公开(公告)号：US20230068208A1

公开(公告)日：2023-03-02

申请号：US17976315

申请日：2022-10-28

Applicant: Stepan Company

Inventor： Dennis S. Murphy ,  Kathryn E. Merwin ,  Teresa Germain ,  Patrick Shane Wolfe

IPC: C11D1/62 ,  C11D3/00 ,  C11D3/43 ,  C11D3/32 ,  C11D3/37 ,  C11D11/00

Abstract: Clear, stable concentrated liquid compositions are disclosed that comprise from 30% to 90% by weight of an esterquat active, and from 10% to 50% by weight of a particular solvent system. The esterquat active is the quaternized reaction product of a fatty acyl source having an Iodine Value of 40 to 130 reacted with an alkanolamine at a fatty acyl to alkanolamine molar ratio of 1.0:1 to 2.2:1. The concentrated liquid compositions have a VOC content of less than 5%, a Biorenewable Carbon Index (BCI) of at least 20 and a viscosity of less than 5000 cP at 25° C. The concentrated liquid compositions can be easily diluted in water to form stable aqueous dispersions.

公开(公告)号：US11560530B2

公开(公告)日：2023-01-24

申请号：US16374819

申请日：2019-04-04

Applicant: Stepan Company

Inventor： Randal J. Bernhardt ,  Wilma Gorman ,  Ronald Masters

IPC: C11D1/14 ,  A01N25/30 ,  C07C305/10 ,  A01N25/00

Abstract: Surfactant compositions comprising an alkoxylate, a sulfate, or ether sulfate of a C10-C12 monounsaturated alcohol are disclosed. The alkoxylate, sulfate, or ether sulfate may derive from undecylenic acid or undecylenic alcohol. Compared with their saturated analogs, the monounsaturated alkoxylates, sulfates, and ether sulfates are less irritating, making them valuable for personal care, laundry, cleaners, and other household applications. Microscopy studies show that the alkoxylates, sulfates, and ether sulfates have favorable phase behavior over a wide range of actives levels, expanding opportunities for products with greater compaction. When combined with cationic surfactants, the alkoxylates, sulfates, and ether sulfates exhibit synergy, and they have improved solubility compared with their saturated analogs. The surfactants find value for the personal care, laundry and cleaning, emulsion polymerization, agricultural products, oilfield applications, and specialty foams industries.

公开(公告)号：US11439145B2

公开(公告)日：2022-09-13

申请号：US16790445

申请日：2020-02-13

Applicant: Stepan Company

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

IPC: A01N25/30 ,  A01N57/20 ,  C05G3/60 ,  A01N25/04

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：US20220079858A1

公开(公告)日：2022-03-17

申请号：US17519900

申请日：2021-11-05

Applicant: Stepan Company

Inventor： James A. Faunce ,  Renata A. Butikas ,  Sarah E. Kovach ,  Teresa Germain ,  Patrick Shane Wolfe ,  Anatoliy A. Dameshek ,  Dennis S. Murphy

IPC: A61K8/41 ,  A61K8/37 ,  A61Q5/12 ,  A61Q19/00

Abstract: Compositions comprising at least one esteramine active are disclosed in which the esteramine provides conditioning, softening, and/or cleaning properties. The compositions are useful for hair care, as well as in other applications, such as cleaning compositions, fabric softening compositions, and skin care compositions. Also disclosed are esteramine compositions that comprise a synergistic mixture of at least one esteramine and mono- and di-glycerides that provides better wet and dry combing than either the esteramine or mono- and di-glycerides alone. The synergistic mixture comprises about 50% to about 90% by weight esteramines and about 10% to about 50% by weight mono- and diglycerides.

公开(公告)号：US20210403969A1

公开(公告)日：2021-12-30

申请号：US17472979

申请日：2021-09-13

Applicant: Stepan Company

Inventor： Nattaporn Lohitharn

IPC: C12P19/44 ,  C12P7/64

Abstract: Provided is a method for improving the yield of rhamnolipids comprising culturing in medium containing a triglyceride containing oil and sweetener as a carbon source.

公开(公告)号：US11180588B2

公开(公告)日：2021-11-23

申请号：US16475343

申请日：2016-12-30

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

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：US11142729B2

公开(公告)日：2021-10-12

申请号：US16536863

申请日：2019-08-09

Applicant: Stepan Company

Inventor： Brian Holland ,  Randal J. Bernhardt ,  Branko Sajic ,  Rick Tabor

IPC: C11D1/00 ,  C11D11/00 ,  C11D1/14 ,  C11D1/22 ,  C11D1/29 ,  C11D1/34 ,  C11D1/72 ,  C11D1/75 ,  C11D1/83 ,  C11D1/90 ,  C11D1/92 ,  C11D3/30 ,  C11D3/386

Abstract: Detergents useful for cold-water cleaning and mid-chain headgroup and alkylene-bridged surfactants useful therein are disclosed. The mid-chain headgroup surfactant has a C14-C30 alkyl chain and a polar group bonded to a central zone carbon of the alkyl chain. The alkylene-bridged surfactant has a C12-C18 alkyl chain, a polar group, and a C1-C2 alkylene group bonded to the polar group and a central zone carbon of the C12-C18 alkyl chain. Preferred surfactants in these classes are alcohol sulfates, alcohol ethoxylates, ether sulfates, sulfonates, arylsulfonates, alcohol phosphates, amine oxides, quaterniums, betaines, and sulfobetaines. Surprisingly, detergents formulated with the surfactants provide outstanding cold-water performance in removing greasy stains such as bacon grease, butter, cooked beef fat, or beef tallow from soiled articles.

公开(公告)号：US10989028B2

公开(公告)日：2021-04-27

申请号：US16781608

申请日：2020-02-04

Applicant: Stepan Company

Inventor： Aaron Sanders ,  Gregory P. Dado ,  Brian Holland ,  Xue Min Dong ,  E. Carolina Rojas

IPC: E21B43/24 ,  C09K8/584 ,  E21B43/30

Abstract: Methods for making efficient use of steam in a steam-assisted gravity drainage (SAGD) process for recovering heavy oils from tar sands and similar petroleum deposits are disclosed. The methods utilize a surfactant to generate steam foam in ways that maximize efficient use of steam. In some aspects, steam foam is used in water layers or gas caps that reside above steam chambers to prevent loss of steam from the steam chamber. The predominant use of relatively dry steam in SAGD processes makes it challenging to find ways to introduce surfactants and generate steam foam. However, decreasing the mobility of the steam by converting at least some of it to foam allows the wellbore and steam chambers above the injection site to be more fully developed, provides for more effective heat transfer to the heavy oil and rock, improves production, and allows recovery of the heavy oil with a minimum amount of steam usage.

公开(公告)号：US20200347245A1

公开(公告)日：2020-11-05

申请号：US16929420

申请日：2020-07-15

Applicant: STEPAN COMPANY

Inventor： David R. ALLEN ,  Marcos ALONSO ,  Mary BEDDAOUI ,  Randal J. BERNHARDT ,  Aaron BROWN ,  Scott DILLAVOU ,  Xue Min DONG ,  Wilma GORMAN ,  John C. HUTCHISON ,  Gary LUEBKE ,  Renee LUKA ,  Franz LUXEM ,  Andrew D. MALEC ,  Ronald A. MASTERS ,  Dennis S. MURPHY ,  Nicholas PENDLETON ,  Irma RYKLIN ,  Patti SKELTON ,  Brian SOOK ,  Chris SPAULDING ,  Krista TURPIN ,  Gregory WALLACE ,  Michael WIESTER ,  Patrick Shane WOLFE

IPC: C09D7/45 ,  A01N25/30 ,  A61K8/46 ,  C11D1/14 ,  C11D1/29 ,  B01F17/00 ,  C04B38/10 ,  C07C29/147 ,  C07C41/06 ,  C07C303/14 ,  C07C303/32 ,  C07C309/08 ,  C07C309/10 ,  C11D1/37 ,  C11D1/66

Abstract: Sulfate and sulfonate derivatives of unsaturated fatty alcohols, processes for making them, and methods of using them are disclosed. In one aspect, a monounsaturated fatty alcohol composition is made by reducing a metathesis-derived monounsaturated alkyl ester. The fatty alcohol composition is then converted to a sulfate or sulfonate derivative by one or more of alkoxylation, sulfation, sulfonation, and sulfitation. Of particular interest are the sulfate and ether sulfate derivatives. Microscopy studies indicate that the unsaturated sodium sulfates in particular have a lamellar phase that should enable formulation at high actives levels. Sulfate compositions comprising 40 to 60 wt. % of a monounsaturated fatty primary alcohol sulfate and 40 to 60 wt. % of a secondary hydroxyalkyl primary alcohol sulfate are also disclosed. The derivatives and sulfate compositions are valuable for many end-use applications, including, for example, agricultural dispersants, water-soluble herbicides, anionic emulsifiers for agricultural use, hard surface cleaners, light-duty liquid detergents, personal cleansers, gas well foamers for oilfield applications, laundry detergents, enhanced oil recovery compositions, latex paints, and specialty foams.

公开(公告)号：US20200270510A1

公开(公告)日：2020-08-27

申请号：US15931665

申请日：2020-05-14

Applicant: STEPAN COMPANY

Inventor： John C. HUTCHISON

IPC: C09K8/536 ,  C09K8/86 ,  C09K8/60

Abstract: Flowback aid mixtures and oil-in-water microemulsions produced by combining an aqueous brine with the flowback aid mixtures are disclosed. The flowback aid mixture comprises an oil, a fatty alcohol ethoxylate, and a quaternized fatty amine ethoxylate. The amount of oil is less than or equal to 12 wt. % based on the amount of flowback aid mixture. The microemulsions have a surface tension at 25° C. less than 30 mN/m and a Z-average particle size as determined by dynamic light scattering at 25° C. of less than or equal to 10 nm. Also disclosed are processes that utilize the flowback aid mixtures. In one process, the mixture is introduced into a subterranean formation and is combined prior to or during its introduction into the formation with a formation brine, process water, or both to give the microemulsion. In one hydraulic fracturing process for recovering gas, oil, or both, a fracturing fluid and the flowback aid are co-injected into a subterranean formation to give the microemulsion.