Claims
- 1. A method of manufacturing a multi-layer reinforced flexible tubing comprising the following steps:
- (a) providing an inner layer of fluoroplastic; and
- (b) simultaneously wrapping a fabric ribbon layer and extruding a layer of multiphase polymer around said inner layer.
- 2. A method of manufacturing a tubing as claimed in claim 1 wherein said fluoroplastic of said inner layer is selected from a group consisting of polytetrafluoroethylene, perfluoroalkoxy fluorocarbon resin, ethylene tetrafluoroethylene, terpolymers of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride, and polyvinylidene fluoride.
- 3. A method of manufacturing a tubing as claimed in claim 1 wherein said multiphase polymer is selected from a group consisting of polyamide, polyesters and matallocene polyolefins.
- 4. A method of manufacturing a tubing as claimed in claim 1 wherein said multiphase polymer has a hardness in a range of Shore A 50-98 and a tensile strength in a range of 1500-8000 psi.
- 5. A tubing for fluid handling systems comprising:
- an inner layer of a fluoroplastic;
- a reinforcing layer of fabric ribbon wrapped around said inner layer; and
- a cover layer of multiphase polymer.
- 6. A tubing as claimed in claim 5 wherein said fluoroplastic of said inner layer is selected from a group consisting of polytetrafluoroethylene, perfluoroalkoxy fluorocarbon resin, ethylene tetrafluoroethylene, terpolymers of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride, and polyvinylidene fluoride.
- 7. A tubing as claimed in claim 5 wherein said multiphase polymer is comprised of a blend of polymers selected from a group consisting of polyamides, polyesters and matallocene polyolefins.
- 8. A tubing as claimed in claim 5 wherein said multiphase polymer has a hardness in a range of Shore A 50-98 and a tensile strength in a range of 1500-8000 psi.
Parent Case Info
This application is a continuation-in-part of application Ser. No. 08/676,728 filed on Jul. 8, 1996, now U.S. Pat. No. 5,931,201 which is a continuation-in-part of Ser. No. 08/593,068, filed on Jan. 29, 1996 now U.S. Pat. No. 5,934,336.
US Referenced Citations (26)
Foreign Referenced Citations (5)
Number |
Date |
Country |
0551094 |
Jul 1993 |
EPX |
WO 9321466 |
Oct 1993 |
WOX |
WO 9325835 |
Dec 1993 |
WOX |
WO 9409303 |
Apr 1994 |
WOX |
WO 9523036 |
Aug 1995 |
WOX |
Non-Patent Literature Citations (5)
Entry |
"Phase Diagrams of Rubber-Modified Epoxies by Rayleigh-Brillouin Scattering and Thermodynamically Reversible and Irreversible Control on Morphology of Multiphase Systems," 34th International SAMPE Symposium 1989. |
"Phase Separation Mechanism of Rubber-Modified Epoxy," Journal of Materials Science 25 1990. |
"Morphology and Properties Control on Rubber-Epoxy Alloy Systems," Polymer Engineering and Science 1990. |
Henry S. Hsich, "Morphology and Property Control via Phase Separation or Phase Dissolution During Cure in Multiphase Systems," 185-203, published Jan. 1991 in advances in Polymer Technology, vol. 10, No. 3. |
"Thermodynamically Reversible and Irreversible Control on Morphology of Multiphase Systems," Journal of Materials Science 25, Chapman and Hall, Ltd. 1990. |
Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
676728 |
Jul 1996 |
|
Parent |
593068 |
Jan 1996 |
|