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公开(公告)号：US20230242475A1
公开(公告)日：2023-08-03
申请号：US18120697
申请日：2023-03-13
Applicant: Stepan Company
Inventor： Dennis S. Murphy , Renata A. Butikas , Patrick Shane Wolfe , Matthew V. Vollmer
IPC: C07C229/24 , C07C227/18 , A61K8/44 , A61Q5/12
CPC classification number: C07C229/24 , A61K8/44 , A61Q5/12 , C07C227/18
Abstract: Compositions comprising at least one dialkyl amino acid ester salt as a cationic active are disclosed. The compositions are useful for hair care, as well as in other applications, such as cleaning compositions, fabric softening compositions, and skin care compositions. The dialkyl amino acid ester salts are derived from the esterification reaction of an amino acid having at least two carboxylic acid groups with a fatty alcohol, wherein the amine group of the amino acid is protonated with an acid. The compositions may further include a glyceride component comprising monoglycerides, diglycerides, or a combination thereof.
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公开(公告)号：US11667821B2
公开(公告)日：2023-06-06
申请号：US17348199
申请日：2021-06-15
Applicant: STEPAN COMPANY
Inventor： Michael E. O'Brien , Warren A. Kaplan , Jennifer S. Westfall
IPC: C09J163/04 , C08G59/42 , C08G59/62 , C09J163/00
CPC classification number: C09J163/04
Abstract: One-component (1K) adhesive compositions (“PEEP” compositions) and a process for making them are disclosed. A polyepoxide is reacted with a polyether polyol composition, a polyester polyol composition, or both in the presence of a heat-activated Lewis acid catalyst at a temperature within the range of 100° C. to 220° C. for a time effective to cure the adhesive. The compositions are storage-stable under ambient conditions. Compared with conventional epoxy compositions, the 1K PEEP compositions offer improved room temperature lap shear strength, better resilience, and higher elongation. The 1K PEEP systems deliver a desirable balance of physical and mechanical properties while avoiding polyisocyanates and polyamine crosslinkers.
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公开(公告)号：US20220411567A1
公开(公告)日：2022-12-29
申请号：US17775249
申请日：2020-11-05
Applicant: STEPAN COMPANY
Inventor： Carl William LISKEY , Warren A. KAPLAN , Daniel YOCIUS
Abstract: Rigid polyurethane or polyisocyanurate foams, polyester polyols used to produce them, and methods for formulating the foams are disclosed. The foams comprise a reaction product of a polyisocyanate, a polyester polyol, water, a surfactant, a catalyst and optional ingredients. The polyester polyols comprise a phthalimide-containing polyacid, a phthalimide-containing polyol, or a combination thereof. Rigid foams produced from the polyester polyols exhibit higher thermal stability and/or greater intumescence when compared with foams made from other polyester polyols. The phthalimide-containing polyester polyols should allow formulators to improve the flammability performance of rigid foams with reduced levels of flame retardants and/or lower index and should facilitate the production of thinner insulation panels.
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公开(公告)号：US20220363977A1
公开(公告)日：2022-11-17
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
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.
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公开(公告)号：US20220033545A1
公开(公告)日：2022-02-03
申请号：US17501838
申请日：2021-10-14
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: C08F210/10 , C08F8/46 , C08F220/28 , C08G81/02 , C08G83/00 , 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.
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Patent Agency Ranking
公开(公告)号：US11208522B2
公开(公告)日：2021-12-28
申请号：US16734911
申请日：2020-01-06
Applicant: Stepan Company
Inventor： Michael Edward O'Brien , Jeffrey R. Janos , Scott Yin
IPC: C08G18/42 , C08L67/02 , C08L67/04 , C08L75/06 , C08G18/10 , C08G18/73 , C08G18/76 , C08G18/78 , C08G18/79 , C08G63/08 , C08G63/181 , C08G63/199 , C08K5/17 , C08K5/353
Abstract: Lactide-based random polyester polyols for use in polyurethane compositions are disclosed. The polyester polyols have an OH value in the range of greater than 400 mg KOH/g up to 1100 mg KOH/g and are the reaction product of at least one polycarboxylic acid, at least one lactide, and one or more polyalcohols. The polyester polyols can be formulated into the B-side of a two part polyurethane composition to obtain a polyurethane having improved hardness and solvent resistance and a low VOC content. The polyurethane composition is particularly suitable for polyurethane coating applications.
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公开(公告)号：US11203811B2
公开(公告)日：2021-12-21
申请号：US16807683
申请日：2020-03-03
Applicant: Stepan Company
Inventor： Alla Crabtree , Laura Lee Whitlock
Abstract: A corrosion inhibitor active and method for reducing corrosion of a metal surface in contact with a corrosive environment is disclosed. The corrosion inhibitor active is an organic sulfonated compound that is derived from the sulfonation of one or more carboxylic acids, internal olefins, or alpha-olefins having a carbon chain length of 15 to 26 carbon atoms. The method of reducing corrosion includes contacting the metal surface with an effective amount of the corrosion inhibitor active. The corrosion inhibitor active is useful in high temperature corrosive environments, such as those found in oil and gas operations.
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公开(公告)号：US11168238B2
公开(公告)日：2021-11-09
申请号：US16579301
申请日：2019-09-23
Applicant: Stepan Company
Inventor： Warren A. Kaplan , Sarah Wolek
IPC: C09J175/04 , C08G18/42 , C08G18/20 , C08G18/32 , C08G18/66 , E04D5/14 , C08G18/76 , C08K5/1565
Abstract: A low-VOC, two-component polyurethane adhesive is provided. The polyurethane adhesive has an A-side that includes an isocyanate and a non-reactive plasticizer, and a B-side that includes an aliphatic polyester polyol, a non-polyester polyol, and a urethane catalyst. The A-side and the B-side are reacted at a volume ratio of 1:1 and formulated at an NCO/OH index within the range of 0.90 to 1.10. The polyurethane adhesive is solvent-free and is particularly suitable for adhering a polymeric membrane to a substrate.
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公开(公告)号：US11142782B2
公开(公告)日：2021-10-12
申请号：US16048945
申请日：2018-07-30
Applicant: Stepan Company
Inventor： Nattaporn Lohitharn
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.
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公开(公告)号：US20210309895A1
公开(公告)日：2021-10-07
申请号：US17348199
申请日：2021-06-15
Applicant: STEPAN COMPANY
Inventor： Michael E. O'BRIEN , Warren A. KAPLAN , Jennifer S. WESTFALL
IPC: C09J163/04
Abstract: One-component (1K) adhesive compositions (“PEEP” compositions) and a process for making them are disclosed. A polyepoxide is reacted with a polyether polyol composition, a polyester polyol composition, or both in the presence of a heat-activated Lewis acid catalyst at a temperature within the range of 100° C. to 220° C. for a time effective to cure the adhesive. The compositions are storage-stable under ambient conditions. Compared with conventional epoxy compositions, the 1K PEEP compositions offer improved room temperature lap shear strength, better resilience, and higher elongation. The 1K PEEP systems deliver a desirable balance of physical and mechanical properties while avoiding polyisocyanates and polyamine crosslinkers.
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