Solid polymeric products and their use

C - Chemistry – Metallurgy – 02 – F

Patent

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Details

C02F 1/56 (2006.01) C02F 1/52 (2006.01) C02F 1/54 (2006.01) C02F 1/68 (2006.01) D06P 1/52 (2006.01)

Patent

CA 2159328

Reverse phase polymer particles having a size below 10 µm are provided as a solid product comprising a solid dispersion of the particles in a wax matrix which is solid at 20 ·C and which melts below 250 ·C. The product may be made by dissolving the wax into the organic liquid phase of the product of a reverse phase emulsion polymerisation process followed by distillation of the organic liquid and cooling of the resultant product. The product is generally in particulate form and can be used as a flocculant or viscosifier, especially as a textile print paste thickener.

Des particules polymères à phase inverse, ayant une dimension inférieure à 10 µm, sont formées sous la forme d'un produit solide, lequel est constitué par une dispersion solide de ces particules dans une matrice de cire, solide à 20 ~C et fondant à une température inférieure à 250 ~C. On peut obtenir ce produit en dissolvant la cire dans la phase liquide organique du produit d'une polymérisation d'émulsion en phase inverse, suivie par la distillation du liquide organique et par le refroidissement du produit qui en résulte. Ce produit se présente généralement sous une forme particulaire et il peut être utilisé comme floculant ou comme agent améliorant la viscosité, en particulier comme épaississant pour pâte d'impression pour textiles.

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