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公开(公告)号：US20220325063A1
公开(公告)日：2022-10-13
申请号：US17607967
申请日：2020-04-29
Applicant: BASF SE
Inventor： Sebastian Alexander WEISSE , Zeljko TOMOVIC , Horst BAUMGARTL , Werner LENZ , Tobias Heinz STEINKE , Bernhard VATH , Iran OTERO MARTINEZ
Abstract: Method for lowering the formaldehyde emissions of melamine/formaldehyde polymer moldings, films or fibers by impregnating the melamine/formaldehyde polymer moldings, films or fibers with an aqueous solution of at least one formaldehyde scavenger.
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公开(公告)号：US20230225312A1
公开(公告)日：2023-07-20
申请号：US17923242
申请日：2021-05-10
Applicant: BASF SE
Inventor： Sebastian Alexander WEISSE , Bernhard VATH , Tobias Heinz STEINKE , Robert D. OBER
CPC classification number: A01N25/10 , A61L2/235 , C08J9/141 , C08J9/0066 , A01N25/16 , A01N31/02 , A01N59/16 , B08B1/001 , A61L2101/02
Abstract: A method for cleaning medical equipment by scrubbing the equipment with an open-cell melamine-formaldehyde foam comprising an antibacterial active composition, and wherein the open-cell melamine-formaldehyde foam is prepared from a melamine-formaldehyde precondensate, wherein the molar ratio melamine to formaldehyde of the melamine-formaldehyde precondensate is smaller than 0.5.
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Patent Agency Ranking
公开(公告)号：US20210148203A1
公开(公告)日：2021-05-20
申请号：US16627473
申请日：2018-07-11
Applicant: BASF SE
Inventor： Christian BITTNER , Guenter OETTER , Jack F. TINSLEY , Hans-Christian RATHS , Marcel Patrik KIENLE , Sebastian Alexander WEISSE
Abstract: The present invention relates to a method for the production of crude oil from subterranean, oil-bearing formations comprising at least the following steps of providing an aqueous surfactant composition comprising water and a surfactant mixture, injecting said surfactant composition into the subterranean, oil-bearing formation through at least one injection well, thereby reducing the crude oil-water interfacial tension to less than 0.1 mN/m, and withdrawing crude oil from the formation through at least one production well, wherein the surfactant mixture comprises at least a surfactant (A) having the general formula R1—O—(CH2CH(R2)O)a—(CH2CH(CH3)O)b—(CH2CH2O)c—R3—Y−M+ (I) and a solubility enhancer (B) having the general formula R4—O—(CH2CH(CH3)O)x—(CH2CH2O)y—R3—Y−M+ (II), wherein R1 to R4, a, b, c, x, y, Y and M have the meaning as defined the the description and claims. The invention further relates to said aqueous surfactant composition and methods for preparing the same as well as the use of solubility enhancer (B) for enhancing the solubility of anionic surfactant (A).
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4.发明申请公开(公告)号：US20200157409A1
公开(公告)日：2020-05-21
申请号：US16627489
申请日：2018-07-11
Applicant: BASF SE
Inventor： Christian BITTNER , Guenter OETTER , Jack F. TINSLEY , Hans-Christian RATHS , Marcel Patrik KIENLE , Sebastian Alexander WEISSE
Abstract: The present invention relates to a method for the production of crude oil from subterranean, oil-bearing formations comprising at least the following steps of providing an aqueous surfactant composition comprising water and a surfactant mixture, injecting said surfactant composition into the subterranean, oil-bearing formation through at least one injection well, thereby reducing the crude oil-water interfacial tension to less than 0.1 mN/m, and withdrawing crude oil from the formation through at least one production well, wherein the surfactant mixture comprises at least a surfactant (A) having the general formula R1—O—(CH2CH(R2)O)a-(CH2CH(CH3)O)b— (CH2CH2O)c—R3—Y− M+ (I) and a solubility enhancer (B) having the general formula R4—O—(CH2CH(CH3)O)x—(CH2CH2O)y—R3—Y− M+ (II), wherein R1 to R4, a, b, c, x, y, Y and M have the meaning as defined the the description and claims. The invention further relates to said aqueous surfactant composition and methods for preparing the same as well as the use of solubility enhancer (B) for enhancing the solubility of anionic surfactant (A).
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公开(公告)号：US20240101745A1
公开(公告)日：2024-03-28
申请号：US17769085
申请日：2020-10-13
Applicant: BASF SE
Inventor： Sebastian Alexander WEISSE , Werner LENZ , Bernhard VATH , Tobias Heinz STEINKE
CPC classification number: C08G12/32 , C08J9/0023 , C08J9/0028 , C08J9/141 , C08J9/20 , C08G2101/00
Abstract: Melamine-formaldehyde foam with improved weather resistance comprising 0.1 to 8 wt.-% of at least one UV stabilizer, such as benzotriazole derivatives and piperidinol derivatives and further 1 to 3 wt.-% of at least one hydrophobicization agent, such as organo-modified siloxanes and silanes and processes for producing such melamine-formaldehyde foams with improved weather resistance.
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公开(公告)号：US20200270415A1
公开(公告)日：2020-08-27
申请号：US16646643
申请日：2018-08-30
Applicant: BASF SE
Inventor： Sebastian Alexander WEISSE , Tobias Heinz STEINKE , Bernhard VATH , Werner LENZ
Abstract: A melamine/formaldehyde foam having an open-cell foam structure, with an impregnation applied to the foam structure that comprises at least one particulate phyllosilicate surface-modified with aminosilane and at least one anionically- and/or nonionically-stabilized polyurethane dispersion.
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公开(公告)号：US20190276623A1
公开(公告)日：2019-09-12
申请号：US16463014
申请日：2017-11-14
Applicant: BASF SE
Inventor： Johann Martin SZEIFERT , Bernhard VATH , Tobias Heinz STEINKE , Bettina WESTER , Cecile SCHNEIDER , Sebastian Alexander WEISSE , Peter WOLF , Werner LENZ , Axel KIRSTE , David John PUNG , Megan ROBERTS
Abstract: A process for producing a melamine-formaldehyde foam by heating and foaming an aqueous mixture M using microwave radiation, said mixture M comprising at least one melamine-formal-dehyde precondensate, at least one curative, at least one surfactant, at least one blowing agent and at least one linear polymer with a number average molecular weight Mn in the range from 500 to 10.000 g/mol and at least two functional groups selected from OH, NH2 or COOH as well as a melamine-formaldehyde foam obtainable by this process and its use.
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