Cross-linking of polymeric epoxides

• US 3,026,270 A
• Filed: 05/29/1958
• Issued: 03/20/1962
• Est. Priority Date: 05/29/1958
• Status: Expired due to Term

• Current Assignee: Anderson E. Robinson Jr
• Original Assignee: Anderson E. Robinson Jr
• Inventors: Robinson, Anderson E. Jr.
• Application Number:
  US03/738,629
• Time in Patent Office: 1,391 Days
• US Class Current: 525/403
• CPC Class Codes: C08G 65/12 containing organo-metallic compounds or metal hydrides
• CPC Class Codes: C08G 65/24 Epihalohydrins
• CPC Class Codes: C08K 13/02 Organic and inorganic ingredients
• CPC Class Codes: C08K 5/17 Amines; Quaternary ammonium compounds
• CPC Class Codes: C08K 5/39 Thiocarbamic acids; Derivatives thereof, e.g. dithiocarbamates
• CPC Class Codes: C08L 2666/22 Macromolecular compounds not provided for in C08L2666/16 - C08L2666/20
• CPC Class Codes: C08L 71/02 Polyalkylene oxides
• CPC Class Codes: C08L 71/03 Polyepihalohydrins

Claims

1. A CROSS-LINKED POLYMER OF AN EPIHALOHYDRIN WHICH HAS BEEN PREPARED BY HEATING A POLYMER OF AN EPIHALOHYDRIN AT A TEMPERATURE OF FROM ABOUT 250*F. TO ABOUT 340*F. FOR A PERIOD OF FORM ABOUT 250*F. TO ABOUT 5 MINUTES WITH FROM ABOUT 0.5% TO ABOUT 1/% OF ONE OF THE GROUP CONSISTING OF POLYAMINES, HYDROGEN HALIDE SALTS OF POLYAMINES, AND POLYAMINES, HYDROGEN HALIDE POLYMER OF AN EPIHALOHYDRIN BEING PREDOMINATELY AMORPHOUS, HAVING A CRYSTALLINE POLYMER CONTENT OF LESS THAN ABOUT 30%, HAVING A REDUCED SPECIFIC VISCOSITY OF AT LEAST 0.2 AS MEASURED AT 100*C. ON A 0.1% SOLUTION IN A-CHORONAPHTHALENE, ADN SELECTED FROM THE GROUP CONSISTING OF POLY(EPIHALOHYDRIN)S AND COPOLYMERSOF AN EPIHALOHYDRIN WITH AT LEAST ONE OTHER VICINAL MONOEPOXIDE, THE REPEATING EPIHALOHYDRIN UNITS IN SAID POLYMER BEING OF THE FORMULA