Fu S Chen

US Patent:

6417268, Jul 9, 2002

Filed:

Dec 6, 1999

Appl. No.:

09/455024

Inventors:

Huashi T. Zhang - South Pasadena CA
Baraka A. Kawawa - Bensalem PA
Fu Chen - Newtown PA

Assignee:

Hercules Incorporated - Wilmington DE

International Classification:

C08L 3100

US Classification:

524833, 524 55, 524831, 524832

Abstract:

Method for producing an hydrophobically associative polymer is provided which is characterized by forming a monomer solution comprising a surfactant, at least one hydrophobic ethylenically unsaturated monomer, at least one hydrophilic monomer selected from nonionic ethylenically monomers, cationic ethylenically unsaturated monomers, anionic ethylenically unsaturated monomers or mixtures thereof, and water; forming a salt solution comprising a multivalent salt and water; mixing the monomer solution and salt solution to form a mixed solution; and charging the mixed solution with an initiator, thereby polymerizing the monomers to form the hydrophobically associative polymer in a dispersion. Aqueous dispersion containing the hydrophobically associative polymer formed by the method. The aqueous dispersion containing the hydrophobically associative polymer may be used in a paint formulation, in a mobility control fluid useful in enhanced oil recovery, in a secondary or tertiary oil recovery system, in an enhanced oil recovery method, in a cementious composition, in an oil well drilling mud formulation, in a fracturing fluid formulation, in a wastewater treatment system, or in a dewatering sludge system.

US Patent:

20210315248, Oct 14, 2021

Filed:

Apr 10, 2020

Appl. No.:

16/846072

Inventors:

- Los Angeles CA, US
Fu Chen - Hacienda Heights CA, US

Assignee:

82 Labs Inc. - Los Angeles CA

International Classification:

A23L 33/105
A23L 2/56

Abstract:

A method of extracting includes crushing to form a crude powder. An ethanol/water solution is used in an extraction tank to create an extracted solution, which is de-colorized using activated carbon. The extracted solution is concentrated and filtered, after which beta-cyclodextrin is added, resulting in a guest/host molecular complex solution. This solution is spray dried, resulting in a DHM rich solution. A beverage additive may include a dihydromyricetin (DHM)/beta-cyclodextrin molecular complex, wherein the DHM/beta-cyclodextrin molecular complex is a guest/host molecular complex, wherein DHM is present in an amount of at least 35 w/w %, and wherein the beverage additive is completely water soluble.

US Patent:

20200246485, Aug 6, 2020

Filed:

Jan 31, 2019

Appl. No.:

15/929100

Inventors:

- Los Angeles CA, US
Fu Chen - Hacienda Heights CA, US

International Classification:

A61K 47/69
A61K 47/12
A61K 47/22
A61K 47/26
A61K 31/352
A61K 9/08

Abstract:

A method of generating a soluble dihydromyricetin formulation may involve generating an acidic solution with a pH ranging between 2-7 pH in a reaction vessel by combining an organic acid in an aqueous solution at a first temperature range. The method may then generate a solvent mixture by combining the acidic solution with a sugar. The method may then heat the solvent mixture to a boil and then adjust the heat to the first temperature range generating a heated solvent mixture. The method may then combine cyclodextrin and dihydromyricetin (DHM) with the heated solvent mixture forming a DHM solution. The method may then mix the DHM solution at a first speed for a first time interval in a mixer. The method may then heat a mixed DHM solution at a second temperature range for a second time interval.