F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 9/14 (2006.01) F16L 11/04 (2006.01) F16L 11/12 (2006.01)
Patent
CA 2408151
A thermoplastic tube for transfer of hydrocarbon fuel comprising an inner fluoroplastic layer (12) and an outer polyamide layer (14) bonded to the fluoroplastic layer wherein an adhesion promoter (16) is included in at least one of the layers is disclosed. The adhesion promoter is an unsubstituted or substituted phenol salt of 1,8-diazabicyclo-[5,4,0]undec-7-ene on a novolac carrier which functions to increase the adhesive bond strength between the two layers (12, 14). The adhesion promoter (16) provides a chemically bonded adhesion in addition to the mechanical adhesion associated with extrusion or lamination of the layers.
L'invention concerne un tube thermoplastique pour le transfert de combustible hydrocarboné, comprenant une couche intérieure de plastique fluoré (12) et une couche extérieure de polyamide (14) liée à la couche de plastique fluoré, un promoteur d'adhésion (16) étant inclus dans au moins une des couches. Ledit promoteur d'adhésion est un sel phénolique substitué ou non de 1,8-diazabicyclo-[5, 4, 0]undec-7-ène sur un support en novolac, qui augmente la résistance d'adhésion entre les deux couches (12, 14). Ledit promoteur d'adhésion (16) confère une adhésion chimique outre l'adhésion chimique associée à l'extrusion ou au contre-collage des couches.
Borden Ladner Gervais Llp
Dayco Products Llc
Fluid Routing Solutions Inc.
LandOfFree
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