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
1994-02-14
1996-04-02
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...
524420, 524497, 252511, 252512, 252507, C08K 318, C08K 322, H01B 106
Patent
active
055041345
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 R.
Hanegan Herbert M.
Kerr-McGee Chemical Corporation
Michl Paul R.
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