Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...
Patent
1990-10-22
1992-09-08
McCamish, Marion E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Compositions to be polymerized by wave energy wherein said...
522 99, 528 15, 528 31, 528 32, C08F 250, C08F 480, G08G 7706, G08G 7712
Patent
active
051458861
ABSTRACT:
A process for the actinic radiation-activated addition reaction of a compound containing silicon-bonded hydrogen with a compound containing aliphatic unsaturation, said addition being referred to as hydrosilation, comprising using, as a platinum hydrosilation catalyst, a complex represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 independently represent hydrogen, an alkyl group, or an aryl group, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 independently represent an alkyl group, an aryl group, or an alkoxy group. The invention also includes novel compositions, capable of undergoing hydrosilation, containing the platinum complexes disclosed herein. An important application of the process and compositions of the invention is as a visible light curable impression material for dental applications.
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Boardman Larry D.
Oxman Joel D.
Berman Susan
Griswold Gary L.
Kirn Walter N.
McCamish Marion E.
Minnesota Mining and Manufacturing Company
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