US2018273721A1PendingUtilityA1

Rubber and hydraulic hose comprising a inner tube made of the rubber material

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Assignee: EATON INTELLIGENT POWER LTDPriority: Sep 30, 2015Filed: Sep 22, 2016Published: Sep 27, 2018
Est. expirySep 30, 2035(~9.1 yrs left)· nominal 20-yr term from priority
Inventors:Dipak SinghJuergen Schmidt
B32B 15/18B32B 1/08B32B 2264/102B32B 2307/712B32B 2307/7265B32B 2270/00B32B 2255/20B32B 25/16B32B 15/14B32B 25/14B32B 2255/10B32B 2307/5825B32B 2262/103B32B 2250/03B32B 2307/554B32B 5/02B32B 2597/00C08K 13/02B32B 2255/205B32B 25/02B32B 2264/108C08K 2003/2227B32B 2307/714B32B 2255/02C08K 3/22B32B 25/00F16L 11/10C08L 9/02B32B 2307/306C08L 21/00B32B 25/10C08L 7/00B32B 2307/54C08K 5/14C08K 5/098C08K 2003/222C08K 3/26C08K 3/06B32B 2307/40B32B 15/06
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Claims

Abstract

A curing composition for rubber includes: a metallic co-agent selected from the group consisting of zinc diacrylate and zinc methacrylate; organic peroxide; sulfur; and a hydrotalcite compound. The curing composition and a rubber matrix can be used to make an uncured rubber composition. A cured rubber is obtainable by curing the uncured rubber composition.

Claims

exact text as granted — not AI-modified
1 . A curing composition for rubber, comprising:
 a metallic co-agent selected from the group consisting of zinc diacrylate and zinc methacrylate;   organic peroxide;   sulfur; and   a hydrotalcite compound.   
     
     
         2 . An uncured rubber composition comprising a rubber matrix and the curing composition of  claim 1 . 
     
     
         3 . The uncured rubber composition according to  claim 2 , wherein the rubber matrix is selected from the group consisting of Acrylonitrile butadiene rubber, hydrogenated nitrile butadiene rubber, chlorosulphonated polyethylene, styrene-butadiene rubber, or mixtures thereof. 
     
     
         4 . The uncured rubber composition according to  claim 2 , wherein the organic peroxide is present in 2 to 15 parts per hundred parts of rubber. 
     
     
         5 . The uncured rubber composition according to  claim 2 , wherein the metallic coagent is present in 2 to 15 parts per hundred parts of rubber. 
     
     
         6 . The uncured rubber composition according to  claim 2 , wherein the sulfur is present in 0.5 to 2.0 parts per hundred parts of rubber. 
     
     
         7 . The uncured rubber composition according to  claim 2 , wherein the hydrocalcite compound is present in 2 to 20 parts per hundred parts of rubber. 
     
     
         8 . The uncured rubber composition according to  claim 2 , wherein hydrogenated nitrile butadiene rubber is present in 5 to 20 parts per hundred parts of rubber. 
     
     
         9 . A cured rubber obtainable by curing the uncured rubber composition according to  claim 2 . 
     
     
         10 . A hydraulic hose comprising
 a tube comprising the cured rubber according to  claim 9 ; and   a reinforcement layer.   
     
     
         11 . The hydraulic hose according to  claim 10 , wherein the reinforcement layer comprises brass-coated steel and directly contacts an innermost layer. 
     
     
         12 . The hydraulic hose according to  claim 10 , wherein the reinforcement layer comprises spiral or braid wire reinforcements. 
     
     
         13 . A method for producing a cured rubber, comprising:
 providing the uncured rubber composition according to  claim 2 ; and   heat treating the uncured rubber composition.

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