Deodorizing polysulfide materials

Abstract

A deodorized polysulfide composition, comprising a major amount of polysulfide material and a minor but effective amount of a deodorizing composition comprising an oil-soluble tertiary alkanolamine of the formula: ##STR1## wherein R 2 , R 3 and R 4 are independently alkyl groups of about 1 to 6 carbon atoms; and a monohydric alkyl alcohol containing up to about 12 carbon atoms is disclosed.

We claim: 
     
       1. A deodorized polysulfide composition, comprising: (A) a polysulfide material;   (B) an effective amount of a deodorizing composition comprising: (i) 0.25 to 0.5%, based on the weight of the sulfided composition, of an oil-soluble tertiary alkanolamine of the formula ##STR5## wherein R 2 , R 3  and R 4  are independently alkyl; groups of about 1 to 6 carbon atoms; and   (ii) 1.5 to 3% of a monohydric alkyl alcohol containing up to about 12 carbon atoms.     
     
     
       2. The composition according to claim 1 wherein said tertiary alkanolamine is dimethylethanolamine. 
     
     
       3. The composition according to claim 2 wherein said alkyl alcohol is a primary alcohol. 
     
     
       4. The composition according to claim 3 wherein said primary alcohol is 2-ethylhexanol. 
     
     
       5. A process for deodorizing polysulfide materials comprising the steps of: I. mixing said materials with an oil-soluble composition comprising a blend of: (A) 0.25 to 0.5%, based on the weight of the sulfided composition, of an oil-soluble tertiary alkanolamine of the formula: ##STR6## wherein R 2 , R 3  and R 4  are independently alkyl groups of about 1 to 6 carbon atoms; and   (B) 1.5 to 3% of a monohydric alkyl alcohol containing up to about 12 carbon atoms; and     II. heating the mixture to a temperature from about 70° to 170° F. for a period of a few minutes to about 2 hours.   
     
     
       6. The process according to claim 5 wherein said alkanolamine is dimethylethanolamine. 
     
     
       7. The process according to claim 6 wherein said alkyl alcohol is a primary alcohol. 
     
     
       8. The process according to claim 7 wherein said primary alcohol is 2-ethylhexanol. 
     
     
       9. The process according to claim 5 wherein said polysulfide material is treated with said oil-soluble composition for a period of time ranging from 30 min. to 2 hours. 
     
     
       10. The process according to claim 5 wherein said polysulfide material is treated with said oil-soluble composition at a temperature ranging from about 120° to 160° F. 
     
     
       11. The process according to claim 5 wherein said polysulfide material is treated with said oil-soluble composition at a temperature ranging from about 140° F.