Curable resins with solid supported antifoaming agents
AssigneeMinnesota Mining and Manufacturing Company
InventorMatthew T. Scholz
Life of this patent
Estimating the term…
Abstract
The present invention relates to novel water curable resins and orthopedic casting material incorporating such resins. The water curable resins contain agents which reduce foaming during cure. The agents are formed of an antifoaming composition sorbed on or encapsulated by a solid support. As the resin cures in water, the support disintegrates thereby activating the antifoaming composition. The antifoaming composition is preferably a polysiloxane.
Claims31
An article comprising:
- a fabric sheet;
- and
- a water-curable resin coated onto said fabric sheet, said resin having an antifoaming agent therein, said antifoaming agent comprising a solid support and an antifoaming composition retained by the solid support, said solid support having the property that it breaks down in water so as to allow contact between the water and the antifoam composition, said antifoaming composition being capable of reducing foaming as said resin cures.
An article comprising:
- a fabric sheet;
- and
- a water-curable resin coated onto said fabric sheet, said resin having an antifoaming agent therein, said antifoaming agent comprising a solid support and an antifoaming composition retained by the solid support, said solid support having the property that it breaks down in water so as to allow contact between the water and the antifoam composition, said antifoaming composition being capable of reducing tack of the resin as said resin cures.
A method of applying an orthopedic casting material comprising a fabric sheet and a water-curable resin, said resin having an antifoaming agent therein, said antifoaming agent comprising a solid support and an antifoaming composition being sorbed on or encapsulated by the solid support, said method comprising contacting said casting material with water to initiate curing of said resin, and applying said casting material to a patient, said solid support having the property that it breaks down in water so as to allow contact between the water and the antifoam composition, said antifoaming composition reducing foaming as said resin cures.
Dependencies are inferred from the claim text.