Baker Hughes Corporation

Other

Muslim D Shahid

Glenn L Roof

A treatment for acid related gastrointestinal disorders. The methods and compounds described include gastric acid secretion inhibitors in combination with alpha lipoic acid (ALA) or related compounds. ALA is not known as a treatment for acid related gastrointestinal disorders; however, when combined with certain compounds used in the treatment of acid related gastrointestinal disorders, ALA significantly improves existing treatments.

Compositions and methods for the treatment of acid-related gastrointestinal disorders containing a dithiolane compound and a gastric acid secretion inhibitor

The present disclosure describes a treatment for acid related gastrointestinal disorders. The compounds described herein are known gastric acid secretion inhibitors in combination with alpha lipoic acid (ALA) or related compounds. ALA is not known as a treatment for acid related gastrointestinal disorders, however, ALA, when combined as described in the present disclosure with certain compounds used in the treatment of acid related gastrointestinal disorders, significantly improves existing treatments.

It has been discovered that the polymerization of diene compounds, such as butadiene, may be inhibited by the addition of a composition that contains at least one hindered or unhindered phenol, in combination with low nitrogen content component which is a stable nitroxide and/or a hydroxylamine substituted with at least one alkyl, aryl or alkylaryl group; and/or a second, different hindered or unhindered phenol, and optionally a hydrogen transfer agent.

Inhibition of popcorn polymer growth

It has been discovered that the polymerization of unsaturated compounds, such as butadiene, may be inhibited by the addition of a diene and/or alkanolamine inhibitor. The inhibitor is believed to catalytically destroy peroxides present, such as hydrogen peroxide, which may be present in trace amounts. Particularly useful inhibitors include, but are not limited to, ethylenediamine (EDA) and monoethanolamine (MEA).

Use of diamines and alkanolamines to inhibit unsaturated monomer polymerization

The present invention provides compositions and methods inhibiting polymerization of vinyl aromatic compounds comprising a bisphenol compound and an oxidized p-phenylenediamine. In a specific, non-limiting embodiment, the polymerization of the vinyl aromatic compound styrene is inhibited by a composition comprising the bisphenol compound 4,4&prime;-methylenebis(2,6-di-tert-butyphenol) and the oxidized p-phenylenediamine compound N-phenyl-N&prime;-methyl-benzoquinonediimide.

Methods and compositions for inhibiting vinyl aromatic monomer polymerization

Vinyl monomer polymerization inhibition using hindered hydroxylamines

It has been discovered that the polymerization of vinyl aromatic compounds, such as styrene, may be inhibited by the addition of a composition that contains an alkyl-dihydroxyarene, a hydrogen transfer agent, and a stable nitroxide. In another, preferred embodiment of the invention, these three components are blended in an organic amine.

Styrene monomer polymerization inhibition using substituted dihydroxyarenes and nitroxides

The present invention provides substituted phenols which are effective to inhibit polymer formation during the manufacture of acrylonitrile. Preferred substituted phenols are (a) hindered phenols, nonhindered phenols, and partially hindered phenols, or (b) combinations of hindered phenols with nonhindered or partially hindered phenols. A most preferred substituted phenol is p-nitrosophenol. In a preferred embodiment, the substituted phenols (with the exception of p-nitrosophenol) are combined with hydrogen transfer agents.

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Houston, TX, United States of America

Muslim D Shahid