公开(公告)号：US11911735B2

公开(公告)日：2024-02-27

申请号：US16971940

申请日：2019-02-21

申请人： COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG

发明人： Marc Schreiber ,  Jan Weikard ,  Holger Mundstock ,  Robert Maleika ,  Sascha Frischke ,  Wilfred Teunissen ,  Herman Van Der Vegt ,  Michiel De Haan

IPC分类号： B01F35/71 ,  B05B7/24 ,  B65D81/32 ,  B01F33/501 ,  B01F35/32 ,  B01F101/36 ,  B01F101/00

CPC分类号： B01F35/7162 ,  B01F33/50114 ,  B01F35/32021 ,  B01F35/7137 ,  B05B7/2408 ,  B05B7/2472 ,  B05B7/2478 ,  B65D81/3222 ,  B01F2101/2305 ,  B01F2101/36

摘要： The invention relates to a multiple-chamber container (1, 1*) for storing and mixing a multi-component liquid coating or adhesive system (M), comprising a first chamber (10) for a first mixing component (B) and at least one other chamber (20) for another mixing component (H), the first chamber (10) and the at least one other chamber (20) being separated by at least one separating wall (30) in liquid-tight fashion and the separating wall (30) comprising a pierceable separating layer (40). The multiple-chamber container further comprises at least one piercing element (50) for piercing the pierceable separating layer (40) in such a way that the first and the one other mixing component (B, H) mix in the first or the at least one other chamber (10, 20). The multiple-chamber container (1, 1*) is characterized in that the at least one other chamber (20) is coaxial to the first chamber (10), the separating layer (40) being partially formed in the separating wall (30). The piercing element (50) is hollow, in particular hollow-cylindrical, and has at least two longitudinally offset openings (51) for introducing either the first or the other mixing component (B, H) into the chamber (10, 20) of the respective other mixing component (H, B).

公开(公告)号：US11608406B2

公开(公告)日：2023-03-21

申请号：US16976118

申请日：2019-02-25

申请人： COVESTRO INTELLECTUAL PROPERTY GMBH & CO. KG

发明人： Jan Weikard ,  Holger Mundstock ,  Dagmar Huertgen ,  Goenuel-Hava Yelkaya ,  Marc Schreiber

IPC分类号： C08G18/50 ,  B01J8/00 ,  C08G18/22 ,  C08G18/24 ,  C08G18/62 ,  C08G18/79

摘要： A process for preparing a polyurethane polymer comprises the step of: I) mixing a first component (100) comprising a polyisocyanate with a second reactant component (200) comprising a compound having Zerewitinoff-active hydrogen atoms in a mixing vessel (300) to obtain a reaction mixture (400), wherein the first reactant component (100) and/or the second reactant component (200) are contacted with a catalyst bed (500) before they are mixed in the mixing vessel (300) and/or the reaction mixture (400) is contacted with a catalyst bed (500), wherein the catalyst bed (500) contains a catalyst reversibly sorbed on a substrate, the catalyst catalyses the reaction of isocyanate groups with themselves or with Zerewitinoff-active compounds and the catalyst is released into the first component (100), second component (200) or reaction mixture (400) that is in contact with the catalyst bed (500), such that a reaction mixture (410) containing the catalyst is obtained.