MULTILAYER RUBBER HOSE
A hose including an inner tube, a reinforcement layer disposed outwardly from the inner tube, and a cover layer disposed outwardly from the reinforcement layer, in which the hose meets requirements of NSF/ANSI/CAN 61 standard, and in some aspects, at least the inner tube is devoid of nitrosamines. In some cases, the inner tube includes ultra-high molecular weight polyethylene. In some other aspects, the inner tube includes other thermoplastic material. In some cases, the cover layer is based on a rubber material. Also, the hose may contain water within a lumen defined inside the inner walls of the inner tube.
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 at least the inner tube is devoid of nitrosamines and the hose meets requirements of NSF/ANSI/CAN 61 standard.
2 . (canceled)
3 . (canceled)
4 . The hose according to claim 1 , materials forming one or more of the inner tube, the reinforcement layer and/or the cover layer comprise one or more accelerator(s) selected from the group consisting of 2-mercaptobenzothiazole (MBT), 2-2′-Dithiobis(benzothiazole) (MBTS), tetrabenzylthiuram disulfide (TBzTD), N-cyclohexyl-2-benzothiazole sulfenamide (CBS), N-tert-butyl-2-benzothiazole sulfenamide (TBBS), N,N′-dicyclohexyl-2-benzothiazole sulfenamide (DCBS), diphenyl guanidine (DPG), N, N′-diorthotolyl Guanidine (DOTG), zinc dibenzyl dithiocarbamate (ZBEC), N, N-captolactam disulfide (DTDC), ethylene thiourea (ETU), diethylene thiourea (DETU), diphenyl thiourea (DPTU), di-n-butyl thiourea (DBTU), zinc-O—,O-di-N-butylphosporodithioate (ZBPD), hexamethylene tetramine (HMT), dicumyl peroxide (DCP), tert-butyl cumyl peroxide (TBCP), di-tert-butyl peroxide (DTBP), dibenzoyl peroxide (DBP), and tert-butyl peroxybenzoate (TBPB).
5 . The hose according to claim 1 , wherein materials forming one or more of the inner tube, the reinforcement layer and/or the cover layer comprise one or more accelerator(s) selected from the group consisting of 2-2′-dithiobis(benzothiazole), tetrabenzylthiuram disulfide, N-cyclohexyl-2-benzothiazole sulfonamide, N,N′-dicyclohexyl-2-benzothiazole sulfonamide, and zinc dibenzyl dithiocarbamate.
6 . The hose according to claim 1 , wherein the inner tube comprises a tube and tube filler.
7 . The hose according to claim 1 , wherein the reinforcing layer comprises two individual calendered fabric layers.
8 . The hose according to claim 1 further comprising a friction layer and a second reinforcing layer, wherein the inner tube comprises a tube and tube filler.
9 . The hose according to claim 8 , wherein the reinforcing layer comprises two individual calendered fabric layers, and wherein the second reinforcing layer comprises a polyester monofilament helix and two individual calendered fabric layers.
10 . The hose according to claim 8 , wherein the reinforcing layer comprises an individual calendered fabric layer and a wire helix layer, and wherein the second reinforcing layer comprises a second individual calendered fabric layer.
11 . The hose according to claim 1 , wherein the inner tube comprises ultra-high molecular weight polyethylene.
12 . The hose according to claim 1 , wherein the inner tube comprises a thermoplastic material.
13 . The hose according to claim 1 , wherein the cover layer comprises a rubber material, the inner tube comprises a thermoplastic material, and the reinforcement layer comprises fiber.
14 . The hose according to claim 1 , wherein the inner tube comprises a rubber material.
15 . The hose according to claim 1 further comprising water in a lumen formed inside the inner tube.
16 . The hose according to claim 1 , wherein materials forming one or more of the inner tube, the reinforcement layer and/or the cover layer comprise one or more accelerator(s) including sulfonamide accelerator(s).
17 . The hose according to claim 6 , wherein the tube is formed of a thermoplastic barrier, and the tube filler is formed of a rubber.
18 . The hose according to claim 13 , wherein the thermoplastic material of the inner tube includes ultra-high molecular weight polyethylene, and the rubber material of the cover layer includes ethylene propylene diene monomer rubber.
19 . The hose according to claim 1 , wherein all layers of the hose are devoid of nitrosamines.
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 materials forming one or more of the inner tube, the reinforcement layer and/or the cover layer comprise one or more accelerator(s) selected from the group consisting of 2-2′-dithiobis(benzothiazole), tetrabenzylthiuram disulfide, N-cyclohexyl-2-benzothiazole sulfonamide, N,N′-dicyclohexyl-2-benzothiazole sulfonamide, and zinc dibenzyl dithiocarbamate, and wherein at least the inner tube is devoid of nitrosamines.
21 . The hose according to claim 20 , wherein the cover layer comprises a rubber material, the inner tube comprises a thermoplastic material, and the reinforcement layer comprises fiber.
22 . 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 tube and a tube filler,
the tube comprising a thermoplastic barrier,
the tube filler comprising a rubber,
the reinforcement layer comprising a calendered rubber-fabric layer, and
the cover layer comprising a rubber that is different than the rubber of the tube filler,
wherein each of the inner tube, the reinforcement layer, and the cover layer is free of nitrosamines.