Patent ID: 7816469
Filing Date: 2010-10-19
Classification: C08J,C08L

Abstract:
1. A process comprising: (a) providing a composition comprising a liquid and a polymer dissolved in the liquid, resulting in dissolved polymer molecules in the composition, wherein the dissolution occurs in a dissolution vessel; (b) increasing the solubility of the dissolved polymer molecules in the composition to increase the concentration of dissolved polymer in the composition to a range from about 0.1% to about 30% based on a total weight of the polymer and the liquid, wherein increasing the solubility of the dissolved polymer in the composition occurs in a dissolution vessel; and (c) diluting the dissolved polymer in the composition with a diluent, wherein the dissolution of the dissolved polymer in the composition occurs by addition of the composition to the diluent in a precipitation vessel, wherein: the diluent is pre-chilled such that an internal temperature of the precipitation vessel does not exceed 10° C.; and 75% or less of the total amount of diluent used is added to the dissolution vessel with the remaining amount added to the precipitation vessel.