Henkel Kommanditgesellschaft Auf Aktien

Cooperatieve Verkoop-en Productievereniging Van Aardappelmeel En Derivaten Avebe B.a.

Cooperatieve Verkoop-en Productievereniging Van Aardappelmeel En

Cooperatieve Verkoop-en Productievereniging Ran Aardappelmeel En

Jacobus Guns

Pieter Lykle Buwalda

Werner Haller

Juergen Wegner

Wolfgang Dierichs

Johannes J Jansen

Anthony Capelle

Ido P Bleeker

Willem Kamminga

Jacques Lacroix

Johannes W Gielen

The invention relates to the dehairing (depilating) of animal pelts, hides or skins, more specifically to depilatory paint and depilatory paint (depilation paint) thickener used in the depilation process in for example fellmongeries. The invention provides a depilatory paint thickener comprising a starch containing essentially only amylopectin molecules. Such thickener, is among other things, easily soluble in cold water; improves diffusion of chemicals (like sulfide or lime) throughout the skin; improves viscosity or resistance to shear of a paint, whereby less starch is needed to exert a similar effect; and increases the suspendability of a lime, allowing less time to be used which creates environmental advantages in waste disposal.

Depilatory paint thickener comprising an anylopectin starch

Dry products in flake or granulate form suitable as a paste base may be obtained by drying a mixture, containing approximately 30 to 80% by weight of water, of from

Process for the production of a dry product suitable as a paste base

A process for the dry etherification of granular starch is disclosed. The process is carried out in the presence of an alkaline catalyst and water, and in the presence of an organic acid in the solid state, which organic acid has a solubility at 25.degree. C. ranging from 0.2 to 5 g in 100 g water. Examples of suitable organic acids are fumaric acid and adipic acid.

Process for making starch ethers

Growing community of inventors

Hoogezand, Netherlands

Jacobus Guns