Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing
Reexamination Certificate
2005-05-10
2005-05-10
Gulakowski, Randy (Department: 1712)
Organic compounds -- part of the class 532-570 series
Organic compounds
Silicon containing
43, 43, 43, 43, 43, 43, C560S205000, C560S218000
Reexamination Certificate
active
06891055
ABSTRACT:
The present invention relates to a process for producing substituted glycerol acrylates from substituted epoxides. More specifically, the present invention relates to a process comprising the steps of(a) reacting a first reaction mixture comprising substituted epoxide with at least one epoxide opening catalyst and at least one acrylic acid to form a first reaction product comprising between about 60 and about 85 mole % substituted glycerol acrylate and said substituted epoxide;(b) treating said first reaction mixture with a nucleophilic compound to form a second reaction product which is substantially free of said substituted epoxide and which comprises said substituted glycerol acrylate and a nucleophile derivative of said substituted epoxide; and(c) treating said second reaction product to remove said nucleophile derivative and produce substituted glycerol acrylate having less than about 5 weight % difunctional impurities.
REFERENCES:
patent: 6380424 (2002-04-01), Yoneda et al.
patent: 6414182 (2002-07-01), Shingai et al.
patent: WO 2004014837 (2004-02-01), None
Molock Frank
Zanini Diana
Gulakowski Randy
Zimmer Marc S.
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