Extended polyacrylic acid based binder compositions

C - Chemistry – Metallurgy – 09 – J

Patent

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Details

C09J 133/02 (2006.01) B32B 17/10 (2006.01) C03C 25/28 (2006.01) C03C 25/32 (2006.01) C09J 133/04 (2006.01) D04H 1/64 (2006.01) C08L 97/00 (2006.01)

Patent

CA 2507645

The present invention provides a variety of extended polyacrylic acid based binder compositions comprising a low molecular weight polyacrylic acid (typically hypophosphite or sulfite terminated), a crosslinking agent (such as triethanolamine or glycerol) and one or more water soluble materials, such as lignin, low molecular weight starch and soybean protein. The extended binder composition of the present invention provides a lower cost binder composition without degrading the performance and may be selected to alter one or more characteristics of the basic binder composition such binder wetting, emulsion compatibility, dust suppression and wash water flow properties.

La présente invention concerne une variété de compositions de liant à base d'acide polyacrylique allongé comprenant un acide polyacrylique de faible poids moléculaire (généralement à terminaison hypophosphite ou sulfite), un agent de réticulation (tel que triéthanolamine ou glycérol) et une ou plusieurs matières hydrosolubles, telles que de la lignine, de l'amidon à faible poids moléculaire et une protéine de soja. La composition de liant allongé selon la présente invention permet d'obtenir une composition de liant meilleur marché, sans dégradation de l'efficacité, et peut être choisie pour modifier une ou plusieurs caractéristiques de la composition de liant de base, telles que des propriétés de mouillage de liant, de compatibilité d'émulsion, d'élimination de poussière et d'écoulement d'eau de lavage.

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