METHOD OF PREPARATION OF HYDROPHILIC SILICONES BY RADIOCHEMICAL GRAFTING

• US 3,700,573 A
• Filed: 11/20/1969
• Issued: 10/24/1972
• Est. Priority Date: 12/01/1966
• Status: Expired due to Term

• Current Assignee: Jacques Laizier, Wajs Georges
• Original Assignee: Jacques Laizier, Wajs Georges
• Inventors: LAIZIER JACQUES, WAJS GEORGES
• Application Number:
  US04/871,704
• Time in Patent Office: 1,069 Days
• US Class Current: 522/99
• CPC Class Codes: C08F 283/12 on to polysiloxanes
• CPC Class Codes: C08F 283/124 on to polysiloxanes having carbon-to-carbon double bonds
• CPC Class Codes: C08J 2383/04 Polysiloxanes
• CPC Class Codes: C08J 7/18 using wave energy or particle radiation
• CPC Class Codes: Y10S 522/911 Specified treatment involving megarad or less

Abstract

IN A METHOD OF PREPARATION OF HYDROPHILIC SILICONES BY RADIOCHEMICAL GRAFTING, A COMPOUND OF THE SILICONE FAMILY IS FIRST EXPOSED TO IONIZING RADIATION IN AN OXIDIZING MEDIUM. THE IRRADIATED BODY IS THEN PUT IN THE PRESENCE OF A MONOMER AT A TEMPERATURE WITHIN THE RANGE OF 120 TO 168*C. AND THUS ENDOWED WITH AN ABSORPTIVE CAPACITY FOR WATER.

Claims