Synthesis of siloxane resins

Details Synthesis of siloxane resins Synthesis of siloxane resins

1998-04-06

2000-03-28

Dawson, Robert

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 10, 528 21, C08G 7706, C08G 7708, C08G 7712

Patent

active

060433302

ABSTRACT:
Novel processes for preparing hydridosiloxane and organohydridosiloxane resins are disclosed. The processes of the invention broadly provide for the steps of contacting a silane monomer with a phase transfer catalyst in the presence of a reaction mixture that includes a nonpolar, e.g., hydrocarbon, solvent, and a polar solvent, e.g., alcohol and water. The process is conducted under conditions effective to catalytically convert said silane monomer into hydridosiloxane and organohydridosiloxane resins. Recovery of the products is advantageously aided by the ease of separating the phase transfer catalyst from the dual phase reaction mixture by separating the immiscible polar solvent carrying the catalyst from the nonpolar solvent that carries the product. Hydridosiloxane and organohydridosiloxane resins produced by the processes of the invention are also provided.

REFERENCES:
patent: 3615272 (1971-10-01), Collins et al.
patent: 4624870 (1986-11-01), Anthony
patent: 5010159 (1991-04-01), Bank et al.
patent: 5063267 (1991-11-01), Hanneman et al.
patent: 5145723 (1992-09-01), Ballance et al.
patent: 5336532 (1994-08-01), Haluska et al.
patent: 5416190 (1995-05-01), Mine et al.
patent: 5486564 (1996-01-01), Mine et al.
patent: 5670596 (1997-09-01), Razzano et al.
Encyclopedia of Chemical Technology, 4th Edition, John Wiley & Sons, Inc., 1995, vol. 14, p. 177.

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