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US 6,656,552 B1Granted
Hoses containing copolymer blends
AssigneeDana Corporation
InventorMichael L. Crouse
Life of this patent
Estimating the term…
Abstract
A heat-resistant multi-layer hose is described. The hose includes inner and outer elastomeric layers, and an intermediate reinforcing layer. The inner and outer layers each include a substantial fraction of ethylene-octene copolymer, and may include one or more compatible polymers such as EPDM, chlorosulfonated polyethylene, and chlorinated polyethylene. The use of relatively large amounts of ethylene-octene copolymer results in improved high heat resistance.
Claims19
A hose comprising:
- an inner layer;
- an intermediate reinforcing layer disposed around the inner layer, the intermediate layer comprised of a woven fiber;
- and
- an outer layer disposed around the reinforcing layer;
- the inner and outer layers each comprising a polymer system, the polymer system being cross-linked and comprising from about forty to about one hundred PHR of ethylene-octene copolymer, and from about zero to about sixty PHR of one or more compatible polymers including chlorosulfonated polyethylene, chlorinated polyethylene, or EPDM.
2 more elements
A hose comprising:
- an inner layer;
- an intermediate reinforcing layer disposed around the inner layer, the intermediate layer comprised of a woven fiber;
- and
- an outer layer disposed around the reinforcing layer;
- the inner and outer layers each comprising a polymer system, the polymer system being cross-linked and comprising from about forty to about one hundred PHR of ethylene-octene copolymer, and from about zero to about sixty PHR of one or more compatible polymers including chlorosulfonated polyethylene, chlorinated polyethylene, or EPDM;
- wherein each of the inner and outer layers further includes a solid filler, an extender, a curing and an activator.
3 more elements
A hose comprising:
- an inner layer;
- an intermediate reinforcing layer disposed around the inner layer, the intermediate layer comprised of a woven fiber;
- and
- an outer layer disposed around the reinforcing layer;
- the inner and outer layers each comprising a polymer system, the polymer system being cross-linked and comprising from about forty to about one hundred PHR of ethylene-octene copolymer, and from about zero to about sixty PHR of one or more compatible polymers including chlorosulfonated polyethylene, chlorinated polyethylene, or EPDM;
- wherein each of the inner and outer layers further includes from about ten to about one hundred and fifty PHR of a solid filler, from about thirty to about eighty PHR of an extender, from about four to about ten PHR of a curing agent, and from about three to about fifteen PHR of an activator.
3 more elements
Dependencies are inferred from the claim text.