US2002169232A1PendingUtilityA1

Saccharide-alkyleneoxy derivative and ink

49
Assignee: SEIKO EPSON CORPPriority: Jul 19, 2000Filed: Jul 19, 2001Published: Nov 14, 2002
Est. expiryJul 19, 2020(expired)· nominal 20-yr term from priority
Inventors:Masahiro Yatake
C07H 15/08C09D 11/30
49
PatentIndex Score
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Claims

Abstract

A saccharide-alkyleneoxy derivative comprising a compound represented by the following formula (1): A—(EP)n—OH   (1) wherein A represents a skeleton of a saccharide selected from the group consisting of C 3 to C 12 aldoses, ketoses and sugar alcohols; EP represents an ethyleneoxy group and/or a propyleneoxy group; and n represents an average number of the repeating units. Also disclosed are a method for producing the saccharide alkyleneoxy derivative, and an ink containing the saccharide-alkyleneoxy derivative.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A saccharide-alkyleneoxy derivative comprising a compound represented by the following formula (1):  
       A—(EP)n—OH   (1)  
       wherein A represents a skeleton of a saccharide selected from the group consisting of C 3  to C 12  aldoses, ketoses and sugar alcohols; EP represents an ethyleneoxy group and/or a propyleneoxy group; and n represents an average number of the repeating units.  
     
     
         2 . The saccharide-alkyleneoxy derivative according to  claim 1 , wherein the average number (n) of the repeating units in said formula (1) is from 0.5 to 10.  
     
     
         3 . A method for producing a saccharide-alkyleneoxy derivative comprising a compound represented by formula (1) below, which method comprises reacting at least one of ethylene oxide and propylene oxide with at least one saccharide selected from the group consisting of C 3  to C 12  aldoses, ketoses and sugar alcohols:  
       A—(EP)n—OH   (1)  
       wherein A represents a skeleton of a saccharide selected from the group consisting of C 3  to C 12  aldoses, ketoses and sugar alcohols; EP represents an ethyleneoxy group and/or a propyleneoxy group; and n represents an average number of the repeating units.  
     
     
         4 . Ink containing at least a coloring material, water, and a saccharide-alkyleneoxy derivative comprising a compound represented by the following formula (1):  
       A—(EP)n—OH   (1)  
       wherein A represents a skeleton of a saccharide selected form the group consisting of C 3  to C 12  aldoses, ketoses and sugar alcohols; EP represents an ethyleneoxy group and/or a propyleneoxy group; and n represents an average number of the repeating units.  
     
     
         5 . The ink according to  claim 4 , wherein the average number (n) of repeating units in said formula (1) is from 0.5 to 10.  
     
     
         6 . The ink according to  claim 4 , wherein said saccharide-alkyleneoxy derivative has a distributed molecular weight.  
     
     
         7 . The ink according to  claim 4 , wherein said saccharide-alkyleneoxy derivative has a number average molecular weight of 1000 or less.  
     
     
         8 . The ink according to  claim 4 , wherein A in said formula (1) is a skeleton of a saccharide selected from the group consisting of: aldoses having 6 or less carbon toms, including glyceraldehyde, erythrose, threose, arabinose, xylose, glucose, mannose, talose and galactose; aldoses having from 7 to 12 carbon atoms; ketoses having 6 or less carbon atoms, including erythrulose, ribulose, xylulose, lactose, psicose, tagatose and sorbose; ketoses having from 7 to 12 carbon atoms; sugar alcohols having 6 or less carbon atoms, including glycerol, erythritol, xylitol, sorbitol and mannitol; and sugar alcohols having from 7 to 12 carbon atoms.  
     
     
         9 . The ink according to  claim 4 , wherein said saccharide-alkyleneoxy derivative represented by formula (1) is present in an amount of from 0.1% to 30% by weight based on the weight of said ink.  
     
     
         10 . The ink according to  claim 4 , which further contains one or more C 3  to C 12  saccharides selected from the group consisting of: aldoses having 6 or less carbon atoms, including glyceraldehyde, erythrose, threose, arabinose, xylose, glucose, mannose, talose and galactose; aldoses having from 7 to 12 carbon atoms; ketoses having 6 or less carbon atoms, including erythrulose, ribulose, xylulose, lactose, psicose, tagatose and sorbose, ketoses having from 7 to 12 carbon atoms; sugar alcohols having from 6 or less carbon atoms, including glycerol, erythritol, xylitol, sorbitol and mannitol, sugar alcohols having from 7 to 12 carbon atoms.  
     
     
         11 . The ink according to  claim 10 , wherein said saccharide-alkyleneoxy derivative represented by formula (1) and said C 3  and C 12  saccharides are present, in total, in an amount of from 0.5% to 30% by weight based on the weight of said ink.  
     
     
         12 . The ink according to any one of  claims 4  to  11 , wherein said ink has a surface tension at 25° C. of 40 mN/m or less.  
     
     
         13 . The ink according to any one of  claims 4  to  12 , containing at least one of 0% to 20% by weight of di(tri)ethylene glycol monobutyl ether and 0% to 10% by weight of (di)propylene glycol monobutyl ether, each based on the weight of said ink.  
     
     
         14 . The ink according to any one of  claims 4  to  12 , containing a 1,2-alkylene glycol having from 4 to 10 carbon atoms in an amount of 0% to 10% by weight based on the weight of said ink.  
     
     
         15 . The ink according to any one of  claims 4  to  12 , containing an acetylene glycol surfactant in an amount of 0% to 5% by weight based on the weight of said ink.  
     
     
         16 . The ink according to any one of  claims 4  to  15 , containing at least one substance represented by formula (2) below in an amount of 0% to 10% by weight based on the weight of said ink:  
       R—(EP)m—OH   (2)  
       wherein R represents an alkyl group having from 4 to 10 carbon atoms, which may be branched, a cycloalkyl group or a phenyl group; EP represents an ethyleneoxy group and/or a propylaneoxy group; and m represents an average number of the repeating units.  
     
     
         17 . The ink according to  claim 16 , wherein the average number (m) of the reporting units in the substance represented by said formula (2) is from 1 to 10 and, when propyleneoxy groups represented by EP exist, the average number of repeating units of propyleneoxy groups is from 0.5 to 5.  
     
     
         18 . The ink according to  claim 4 , wherein said coloring material is at least one of a water-soluble dye and a water-soluble pigment that is made water-dispersible.  
     
     
         19 . The ink according to  claim 18 , wherein said pigment is made water dispersible by at least one of surface oxidation and coating with a polymer.  
     
     
         20 . The ink according to any one of  claims 4  to  19 , wherein said ink is for ink jet recording.  
     
     
         21 . The ink for ink jet recording according to claim  20 , wherein said ink is used in an ink jet recording apparatus having a head which discharges an ink in response to a signal using an electrostrictive device.

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