Highly over-based light colored liquid alkaline earth metal carboxylate

Abstract

An overbased alkaline earth metal organic complex of a carboxylic acid is formed by the reaction of a basic alkaline earth metal compound, and alcohol and/or glycol, a carboxylic acid, and carbon dioxide, wherein the carboxylic acid is a non-fatty alkyl group-containing carboxylic acid, such as one containing an alkyl group of up to eight carbon atoms and/or one containing an alkyl-substituted or unsubstituted aromatic group.

1 . A process of forming an overbased alkaline earth metal organic complex of a carboxylic acid by the reaction of a basic alkaline earth metal compound, and alcohol and/or glycol, a carboxylic acid, and carbon dioxide comprising using, as the carboxylic acid, one or more non-fatty alkyl group-containing carboxylic acid(s) selected from the group consisting of an non-fatty alkyl group-containing carboxylic acid(s), alkyl group-substituted aromatic carboxylic acids, unsubstituted aromatic carboxylic acids, and mixtures thereof.  
   
   
       2 . The process of  claim 1  wherein the carboxylic acid contains an alkyl group of up to eight carbon atoms.  
   
   
       3 . The process of  claim 2  wherein the acid is 2 ethylhexanoic acid.  
   
   
       4 . The process of  claim 1  wherein the carboxylic acid contains an alkyl-substituted or unsubstituted aromatic group.  
   
   
       5 . The process of claims  1  wherein the molar ratio of alkaline earth metal compound to such acid in the initial reaction medium is from about 3 to about 7.5 moles for each mole of acid.  
   
   
       6 . The process of claims  1  wherein the alkaline earth metal is barium.  
   
   
       7 . A process of forming an overbased barium organic complex of a carboxylic acid by the reaction of a basic barium compound, and alcohol and/or glycol, a carboxylic acid, and carbon dioxide, comprising using, as the carboxylic acid, one or more non-fatty alkyl group-containing carboxylic acid(s).  
   
   
       8 . The process of  claim 7  wherein the carboxylic acid contains an alkyl group of up to eight carbon atoms.  
   
   
       9 . The process of  claim 8  wherein the acid is 2-ethylhexanoic acid.  
   
   
       10 . The process as of  claim 7  wherein the carboxylic acid contains an alkyl-substituted or unsubstituted aromatic group.  
   
   
       11 . The process as of claims  7  wherein the molar ratio of alkaline earth metal compound to such acid in the initial reaction medium is from about 3 to about 7.5 moles for each mole of acid.  
   
   
       12 . An overbased alkaline earth metal organic complex of a carboxylic acid formed by the process of claims  1 .  
   
   
       13 . A polyvinyl chloride composition comprising the overbased alkaline earth metal organic complex of a carboxylic acid as claimed in  claim 12.