公开(公告)号：US10774025B2

公开(公告)日：2020-09-15

申请号：US16607018

申请日：2018-04-26

Applicant: OSAKA ORGANIC CHEMICAL INDUSTRY LTD.

Inventor： Keisuke Ito ,  Shigeaki Matsumoto ,  Keita Shigematsu

IPC: C07C67/03 ,  C07C67/54 ,  C07C69/54

Abstract: The present invention provides a production method of a multifunctional acrylate with a reduced tin content which includes adding an acid to a mixture containing an organotin compound and a multifunctional acrylate and distilling the mixture containing the acid.

公开(公告)号：US09670129B2

公开(公告)日：2017-06-06

申请号：US14516979

申请日：2014-10-17

Applicant: OSAKA ORGANIC CHEMICAL INDUSTRY LTD.

Inventor： Yukio Tanaka ,  Kohei Okamura ,  Keisuke Ito

IPC: C07C67/40 ,  C07C67/03

CPC classification number: C07C67/40 ,  C07C67/03 ,  C07C69/54

Abstract: A process for preparing 4-hydroxybutyl acrylate by transesterifying an alkyl acrylate with 1,4-butanediol in the presence of a dialkyltin oxide such that each of the alkyl groups has 4 to 8 carbon atoms, characterized in that the amount of the dialkyltin oxide is adjusted to 0.00001 to 0.01 moles per one mole of the alkyl acrylate.

公开(公告)号：US20160136538A1

公开(公告)日：2016-05-19

申请号：US14977922

申请日：2015-12-22

Applicant: OSAKA ORGANIC CHEMICAL INDUSTRY LTD.

Inventor： Shigeaki Matsumoto ,  Keisuke Ito ,  Masayoshi Matsuno

IPC: B01D3/00 ,  B01D3/42

CPC classification number: B01D3/009 ,  B01D3/4205 ,  C07C67/03 ,  C07C67/54 ,  C07C69/54

Abstract: A (meth)acrylate production system having a reactor (A1) provided with a distillation column (2) and a distillation apparatus (B3) provided with a distillation column (4). A condensing apparatus (6) is provided at the top of the distillation column (2). The condensing apparatus (6) and a switching apparatus (7) are connected via a pipe (5b), the switching apparatus (7) and the top of the distillation column (2) are connected via a pipe (5c), the switching apparatus (7) and a liquid separation apparatus (8) are connected via a pipe (5d), the top of the liquid separation apparatus (8) and the distillation column (2) are connected via pipe (5e), the bottom of the liquid separation apparatus (8) and the distillation apparatus (B3) are connected via a pipe (50, the top of the distillation column (4) is connected with a condensing apparatus (9) via a pipe (10a), the condensing apparatus (9) and a switching apparatus (11) are connected via a pipe (10b), the switching apparatus (11) and the top of the distillation column (4) are connected via a pipe (10c), the switching apparatus (11) and a recovery unit (12) are connected via a pipe (10d), and the bottom of the distillation apparatus (B3) is connected with the pipe (5d) between the switching apparatus (7) and the liquid separation apparatus (8) via a pipe (10e).

Abstract translation: 具有设置有蒸馏塔（2）的反应器（A1）和具有蒸馏塔（4）的蒸馏装置（B3）的（甲基）丙烯酸酯制造系统。 冷凝装置（6）设置在蒸馏塔（2）的顶部。 冷凝装置（6）和开关装置（7）经由管道（5b）连接，开关装置（7）和蒸馏塔（2）的顶部经由管道（5c）连接，开关装置 （7）和液体分离装置（8）经由管道（5d）连接，液体分离装置（8）的顶部和蒸馏塔（2）通过管道（5e）连接，液体的底部 分离装置（8）和蒸馏装置（B3）经由管道（50）连接，蒸馏塔（4）的顶部经由管道（10a）与冷凝装置（9）连接，冷凝装置（9） ）和开关装置（11）经由管道（10b）连接，开关装置（11）和蒸馏塔（4）的顶部经由管道（10c），开关装置（11）和 回收单元（12）通过管道（10d）连接，并且蒸馏设备（B3）的底部与管道（5d）在切换 装置（7）和液体分离装置（8）。

公开(公告)号：US20150126766A1

公开(公告)日：2015-05-07

申请号：US14516979

申请日：2014-10-17

Applicant: OSAKA ORGANIC CHEMICAL INDUSTRY LTD.

Inventor： Yukio Tanaka ,  Kohei Okamura ,  Toyoyuki Sugiura ,  Keisuke Ito ,  Naohiko Kawakami ,  Shigeaki Matsumoto ,  Masayoshi Matsuno

IPC: C07C67/40

CPC classification number: C07C67/40 ,  C07C67/03 ,  C07C69/54

Abstract: A process for preparing 4-hydroxybutyl acrylate by transesterifying an alkyl acrylate with 1,4-butanediol in the presence of a dialkyltin oxide such that each of the alkyl groups has 4 to 8 carbon atoms, characterized in that the amount of the dialkyltin oxide is adjusted to 0.00001 to 0.01 moles per one mole of the alkyl acrylate.

Abstract translation: 一种通过在二烷基锡氧化物的存在下，用丙烯酸烷基酯与1,4-丁二醇进行酯交换使得每个烷基具有4至8个碳原子来制备丙烯酸4-羟基丁酯的方法，其特征在于二烷基氧化锡的量为 相对于每摩尔丙烯酸烷基酯调整为0.00001〜0.01摩尔。