摘要:
A wholly aromatic polyester comprising 40 to 75 mole % of constituent units (I), 8.5 to 30 mole % of constituent units (II), 8.5 to 30 mole % of constituent units (III), and 0.1 to 8 mole % of constituent units (IV) wherein Ar1 is 2,6-naphthalene; Ar2 is at least one member selected from among 1,2-phenylene, 1,3-phenylene, and 1,4-phenylene; Ar3 is at least one member selected from among 1,3-phenylene, 1,4-phenylene and residues of compounds each bearing two or more phenylene units linked to each other at the para positions; and Ar4 is 1,4-phenylene.
摘要:
Disclosed are antioxidant compositions comprising of: (I) an organomolybdenum compound; (2) an alkylated diphenylamine; and (3) a sulfur compound selected from the group consisting of: (a) thiadiazole; (b ) dithiocarbamate; and (c) mixtures of (a) and (b).
摘要:
An increase in specific antioxidant activity of extracts from rosemary (Rosemarinus officinalis) is obtained by the use of a blend of tetrafluoroethane and acetone in the extraction process. A blend of tetrafluoroethane, acetone and methanol improves total yield. A tetrafluoroethane and acetone blend has higher efficacy but comparatively lower yields. The methods yield a liquid and oily extract that is readily mixed with a liquid product such as soybean oil for addition to animal feeds and human food.
摘要:
Compositions and methods for inhibition of desulfurization in oligonucleotides comprising one or more phosphorothioate linkages. Antioxidants which partition into the aqueous phase of bi-phasic or multi-phasic topical pharmaceutical formulations inhibit desulfurization of phosphorothioate oligonucleotides, resulting in enhanced oligonucleotide stability.
摘要:
A composition is disclosed comprising: (A) a thermoplastic resin; and (B) a stabilizing amount of a blend of at least one sterically hindered phenol antioxidant, at least one aromatic amine and/or N, N'-substituted oxamide antioxidant, and at least one lactone antioxidant having a 3-phenylbenzofuran-2-one structure. A method is also disclosed for stabilizing a thermoplastic resin, wherein the method comprises adding thereto a stabilizing amount of a blend of at least one sterically hindered phenol antioxidant, at least one aromatic amines and/or N, N'-substituted oxamide antioxidant, and at least one lactone antioxidant having a 3-phenylbenzofuran-2-one structure.
摘要:
Es werden eine phospholipidische Zusammensetzung sowie ein Verfahren zur Herstellung der phospholipidischen Zusammensetzung, umfassend mindestens ein Phospholipid sowie einen Stabilisator, beschrieben, wobei die Zusammensetzung neben dem mindestens einen Phospholipid desweiteren als Stabilisator zerkleinerte Bestandteile und/oder einen Extrakt von Getreide enthält.
摘要:
A method for the preparation of aqueous analytical reagents containing water insoluble antioxidant dissolved in water miscible solvent through the use of an effective amount of carrier protein is provided.
摘要:
Der Zusatz von wäßrigen Dispersionen auf Basis bestimmter organischer Bindemittel in den Tragluftstrom beim Druckluftstrahlen führt zu einer guten Bindung der anfallenden Stäube bei guter Entsorgungsmöglichkeit und bietet einen gleichzeitig hochwirksamen vorläufigen Korrosionsschutz.
摘要:
2,3-Dihydrobenz-4-oxa-1-thiine der allgemeinen Formel I
in welcher die Substituenten und Indices folgende Bedeutung haben:
R 1 -R 3 Wasserstoff, Methyl, Methoxy oder, im Falle von R 2 und R 3 , gemeinsam einen annellierten Benzolring; R 4 Wasserstoff, einen m-wertigen aliphatischen Kohlenwasserstoffrest, der durch Schwefel unterbrochen sein und/oder Thiolgruppen als Substituenten tragen kann, oder, falls n gleich null ist, Halogen; X -O-, -S- oder -O-CO-; m 1 oder 2; n null oder 1.
Die Verbindungen I eignen sich als Antioxidantien für organische Materialien.
摘要:
The present invention deals with a sealant composition comprising a fibrillated fiber and a particulate material for automobile cooling system. This composition for stopping leaks comprises the combination of a fibrillated fiber such as fiber of poly (imino-1,4-phenylene-imino-terephtaloyl) with a particulate material, such as a seed meal.