Patent ID: 7846996
Filing Date: 2010-12-07
Classification: C08J

Abstract:
1. A method of preparing concentrates containing (1) one or more polymer additives and (2) one or more polymers which comprise repeating units of ethylene, vinyl acetate and optionally one or more other monomers, comprising mixing the polymer additive(s) (1) with a solution of the polymer(s) (2) in a solvent, wherein the polymer additive(s) (1) have a mean primary particle size, “d removing the solvent, wherein the concentrate has a bulk density which is at least 50% greater than that of the polymer additive(s) (1) prior to the mixing with the solution of the polymer(s) (2) wherein the polymer(s) (2) contain 60 to 80% by weight vinyl acetate and 20 to 40% by weight ethylene and optionally one or more further monomers, wherein the sum of all monomers in the polymer(s) (2) still has to give 100% by weight.