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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：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
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.
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Patent Agency Ranking
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
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.
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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
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.
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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.
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公开(公告)号：US11725132B2
公开(公告)日：2023-08-15
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: C09K8/524 , C08F8/46 , C08F210/10 , C08G81/02 , C08G83/00 , C08F220/28
CPC classification number: C09K8/524 , C08F8/46 , C08F210/10 , C08F220/28 , C08G81/027 , C08G83/004 , 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.
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公开(公告)号：US20200178523A1
公开(公告)日：2020-06-11
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
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.
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