Title of Invention

A PROCESS FOR MAKING AN EPOXY RESIN

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.


Documents:

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

in-pct-2002-1886-che-pct.pdf


Patent Number 208990
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:
# Inventor's Name Inventor's Address
1 BORIACK Clinton J 400 Sailfish Jones Creek, TX 77541
2 LIAO Zeng K 103 Bougainvillea Lake Jackson, TX 77566
PCT International Classification Number C08G59/00
PCT International Application Number PCT/US2001/015356
PCT International Filing date 2001-05-14
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 60/205,366 2000-05-18 U.S.A.