×

Synthesis of columnar hydrogel colloidal crystals in water-organic solvent mixture

  • US 7,989,505 B2
  • Filed: 09/21/2006
  • Issued: 08/02/2011
  • Est. Priority Date: 09/23/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of making a colloidal crystal material comprising:

  • (a) mixing an aqueous suspension of polymer matrix microgels with dichloromethane, forming a polymer matrix microgel/dichloromethane mixture; and

    (b) incubating the polymer matrix microgel/dichloromethane mixture for a period of time at a temperature, forming the colloidal crystal material;

    wherein the aqueous suspension of polymer matrix microgels are in a concentration range above about 2.0 wt %.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×