| Title of Invention | A PROCESS FOR MAKING AN EPOXY RESIN |
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| Abstract | The present invention relates to a process for making an epoxy resin comprising (a) converting at least one or more phenols to an α -hydroxy ester derivative by reacting at least one or more phenols with a glycidyl ester or substituted glycidyl ester; (b) reacting the α hydroxy ester derivative of at least one or more phenols with a hydrogen halide to form an α halohydrin intermediate of at least one or more phenols; and (c) epoxidizing the α halohydrin intermediate of at least one or more phenols to form an epoxy resin. |
| Full Text | PROCESS FOR MAMJFACTURING A top/DROXYESTER Derivative-INTERMEDIATE AND EPOXY RESINS PREPARED THEREFROM The present invention relates to a process foil: manufacturing an a-halchydrin esker derivative of at l- list one or more phenols and converting such a-halohydrin derivative to an epoxy resin. More specifically, the present invention relic to a process for manufacturing an a-halohydrin derivate a.c: at leas OTIB or more phenols, converting such a-lialohydrin ester derivative to an a-halohydrin intermediate of at least one or more phenols and such a-halohydrin intermediates of the at least one or more phenols to make an epoxy resin. For example, the preset;:, invention is useful for manufacturing biphenyl A a-Holohedrism are made, as reactive intermediates, via several processes which are well knot :rig to those s'lcilled ie the art. Generally, the intermediate: holohedrism are subsequently converted into epoxides. In one widely practiced process, a-halohydrins are made tee reacting love; molecular weight olefin-containing compound such as propylene, butyiene and allyl chloride, with halogens, such as chlorine or bromine, in water. The a-halohydrins, more specifically the a-chlorohydrins, from propylene, butyiene and allyl chloride are subsequently used for manufacturing propylene oxide, butyiene oxide and epichlorohydrin (ECH) respectively, iti large scale. The process chemistries for the industrial processes of propylene oxide and SCH are outlined in the following CLAIMS: 1, A process for making an epoxy resin comprising converting an a- derivative of -it least one or more phenols to an epoxy resin. 2, A process for making an epoxy resin comprising (a) conversancy at least one or more phenols :o an a-hydroxy ester derivative by reacting the at least new or more phenols with a glycidyl ester or substituted glycidyl ester and (b) converting the a-hydroxy ester derivative of the at lease one or more phenols to an resin. 3 . A process of making an epoxy resin comprising (a) converting an a-hydroxy esker derivative of at least one or more phenols to an a-halohydrin intermediate of at least one or more phenols and (b) converting the a-halohydrin intermediate of at least kii-or more phenols to an epoxy resin. 4. A process of making an epoxy resin comprising (a) reaction of the a-hydroxy ester derivate ' of at least one or more phenols which a hydrogen halide form an a-halohydrin intermediate of at least one or phenols and (b) deoxidizing the a-halohydrin intermediate of at least one or more phenols to form an epoxy resin. 5. A process for making a a-halohydrin intermediate of at least one or more phenols comprising' reacting (a) an a-hydroxy ester derivative of at least the or more phenols vetch (b) a hydrogen halide. 100. The composition of Claim 99 wherein the a-halohydrin intermediate of at least one or more phenyls comprising a structure represented by Formula I is precinct in an amount of from 25 to leas than 100 percent by weight. |
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in-pct-2002-1886-che-abstract.pdf
in-pct-2002-1886-che-assignement.pdf
in-pct-2002-1886-che-claims filed.pdf
in-pct-2002-1886-che-claims grand.pdf
in-pct-2002-1886-che-correspondnece-others.pdf
in-pct-2002-1886-che-correspondnece-po.pdf
in-pct-2002-1886-che-description(complete) filed.pdf
in-pct-2002-1886-che-description(complete) grand.pdf
in-pct-2002-1886-che-form 1.pdf
in-pct-2002-1886-che-form 18.pdf
in-pct-2002-1886-che-form 26.pdf
in-pct-2002-1886-che-form 3.pdf
in-pct-2002-1886-che-form 5.pdf
in-pct-2002-1886-che-other documents.pdf
| Patent Number | 208990 | |||||||||
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| Indian Patent Application Number | IN/PCT/2002/1886/CHE | |||||||||
| PG Journal Number | 38/2007 | |||||||||
| Publication Date | 21-Sep-2007 | |||||||||
| Grant Date | 16-Aug-2007 | |||||||||
| Date of Filing | 18-Nov-2002 | |||||||||
| Name of Patentee | DOW GLOBAL TECHNOLOGIES INC | |||||||||
| Applicant Address | Washington Street, 1790 Building, Midland, Michigan 48674 | |||||||||
Inventors:
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| PCT International Classification Number | C08G59/00 | |||||||||
| PCT International Application Number | PCT/US2001/015356 | |||||||||
| PCT International Filing date | 2001-05-14 | |||||||||
PCT Conventions:
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