Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-05-05
1978-02-07
Woodberry, Edward M.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 4575, 260 4595R, 260 4595C, 260 48, 260 51R, 260 57R, 260848, C08G 812
Patent
active
040726592
ABSTRACT:
A phenol/formaldehyde condensation product of a 4,4'-thio-bis-(dialkylphenol) and formaldehyde having a molecular weight of 1,000 to 4,000; a process for preparing such a condensation product by contacting 4,4'-thio-bis-(dialkylphenol) and a source of formaldehyde in the presence of a protonic acid catalyst; and the use of such a condensation product as an antioxidant in an olefin polymer or copolymer composition.
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Chem. Absts. 81:121646w, Bair et al., "Chemical and Physical Depletion of an Antioxidant from Polyethylene at Low Temp".
Chem. Absts. 81:64678g, Yoshiura et al., "Stabilized Polyolefin Compositions".
Chem. Absts. 84:45240d, Feichtinger et al., "4,4'-Thio-bis-(dialkylphenol)-Formaldehyde".
Birnkraut Hans-Walter
Feichtinger Hans
Kluy Werner
Lutze Siegfried
Ruhrchemie AG
Woodberry Edward M.
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