US2016001370A1PendingUtilityA1

Reducing agents for silver morphology control

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Assignee: CARESTREAM HEALTH INCPriority: Jul 3, 2014Filed: Jun 17, 2015Published: Jan 7, 2016
Est. expiryJul 3, 2034(~7.9 yrs left)· nominal 20-yr term from priority
Inventors:David R. Whitcomb
B22F 1/0547B22F 9/24B22F 1/004B22F 1/0044B22F 9/18C22B 11/04
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Claims

Abstract

A method comprising providing at least one reducing agent comprising at least one phenol group, the at least one reducing agent not also comprising a halogen atom, and reducing at least one silver ion to at least one silver nanowire in a reaction mixture comprising the at least one reducing agent. Exemplary reducing agents are 3,4-dihydroxybenzotriazole, 2,2′-isobutylidene-bis-(4,6-dimethyl-phenol), and tannic acid.

Claims

exact text as granted — not AI-modified
What is claimed: 
     
         1 . A method comprising:
 providing at least one reducing agent comprising at least one phenol group, the at least one reducing agent not also comprising a halogen atom, and   reducing at least one silver ion to at least one silver nanowire in a reaction mixture comprising the at least one reducing agent.   
     
     
         2 . The method according to  claim 1 , wherein the at least one reducing agent comprises at least one of 3,4-dihydroxybenzotriazole, 2,2′-isobutylidene-bis-(4,6-dimethyl-phenol), and tannic acid. 
     
     
         3 . The method according to  claim 1 , wherein the at least one reducing agent is selected from a group consisting of 3,4-dihydroxybenzotriazole, 2,2′-isobutylidene-bis-(4,6-dimethyl-phenol), and tannic acid. 
     
     
         4 . The method according to  claim 1 , wherein the reaction mixture further comprises at least one polyol. 
     
     
         5 . The method according to  claim 4 , wherein the at least one polyol comprises propylene glycol. 
     
     
         6 . The method according to  claim 1 , wherein the reaction mixture further comprises at least one protecting agent. 
     
     
         7 . The method according to  claim 6 , wherein the at least one protecting agent comprises polyvinyl pyrrolidone. 
     
     
         8 . The method according to  claim 1 , wherein the reaction mixture further comprises at least one halide compound capable of forming a halide ion. 
     
     
         9 . The method according to  claim 1 , wherein the reaction mixture further comprises at least one halide ion. 
     
     
         10 . The method according to  claim 1 , wherein the reaction mixture further comprises at least one polar aprotic solvent. 
     
     
         11 . The method according to  claim 10 , wherein the at least one polar aprotic solvent comprises acetone.

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