Composite and method for making
AssigneeSaint-Gobain Performance Plastics Corporation
InventorsJoseph G. SARGENT, Gerald T. Buss, Michael P. Cushman, Timothy P. Pollock, Helen K. Bergstrom
Life of this patent
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Abstract
A composite includes a first layer of a first fluoropolymer; a second layer of at least one ply of a reinforcing fabric overlying the first layer; and a third layer of a second fluoropolymer overlying the second layer opposite to the first layer, wherein the first layer, the third layer, or combination thereof have an outer surface that is defect free; wherein the composite has a continuous length of at least about 3 meters. Embodiments of such composites can find applications, for example, as processing aids for an electronic device, a food, a polymer, insulating an electrical device, or heat sealing a polymer.
Claims20
A method of manufacturing a composite, the method comprising:
- providing a stack having a continuous length of at least 3 meters, wherein the stack comprises a first layer of a first fluoropolymer, a second layer of at least one ply of a reinforcing fabric onto the first layer, and a third layer of a second fluoropolymer onto the second layer opposite to the first layer;
- laminating the stack at a pressure of about 0.5 MPa to about 6 MPa simultaneously with heat at a temperature of about 200° C. to about 400° C. through two substantially parallel surfaces for at least 10 seconds to form the composite;
- wherein the composite is free of a void on an outer surface of the first layer and on an outer surface of the third layer.
Dependencies are inferred from the claim text.