EOC BELGIUM - LATEX DIVISION I & II
EOC Belgium - Latex Division mainly produce styrene-butadiene latices as well as vinylidene chloride-butadiene-styrene and acrylonitrile-styrene-butadiene latices. These latices are used in the carpet, textile, paper, board and building industries. The latices supplied suffice with regard to the strictest European environmental regulations and work usually takes place with PCP- and formaldehyde-free systems. Only when technically necessary and with the agreement of the customer a formaldehyde containing product is used. Also, the quantity of free monomers is extremely low due to the stringent follow-up of polymerisation and post-treatment processes. Obviously the latices also meet the standards of the GuT (Gemeinschaft umweltfreundlicher Teppichboden) and the EPDLA (European Polymer Dispersion and Latex Association).
Carpet and textile latex
For the carpet and textile industries the production units themselves develop a large number of latices with exceptional qualities regarding bonding strength, adhesion, resistance against ageing, water-resistance, fire-retardation, antistatic properties, etc.
The clients products have their own specific requirements that cannot be brought under one common denominator. This is why both pilot reactors are used to subject the new latex to the strictest possible quality control before they leave the factory. An abundance of latices is the result, but thanks to the extensive production and storage facilities each order is delivered within the agreed period to wherever in the world.
Paper and board latex
Over the last decade EOC Belgium - Latex Division has developed itself to become a permanent and reliable partner for the high technology market of paper and board producers. This is also the most important market for styrene-butadiene latices. A number of years after the launch, a permanent place has been established among the recognised latex producers for the paper and board market. Each year has seen a rise in the number of clients and a considerable increase in turnover. To constantly create new, innovative latices to improve the ultimate paper and board quality, the development department intensified its efforts. A large laboratory with the latest analysis techniques and equipment is of essential importance here. Furthermore, the access to various external pilot installations allows semi-industrial evaluations.
Latices are developed in close co-operation with producers of coated paper and/or board. Here it is particularly the offset quality that is of great importance. Our staff also develops latices for both wood-free and wood-containing high quality paper, LWC, art paper, label paper, recycled paper, etc. Numerous application techniques can be used here such as blade coaters, roll coaters , air knife, film press, etc.
The research team also works diligently to provide other sectors from the paper and board world with a complete range of products. Obviously the optimising of the latices for the offset market is of a high priority.
Coated needle felt floorcoverings are commonly used in the automotive industry. The products have a complex form and must keep their shape even at higher temperatures. In the production process the needle felt is thermally formed at temperatures that can be borne by the fibres. This requires a very specific processing pattern from the binding agent. It is especially important to determine the selection of the binding agent in close consultation with the user. After all, the production process and the field of application demand special characteristics of these "thermoformable latices".
EOC Belgium - Latex Division has evolved at high speed during the last decade in this demanding and difficult market. This has resulted in today's comprehensive range, supportive expertise, logistical flexibility and a prompt customer service.
After an analysis of the market demand and extensive research, at the start of the 90's chemists from the research departments developed a special XSBR-latex for use in the building industry. It was not long before approval was given from various quarters for this new latex as an additive for cement-based mortars and concrete. Cement latex is used for making cement-based mortars with the immediate effect of significant water reduction. Depending on the quantity of latex used, the total water requirement can be reduced by 20 to 30 %. At the same time, mortars that are much easier to use are obtained.
These polymer mortars have better resistance to the penetration of various liquids and salt and acid solutions. The low porosity is a consequence of the greatly reduced shrinkage during the hydration of the cement, so fewer shrinkage cracks originate. The polymer also fills the micropores in the hardened mortar and therefore greatly reduces liquid transportation. This gives the work a longer life, so cost savings are made.
Typical applications are with the treating of surfaces due for renovation or where a finishing coat is needed. With the restoration of damaged concrete a polymer mortar will give much better adhesion to old substrates. If necessary, corroded concrete reinforcement can be very efficiently treated. These mortars can also be used in covering floors and self-levelling poured floors, in cement plasters for walls or for waterproofing work.
Besides their use in cement-based glues for tiles, these latices are also applied in bitumen-based emulsions that are used as a moisture barrier on foundations or on surfaces on which condensation can form.
The world of non-wovens
Non-wovens have become an essential component of everyday life. They can be found in the most unexpected places, both in industry and in the home - particularly to improve comfort and hygiene.
The styrene-butadiene latices are ever-increasingly becoming the common binding agents and the EOC Belgium - latices are becoming more and more popular. They have already been used for many years for the manufacture of very specific articles for the automotive sector, filters, shoe insoles, etc. They are also being increasingly favoured where extremely demanding requirements are made regarding skin contact.
An important use of the EOC Belgium - latices can be found in the care and hygiene sector. Market leaders have approved the EOC Latex division-latices for their applications. Together with industrial partners new markets for the use of polymers are constantly being sought.