Method for purifying 3-methacryloxypropyldimethylhalosilanes and

Details Method for purifying 3-methacryloxypropyldimethylhalosilanes and Method for purifying 3-methacryloxypropyldimethylhalosilanes and

1997-12-02

1998-12-08

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C07F 708

Patent

active

058471782

ABSTRACT:
A method for purifying 3-methacryloxypropyldimethylhalosilanes or 3-methacryloxypropyl methyldihalosilanes which is characterized by the fact that 1-methyl-2-methacryloxyethyldimethyl halosilanes or 1-methyl-2-methacryloxyethylmethyldihalosilanes contained in products or fractions consisting of 3-methacryloxypropyldimethylhalosilanes or 3-methacryloxypropylmethyl dihalosilanes produced by a hydrosilation reaction of allyl methacrylate with dimethylhalosilanes or methyldihalosilanes are decomposed by means of at least one copper compound selected from the group consisting of copper hydroxides, copper salts other than copper halides, and copper oxides, after which these compounds are subjected to fractional distillation.

REFERENCES:
patent: 5262555 (1993-11-01), Okawa et al.
Cameron et al., "Polymerization of poly(dimethylsiloxane)macromers: 1. Copolymerization. . .".
English abstract of Hei 7-316164, 1995.

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