Conference Program

Conference Program

Paintindia Conference 2022 Schedule
26 May 2022
Jio World Convention Centre Mumbai, India

11.00 – 11.40 hrs Registration and networking high-tea
11.40 – 11.50 hrs Welcome note
11.50 – 12.00 hrs Lamp-lighting by industrial dignitaries
12.00 - 12.30 hrs

New developments in binders and materials

Synthesis of NIPU using glycidyl methacrylate and other acrylic monomers Durgesh Soni, Harcourt Butler Technical University, Kanpur, India

The present work focuses on the synthesis of polyurethanes by using glycidyl methacrylate, methyl methacrylate and butyl acrylate monomers. The simultaneous carbonation of the epoxy groups of glycidyl methacrylate reduced the two step process to a single step. The catalysts for carbonation were LiBr, MePh.I, and AIBN was used as radical polymerization initiator. The solution copolymerization was performed in xylene, butanol, NMP and other solvents under Carbon dioxide atmosphere to fix the CO2 in epoxy group of glycidyl methacrylate. The progress of reaction was tracked by HCl-DMF reaction, %OOC and FTIR & 1H-NMR spectral techniques. The disappearance of epoxy peak at 909 cm-1 and appearance of cyclic carbonate peak at 1800 cm-1 confirmed the carbonation reactions. The polymer solution was then cured with several primary diamines like ethylene diamine, reactive polyamide resin etc. After curing the development of urethane linkage was confirmed by FTIR spectrum. The tests of dried films showed good adhesion, flexibility and chemical resistance properties. The method thus provides an alternate route for the synthesis of polyurethanes without using the toxic isocyanates.

11.00 – 11.40 hrs Registration and networking high-tea
12.30 - 13.00 hrs

High di-electric resistance epoxy based powder coating Mayur Bhoite, Kansai Nerolac Paints, India

Our aim is to develop high-dielectric resistance powder coating in pure epoxy high glass transition temperature (Tg) system. Epoxy coating are ideal for electrical applications due to their robust dielectric properties. In this paper to achieve high dielectric resistance coating the key factor is to increase Tg of powder. The key factors contributing to high Tg are increase cure time, Increase cure temperature, Increase A/E ratio and use type 3-4 Epoxy equivalent weight (EEW) resin this will allow optimizing Tg and dielectric resistance property along with overall performance. Further by using the type 3-4 EEW resin and specific extenders & anhydride based curing agent which are an effective thermal curative for epoxy powder coatings which offers enhanced heat and chemical resistance, mechanical and high dielectric properties.

13.00 - 13.30 hrs

Water-based epoxy technologies for metal coating applications Dr. Daniel Suckley, Aditya Birla Advanced Materials, India

Epoxy resins are well known as high performance materials in various construction and metal coating applications, providing the combined properties of chemical resistance, adhesion, corrosion resistance and mechanical strength. They are one of the best materials available when comparing performance against relative cost and this has in turn led to epoxies being the substance of choice for use as flooring materials and for the corrosion protection of metal. They are often supplied as a two component system comprising a resin and a curing agent. Increasing environmental concerns worldwide has led industries to experience a gradual shift towards water-based technologies as limits on emissions, VOC content and safety rulings become more prevalent across the world. Epoxy resins by their very nature are fundamentally incompatible with water and careful design of the molecule be it a curing agent or epoxy resin is crucial to deliver the products in aqueous media but when fully cured give the same high performance as conventional epoxy based materials. This careful design often leads to performance that exceeds that of conventional technologies which this paper intends to describe in detail. High molecular weight resins can be supplied at low easy-to-use viscosities giving performance advantages such as fast drying times and long pot lives. Curing agents were designed with low amine contents through careful adjustments to their chemical structure giving a perfect balance between water miscibility and further compatibility with epoxy resins. The waterbased resin and hardener system is further formulated in a 2 –pack corrosion protection coating that give high performance even when applied at relatively low dry film thickness. The resin and curing agent combination whilst not providing an end of pot life indication, can still be applied up to three hours after the initial mixing as a clear coating and up to four hours as a fully formulated coating without the loss in performance. The system can be formulated with intermediate Pigment Volume Contents in the range 30 – 35 % to give high corrosion resistance even at low coating thickness. Early humidity resistance data for the waterbased coatings are presented after forced-heat drying of the paint has been applied, thus illustrating their suitability for use in industrial manufacturing. When the coating is fully cured, salt spray resistance in excess of 1200 hours is achievable without any detrimental effect to the coating or significant loss of performance.

13.30 - 14.00 hrs

How a novel catalyst technology can improve alkyd coatings performance Allison Musto, Milliken, Germany

The preOxidatively cured coatings, such as alkyds and oil-based paints, need catalysts to increase the reaction rate and facilitate faster drying times. However, catalysts can affect much more than just drying. Catalyst choice can positively or negatively impact critical properties such as durability, weatherability, and color stability. This presentation will introduce Borchers’ novel catalyst technology specifically focusing on how paint performance is improved compared to current technologies in the market. The data showcased will highlight the effect catalysts have on resistance to corrosion, UV stability, and other challenges formulators encounter. The presentation will also cover how Borchers’ novel catalyst technology can improve the common issue in alkyds of color instability in clear and white topcoat formulations. These benefits can be achieved while supporting the industry’s initiative to formulate safer coatings by improving the GHS labelling of the paint and lowering VOC emissions. Data will be provided across multiple market segments such as decorative trim and industrial DTM coatings.

14.00 - 14.45 hrs

Lunch Break

14.45 - 15.15 hrs

New developments in wetting and dispersing additives Adesh Malkar, BYK India Pvt Ltd

The main ingredients of coatings or inks are resin/s, pigment/s and solvent/s, but most formulations also contain some additives. Additives are used to avoid defects (e.g., foam bubbles, poor levelling, flocculation, sedimentation, …) or to provide special properties (improved surfaceslip, UV stability, etc), which cannot easily be achieved by other coating raw materials. Additives are “problem solvers” and selecting the right additives is an important step during the development of a new coating formulation. Technology has evolved a lot not only with new resin chemistries but also with newer pigment surfaces. For additives to be effective, a durable and permanent adsorption onto the pigment surface is of utmost importance. Keeping these factors into mind, demand for more versatile wetting and dispersing additive is also increasing which can be used in the full spectrum of coatings – from aqueous coatings and printing inks to solvent-borne and solvent-free systems, as well as UV systems.

15.15 - 15.45 hrs

Architectural coatings

Novel isocyanate-free 1&2K moisture-cure technology as alternative to 2KPU Christophe Steinbrecher, Hexion Research Belgium, Belgium

Acrylic- and epoxy-alkoxysiloxanes are increasingly used in moisture-curing isocyanate-free resins for marine and protective applications. These resins are valuable alternatives to 2KPU due to their broad range of performances and their benefit to cope with recent environmental trends. Their market penetration, however, has been limited so far due to an unfavorable cost/performance ratio. A new family of polymers based on the combination of vinyl (neo)ester and vinyl alkoxysilane monomers is presented in this paper. These polymers, with solid content between 70 to 100%, offer attractive properties by varying process parameters, monomers composition and alkoxysilane levels, as well as an attractive cost level. This new versatile binder technology was tested in 1- and 2K moisture-cure coatings with standard catalysts. The tests demonstrate that high solids content, fast drying development and long shelf life can be combined in a cost-efficient and isocyanate-free solution. The performances of these vinyl silane copolymers enable the development of a new range of valuable alternatives to 2KPU and acrylic-alkoxysiloxanes for many applications, especially in protective coatings.

15.45 - 16.15 hrs

Pigment dispersion-an important step for paint manufacturing Dr. Srikrushna Patnaik, Jesons Industries, India

The consumer of architectural paint has started demanding better and better quality of paint with different shades to match the surroundings and aesthetic of their home. The paint company has accepted the aspiration of the customer by offering a large number of shades. This is possible due to the advancement in tinter & tinting systems and dispensing through the computer control process. But the challenge is the reproducibility of the shade of paint. Here the wetting agent and dispersing agent play an important role to achieve this. The wetting agent and dispersing agent are not the same and have a different roles to play. The wetting agent works on a solid-air interface and removes air so that liquid can enter and wet the surface. Basically, it reduces the surface tension so that liquid can enter and is the first step towards the dispersion process. Pigment aggregate is then broken down into primary particles due to the application of energy in form of grinding. This is the second step towards the pigment dispersion process. The smaller particles thus obtained have to be stabilized, otherwise, they will again go back to their partial original shape as solid particles attract each other. Here the dispersing agent role starts and keeps the primary particles apart due to either electrostatic force and steric hindrance hence giving long-term stable low viscosity product as required for a paint. This is the third step for pigment dispersion. This article explains the role of dispersing agent for pigment dispersion to impart colour strength, gloss, long-term viscosity stability, and no settling of particles due to de- flocculation of primary particles without going to the equipment required for breaking down aggregates/agglomerate to primary size.

16.15 - 16.45 hrs

Advanced urethane associative thickeners for water-borne coatings Dr. Chitra Jeurkar, Elementis, USA

The appearance and quality paints are dependent on the selection of a rheology modifier. Poorly selected rheology modifier impact spattering, hiding, stain resistance and other related performance properties. Thickeners based on Urethane chemistry are known to provide the best overall viscosity control while delivering desirable paint performance. Current trends are to formulate a paint with a rheology modifier that gives minimal viscosity contribution in the low and mid shear regions but good viscosity contribution in the high shear region without affecting the paint performance. Recent advances in the non ionic urethane rheology modifiers have addressed the needs by developing an unique polymer with a careful balance of hydrophobic and hydrophilic components to achieve the high shear viscosity with minimal viscosity in the low and mid shear regions. This presentation will show how Advanced Urethane Thickener technology will allow architectural waterborne coatings to have a high viscosity in the high shear region and low viscosity in the low and mid shear regions. The new thickener provides coatings with superior application and dried film performance properties.

16.45 - 17.15 hrs

Wax emulsion for coating and construction application Dr. Harish Agrawal, Karo Chem, India

A wax emulsion is a stable mixture of one or more waxes in water. Waxes and water are normally immiscible but can be brought together stably by the use of surfactants and a clever preparation process. Strictly speaking a wax emulsion should be called a wax dispersion since the wax is solid at room temperature. However, because the preparation takes place above the melting point of the wax, the actual process is called emulsification, hence the name wax emulsion. Wax Emulsions or Wax dispersions are widely used for optimizing the final performance of coating & inks by efficiently controlling surface properties, even if used in relatively small quantities.

17.15 - 17.45 hrs

Poster session/tea break

17.45 - 18.15 hrs

Smart coatings

Piezoelectric paint: Innovation in stimuli responsive smart coating domain Kabir Baidya, Indian Institute of Engineering Science and Technology, Shibpur, India

The presenModern trend in paint formulation technology is to control the composition on molecular level & morphology at nano-meter scale for introduction of novel properties. Smart coatings are composite systems which can dynamically adapt to the exposed environment and provide appropriate response to an external stimulus. Piezoelectric smart coatings by means of sensor application & energy harvesting are capable of revolutionizing the concept of smart living spaces. Energy harvesting from coating systems by direct piezoelectric effect coverts mechanical stimuli to an output of electrical impulse which has broader scope of application on horizontal coatings (floor coating, road marking etc.) due to higher degree of footfall & transport. Sensor application of piezoelectric coatings can be directed for nondestructive structural health monitoring of the coated substrate. In this review due focus is given on the current studies going on in piezoelectric paint & composite coatings for energy harvesting and sensor application introducing add on sustainable energy scavenging property to the overall system. Existing issues related to large scale scaling up & application has been touched on briefly.

18.15 - 18.45 hrs

Bio-mimicry: Current & future trends & its application as coating system Somnath Sarkar, Shalimar Paints, India

Nature has always been a great teacher, scientists have derived many ideas from nature to make human lives better. One of such most studied idea is Bio-mimicry. It is a way to incorporate the inspirations, learned from natural activities, in accordance with human needs. One of the best examples of it is self-cleaning nature of lotus leaves which basically works on super hydrophobicity. Researchers have also tried to recreate the process of CO2 uptake and release oxygen by introducing live algae into the coating system. Another example is the adhesive that imitates the mechanism that helps geckos and mussels to cling to the surface of different objects. Scientists have tried to replicate the intricate structure of wings of owl which allows it to catch its prey without making any sound that can be used to reduce the noise made by the wings of wind turbine. To tackle bio-fouling, scientists have tried to replicate smooth skin of the shark using (PDMS)-embedded elastomeric stamping method for marine structures. This review paper gives an overview on the works that have been done to incorporate bio-mimetic technology into daily lives.

18.45 - 19.15 hrs

Sustainable coatings

A green approach towards coating industries Dr. Kunal Yeole, Kansai Nerolac Paints, India

The climate continues to change, population continues to grow and the natural resources continue to reduce, paint and polymer industry have seen a global shift towards green designs and sustainable commerce practices. Green approach includes minimum carbon footprint, renewable energy sources, water-based systems, reduce energy use, etc. The industry sectors are already pulling their weight in the area of energy efficiency and innovation, recognizing environmental performance alongside health, safety and security. The coating industry uses materials has targeted the idea of dematerialization, converting the linear path of materials to a circular material flow that reuses materials as much as possible like cycling and reuse of waste in nature. This paper discusses the market for sustainable products and diverse utilization in the coatings industries, the use of renewable resources in formation of various types of coatings, reduction in carbon footprint, energy efficient processes.

19.15 – 20.15 hrs

Networking reception / Poster session





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