Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Patent
1997-05-15
1999-04-06
Dawson, Robert
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
525477, C08G 7706
Patent
active
058919783
ABSTRACT:
A curable composition which comprises (A) an organosilicon compound having at least one silicon-bonded alkoxy group per molecule and on average at least three hydroxyl and/or alkoxy groups bonded to silicon per molecule; (B) a catalyst component characterized in that the catalyst component is according to the formula ##STR1## wherein R.sup.1 and R.sup.2 each independently represent a pentahapto ligand, R.sup.3 represents a fluoroaromatic ligand having a fluorine atom bonded in the ortho position relative to the M-ligand bond, R.sup.4 represents a group R.sup.3 or a monovalent alkyl, alkenyl, alkoxy, alkoxy alkoxy, halogen, aryl, halo substituted aryl, organosilicon or organosiloxane group and M represents Ti, Zr or Hf, which is curable by exposure by UV radiation; and optionally (C) an organo-silicon having two of silicon-bonded hydroxyl or alkoxy groups per molecule, wherein the organo-silicone is selected from the group consisting of organopolysiloxane and organosilicon-organic copolymer.
REFERENCES:
patent: 4525565 (1985-06-01), Laisney et al.
patent: 5208300 (1993-05-01), Krahnke et al.
patent: 5473026 (1995-12-01), Strong et al.
patent: 5767217 (1998-06-01), Choukroun et al.
Brown Scott S. D.
Merlin Patrick J.
Taylor Richard G.
Dawson Robert
Dow Corning Ltd.
Lu-Rutt Caixia
Scaduto Patricia M.
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