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
1992-09-09
1994-10-04
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...
524497, 252507, 252511, 252512, C08K 318, C08K 322, H01B 106, H01B 102
Patent
active
053527259
ABSTRACT:
Improved methods and polymer compositions are provided whereby ultraviolet radiation degradation of substrates formed of the compositions is attenuated. In accordance with the invention, ultraviolet scattering and absorbing particles having a particle size in the range of from about 0.001 micrometer to about 0.20 micrometer in diameter are dispersed in at least a surface layer of a polymer substrate.
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Kauffman James W.
Palmer Bruce R.
Stamatakis Penelope
DeWitt LaVonda
Hanegan Herbert M.
Kerr-McGee Chemical Corporation
Michl Paul R.
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