Patent ID: 9248091
Filing Date: 2016-02-02
CPC Classification: A61K,A61Q

Claim Text:
1. A method comprising: (A) preparing a suspension base by mixing dry clay and film forming material in a solvent or solvent mixture with a rotor-stator mixing device to deagglomerate the clay to make a clay gel, allowing the resultant clay gel to thicken, and letting the thickened clay gel down in additional solvent, film forming polymer, and plasticizer; (B) preparing a colored suspension base by mixing dry clay and film forming material in a solvent or solvent mixture with a mixing device to deagglomerate the clay to make a clay gel, allowing the resultant clay gel to thicken, and letting the thickened clay gel down in additional solvent, film forming polymer, and plasticizer to make a uncolored suspension base and then mixing pigment paste and the uncolored suspension base with a rotor-stator; (C) shearing a suspension base prepared according to (A) or a colored suspension base prepared according to (B) with a rotor-stator; or (D) preparing a pigment by mixing pigment chips or pigment powder with agglomerated clay, solvent or solvent mixture, film forming polymer, and plasticizer with a rotor-stator to deagglomerate the clay in the mixture of pigment chips or pigment powder, clay, solvent or solvent mixture, film forming plasticizer, and plasticizer.