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Malvern Rheometer Helps Grace Davison Bring New Food-Grade Sealants to Market

Published on 2010-09-22. Author : SpecialChem

Grace Davison Materials and Packaging Technologies, a product group of W. R. Grace and Co, a leading supplier of state-of-the-art closure systems for rigid packaging, uses a rotational rheometer from Malvern Instruments to accelerate the development of new food-grade and industrial sealants. The rheology of the sealants is a critical attribute for the performance of the package, from food and beverage cans through to 55-gallon drums that require a hermetic seal. The Malvern rheometer has proven to be a cost-effective, reliable and easy-to-use choice for steady shear and oscillatory testing throughout the product development cycle.

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"Using the rheometer shortens research times - a major gain," remarks Salvador Crespo, Senior R&D Chemist, Grace Davison. "The bench top Malvern data provides predictive modelling of liquid and dry flow properties, which are used as a screen to advance new developments into the pilot testing stage. We can get very close to an optimal formulation through small scale rheological testing. The rheometer is easy to clean, and it's simple to switch between different test types for wet or dry samples, aqueous or solvent based systems. Malvern has given us great support to optimise our testing procedures. We are developing a broad line of products to satisfy our customers' needs with state-of-the-art research equipment".

Grace Davison uniquely supplies the industry with both solvent- and water-based can sealants. The Malvern equipment provides flexibility to develop products within both technology platforms. Continuous innovation enables Grace Davison to bring new high performance products to market.

The rheometer combines steady shear and oscillatory testing capability with excellent temperature control. Measuring viscosity as a function of shear rate, and of temperature, enables Grace Davison to optimise raw material choice and formulation composition to reach performance targets. Particularly challenging is the development of stable, highly-filled, high-solids dispersions. Here degradation studies and analysis of the visco-elastic response as a function of time provide the information to formulate products that maintain stable performance under simulated commercial handling conditions. www.malvern.com Malvern and Malvern Instruments are registered trademarks of Malvern Instruments Ltd. GRACE® and GRACE DAVISON® are registered trademarks, of W. R. Grace & Co.-Conn.

About Malvern

Malvern Instruments recognizes and supports industry's continuing drive to optimize the products it produces and the processes it employs. The company provides a range of particle analysis and rheological instrumentation that delivers inter-related measurements reflecting the complexities of particulates and disperse systems, nanomaterials and macromolecules. Malvern has a growing portfolio of patented particle analysis technologies, and the company's in-depth industry applications knowledge enables customers to achieve their competitive advantage.

Headquartered in Malvern, UK, Malvern Instruments has subsidiary organizations in all major European markets, North America, China, Korea and Japan, a joint venture in India, a global distributor network and applications laboratories around the world. An area of significant innovation and investment, and one of its most significant resources, is MalvernīŖ¨s dynamic and comprehensive website. This is used to deliver information, interactive education, training and support worldwide, and it provides free access to a wealth of product, technical and applications information.

Source: Malvern


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