Process for the production of micronized waxes
AssigneeHuels Aktiengesellschaft
InventorAdolf Kuehnle
Life of this patent
Estimating the term…
Abstract
A microwax for use in printing ink and varnish systems is obtained by first spraying a wax melt to obtain a powder comprising substantially spherical particles, and subsequently grinding the powder of spherical particles.
Claims14
A process for the production of a micronized wax powder comprising subjecting a starting material of substantially spherical wax particles, producible by spraying a wax melt, to a grinding step to yield a micronized wax powder wherein at least 95% by weight of the particles of said powder are smaller than 32 .mu.m.
A process for the production of a micronized wax powder comprising the steps of:
- (a) spraying a wax melt to form a fine powder of predominantly spherical particles, wherein at least 60% by weight of the particles are smaller than 96 .mu.m;
- and
- (b) grinding the particles produced by step (a).
A process for the production of a micronized was powder comprising grinding a starting material of substantially spherical wax particles sufficiently to yield a micronized wax powder possessing luster-retaining spherical particle characteristics and easily-dispersible broken particle characteristics, said substantially spherical wax particles being producible by spraying a wax melt, and at least 60% by weight of said substantially spherical wax particles are smaller than 96 .mu.m.
Dependencies are inferred from the claim text.