Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1995-06-29
1996-12-10
Dean, Ralph H.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524714, 524715, 524717, 524718, 524720, 524723, 524751, C08L 8305
Patent
active
055831788
ABSTRACT:
The present invention provides novel hydrosilation-curable compositions, the cure of which can be monitored visually, comprising: (1) an ethylenic compound; (2) a compound containing silicon-bonded-hydrogen groups; (3) a hydrosilation catalyst; and (4) one or more cure-indicating dyes with light absorption in the visible spectrum that exhibit a color change in the presence of a silicon-bonded-hydrogen compound and a precious metal hydrosilation catalyst. The cure-indicating dye provides the composition with an initial pre-cure color and a different post-cure color. As a result of this change in color, the state of cure of the composition can be visually monitored.
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Konings Mark S.
Oxman Joel D.
Tiers George V. D.
Vogel Dennis E.
Vogel Kim M.
Bjorkman Dale A.
Dean Ralph H.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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