公开(公告)号：US12285825B2

公开(公告)日：2025-04-29

申请号：US17622684

申请日：2020-02-27

Applicant: STEPAN COMPANY

Inventor： Liban Jirmo ,  Ronald A. Masters

IPC: B23K35/36 ,  B23K35/362

Abstract: Non-aqueous solder flux compositions are disclosed. In some aspects, the compositions comprise: (a) an alkylbenzene sulfonic acid or an acidic phosphate ester; and (b) an alkanolamide, an ethoxylated alkanolamide, an alkanolamine, or an ethoxylated amine. Methods of making solder flux compositions and methods of using the compositions as components of tacky solder fluxes are described. The solder flux compositions have excellent wettability, oxide removal capability, and rheological characteristics for high-speed, pick-and-place manufacturing processes and can be made from a simple combination of two components, thereby avoiding the need for solvents, polymeric thickeners, and other components of traditional tacky solder fluxes.

公开(公告)号：US20240237653A1

公开(公告)日：2024-07-18

申请号：US18561490

申请日：2022-07-20

Applicant: Stepan Company

Inventor： Eric M. WEBER ,  Andrea B.E. BRAYTON ,  Ryan K. TOTTEN

IPC: A01N59/02 ,  A01N25/02 ,  A01N33/08 ,  A01P15/00

CPC classification number: A01N59/02 ,  A01N25/02 ,  A01N33/08 ,  A01P15/00

Abstract: Water conditioner compositions useful for agricultural formulations are disclosed. The compositions comprise ammonium sulfate, water, an optional antifreeze agent, and a blend comprising a C12-C14 fatty amine oxide and a C8-C10 fatty amine oxide. Agricultural formulations that comprise a weak acid-based herbicide and the water conditioner compositions are also described. The fatty amine oxides are compatible with the levels of ammonium sulfate needed for effective water conditioning. The formulated water conditioners resist separation for weeks at elevated and cold temperatures. Compared with water conditioners that contain alkylpolyglucosides, those formulated with the fatty amine oxide blends have reduced foaming problems and excellent wetting properties at relatively low surfactant concentration, thus demonstrating performance and cost advantages.

公开(公告)号：US20240224992A1

公开(公告)日：2024-07-11

申请号：US18563480

申请日：2022-08-04

Applicant: Stepan Company

Inventor： Mona Marie KNOCK ,  Gregory P. DADO

IPC: A01N25/30

CPC classification number: A01N25/30

Abstract: Compositions comprising a nonionic surfactant and 0.1 to 30 wt. % of a low-mole alkoxylate are disclosed. Some low-mole alkoxylates have the formula




wherein R is a linear or branched C8-C16 alkyl or alkanolamide group, AO is oxypropylene (PO), oxyethylene (EO), or combinations thereof in random or block configuration, p has an average value within the range of 0.5 to 7, the average number of PO groups is within the range of 0.5 to 4, and the average number of EO groups is within the range of 0 to 3. Dilute aqueous solutions comprising a nonionic surfactant and a minor proportion of a low-mole alkoxylate wet hydrophobic surfaces more effectively, limit foaming, and degrease better than solutions comprising only the nonionic surfactant. The low-mole alkoxylates help to boost wetting performance in applications that require low-foaming surfactants, such as automatic dishwashing and laundry detergents.

公开(公告)号：US20240172753A1

公开(公告)日：2024-05-30

申请号：US18284085

申请日：2022-03-24

Applicant: Stepan Company

Inventor： Elodie SHAW ,  Rémi STEINER ,  Sandrine MONTHEIL ,  Christophe FLINOIS

IPC: A01N43/90 ,  A01N25/04 ,  A01N25/32 ,  A01P13/02

CPC classification number: A01N43/90 ,  A01N25/04 ,  A01N25/32 ,  A01P13/02

Abstract: Agricultural concentrates, particularly emulsifiable concentrates, are disclosed. The agricultural concentrates comprise a 3-alkoxy-4-aryl-5-oxopyrazoline compound, an emulsifier, and an adjuvant comprising one or more C6-C14 triglycerides. The adjuvants surprisingly enhance herbicidal efficacy of the oxopyrazoline compound while limiting its decomposition in the concentrates. Water-diluted formulations resist phase separation and control grassy weeds well without harming crops such as winter barley or winter wheat. The triglycerides are an efficacious, non-irritating, sustainable alternative to the phosphate esters now used as pinoxaden adjuvants.

公开(公告)号：US11970571B2

公开(公告)日：2024-04-30

申请号：US17510637

申请日：2021-10-26

Applicant: STEPAN COMPANY

Inventor： Michael E. O'Brien ,  Warren A. Kaplan ,  Sarah Wolek ,  Jennifer S. Westfall ,  Calvin Gang

IPC: C08G59/06 ,  C08G59/24 ,  C08G59/42 ,  C08G59/62 ,  C08G59/68 ,  C08G59/72 ,  C08G65/331 ,  C08L67/02 ,  C08L71/08 ,  G10K11/162

CPC classification number: C08G59/063 ,  C08G59/245 ,  C08G59/686 ,  C08G59/72 ,  C08L67/02 ,  C08L71/08 ,  C08G2170/00 ,  C08G2350/00

Abstract: Noise, vibration, or harshness (NVH) properties of an industrial or consumer product are reduced by incorporating therein an effective amount of a polyether- or polyester-epoxide polymer (PEEP) composition. The PEEP compositions are one-component or two-component reaction products of a polyepoxide compound and a polyol composition. The PEEP compositions have a glass-transition temperature within the range of −50° C. to 50° C. and a loss factor of at least 0.5 by ASTM D5992 over a temperature range of at least 15 Celsius degrees at one or more frequencies within the range of 0.1 to 10,000 Hz. The PEEP compositions provide NVH damping over a broad temperature range, have improved flexibility compared with conventional epoxy technologies, avoid amine and isocyanate reactants, and can be tailored to meet target specifications.

公开(公告)号：US20240057593A1

公开(公告)日：2024-02-22

申请号：US18371939

申请日：2023-09-22

Applicant: Stepan Company

Inventor： Christopher Lynch ,  Ronald A. Masters ,  Brandon Benko ,  Vanessa DeMarco ,  Alexander Nikoloff

IPC: A01N33/12 ,  A01P1/00 ,  A01N25/10 ,  C11D3/48 ,  C11D3/30 ,  C11D17/04

CPC classification number: A01N33/12 ,  A01P1/00 ,  A01N25/10 ,  C11D3/48 ,  C11D3/30 ,  C11D17/041

Abstract: An abrasion resistant biocidal composition is disclosed. The composition includes at least one biocidal quaternary ammonium compound, a polymeric component comprising at least one selected film-forming polymer, and at least one selected organic acid. In some embodiments, the film-forming polymer may be a polyvinylpyrrolidone or chitosan. The organic acid may be methanesulfonic acid, a selected carboxylic acid, a selected amino acid, or a combination thereof. When applied to a surface, the composition forms a film having enhanced durability without imparting poor surface feel or visual effects, and provides biocidal efficacy over an extended period of time.

公开(公告)号：US11898096B2

公开(公告)日：2024-02-13

申请号：US17617729

申请日：2020-06-15

Applicant: STEPAN COMPANY

Inventor： Douglas Kip Hillshafer ,  Sarah Wolek

IPC: C09K8/68 ,  C09K8/72 ,  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; (v) mixtures of any of (i) through (iv) with a half acid ester; and (vi) mixtures of polylactic acids or polyglycolic acids with a half acid ester. These easily synthesized classes of particulate polyester diverting agents degrade more effectively than polylactides under the conditions present in low-temperature wells and should help to enhance well productivity.

公开(公告)号：US11827836B2

公开(公告)日：2023-11-28

申请号：US17949433

申请日：2022-09-21

Applicant: STEPAN COMPANY

Inventor： Yongling Ginger Ren ,  Aaron Sanders ,  Jonathan Mohandessi

IPC: C09K8/035 ,  E21B21/06

CPC classification number: C09K8/035 ,  E21B21/06 ,  E21B21/063 ,  E21B21/065

Abstract: A demulsified composition comprising a clear oil phase comprising hydrocarbons, a clear brine phase comprising up to 5 wt. % of a diethanolamine-based C8-C18 alkanolamide demulsifying agent, and a water-wetted solid phase.

公开(公告)号：US20230272212A1

公开(公告)日：2023-08-31

申请号：US18144777

申请日：2023-05-08

Applicant: STEPAN COMPANY

Inventor： Warren A. KAPLAN ,  Zhenhua CUI ,  Sarah WOLEK

IPC: C08L67/03 ,  C08G18/42 ,  C08G18/73 ,  C08J9/14

CPC classification number: C08L67/03 ,  C08G18/73 ,  C08G18/4263 ,  C08J9/141 ,  C08G2110/0025 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2205/10 ,  C08L2205/03 ,  C08L2205/025

Abstract: A rigid PU or PU-PIR foam comprising a reaction product of water, a catalyst, a foam-stabilizing surfactant, a polyisocyanate, a blowing agent and a blend comprising: (a) 90 to 99 wt.% of an aromatic polyester polyol having a hydroxyl number within the range of 150 to 400 mg KOH/g; and (b) 1 to 10 wt.% of a fatty acid derivative selected from the group consisting of C8 to C18 fatty acid esters and C8 to C18 fatty acid amides.

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.