Compositions – Reductive bleachant – deoxidant – reductant – or generative – Deoxidant or oxygen scavenging
Patent
1997-05-16
2000-10-31
Lovering, Richard D.
Compositions
Reductive bleachant, deoxidant, reductant, or generative
Deoxidant or oxygen scavenging
252600, 522 20, 522 29, 522 36, 568322, 568323, 568326, C09K 300
Patent
active
061397709
ABSTRACT:
An oxygen scavenging composition or system is provided comprising an oxygen scavenging material, a photoinitiator, and at least one catalyst effective in catalyzing an oxygen scavenging reaction, wherein the photoinitiator comprises a benzophenone derivative containing at least two benzophenone moieties. A film, a multi-phase composition, a multi-layer composition, a multi-layer film, an article comprising the oxygen scavenging composition, a method for preparing the oxygen scavenging composition, and a method for scavenging oxygen are also provided. Non-extractable benzophenone derivative photoinitiators and methods for preparing same are also provided.
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C. David et al., "Photolysis of Polyvinylbenzophenone", Polymer, 10 (1969), pp. 21-27.
J. Barton et al., "Polymerization of Vinyl Monomers Photoinitiated by Benzoylated Polystyrene", Makromol. Chem. 179 (1978), pp. 2937-2943.
Cryovac U.S. application No. 08/857,226, filed May 16, 1997, entitled "Low Migratory Photoinitiators for Oxygen Scavenging Compositions".
Ching Ta Yen
Goodrich Joseph L.
Katsumoto Kiyoshi
Speer Drew Ve
Chevron Chemical Company LLC
Cryovac Inc.
Lovering Richard D.
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