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公开(公告)号：US3886022A
公开(公告)日：1975-05-27
申请号：US47308174
申请日：1974-05-24
Applicant: PERSTORP AB
Inventor： KONICEK JIRI K
CPC classification number: H05K3/025 , H05K2203/0152 , H05K2203/0786 , Y10S156/922 , Y10T156/11
Abstract: Process for peeling off an aluminum foil from a copper layer of a copper-clad, insulating base, which base is intended for the production of printed circuits. The process is characterized in that the peeling off is carried out below the surface of an aqueous solution or at a continuous supply of an aqueous solution on the boundary between the copper layer and the aluminum foil.
Abstract translation: 用于从用于生产印刷电路的基底的铜包覆绝缘基底的铜层剥离铝箔的方法。 该方法的特征在于，在水溶液的表面下方或在铜层和铝箔之间的边界处连续供给水溶液进行剥离。
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公开(公告)号：US3584097A
公开(公告)日：1971-06-08
申请号：US3584097D
申请日：1969-06-02
Applicant: PERSTORP AB
Inventor： HELLSTROM BENGT E O , SVENSSON JAN E GUNNANG NILS-AK
Abstract: PROCESS FOR THE PRODUCTION OF GRANULATED MOULDING POWDER CHARACTERIZED BY SUBJECTING PULVERULENT POWDER TO AN UPWARD FLOWING, PULSATING AIR PRESSURE STREAM IN A CONTAINER AND INJECTING A LIQUID TO THE BLOWN CLOUD OF PARTICLES, SIMULTANEOUSLY WITH THE AIR PULSES.
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公开(公告)号：US3561997A
公开(公告)日：1971-02-09
申请号：US3561997D
申请日：1968-04-25
Applicant: PERSTORP AB
Inventor： WALLINDER JOHN ARNE
CPC classification number: B32B15/08 , B29C70/00 , B29C70/12 , B29K2309/08 , Y10S205/917
Abstract: METHOD OF PRODUCING A LAMINATED MATERIAL CONTAINING AT LEAST ONE THIN LAYER OF METAL, BY APPLYING A LAYER OF PLASTICS MATERIAL CONTAINING IN A DISTRIBUTED CONDITION 10-40% BY WEIGHT OF A FINELY DIVIDED SUBSTANCE HAVING A PARTICLE SIZE BETWEEN 0.0005-0.01 MM. TO AT LEAST ONE SIDE OF A FOUNDATION SHEET, REMOVING SAID FINELY DIVIDED SUBSTANCE FROM THE FREE SURFACE OF THE PLASTICS LAYER BY CHEMICAL ACTION, THUS OBTAINING A SURFACE PITTED WITH CAVITIES, AND METALLIZING A THIN LAYER OF METAL UPON SAID PITTED SURFACE.
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公开(公告)号：US3494106A
公开(公告)日：1970-02-10
申请号：US3494106D
申请日：1968-06-17
Applicant: PERSTORP AB
Inventor： FLODIN PER G M , HERZ KURT S
IPC: C07C45/78 , C07D323/06 , B01D53/02
CPC classification number: C07D323/06 , C07C45/783 , C07C47/04
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公开(公告)号：US11981629B2
公开(公告)日：2024-05-14
申请号：US17624862
申请日：2020-06-23
Applicant: PERSTORP AB
Inventor： Matias Kangas , Stefan Nilsson
CPC classification number: C07C45/86 , B01D3/148 , B01D3/42 , B01J31/185 , B01J2231/321 , B01J2531/822
Abstract: The present invention refers to a method for reducing heavy end formation and catalyst loss in a continuous hydroformylation process, where an olefin or an olefin mixture is reacted with carbon monoxide and hydrogen in a reactor assembly (1) in the presence of a rhodium complex catalyst, comprising at least one organobisphosphite ligand, in order to produce an aldehyde. Said method comprising the addition of an epoxide to the reaction mixture and the continuous or discontinuous removal of early heavy ends.
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Patent Agency Ranking
76.发明申请公开(公告)号：US20220251015A1
公开(公告)日：2022-08-11
申请号：US17624862
申请日：2020-06-23
Applicant: PERSTORP AB
Inventor： Matias KANGAS , Stefan NILSSON
Abstract: The present invention refers to a method for reducing heavy end formation and catalyst loss in a continuous hydroformylation process, where an olefin or an olefin mixture is reacted with carbon monoxide and hydrogen in a reactor assembly (1) in the presence of a rhodium complex catalyst, comprising at least one organobisphosphite ligand, in order to produce an aldehyde. Said method comprising the addition of an epoxide to the reaction mixture and the continuous or discontinuous removal of early heavy ends.
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公开(公告)号：US20200331838A1
公开(公告)日：2020-10-22
申请号：US16097662
申请日：2017-04-24
Applicant: PERSTORP AB
Inventor： Magnus LARSEN , Susanne STIGSSON , Snjezana TRUPINA GRÖNLUND , Christoffer MÅNSSON
IPC: C07C67/08
Abstract: Disclosed is a method for production of an ester obtained from a reaction between at least one alcohol having at least one hydroxyl group, such as a diol, and at least one linear of branched C3-C20 monocarboxylic acid, said reaction being performed in presence of at least one azeotropic solvent and optionally at least one antioxidant. Said method comprises the steps of (a) charging said alcohol, said monocarboxylic acid, and said azeotropic solvent and optionally said antioxidant to a reactor, (b) subjecting said alcohol and said carboxylic acid to esterification under reflux, (c) removing azeotropic solvent and unreacted carboxylic acid from yielded reaction mixture, (d) steam stripping off residual unreacted carboxylic acid, (e) neutralising yielded reaction product with an aqueous base, (f) separating water and organic phases, (g) recovering said organic phase and evaporating residual water, and (h) filtering off said antioxidant and possible remaining salts in yielded reaction product. The method is preferably performed in at least one reactor equipped with reflux, at least one vacuum pump, evaporation/distillation, steam stripping and decantation, and at least one filtration unit and optionally at least one coalescer filtre.
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公开(公告)号：US10420745B2
公开(公告)日：2019-09-24
申请号：US15562105
申请日：2016-03-17
Applicant: PERSTORP AB
Inventor： Filip Van Immerseel , Karolien Van Driessche , Richard Ducatelle , Conrad Gerard Schwarzer
IPC: A61K31/225 , A23K20/158 , A23K20/105 , A23K50/75 , A61K31/22 , A61P31/04 , A61K47/02 , A61K31/122
Abstract: The present invention refers to a glycerol ester composition comprising the reaction product obtained from reacting valeric acid and glycerol at a molar ratio of between 1:0.8 and 1:1.2, for use in reduction and/or inhibition of the growth of gram-positive, pathogenic bacteria. The present invention also refers to said glycerol ester composition for use in prevention and/or alleviation of necrotic enteritis in the gastric tract of galloanserans.
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公开(公告)号：US10167359B2
公开(公告)日：2019-01-01
申请号：US15532637
申请日：2015-11-26
Applicant: Perstorp AB
Inventor： Vanessa Maurin , Paul Kelly
IPC: C08F2/46 , C08F2/50 , C08G61/04 , C08G18/42 , C09D4/00 , C08G18/81 , C09D133/14 , C08F220/18 , C08G18/48 , C08G18/67 , C08G18/75 , C08G18/08 , C08G18/10 , C09D175/16
Abstract: Disclosed is a UV-curing coating composition comprising (a) 40-70% by weight of at least one urethane (meth)acrylate being a product of a reaction between at least one polycaprolactone polyol (a1) and at least one adduct (a2), said adduct (a2) being a product of a reaction between at least one polyisocyanate (a3) and at least one hydroxyalkyl (meth)acrylate (a4), said polycaprolactone polyol (a1) being a product of a reaction between at least one polyalkoxylated polyol (a5) and at least one caprolactone monomer (a6), (b) 20-50% by weight of at least one reactive diluent having at least one olefinic carbon-carbon double bond, and (c) 0.5-10% by weight of at least one photoinitiator, and optionally (d) 1-15% by weight of at least one matting agent.
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公开(公告)号：US20180186809A1
公开(公告)日：2018-07-05
申请号：US15738363
申请日：2016-06-09
Applicant: PERSTORP AB
Inventor： Mikael WERNERSSON , Linh Mong NGO
IPC: C07D493/10
CPC classification number: C07D493/10
Abstract: Disclosed is a process for production of a spiroglycol by subjecting pentaerythritol to reaction in water with hydroxypivaldehyde in presence of a catalytically active amount of at least one acid catalyst and seed particles, wherein pentaerythritol, water, at least one acid catalyst and spiroglycol seed particles are charged to a reaction vessel, equipped with heating/cooling and agitation, and under stirring heated to a predetermined reaction temperature followed by progressive addition of hydroxypivaldehyde. The spiroglycol seed particles are present in an amount of 0.5-1.0% by weight, calculated on pentaerythritol, water, acid catalyst and hydroxypivaldehyde, and the hydroxypivaldehyde is charged at a rate determined over time by monitoring growth and/or formation of yielded spiroglycol particles.
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