C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/520, 260/480
C07C 57/13 (2006.01) C07C 51/567 (2006.01) C07C 69/602 (2006.01)
Patent
CA 1335895
The present invention provides a process for the preparation of long chain hydrocarbyl substituted mono- or dicarboxylic acid materials in high active ingredient concentrations which comprises reacting a long chain hydrocarbon polymer, generally a polyolefin, and an monounsaturated carboxylic reactant such as maleic anhydride in the presence of chlorine, wherein at least about 60 mol% of the chlorine is added to the reaction mixture containing said polyolefin and monounsaturated carboxylic reactant at a reaction temperature not greater than about 170°C while imparting to the reaction mixture a total mixing energy of at least about 4 HP/1000 gal. A reaction zone provided with plural zone mixing comprising at least one axial pumping mixing zone and at least one high shear mixing zone is employed. This process selectivity produces more monofunctionalized long chain hydrocarbyl substituted mono- or dicarboxylic acid material product and substantially reduces the amount of oxidized by-product material, giving less sediment to be removed from the product.
590329
Bansal Jai Gopal
Emert Jacob
Nong Oon Chee
Roper Renee Marie
Bansal Jai Gopal
Borden Ladner Gervais Llp
Emert Jacob
Exxon Chemical Patents Inc.
Nong Oon Chee
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