JPWO2020214682A5 - - Google Patents

Description

The present invention further provides a non-stick apparatus comprising a pressed laminate having the structural rigidity of at least two laminate layers pressed or molded together under heat and pressure in a forming apparatus, wherein , each of the laminate layers individually comprises a flexible substrate coated with a non-stick coating. The apparatus optionally includes a peripheral raised edge, e.g., a first of the laminate layers includes an edge layer, the edge layer extends around a peripheral edge of a second of the laminates, and/or a second edge layer. Create a central support surface of only 2 laminates.

Claims (23)

A method of forming a non-stick component, the method comprising:
providing at least two laminate layers , each of the at least two laminate layers comprising a flexible substrate coated with a non-stick material;
pressing together at least two laminates under heat and pressure to form a cookware ;
method including . 2. The method of claim 1, further comprising coating the flexible substrate with the non -stick material. 2. The method of claim 1, further comprising the step of superimposing and aligning the at least two laminates on each other for pressing. 2. The method of claim 1, further comprising pressing the at least two laminates to form raised edges. 5. The method of claim 4, wherein a first of said laminate layers includes an edge layer, said edge layer extending around a peripheral edge of a second laminate of laminates to create a support surface for said second laminate only. Method. 2. The method of claim 1, further comprising pressing three separate laminate layers together. each of said laminate layers a first laminate and a second laminate comprising an edge layer, said edge layer extending around a peripheral edge of said third laminate of said laminates to create a support surface for said third laminate only; 7. The method of claim 6. 7. The method of claim 6, further comprising pressing said second laminate between said first laminate and said third laminate. 8. The method of claim 7, wherein said third laminate includes airflow openings and further comprising pressing said third laminate between said first laminate and said second laminate. The heat resistant polymeric material is a fluoropolymer, preferably perfluoroalkoxyalkane (PFA), TFE/perfluoromethyl vinyl ether copolymer (MFA), or fluoroethylene propylene (FEP), homopolymer or copolymer of PTFE, or such. fluoropolymer combination , and
The flexible substrate is a woven fabric formed from fiberglass, Kevlar, Nomex, carbon fiber, quartz fiber, PEEK, PAEK, PPS, PES, PPSU, LCP and/or PAI fibers, or combinations of such fibers or threads. 2. The method of claim 1, comprising a fabric substrate, a nonwoven substrate, an open mesh/leno weave substrate, a braided substrate, and/or a unidirectional fabric. 1. A non-stick apparatus comprising a structurally rigid pressed laminate comprising at least two laminate layers pressed or molded together under heat and pressure in a molding apparatus, each of said laminate layers comprising: An apparatus individually comprising a flexible substrate coated with a non-stick coating. 12. The non-stick device of claim 11, further comprising a raised peripheral edge. 13. The method of claim 12, wherein a first of said laminate layers includes an edge layer, said edge layer extending around a peripheral edge of a second of said laminates to create a support surface for said second laminate only. non-stick device. 14. A non-stick device according to any of claims 11-13, further comprising three separate laminate layers pressed together. Each of said laminate layers a first laminate and a second laminate includes an edge layer extending around a peripheral edge of a third of said laminates to create a support surface for said third laminate only. 15. A non-stick device according to claim 14. 16. The non-stick device of claim 15, wherein said third laminate is pressed over or between said first laminate or said second laminate. 15. The non-stick device of claim 14, wherein said flexible substrate is impregnated with said heat resistant polymeric material. Said heat-resistant polymer material is a fluoropolymer, preferably PTFE, FEP, PFA, MFA®, or ETFE, fluoroelastomer, silicone rubber, silicone resin, urethane rubber, urethane resin, polyketone, polyether, ether, Fluorinated materials such as ketones (PEEK), polyamideimide (PAI), polyphenylene sulfide (PPS), polyphenylsulfone (PPSU), liquid crystal polyester (LCP), polyethersulfone (PES), epoxy, quartz, and fluorinated mica , and combinations thereof. Said flexible substrate is formed from fiberglass, Kevlar, Nomex, carbon fiber, quartz fiber, PEEK, PAEK, PPS, PES, PPSU, LCP, and/or PAI fibers, or combinations of such fibers or threads woven substrates, nonwoven substrates, open mesh/leno cloth substrates, braided substrates, and/or unidirectional fabrics;
15. The non-stick device of claim 14, wherein the non-stick coating applied over the polymeric material is a fluoropolymer or other non-stick material. 15. The non-stick device of claim 14, wherein the device comprises a cookware for holding a food item during cooking including a food-supporting surface including the non-stick coated cooking surface. The cookware may be pressed or molded into baskets, trays, sheets, pans, bowls or cups, plates, covers or other cookware accessories, and each of the cookware and food-supporting surfaces may be entirely metal. 21. A non-stick device according to claim 20, which does not contain a non-stick device. A composite material comprising a flexible substrate impregnated with a heat resistant polymeric material, said composite material having structural rigidity when cured,
The flexible substrate is a woven substrate, a non-woven substrate formed from fiberglass, Kevlar, Nomex, carbon fiber, quartz fiber, PEEK, PAEK, PPS, PES, PPSU, LCP and/or PAI fibers or combinations thereof; comprising open mesh/leno weave substrates, braided substrates and/or unidirectional fabrics;
said heat resistant polymeric material comprises an artificial thermoplastic material, preferably PAI, PPS, PEEK, PPSU, PES or a combination thereof;
further comprising that the non-stick coating, laminated film, or coated fabric applied over the polymeric material is a fluoropolymer or other non-stick material;
Composite material. 23. A composite material according to claim 22, further comprising a plurality of layers each comprising a corresponding flexible substrate impregnated with a corresponding heat resistant polymeric material, preferably comprising at least 10 layers.