Si Group, Inc.

Kelly S Chichak

Elliott West Shanklin

Joseph T Doane

Brian Christofel

Ricky Biittig

Cornelius Haase

Philip David Atwood

Allyson Staats

Jim Webb

In one embodiment, an alkylphenol copolymer is disclosed wherein the copolymer comprises at least one alkylphenol monomer and the alkylphenol copolymer exhibits the following: an oscillation displacement Θ of greater than 0 at a temperature of −5° C. in a first oscillation temperature sweep and an oscillation displacement Θ in a second oscillation temperature sweep within 25% of the oscillation displacement Θ in the first oscillation temperature sweep at a temperature of −5° C. In a further embodiment, a petroleum composition is disclosed wherein the composition comprises a petroleum source and a macromolecular compound wherein the macromolecular compound exhibits the following: an oscillation displacement Θ of greater than 0 at a temperature of −10° C. in a first oscillation temperature sweep, and an oscillation displacement Θ in a second oscillation temperature sweep within 25% of the oscillation displacement Θ in the first oscillation temperature sweep at a temperature of −10° C.

Thermally stable macromolecular compound and petroleum composition including the same

This invention relates to a process for preparing a calixarene compound by reacting a phenolic compound and an aldehyde in the presence of at least one nitrogen-containing base as a catalyst to form the calixarene compound. The invention also relates to processes for high-yield, high solid-content production of a calixarene compound, with high selectivity toward a high-purity calix[8]arene compound, without carrying out a recrystallization step.

Processes for preparing calixarenes

In one embodiment, an alkylphenol copolymer is disclosed wherein the copolymer comprises at least one alkylphenol monomer and the alkylphenol copolymer exhibits the following: an oscillation displacement &#x398; of greater than 0 at a temperature of &#x2212;5&#xb0; C. in a first oscillation temperature sweep and an oscillation displacement &#x398; in a second oscillation temperature sweep within 25% of the oscillation displacement &#x398; in the first oscillation temperature sweep at a temperature of &#x2212;5&#xb0; C. In a further embodiment, a petroleum composition is disclosed wherein the composition comprises a petroleum source and a macromolecular compound wherein the macromolecular compound exhibits the following: an oscillation displacement &#x398; of greater than 0 at a temperature of &#x2212;10&#xb0; C. in a first oscillation temperature sweep, and an oscillation displacement &#x398; in a second oscillation temperature sweep within 25% of the oscillation displacement &#x398; in the first oscillation temperature sweep at a temperature of &#x2212;10&#xb0; C.

An alkylphenol copolymer, such as for use in a petroleum composition, is provided. The alkylphenol copolymer has at least the following repeating unit (I):  The present invention also provides a method for forming the alkylphenol copolymer containing the aforementioned repeating unit (I) as well as a method for forming a monomer for forming repeating unit (I).

Alkylphenol copolymer

An alkylphenol copolymer, such as for use in a petroleum composition, is provided. The alkylphenol copolymer has the following repeating units (A) and (B): wherein,

An asphaltene dispersant composition is provided. The composition may contain an alkylphenol copolymer having the following repeating units (A) and (B): wherein,

Asphaltene dispersant composition

A paraffin inhibitor composition that exhibits stable properties at low temperature is provided. The composition may contain, for instance, an alkylphenol copolymer having the following repeating units (A) and (B): wherein,

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Halfmoon, NY, United States of America

Kelly S Chichak