IP Library Granted Patent US 11,565,494
Granted Patent B2
US 11,565,494 · App. 17/453,201 · Granted Jan 31, 2023

Sustainable industrial hose

Inventors: Lance Miller (Uniontown, OH); Jeffrey T. Epperson (Mount Pleasant, IA); Jenny Zhaoxia Yu (Shanghai, CN); Mathew Augustine (Fairlawn, OH); Jeffrey P. Dotson (Riverside, IA)
Assignee: ContiTech USA, Inc.
B32B1/08B32B5/026B32B7/12B32B25/10B32B25/16F16L11/08B32B2255/02B32B2255/26B32B2270/00B32B2597/00F16L11/081F16L11/085
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Quick Facts
Patent No.
US 11,565,494
App. No.
17/453,201
Granted
Jan 31, 2023
Kind
B2
Abstract

Hoses include an inner tube, a reinforcement layer disposed outwardly from the inner tube, and a cover layer disposed outwardly from the reinforcement layer, where the cover layer and/or the inner tube includes a cured composition having a sustainable content and formed from a mixture including EPDM/EPR sustainable polymer and a sulfur or peroxide based curing system. In some cases, the EPDM/EPR sustainable polymer has ethylene monomer derived from one or more renewable sources, such as, ethylene monomer derived from sugar cane. The mixture may further include one or more of recovered carbon black and sustainable oils from renewable sources. The hose embodiments may also include the reinforcement layer formed of fibers from sustainable material. The hose may contain the sustainable content in an amount of up to 75% by weight based upon total hose weight, or even greater than 25% by weight based upon total hose weight.

Claims (25)

1. A hose comprising an inner tube, a reinforcement layer disposed outwardly from the inner tube, and a cover layer disposed outwardly from the reinforcement layer, wherein the cover layer comprises a cured composition having a sustainable content and formed from a mixture comprising EPDM/EPR sustainable polymer, silica, calcium carbonate, and a sulfur or peroxide based curing system, wherein the EPDM/EPR sustainable polymer comprises ethylene monomer derived from one or more renewable sources, and wherein silica and calcium carbonate are derived from other renewable sources.

2. The hose according to claim 1 , wherein the silica is derived from waste rice husks, and wherein the calcium carbonate is derived from waste eggshells.

3. The hose according to claim 1 , wherein the EPDM/EPR sustainable polymer comprises ethylene monomer derived from sugar cane.

4. The hose according to claim 1 , wherein the mixture further comprises recovered carbon black.

5. The hose according to claim 1 , wherein the mixture further comprises sustainable oils from renewable sources.

6. The hose according to claim 1 , wherein the reinforcement layer comprises fiber from a sustainable material.

7. The hose according to claim 1 , wherein the sustainable content is an amount of up to 95% by weight based upon total hose weight.

8. The hose according to claim 1 , wherein the sustainable content is an amount of greater than 25% by weight based upon total hose weight.

9. The hose according to claim 8 , wherein the sustainable content is an amount of greater than 50% by weight based upon total hose weight.

10. A hose comprising an inner tube, a reinforcement layer disposed outwardly from the inner tube, and a cover layer disposed outwardly from the reinforcement layer, wherein the inner tube comprises a cured composition having a sustainable content and formed from a mixture comprising EPDM/EPR sustainable polymer, silica, calcium carbonate, and a sulfur based curing system, wherein the EPDM/EPR sustainable polymer comprises ethylene monomer derived from one or more renewable sources, and wherein silica and calcium carbonate are derived from other renewable sources.

11. The hose according to claim 10 , wherein the silica is derived from waste rice husks, and wherein the calcium carbonate is derived from waste eggshells.

12. The hose according to claim 10 , wherein the EPDM/EPR sustainable polymer comprises ethylene monomer derived from sugar cane.

13. The hose according to claim 10 , wherein the mixture further comprises recovered carbon black.

14. The hose according to claim 10 , wherein the mixture further comprises sustainable oils from renewable sources.

15. The hose according to claim 10 , wherein the reinforcement layer comprises fiber from a sustainable material.

16. The hose according to claim 10 , wherein the sustainable content is an amount of up to 95% by weight based upon total hose weight.

17. The hose according to claim 10 , wherein the sustainable content is an amount of greater than 25% by weight based upon total hose weight.

18. The hose according to claim 17 , wherein the sustainable content is an amount of greater than 50% by weight based upon total hose weight.

19. The hose according to claim 10 , wherein the cover layer comprises a cured composition formed from a mixture comprising EPDM/EPR sustainable polymer and a sulfur or peroxide based curing system.

20. A hose comprising an inner tube, a reinforcement layer disposed outwardly from the inner tube, and a cover layer disposed outwardly from the reinforcement layer;

wherein the inner tube comprises a cured composition having a first sustainable content and formed from a first mixture comprising EPDM/EPR sustainable polymer, silica, calcium carbonate, and a sulfur or peroxide based curing system, wherein the EPDM/EPR sustainable polymer comprises ethylene monomer derived from one or more renewable sources, and wherein silica and calcium carbonate are derived from other renewable sources;

wherein the cover layer comprises a cured composition having a second sustainable content and formed from a second mixture comprising EPDM/EPR sustainable polymer and a sulfur based curing system;

wherein the first mixture and the second mixture each further comprise recovered carbon black and sustainable oils from renewable sources;

wherein the reinforcement layer comprises fiber from a sustainable material; and,

wherein the combined total of the first sustainable content and second sustainable content is an amount of greater than 50% by weight based upon total hose weight.