Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing
Patent
1997-04-15
1998-03-03
Shaver, Paul F.
Organic compounds -- part of the class 532-570 series
Organic compounds
Silicon containing
556441, C07F 708
Patent
active
057236437
ABSTRACT:
A method to make high-purity acryloxy- or methacryloxy-functional organosilicon compounds in high yields by inhibiting gelation of the reaction product during preparation. The method comprises (A) reacting an acrylate or methacrylate ester of an alcohol comprising an aliphatically unsaturated bond or a phenol comprising an aliphatically unsaturated bond with a (B) SiH-functional silicon compound in the presence of (C) a hydrosilylation reaction catalyst and (D) a polymerization inhibitor described by formula ##STR1## where n is 0 or 1; M is an atom selected from the group consisting of N, P, As, Sb, O, S, Se, Sn, and I; R is a monovalent hydrocarbon group or hydrogen atom; m is 1, 2, or 3; and X is a conjugate base of an organic acid or inorganic acid.
The present method can further comprise distillation of the reaction mixture resulting from the reaction of component (A) and (B) in the presence of component (D).
REFERENCES:
patent: 5103032 (1992-04-01), Turner et al.
patent: 5145979 (1992-09-01), Takatsuna et al.
patent: 5262555 (1993-11-01), Okawa et al.
patent: 5493039 (1996-02-01), Okawa et al.
Mikami Ryuzo
Okawa Tadashi
Boley William F.
Dow Corning Toray Silicone Co. Ltd.
Shaver Paul F.
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