Abstract: A single membrane insulation material comprising a flexible fluoropolymer coated substrate, an insulating material laminated to one side of said substrate, and an anti-porosity fluid barrier associated with said substrate and shielded by said insulating material from elevated temperatures at said one side. Also disclosed is the inclusion of a a melt bondable fluoropolymer adhesive layer between the flexible fluoropolymer coated substrate and the insulating material.

Abstract: A flexible fluoroplastic laminate comprising a plurality of unsintered oriented PTFE films laminated under conditions of elevated temperature and pressure. At least one of the films has its direction of orientation disposed angularly with respect to that of at least one other of the films. The films retain their orientation following lamination.

Abstract: A single membrane insulation material comprising a flexible fluoropolymer coated substrate, an insulating material laminated to one side of said substrate, and an anti-porosity fluid barrier associated with said substrate and shielded by said insulating material from elevated temperatures at said one side. Also disclosed is the inclusion of a a melt bondable fluoropolymer adhesive layer between the flexible fluoropolymer coated substrate and the insulating material.

Abstract: Fluoropolymer containing coatings are applied to substrates, preferably textile substrates, to obtain composites which are flexible and not brittle, and which exhibit a low coefficient of friction, good wear resistance and excellent release properties. This invention comprises the technique of initially coating a flexible substrate, such as glass fabric or a metal mesh, with a fluoropolymer, which serves to prevent cracking upon flexing. The precoated substrate is thereafter coated with a blend of a hard polymer and a fluoropolymer which adheres well to the pre-coated intermediate substrate. Significantly, the composites of the invention are flexible, yet possess the wear resistance of the hard polymer component as well as the frictional and release characteristics of the fluoropolymer components.

Abstract: Fluoropolymer containing coatings are applied to substrates, preferably textile substrates, to obtain composites which are flexible and not brittle, and which exhibit a low coefficient of friction, good wear resistance and excellent release properties. This invention comprises the technique of initially coating a flexible substrate, such as glass fabric or a metal mesh, with a fluoropolymer, which serves to prevent cracking upon flexing. The precoated substrate is thereafter coated with a blend of a hard polymer and a fluoropolymer which adheres well to the pre-coated intermediate substrate. Significantly, the composites of the invention are flexible, yet possess the wear resistance of the hard polymer component as well as the frictional and release characteristics of the fluoropolymer components.