US2003130142A1PendingUtilityA1

Water-dispersible lubricating blend for metal working processes

38
Priority: Aug 16, 2001Filed: Aug 15, 2002Published: Jul 10, 2003
Est. expiryAug 16, 2021(expired)· nominal 20-yr term from priority
Inventors:Duong Nguyen
C10M 111/04C10M 2207/301C10M 2209/1045C10M 2207/022C10N 2020/091C10N 2040/20C10M 2209/109C10M 129/78C10M 173/02C10M 2209/104C10M 2209/1095C10M 2207/30C10N 2030/24
38
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Claims

Abstract

The invention relates to an aqueous mixture of esters and acids from the reaction of at least one polyhydric alcohol and at least one monoacid and at least one diacid coupled with a surfactant and an effective amount of base to solubilize the mixture.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A water-soluble or water-dispersible composition which comprises a combination of a reaction product of a monoacid, a diacid and a polyhydric alcohol inclusive of their derived salts with a polyalkylene glycol ester and further wherein 
 (a) said monoacid and salts thereof is of formula (I)    R 1 —CO 2 H  wherein R 1  is selected from the group consisting of C 5-20  alkyl, C 5-20  alkenyl, C 6-26  aryl, C 6-30  alkaryl and C 6-30  aralkyl;      (b) said diacid and salts thereof is of formula (II)    HO 2 C—R 2 —CO 2 H  wherein R 2  is selected from the group consisting of C 2-36  alkyl, C 3-36  alkenyl, C 6-42  aryl, C 64-2  alkaryl and C 64-2 aralkyl;      (c) said polyhydric alcohol is selected from the group of formulas (III) and (IV)    R 3   4−x —C—((R 4 ) n OH) x      and    R 3   4−x —(R 5 ) y —O—(R 6 ) z —((R 4 ) n OH) x    wherein each 
 R 3  is selected independently from the group consisting of H, (R 4 ) n OH, C 1-12  alkyl, C 2-14  alkenyl, C 6-36  aryl, C 6-36  alkaryl, C 6-36  aralkyl and salts thereof;  
 R 4  is selected from the group consisting of C 1-8  alkyl and C 2-8  alkenyl;  
 R 5 , R 6  are independently selected from the group consisting of R 4 ;  
 x is an integral value from 2-4 inclusive;  
 y is an integral value from 0 to 1 inclusive;  
 z is an integral value from 0 to 1 inclusive; and  
 n is an integral value from 0 to 1 inclusive; and  
     (d) said alkylene glycol ester is of formula (V)                        wherein 
 R 7  is selected from the group consisting of C 2-36  alkyl, C 3-36  alkenyl, C 6-42  aryl, C 6-42  alkaryl and C 6-42 aralkyl;  
 R 8  is selected from the group consisting of C 1-6  alkyl and C 2-8  alkylene; and  
 a is an integral value from 1 to 40.  
     
     
     
         2 . The composition of  claim 1  wherein 
 (a) a molar ratio of said diacid/monoacid/polyhydric alcohol is between a range of ratios of about 0.6-1.4/1.6-2.4/1.0.  
 
     
     
         3 . The composition of  claim 2  wherein 
 (a) said molar ratio is between a range of ratios of about 0.8-1.2/1.8-2.2/1.0.  
 
     
     
         4 . The composition of  claim 3  wherein 
 (a) said molar ratio is about 0.9/2.1/1.0.  
 
     
     
         5 . The composition of  claim 3  wherein 
 (a) said composition has a viscosity of about 100,000 to about 600 SSU at 100° F.  
 
     
     
         6 . The composition of  claim 5  wherein 
 (a) said composition has an acid number of about 13-65 mg KOH/g.  
 
     
     
         7 . The composition of  claim 1  wherein 
 (a) said monoacid is selected from the group consisting of oleic acid and isostearic acid;  
 (b) said diacid is selected from the group consisting of sebacic acid, azelaic acid, adipic acid and dimethylpropionic acid;  
 (c) said polyhydric alcohol is selected from the group consisting of pentaerythritol, dipentaerythritol, neopentyl glycol and trimethylol propane; and  
 (d) said polyalkylene glycol ester is polyethyleneglycol oleate having a molecular weight of about 400.  
 
     
     
         8 . The composition of  claim 7  wherein 
 (a) said monoacid is oleic acid;  
 (b) said diacid is sebacic acid; and  
 (c) said polyhydric alcohol is pentaerythritol.  
 
     
     
         9 . The composition of  claim 7  wherein 
 (a) said monoacid is oleic acid;  
 (b) said diacid is azelaic acid; and  
 (c) said polyhydric alcohol is pentaerythritol.  
 
     
     
         10 . The composition of  claim 7  wherein 
 (a) said monoacid is isostearic acid;  
 (b) said diacid is sebacic acid; and  
 (c) said polyhydric alcohol is pentaerythritol.  
 
     
     
         11 . The composition of  claim 7  wherein 
 (a) said monoacid is oleic acid;  
 (b) said diacid is adipic acid; and  
 (c) said polyhydric alcohol is pentaerythritol.  
 
     
     
         12 . A process which comprises the steps of: 
 (a) blending a monoacid, a diacid and a polyhydric alcohol with heating until an acid number of between about 13-65 is obtained for the blended moiety; and    (b) adding a polyalkylene glycol ester and a sufficient amount of base to solubilize said ester in an aqueous solution.    
     
     
         13 . The process of  claim 12  wherein 
 (a) said monoacid and salts thereof is of formula (I)  
 R 1 —CO 2 H  wherein R 1  is selected from the group consisting of C 5-20  alkyl, C 5-20  alkenyl, C 6-26  aryl, C 6-30  alkaryl and C 6-30  aralkyl;    
 (b) said diacid and salts thereof is of formula (II)  
 HO 2 C—R 2 —CO 2 H  wherein R 2  is selected from the group consisting of C 2-36  alkyl, C 3-36  alkenyl, C 6-42  aryl, C 6-42  alkaryl and C 6-42  aralkyl;    
 (c) said polyhydric alcohol is selected from the group of formulas (III) and (IV)  
 R 3   4−x —C—((R 4 ) n OH) x    
 and  
 R 3   4−x —(R 5 ) y —O—(R 6 ) z —((R 4 ) n OH) x    wherein each 
 R 3  is selected independently from the group consisting of H, (R 4 ) n OH, C 1-12  alkyl, C 2-14  alkenyl, C 6-36  aryl, C 6-36  alkaryl, C 6-36 aralkyl and salts thereof;  
 R 4  is selected from the group consisting of C 1-8  alkyl and C 2-8  alkenyl;  
 R 5 , R 6  are independently selected from the group consisting of R 4 ;  
 x is an integral value from 2-4 inclusive;  
 y is an integral value from 0 to 1 inclusive;  
 z is an integral value from 0 to 1 inclusive; and  
 n is an integral value from 0 to 1 inclusive; and  
   
 (d) said alkylene glycol ester is of formula (V)  
                     wherein 
 R 7  is selected from the group consisting of C 2-36  alkyl, C 3-36  alkenyl, C 6-42  aryl, C 6-42  alkaryl and C 6-42  aralkyl;  
 R 8  is selected from the group consisting of C 1-6  alkyl and C 2-8  alkylene; and  
 a is an integral value from 1 to 40.  
   
 
     
     
         14 . The process of  claim 13  wherein 
 (a) a molar ratio of said diacid/monoacid/polyhydric alcohol is between a range of ratios of about 0.6-1.4/1.6-2.4/1.0.  
 
     
     
         15 . The process of  claim 14  wherein 
 (a) said molar ratio is between a range of ratios of about 0.8-1.2/1.8-2.2/1.0.  
 
     
     
         16 . The process of  claim 15  wherein 
 (a) said molar ratio is about 0.9/2.1/1.0.  
 
     
     
         17 . The process of  claim 14  wherein 
 (a) said composition has a viscosity of about 100,000 to about 600 SSU at 100° F.  
 
     
     
         18 . The process of  claim 17  wherein 
 (a) said composition has an acid number of about 13-65 mg KOH/g.  
 
     
     
         19 . The composition of  claim 13  wherein 
 (a) said monoacid is selected from the group consisting of oleic acid and isostearic acid;  
 (b) said diacid is selected from the group consisting of sebacic acid, azelaic acid, adipic acid and dimethylpropionic acid;  
 (c) said polyhydric alcohol is selected from the group consisting of pentaerythitol, dipentaerythritol, neopentyl glycol and trimethylol propane; and  
 (d) said polyalkylene glycol ester is polyethyleneglycol oleate having a molecular weight of about 400.  
 
     
     
         20 . A process for using a metal working fluid which comprises: 
 (a) forming a water-soluble polymeric ester and acid blend comprising 
 (i) a monoacid;  
 (ii) a diacid;  
 (iii) a polyhydric alcohol; and  
   (b) combining said blend with 
 (i) an ester of a polyalkylene glycol and a fatty acid; and  
 (ii) an effective amount of a base to solubilize the blend and said ester in water to form an aqueous lubricant; and  
   (c) using said lubricant as a lubricating additive blend.    
     
     
         21 . The process of  claim 20  wherein 
 (a) said monoacid is of formula (I)  
 R 1 —CO 2 H  wherein R 1  is selected from the group consisting of C 5-20  alkyl, C 5-20  alkenyl, C 6-26  aryl, C 6-30  alkaryl and C 6-30  aralkyl;    
 (b) said diacid is of formula (II)  
 HO 2 C—R 2 —CO 2 H  wherein R 2  is selected from the group consisting of C 2-36  alkyl, C 3-36  alkenyl, C 6-42  aryl, C 6-42  alkaryl and C 6-42 aralkyl;    
 (c) said polyhydric alcohol is selected from the group of formulas (III) and (IV)  
 R 3   4−x —C—((R 4 ) n OH) x    
 and  
 R 3   4−x —(R 5 ) y —O—(R 6 ) z —((R 4 ) n OH) x    wherein each 
 R 3  is selected independently from the group consisting of H, (R 4 ) n OH, C 1-12 alkyl, C 2-14  alkenyl, C 6-36  aryl, C 6-36  alkaryl, C 6-36  aralkyl and salts thereof;  
 R 4  is selected from the group consisting of C 1-8  alkyl and C 2-8  alkenyl;  
 R 5 , R 6  are independently selected from the group consisting of R 4 ;  
 x is an integral value from 2-4 inclusive;  
 y is an integral value from 0 to 1 inclusive;  
 z is an integral value from 0 to 1 inclusive; and  
 n is an integral value from 0 to 1 inclusive; and  
   
 (d) said alkylene glycol ester is of formula (V)  
                     wherein 
 R 7  is selected from the group consisting of C 2-36  alkyl, C 3-36  alkenyl, C 6-42  aryl, C 6-42  alkaryl and C 6-42  aralkyl;  
 R 8  is selected from the group consisting of C 1-6  alkyl and C 2-8  alkylene; and  
 a is an integral value from 1 to 40.  
   
 
     
     
         22 . The process of  claim 21  wherein 
 (a) a molar ratio of said diacid/monoacid/polyhydric alcohol is between a range of ratios of about 0.6-1.4/1.6-2.4/1.0.  
 
     
     
         23 . The process of  claim 22  wherein 
 (a) said molar ratio is between a range of ratios of about 0.8-1.2/1.8-2.2/1.0.  
 
     
     
         24 . The process of  claim 23  wherein 
 (a) said molar ratio is about 0.9/2.1/1.0.  
 
     
     
         25 . The process of  claim 21  wherein 
 (a) said composition has a viscosity of about 100,000 to about 600 SSU at 100° F.  
 
     
     
         26 . The process of  claim 25  wherein 
 (a) said composition has an acid number of about 13-65 mg KOH/g.  
 
     
     
         27 . The composition of  claim 21  wherein 
 (a) said monoacid is selected from the group consisting of oleic acid and isostearic acid;  
 (b) said diacid is selected from the group consisting of sebacic acid, azelaic acid, adipic acid and dimethylpropionic acid;  
 (c) said polyhydric alcohol is selected from the group consisting of pentaerythitol, dipentaerythritol, neopentyl glycol and trimethylol propane; and  
 (d) said polyalkylene glycol ester is polyethyleneglycol oleate having a molecular weight of about 400.  
 
     
     
         28 . A composition which comprises: 
 (a) a mixture of esters and acids from the reaction of at least one polyhydric alcohol with at least one monoacid and at least one diacid; and    (b) a polyol ester.    
     
     
         29 . The composition of  claim 28  wherein 
 (a) said polyol ester is an ester of a polyalkylene glycol and a fatty acid.  
 
     
     
         30 . The composition of  claim 29  wherein 
 (a) said monoacid and salts thereof is of formula (I)  
 R 1 —CO 2 H  wherein R 1  is selected from the group consisting of C 5-20  alkyl, C 5-20  alkenyl, C 6-26  aryl, C 6-30  alkaryl and C 6-30  aralkyl;    
 (b) said diacid and salts thereof is of formula (II)  
 HO 2 C—R 2 —CO 2 H  wherein R 2  is selected from the group consisting of C 2-36  alkyl, C 3-36  alkenyl, C 6-42  aryl, C 6-42  alkaryl and C 64-2  aralkyl;    
 (c) said polyhydric alcohol is selected from the group of formulas (III) and (IV)  
 R 3   4−x —C—((R 4 ) n OH) x    
 and  
 R 3   4−x —(R 5 ) y —O—(R 6 ) z —((R 4 ) n OH) x    wherein each 
 R 3  is selected independently from the group consisting of H, (R 4 ) n OH, C 1-12  alkyl, C 2-14  alkenyl, C 6-36  aryl, C 6-36  alkaryl, C 6-36  aralkyl and salts thereof;  
 R 4  is selected from the group consisting of C 1-8  alkyl and C 2-8  alkenyl;  
 R 5 , R 6  are independently selected from the group consisting of R 4 ;  
 x is an integral value from 2-4 inclusive;  
 y is an integral value from 0 to 1 inclusive;  
 z is an integral value from 0 to 1 inclusive; and  
 n is an integral value from 0 to 1 inclusive; and  
   
 (d) said alkylene glycol ester is of formula (V)  
                     wherein 
 R 7  is selected from the group consisting of C 2-36  alkyl, C 3-36  alkenyl, C 6-42  aryl, C 6-42  alkaryl and C 6-42 aralkyl;  
 R 8  is selected from the group consisting of C 1-6  alkyl and C 2-8  alkylene; and  
 a is an integral value from 1 to 40.  
   
 
     
     
         31 . The composition of  claim 30  wherein 
 (a) a molar ratio of said diacid/monoacid/polyhydric alcohol is between a range of ratios of about 0.6-1.4/1.6-2.4/1.0.  
 
     
     
         32 . The composition of  claim 31  wherein 
 (a) said molar ratio is between a range of ratios of about 0.8-1.2/1.8-2.2/1.0.  
 
     
     
         33 . The composition of  claim 32  wherein 
 (a) said molar ratio is about 0.9/2.1/1.0.  
 
     
     
         34 . The composition of  claim 32  wherein 
 (a) said composition has a viscosity of about 100,000 to about 600 SSU at 100° F.  
 
     
     
         35 . The composition of  claim 34  wherein 
 (a) said composition has an acid number of about 13-65 mg KOH/g.  
 
     
     
         36 . The composition of  claim 32  wherein 
 (a) said monoacid is selected from the group consisting of oleic acid and isostearic acid;  
 (b) said diacid is selected from the group consisting of sebacic acid, azelaic acid, adipic acid and dimethylpropionic acid;  
 (c) said polyhydric alcohol is selected from the group consisting of pentaerythitol, dipentaerythritol, neopentyl glycol and trimethylol propane; and  
 (d) said polyalkylene glycol ester is polyethyleneglycol oleate having a molecular weight of about 400.  
 
     
     
         37 . A composition which comprises: 
 (a) a mixture of esters and acids from the reaction of at least one polyhydric alcohol and at least one monoacid and at least one diacid inclusive of their derived salts; and    (b) a surfactant selected from the group consisting of polyol esters, polyoxylethylene alkyl esters, nonionic surfactants, ethoxylated alcohols, ethoxylated carboxylic acid esters, ethoxylated phosphate esters, polyethyleneglycols, poly(ethyleneoxy) ethanol, alcohol ethoxylates, polyalkylene glycol fatty esters, ethoxylated fatty acids, amine ethoxylates, hydroxy alkanolamine ethoxylated moieties and alkyl amide ethoxylates.    
     
     
         38 . The composition of  claim 37  wherein 
 (a) the derived salts are sodium and potassium salts.  
 
     
     
         39 . The composition of  claim 37  wherein 
 (a) the derived salts are amine salts.  
 
     
     
         40 . A method comprising the step of 
 (a) using the composition of  claim 37  as a metal-working fluid.

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