Novel wax for reducing mar and abrasion in inks and coatings

Details Novel wax for reducing mar and abrasion in inks and coatings Novel wax for reducing mar and abrasion in inks and coatings

C - Chemistry, Metallurgy

09

D

C09D 11/12 (2006.01)

Patent

CA 2542876

Waxes prepared from hydrogenated plant oils, such as castor and soybean, are formulated into aqueous ink and paper coating compositions. Ink compositions comprising these waxes and evaluated for their resistance to mar and abrasion achieved rub resistance and slip performance comparable to compositions utilizing conventional wax additives, which are generally derived from petroleum. The waxes in the inventive compositions have a low iodine value (ranging from approximately 2 to approximately 5), and a melting point between approximately 120 degrees to approximately 190 degrees F (Mettler Drop Point). These naturally derived waxes are used as an alternative to petroleum and synthetically derived waxes in the manufacture of inks and coatings for paper and cellulosic products.

La présente invention concerne des cires préparées à partir d'huiles végétales hydrogénées, telles que de l'huile de châtaigne ou de soja, qui sont préparées dans des encres aqueuses et dans des compositions de revêtement de papier. Des compositions d'encre comprenant ces cires sont évaluées pour leur résistance au défaut de brillance et à l'abrasion atteignent une résistance au frottement et des performances de glissement comparable à des compositions utilisant des additifs de cire conventionnels qui sont généralement dérivés de pétrole. Les cires de ces compositions possèdent un faible indice d'iode (compris entre approximativement 2 et 5) et un point de fusion compris approximativement entre 120 degrés F et 190 degrés F (point de goutte de Mettler). Ces cires dérivées naturellement sont utilisées comme compositions alternatives aux cires dérivées synthétiquement et dérivées du pétrole dans la fabrication d'encres et de revêtements pour papier et de produits cellulosiques.

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