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
1990-03-13
1992-04-28
Michl, Paul R.
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...
524447, C08K 334
Patent
active
051090511
ABSTRACT:
Disclosed are polyvinyl chloride and polyvinyl chloride type compositions using a titanium dioxide based whitening/opacifying package containing up to about 30 percent by weight of an aluminosilicate composition. In the whitening/opacifying package the aluminosilicate composition acts as a replacement for the same amount by weight of titanium dioxide. The whitening/opacifying package achieves a measure of overall appearance (DE* value), a Yellowness Index, and a percentage of light transmitted (opacity) which are substantially comparable or superior to those achieved by the same weight of pure titanium dioxide.
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Kroenke William J.
Williger Ervin J.
Cain Edward J.
Hudak Daniel J.
Michl Paul R.
Shust Nestor W.
The B. F. Goodrich Company
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