Overbased barium complexes of c8 to c10 carboxylic acids

An overbased barium complex prepared by a process comprising the steps of:

• heating a mixture of barium hydroxide monohydrate and an isomeric mixture of from about C10 to about C15 alcohols in the presence of a solvent, thereby producing a first mixture;
• contacting the first mixture and an isomeric mixture of from about C8 to about C10 branched carboxylic acids, thereby producing a second mixture which comprises unreacted barium hydroxide;
• and
• contacting the second mixture and carbon dioxide, thereby producing said overbased barium complex;
• with the proviso that when the barium concentration in said overbased barium complex is 25 wt. % or more, said isomeric mixture of C8 to about C10 branched carboxylic acids is substantially free of 2-ethylhexanoic acid.

A process for preparing an overbased barium complex comprising the steps of:

• heating a mixture of barium hydroxide monohydrate and an isomeric mixture of from about C11 to about C14 alcohols in the presence of a solvent, thereby producing a first mixture;
• contacting the first mixture and an isomeric mixture of from about C8 branched carboxylic acids, thereby producing a second mixture which comprises unreacted barium hydroxide;
• and
• contacting the second mixture and carbon dioxide, thereby producing said overbased barium complex;
• with the proviso that when the barium concentration in said overbased barium complex is 25 wt. % or more, said isomeric mixture of C8 to about C10 branched carboxylic acids is substantially free of 2-ethylhexanoic acid.

An overbased barium complex prepared by a process comprising the steps of:

• heating a mixture of barium hydroxide monohydrate and an isomeric mixture of from about C11 to about C14 alcohols in the presence of a solvent, thereby producing a first mixture;
• contacting the first mixture and an isomeric mixture of from about C8 branched carboxylic acids, thereby producing a second mixture which comprises unreacted barium hydroxide;
• and
• contacting the second mixture and carbon dioxide, thereby producing said overbased barium complex;
• with the proviso that when the barium concentration in said overbased barium complex is 25 wt. % or more, said isomeric mixture of C8 to about C10 branched carboxylic acids is substantially free of 2-ethylhexanoic acid.

A stabilized halogen-containing polymer composition comprising:

• (a) a halogen-containing polymer;
• and
• (b) a heat stabilizing amount of an overbased barium complex prepared by a process comprising the steps of:
• heating a mixture of barium hydroxide monohydrate and an isomeric mixture of from about C10 to about C15 alcohols in the presence of a solvent, thereby producing a first mixture;
• contacting the first mixture and an isomeric mixture of from about C8 to about C10 branched carboxylic acids, thereby producing a second mixture which comprises unreacted barium hydroxide;
• and
• contacting the second mixture and carbon dioxide, thereby producing said overbased barium complex;
• with the proviso that when the barium concentration in said overbased barium complex is 25 wt. % or more, said isomeric mixture of C8 to about C10 branched carboxylic acids is substantially free of 2-ethylhexanoic acid.

An air-drying coating composition comprising:

• (a) an alkyd resin;
• and
• (b) an overbased barium complex in an amount effective for air-drying, wherein said overbased barium complex is prepared by a process comprising the steps of:
• heating a mixture of barium hydroxide monohydrate and an isomeric mixture of from about C10 to about C15 alcohols in the presence of a solvent, thereby producing a first mixture;
• contacting the first mixture and an isomeric mixture of from about C8 to about C10 branched carboxylic acids, thereby producing a second mixture which comprises unreacted barium hydroxide;
• and
• contacting the second mixture and carbon dioxide, thereby producing said overbased barium complex;
• with the proviso that when the barium concentration in said overbased barium complex is 25 wt. % or more, said isomeric mixture of C8 to about C10 branched carboxylic acids is substantially free of 2-ethylhexanoic acid.

An engine oil composition having detergent properties comprising:

• (a) an engine oil;
• and
• (b) an overbased barium complex in an amount effective for producing detergent properties, wherein said overbased barium complex is prepared by a process comprising the steps of:
• heating a mixture of barium hydroxide monohydrate and an isomeric mixture of from about C10 to about C15 alcohols in the presence of a solvent, thereby producing a first mixture;
• contacting the first mixture and an isomeric mixture of from about C8 to about C10 branched carboxylic acids, thereby producing a second mixture which comprises unreacted barium hydroxide;
• and
• contacting the second mixture and carbon dioxide, thereby producing said overbased barium complex;
• with the proviso that when the barium concentration in said overbased barium complex is 25 wt. % or more, said isomeric mixture of C8 to about C10 branched carboxylic acids is substantially free of 2-ethylhexanoic acid.

A process for preparing an overbased barium complex comprising the steps of:

• heating a mixture of barium hydroxide monohydrate and an isomeric mixture of from about C10 to about C15 alcohols in the presence of a solvent, thereby producing a first mixture;
• contacting the first mixture and an isomeric mixture of C4 to C13 branched carboxylic acids prepared by the oxo process, thereby producing a second mixture which comprises unreacted barium hydroxide;
• and
• contacting the second mixture and carbon dioxide, thereby producing said overbased barium complex;
• with the proviso that when the barium concentration in said overbased barium complex is 25 wt. % or more, said isomeric mixture of C4 to about C13 branched carboxylic acids is substantially free of 2-ethylhexanoic acid.