公开(公告)号：US12083205B2

公开(公告)日：2024-09-10

申请号：US17145999

申请日：2021-01-11

Applicant: Stepan Company

Inventor： James A. Faunce ,  Renata A. Butikas ,  Randal J. Bernhardt ,  Sarah E. Kovach ,  Teresa Germain ,  Patrick Shane Wolfe ,  Leonard Frank Zaporowski ,  Anatoliy A. Dameshek

IPC: A61K8/41 ,  A61K8/37 ,  A61K8/9789 ,  A61Q5/02

CPC classification number: A61K8/416 ,  A61K8/37 ,  A61K8/9789 ,  A61Q5/02 ,  A61K2800/596

Abstract: Esterquat compositions are disclosed that comprise, based on the weight of the composition, 0% to about 70% by weight of a solvent, and about 30% to 100% by weight of a mixture comprising about 50% to about 80% by weight, based on the weight of the mixture, of esterquats and about 20% to about 50% by weight, based on the weight of the mixture, of mono- and diglycerides. The esterquat compositions can be prepared by the direct esterification of a natural oil with an alkanolamine, followed by quaternization in the presence of the solvent. The esterquat compositions can be formulated into hair care compositions that provide improved wet and dry combing properties.

公开(公告)号：US20240141225A1

公开(公告)日：2024-05-02

申请号：US18396909

申请日：2023-12-27

Applicant: Stepan Company

Inventor： Douglas Kip Hillshafer ,  Sarah Wolek

IPC: C09K8/72 ,  C09K8/68 ,  C09K8/88

CPC classification number: C09K8/725 ,  C09K8/68 ,  C09K8/885 ,  C09K2208/18

Abstract: A hydraulic fracturing method for recovering oil from a low-temperature subterranean oil formation is disclosed. Before, during, or after inducing hydraulic fracturing within the formation, a particulate, degradable polyester diverting agent is introduced into the formation in an amount effective to improve oil production from the formation. The diverting agent is allowed to degrade, and oil is recovered. The diverting agent has a melting point greater than the average temperature of the formation and is selected from: (i) ethylene glycol succinates; (ii) acid-terminated ethylene glycol succinates; (iii) acid-terminated polyglycolic acids; (iv) acid-terminated polylactic acids; and (v) mixtures of any of (i) through (iv) with a half acid ester.

公开(公告)号：US11939434B2

公开(公告)日：2024-03-26

申请号：US16836544

申请日：2020-03-31

Applicant: STEPAN COMPANY

Inventor： Timothy A. Boebel ,  Xue Min Dong ,  E. Carolina Rojas ,  Renee Luka ,  Gary Luebke ,  Paul W. Knox

IPC: C08J3/09 ,  A01N25/04 ,  A01N25/14 ,  A01N37/34 ,  A01N43/50 ,  A01N43/653 ,  A01N43/70 ,  C08G65/26 ,  C08L71/02 ,  C09D5/02

CPC classification number: C08J3/095 ,  A01N25/04 ,  A01N25/14 ,  A01N37/34 ,  A01N43/50 ,  A01N43/653 ,  A01N43/70 ,  C08G65/2609 ,  C08G65/2612 ,  C08G65/2624 ,  C08G65/2627 ,  C08G65/263 ,  C08G65/2636 ,  C08L71/02 ,  C09D5/022 ,  C09D5/027 ,  C08J2371/02 ,  C08J2421/02 ,  C08L2201/54

Abstract: Copolymers comprising recurring units of a phenyl glycidyl ether and alkylene oxides are disclosed. Some of the copolymers comprise a di- or polyfunctional nucleophilic initiator and recurring units of the phenyl glycidyl ether and an alkylene oxide. The di- or polyfunctional nucleophilic initiator is an alcohol, phenol, amine, thiol, thiophenol, sulfinic acid, or deprotonated species thereof. Other copolymers comprise a monofunctional nucleophilic initiator selected from thiols, thiophenols, aralkylated phenols, sulfinic acids, secondary amines, C10-C20 terpene alcohols, and deprotonated species thereof. Pigments dispersions comprising the copolymers are also disclosed. The copolymers meet the growing needs of the industry with their ease of manufacture, diverse structures, and desirable performance attributes for dispersing a wide range of organic and inorganic pigments. Agricultural applications for the copolymers are also disclosed.

公开(公告)号：US11919993B2

公开(公告)日：2024-03-05

申请号：US16936006

申请日：2020-07-22

Applicant: Stepan Company

Inventor： Michael E. O'Brien ,  Jeffrey R. Janos

IPC: C08G18/42 ,  C08G18/76 ,  C08G18/78 ,  C09D175/06

CPC classification number: C08G18/4219 ,  C08G18/4241 ,  C08G18/7664 ,  C08G18/7831 ,  C09D175/06 ,  C08G2150/00

Abstract: Polyester polyols for use in low-VOC polyurethane compositions are disclosed. The polyester polyols are the reaction product of at least one aliphatic polycarboxylic acid, at least one alkoxylated polyalcohol having a functionality of 2.0 or greater, and one or more polyalcohols other than an alkoxylated polyalcohol. The polyester polyols can be formulated into polyurethane compositions to obtain a polyurethane having a low VOC content. The polyurethane composition is particularly suitable for polyurethane coating applications.

公开(公告)号：US11879093B2

公开(公告)日：2024-01-23

申请号：US17622678

申请日：2020-07-29

Applicant: STEPAN COMPANY

Inventor： Maxime Feche ,  Mathieu Pepin ,  Elodie Shaw ,  Laure Canal ,  José Santiago ,  Milan Bartos ,  Alla Crabtree

IPC: C09K8/54 ,  C23F11/14

CPC classification number: C09K8/54 ,  C23F11/141 ,  C09K2208/32

Abstract: A method for inhibiting corrosion of pipelines and other metal surfaces, particularly those used in the oil-and-gas industry, is disclosed. The method comprises treating a brine-exposed metal surface with a film-forming composition. The composition comprises a quaternary surfactant, which is made by reacting a polyalkylene glycol (PAG), a haloalkanoic acid, and a tertiary fatty amine that optionally incorporates amide or ester functionality. The surfactant comprises a PAG monoester quat and a PAG diester diquat and may have other components. The quaternary surfactants provide good corrosion protection and can partition effectively from an oily phase into a brine phase in the absence of agitation. The surfactants are easy to synthesize economically and have structures that can be tailored to meet local HLB requirements.

公开(公告)号：US20230383170A1

公开(公告)日：2023-11-30

申请号：US18233778

申请日：2023-08-14

Applicant: STEPAN COMPANY

Inventor： Rachael Anne COLE ,  Pradyumna Avinash DESHPANDE ,  Chandrashekhar Yeshwant KHANDEKAR ,  Tore NORDVIK ,  Loic REGNAULT DE LA MOTHE ,  Elodie SHAW ,  Laure CANAL ,  Marine DUGAND ,  José SANTIAGO

IPC: C09K8/524 ,  C08F8/46 ,  C08F210/10 ,  C08G81/02 ,  C08G83/00 ,  C08F220/28

CPC classification number: C09K8/524 ,  C08F8/46 ,  C08F210/10 ,  C08G81/027 ,  C08G83/004 ,  C08F220/28 ,  C08F220/281

Abstract: Compositions may include those of the formula: (I) wherein R1 is an alkyl chain having a carbon number in the range of greater than 40 to 200, R2 is a multiester, R3 is hydrogen, an ion, or an alkyl chain having a carbon number in the range of 1 to 200, m is an integer selected from 0 to 4, and n is an integer selected from the range of 0 to 4, wherein the sum of m and n is 1 or greater. Compositions may include a reaction product of a polyisobutylene-substituted succinic anhydride and a hydroxy-functional dendrimer, wherein the molar ratio of polyisobutylene-substituted succinic anhydride to hydroxy-functional dendrimer is within the range of 10:1 to 30:1.

公开(公告)号：US20230272267A1

公开(公告)日：2023-08-31

申请号：US18018139

申请日：2021-06-24

Applicant: Stepan Company

Inventor： Alhad PHATAK ,  Yonglin REN ,  Brian SEYMOUR-LOYA ,  Aaron SANDERS

IPC: C09K8/80

CPC classification number: C09K8/80 ,  C09K2208/28

Abstract: A hydraulic fracturing method is disclosed. A small proportion of a nonionic surfactant is used in combination with an acrylamide polymer emulsion friction reducer, the proppant, and the base water to boost the viscosity of the fracturing fluid. The nonionic surfactant has a calculated HLB within the range of 10 to 17. The nonionic surfactants include selected aralkylated phenol ethoxylates, amine or amidoamine ethoxylates, mixed EO/PO alcohol alkoxylates, ethoxylated alcohols, ethoxylated amides, and alkylphenol ethoxylates. The nonionic surfactant boosts the viscosity of the fracturing fluid, promotes proppant transfer, and enables more-efficient hydrocarbon production.

公开(公告)号：US11686575B2

公开(公告)日：2023-06-27

申请号：US17322225

申请日：2021-05-17

Applicant: STEPAN COMPANY

Inventor： Thomas K. Johnson ,  David J. Norberg ,  Daniel Yocius

IPC: G01B11/25 ,  B29C44/60 ,  G01B11/06 ,  G01B11/22 ,  G01B11/30 ,  G01B17/08

CPC classification number: G01B11/2522 ,  B29C44/60 ,  G01B11/0608 ,  G01B11/22 ,  G01B11/306 ,  G01B17/08

Abstract: Methods and systems for determining the integrity of a manufactured board are disclosed. An example system includes a testing platform configured to secure the manufactured board, a sensor configured to measure a parameter corresponding to a flatness of a surface of the board, and a controller. The controller is configured to identify regions on the surface corresponding to one of a peak or a valley based on the parameter, and calculate a score representing the integrity of the manufactured board based on the identified peaks and valleys. The controller adjusts a flow rate, a pressure, a temperature, and position of a deposited substance in a manufacturing process based on a comparison with a height of the peak and/or a depth of the valley to stored peak heights and/or valley depths. In some examples, a mechanical tester determines a compressive strength and a density of the board at the identified regions.

公开(公告)号：US20230018007A1

公开(公告)日：2023-01-19

申请号：US17942787

申请日：2022-09-12

Applicant: Stepan Company

Inventor： Kelly Buchek ,  Eric M. Weber ,  Elodie Shaw ,  Krista Turpin ,  Andrea B.E. Brayton ,  Julien Guillan ,  Dave R. Allen

IPC: A01N25/30 ,  A01N57/20

Abstract: Agricultural compositions that employ structured surfactant systems to suspend water-insoluble or sparingly soluble agricultural actives and/or adjuvants are disclosed. Also disclosed are agricultural compositions that combine structured surfactant systems with electrolytes to form structured electrolyte compositions. The structured surfactant systems, both with and without electrolyte, suspend one or more agricultural actives and/or crop oil and non-aqueous adjuvants to provide agricultural compositions that can combine combinations of actives in a single, stable composition.

公开(公告)号：US11543810B2

公开(公告)日：2023-01-03

申请号：US17542087

申请日：2021-12-03

Applicant: Stepan Company

Inventor： Daniel Yocius ,  David J. Norberg ,  Sean O'Cuanaigh

IPC: G05B19/418 ,  C08G18/08 ,  G05B1/11 ,  G05B13/02

Abstract: Methods and systems for manufacturing a foam board system are disclosed. In some examples, a system includes an applicator to distribute one or more fluids onto a substrate. One or more sensors configured to measure one or more characteristics of the one or more fluids. A control circuitry is configured to compare the one or more measured characteristics to one or more threshold characteristics, and to adjust one or more operating parameters of the system in response to a characteristic of the one or more measured characteristics falling outside a threshold of the one or more threshold characteristics.