Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2008-06-03
2008-06-03
Sanders, Kriellion A (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C548S257000, C548S259000, C548S260000
Reexamination Certificate
active
07381762
ABSTRACT:
Hydroxybenzotriazole-based compounds are useful for ultraviolet light absorbing additives for a variety of applications. Such compounds have particular usefulness in various applications, including plastics, automotive, coatings, and food packaging applications. Such inventive compound exhibit excellent UV radiation absorbing activity, high thermal stability, excellent low fogging, low extraction/low migration rates, and high lightfastness levels, particularly when incorporated within certain media and/or on the surface of certain substrates, particularly polyesters, polyolefins, and polyurethanes. Block copolymer chain or chains consisting of poly(oxyalkylene) and/or aliphatic polyester segments can be conveniently tailored to increase the solubility or compatibility in different solvents or resins thereby permitting the introduction of such excellent UV absorbing chromophores within diverse media and/or or diverse substrates. Compositions and articles comprising such compounds are provided as well as methods for producing such inventive compounds.
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Lanning Robert M.
Milliken & Company
Moyer Terry T.
Sanders Kriellion A
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