synthetic thickener Leveling, hiding power and spatter will be better when using medium and low viscosity grades due to their more Newtonian character. On the other hand the higher viscosity grades offer improved cost efficiency and water resistance because of lower addition levels. Performance advantages Low viscous Maximum open time/water retention Color floating (50 C, 2 weeks) Synthetic thickener Leveling High application (ICI) viscosity Performance advantages High viscous Efficiency Texture Economic

9 AkzoNobel Performance Additives 9 Renewable and reliable products for demanding situations EBM High viscosity products with enhanced stability. Suitable for paint and building applications. Enzyme resistance Retained viscosity in % Performance advantages High viscosity grades hence highly efficient Outstanding enzyme stability Especially appreciated in high PVC formulations like joint compounds, distempers and putties because of good compatibility with fillers Low foaming with excellent storage stability and color acceptance EBM Prime, EBS Biostable HEC Regular HEC MHPC

10 10 AkzoNobel Performance Additives Causes and cures

11 AkzoNobel Performance Additives 11 Latex paint problems related to Problem Cause Cure Manufacturing Lump formation during dissolving of Too slow dissolving Too fast dissolving Foam development during grinding Wrong type of used ph of water too high ph of solution too high Neutral or acid water Temperature too low ph too high Hard water / high ph Temperature too high Surface active products (, surfactants, pigment dispersant) Use only paint grades Add acetic acid Add directly after adding water then add alkaline ingredients, e.g. pigment dispersant Increase ph Decrease ph Add the right foam suppressor before and other surface active products Final viscosity too low Inadequate amount of Post addition of slurry of or polyurethane thickener Final viscosity too high Incorrect amount or type of Use lower addition level Use lower viscosity grade Application Spatter from roller Too elastic thickener Use low viscosity grade or EHM grade Use polyurethane thickener in combination with Brush resistance too low Low application viscosity Use low viscosity grade or EHM grade Poor open time Insufficient water retention Increase addition level Add glycol Poor hiding power Low application viscosity Use low viscosity grade or use EHM grade Dried film Poor gloss Cellulose ethers not suitable in high gloss paths Use polyurethane thickener Poor leveling Rheological character of the paint Use low viscosity grade or EHM grade Use polyurethane thickener in combination with Inadequate wet scrub resistance Water sensitivity of film Reduce surface active ingredients Storage Drop in viscosity Increase in viscosity Enzymatic degradation Bacterial contamination Insufficient amount of dispersant Interaction / Latex Use enzyme stable grades Clean production equipment Change bactericide Increase pigment dispersant Use non-ionic surfactants Use new generation Separation Low shear viscosity too low Increase addition or use higher viscosity grade Syneresis Insufficient colloidal stabilization Add non-ionic surfactants Use new generation

12 12 AkzoNobel Performance Additives Incorporating The method of choice for incorporating cellulose ethers is yours Cellulose ethers can be incorporated into the paint in different ways and at several stages during the manufacturing process. We recommend the following three main addition methods to be considered: as a dry powder ( batch in one ), as a slurry, and as a stock solution. All three methods have their pros and cons. Your choice of method will mainly be dependent upon the type of equipment and process you use. As a dry powder paint grades can be added as a dry powder directly to the batch of water in the pigment grind. When added, the water should be neutral or slightly acid. Alkaline ingredients are added after thorough dispersion of the cellulose ether. We have seen that with this method, the dispersion power of is utilized during the subsequent grinding. As a slurry Slurries containing up to 15 20% are readily made by dispersing a paint grade either in water or in a suitable organic solvent. Such slurries are generally usable within half an hour after preparation. When working with aqueous slurries of paint grades, the ph must be 7 or less. As a stock solution Stock solutions are made by adding powder to water and stirring until the thickener is dissolved. We recommend a concentration of 2 5% depending on the type. When using a paint grade, the water should be neutral or slightly acid. If it is alkaline when adding paint, the thickener will dissolve too quickly, forming an insoluble gel instead of a solution. If you re planning to store stock solutions for a prolonged length of time, we recommend that stock solutions should be protected from micro-organisms by using a suitable preservative. paint grade, influence of ph at 20 C. paint grade, influence of temperature at ph 7. Relative viscosity in % Dessolving time, minutes ph 10 ph 8 ph Time, minutes Temperature C

13 AkzoNobel Performance Additives 13 We will make sure you will get the high quality you deserve.

14 14 AkzoNobel Performance Additives About us Performance Additives is one of the businesses within the global company AkzoNobel. We have a unique technology base and experience of cellulose derivatives, with more than 50 years of development, manufacturing and sales of these products. Today, we serve our customers in more than 80 countries.

15 AkzoNobel Performance Additives 15 A dedicated unit with multinational resources The combination of a multinational group s large resources and a dedicated unit s focus on its customers gives us a unique position. Our research and product development has always been guided by our customers and their requirements. We strive to be the mostreliable and dedicated supplier of cellulose ethers to the water borne paint industry. Looking closer, seeing further At AkzoNobel, we believe the future belongs to those smart enough to challenge it. We believe that real progress belongs to those who not only think with courage, but also have the courage to deliver on the thought. What drives us is knowing that what is good for our customers today is not necessarily good enough for them tomorrow. What excites us is asking the unasked question. What inspires us is seeing the opportunity others cannot. What unites us is the intelligence to deliver where others have not. This benefi ts our customers because we sustain their future competitiveness and meet the consumers unspoken needs. Innovation & Sustainability More value from fewer resources At AkzoNobel innovation starts with understanding what our customers need. Our commitment is to do that better and quicker than our competitors. That means understanding and anticipating how our world and our customers lives and expectations are changing. Of course sustainability is integral to everything we do at AkzoNobel. Nowhere is that more obvious than in our innovations. The world needs sustainable solutions. That is why most of our innovation work is driven by sustainability and the ultimate goal is to deliver more value, with fewer resources. locations Headquarter Sempach- Station, Switzerland Research and development Stenungsund, Sweden Business and service centers Brewster, USA Singapore Stenungsund, Sweden Production site Örnsköldsvik, Sweden Ningbo, The Republic of China

16 Europe/Middle East/Africa Akzo Nobel Functional Chemicals AB Performance Additives SE Stenungsund SWEDEN T E bermocoll@akzonobel.com Americas Akzo Nobel Functional Chemicals, LLC Performance Additives 281 Fields Lane, Brewster, NY USA T E CustomerService.CSUS@akzonobel.com Asia Akzo Nobel Asia Pte Ltd AkzoNobel House 3 Changi Business Park Vista, #05-01 Singapore T W AkzoNobel is a leading global paints and coatings company and a major producer of specialty chemicals. Calling on centuries of expertise, we supply industries and consumers worldwide with innovative products and sustainable technologies designed to meet the growing demands of our fast-changing planet. Headquartered in Amsterdam, the Netherlands, we have approximately 48,000 people in around 80 countries, while our portfolio includes wellknown brands such as Dulux, Sikkens, International and Eka. Consistently ranked as one of the leaders in the area of sustainability, we are committed to making life more liveable and our cities more human Akzo Nobel N.V. All rights reserved. AN_201046_031014