公开(公告)号：US4826991A

公开(公告)日：1989-05-02

申请号：US16771

申请日：1987-02-20

申请人： Natsuo Sawa ,  Takeshi Masuda ,  Takayuki Murai ,  Singi Okazaki ,  Yukio Miyauchi ,  Masayuki Ito

发明人： Natsuo Sawa ,  Takeshi Masuda ,  Takayuki Murai ,  Singi Okazaki ,  Yukio Miyauchi ,  Masayuki Ito

IPC分类号： C07D233/54 ,  C07D233/61 ,  C07D521/00 ,  C08G59/40 ,  C08G59/44 ,  C08G59/50 ,  C08G59/68

CPC分类号： C07D233/56 ,  C07D231/12 ,  C07D233/64 ,  C07D249/08 ,  C08G59/5073 ,  C08G59/686

摘要： An imidazole compound represented by the general formula ##STR1## wherein R is an alkyl group having up to 17 carbon atoms or a phenyl group. This imidazole compound is useful as a curing agent or curing accelerator for epoxy resins.

公开(公告)号：US5021584A

公开(公告)日：1991-06-04

申请号：US403460

申请日：1989-09-06

申请人： Natsuo Sawa ,  Takeshi Masuda ,  Shozo Miura ,  Naoki Kano ,  Kazuo Kamagata ,  Masayuki Ito

发明人： Natsuo Sawa ,  Takeshi Masuda ,  Shozo Miura ,  Naoki Kano ,  Kazuo Kamagata ,  Masayuki Ito

IPC分类号： C07D233/54 ,  C07D233/58 ,  C07D521/00

CPC分类号： C07D233/64 ,  C07D231/12 ,  C07D233/56 ,  C07D249/08

摘要： Disclosed is a process for the preparation of a 1-benzylimidazole compound represented by the following general formula: ##STR1## wherein R.sub.2 represents a lower alkyl group or phenyl group, and R.sub.4 represents a hydrogen atom or a methyl group,which comprises heating and to react a 1-unsubstituted imidazole compound represented by the following general formula: ##STR2## wherein R.sub.2 and R.sub.4 are as defined above, with benzyl alcohol in the presence of a carboxylic acid, a carboxylic anhydride, a benzyl ester thereof or a lower alkyl ester thereof, and neutralizing the reaction product with an alkali.

公开(公告)号：US4983485A

公开(公告)日：1991-01-08

申请号：US337902

申请日：1989-04-11

申请人： Takeshi Nagaoka ,  Takashi Yoshioka ,  Kazuo Kamagata ,  Natsuo Sawa ,  Takayuki Murai

发明人： Takeshi Nagaoka ,  Takashi Yoshioka ,  Kazuo Kamagata ,  Natsuo Sawa ,  Takayuki Murai

IPC分类号： G03G9/097

CPC分类号： G03G9/09758 ,  G03G9/09783

摘要： Disclosed is a positively chargeable toner comprising, as a charge-controlling agent, an acid adduct, metal complex or derivative of a 2-alkylimidazole represented by the following formula: ##STR1## wherein R.sub.2 stands for an alkyl group having 11 through 17 carbon atoms, and R.sub.4 stands for a hydrogen atom or a methyl group.In this toner, a high charge-controlling effect is attained with a small amount of the charge-controlling agent, and since the charge-controlling agent has a white color or light color, this toner is advantageously used as an electrostatic photographic toner for the color printing.

公开(公告)号：US4614774A

公开(公告)日：1986-09-30

申请号：US758778

申请日：1985-07-25

申请人： Natsuo Sawa ,  Takeshi Masuda ,  Takashi Mizui

发明人： Natsuo Sawa ,  Takeshi Masuda ,  Takashi Mizui

IPC分类号： C07D251/18 ,  C07D251/30 ,  C07D251/32 ,  C08G59/50 ,  C08G59/56

CPC分类号： C07D251/32 ,  C07D251/18 ,  C08G59/5086

摘要： Disclosed is an isocyanuric acid adduct of 2-vinyl-4,6-diamino-S-triazine represented by the following structural formula: ##STR1## This adduct is prepared by heating 2-vinyl-4,6-diamino-S-triazine and isocyanuric acid in the presence of water, preferably by using sodium sulfide as a polymerization inhibitor. This adduct is valuable as a hardening agent for an epoxy resin.

公开(公告)号：US4579946A

公开(公告)日：1986-04-01

申请号：US690248

申请日：1985-01-10

申请人： Natsuo Sawa ,  Takeshi Masuda

发明人： Natsuo Sawa ,  Takeshi Masuda

IPC分类号： C07D251/18

CPC分类号： C07D251/18

摘要： Disclosed is a process for the synthesis of 2-vinyl-4,6-diamino-S-triazine having the following structural formula: ##STR1## which comprises heating an imidazolyl-S-triazine compound represented by the following general formula: ##STR2## wherein R.sub.1 stands for a hydrogen atom, a methyl group or an ethyl group, and R.sub.2 stands for a hydrogen atom or a methyl group, or an isocyanuric acid-addition product thereof under reduced pressure in the presence of a polymerization inhibitor.According to this process, 2-vinyl-4,6-diamino-S-triazine can be manufactured at a low cost on an industrial scale.

摘要翻译： 公开了一种合成具有以下结构式的2-乙烯基-4,6-二氨基-S-三嗪的方法：包括加热由以下通式表示的咪唑基-S-三嗪化合物： 其中R1表示氢原子，甲基或乙基，R2表示氢原子或甲基，或者在阻聚剂存在下，在减压下代表异氰脲酸加成产物。 根据该方法，2-乙烯基-4,6-二氨基-S-三嗪可以以工业规模低成本制造。

公开(公告)号：US4596868A

公开(公告)日：1986-06-24

申请号：US768639

申请日：1985-08-23

申请人： Natsuo Sawa ,  Takeshi Masuda

发明人： Natsuo Sawa ,  Takeshi Masuda

IPC分类号： C07D233/61 ,  C07D251/18 ,  C07D521/00

CPC分类号： C07D231/12 ,  C07D233/56 ,  C07D249/08 ,  C07D251/18

摘要： 2-Vinyl-4,6-diamino-s-triazine is synthesized in a high yield by reacting 2-(2'-methylimidazolyl-(1'))-ethyl-4,6-diamino-s-triazine with epichlorohydrin. The reaction may be carried out in an aqueous medium in the presence of a catalytic amount of a polymerization inhibitor.

摘要翻译： 2-（2'-甲基咪唑基 - （1'）） - 乙基-4,6-二氨基-s-三嗪与表氯醇反应，合成2-乙烯基-4,6-二氨基-s-三嗪。 该反应可以在含水介质中，在催化量的阻聚剂存在下进行。

公开(公告)号：US4567259A

公开(公告)日：1986-01-28

申请号：US694958

申请日：1985-01-25

申请人： Natsuo Sawa ,  Takeshi Masuda ,  Takashi Mizui

发明人： Natsuo Sawa ,  Takeshi Masuda ,  Takashi Mizui

IPC分类号： C07D251/18 ,  C07D251/30 ,  C07D251/32 ,  C08G59/50 ,  C07D403/12

CPC分类号： C07D251/32 ,  C07D251/18 ,  C08G59/5086

摘要： Disclosed is an isocyanuric acid adduct of 2-vinyl-4,6-diamino-S-triazine represented by the following structural formula: ##STR1## This adduct is prepared by heating 2-vinyl-4,6-diamino-S-triazine and isocyanuric acid in the presence of water, preferably by using sodium sulfide as a polymerization inhibitor. This adduct is valuable as a hardening agent for an epoxy resin.

摘要翻译： 公开了由以下结构式表示的2-乙烯基-4,6-二氨基-S-三嗪的异氰脲酸加成物：该加合物通过加热2-乙烯基-4,6-二氨基-S-三嗪和 异氰脲酸在水的存在下，优选通过使用硫化钠作为阻聚剂。 该加合物作为环氧树脂的硬化剂是有价值的。

公开(公告)号：US4514556A

公开(公告)日：1985-04-30

申请号：US594902

申请日：1984-03-29

申请人： Natsuo Sawa ,  Toshihiro Suzuki ,  Shinji Okazaki

发明人： Natsuo Sawa ,  Toshihiro Suzuki ,  Shinji Okazaki

IPC分类号： C07D233/56 ,  C07D233/54 ,  C07D233/58 ,  C07D233/64 ,  C08G59/00 ,  C08G59/40 ,  C08G59/50 ,  C07D233/88 ,  C08G59/68

CPC分类号： C07D233/56 ,  C08G59/5073

摘要： The disclosure relates to a novel compound 4,4'-methylene-bis-(2-ethyl-5-methyl imidazole) represented by the structural formula ##STR1## A method is provided for producing the novel compound subjecting formaldehyde or a methylenizing agent to thermal reaction with 2-ethyl-4-methyl imidazole in the presence of a catalyst; and a method of curing an epoxy compound and a method of accelerating curing the epoxy compound and a method of inhibiting crystallization of 2-ethyl-4-methyl imidazole, respectively by use of the new compound.

摘要翻译： 本公开内容涉及由结构式表示的新化合物4,4'-亚甲基 - 双 - （2-乙基-5-甲基咪唑）。提供了一种制备将甲醛或亚甲基化剂 在催化剂存在下与2-乙基-4-甲基咪唑进行热反应; 环氧化合物的固化方法和加速固化环氧化合物的方法以及通过使用新化合物分别抑制2-乙基-4-甲基咪唑结晶的方法。

公开(公告)号：US4658009A

公开(公告)日：1987-04-14

申请号：US839189

申请日：1986-03-13

申请人： Kazuo Kamagata ,  Toshiaki Yamada ,  Natsuo Sawa

发明人： Kazuo Kamagata ,  Toshiaki Yamada ,  Natsuo Sawa

IPC分类号： C07D251/18 ,  C07D251/32 ,  C07D401/12 ,  C07D403/12 ,  C08G59/00 ,  C08G59/40 ,  C08G59/50 ,  C08G59/56 ,  C07D403/00

CPC分类号： C07D401/12 ,  C07D251/18 ,  C07D251/32 ,  C07D403/12 ,  C08G59/5086 ,  C08G59/56

摘要： Disclosed is a 2-substituted-4,6-diamino-s-triazine/isocyanuric acid adduct represented by the following formula: ##STR1## wherein R stands for an alkyl group having 2 to 20 carbon atoms, an unsubstituted or cyano group-substituted aryl group, or a group of the formula R.sup.1 --CH.sub.2 CH.sub.2 -- in which R.sup.1 stands for an alkoxy group having up to 20 carbon atoms, an acyloxy group, an amino group, an N-substituted amino group, a benzotriazolyl group or a 2-alkylimidazolyl-(4)-dithiocarbonyl group, or by the following formula: ##STR2## wherein R.sup.2 stands for an alkylene group which may have an intervening imino or phenylene group.When this adduct is used for curing a polyepoxy resin, a cured product having good heat resistance, insulating property and adhesion and an excellent migration-preventing effect is formed.

摘要翻译： 公开了由下式表示的2-取代-4,6-二氨基-s-三嗪/异氰脲酸加合物：其中R代表具有2-20个碳原子的烷基，未取代或氰基 基团取代的芳基或式R1-CH2CH2-基团，其中R1代表具有至多20个碳原子的烷氧基，酰氧基，氨基，N-取代氨基，苯并三唑基或 2-烷基咪唑基 - （4） - 二硫代羰基，或通过下式：其中R 2表示可以具有中间亚氨基或亚苯基的亚烷基。 当该加合物用于固化聚环氧树脂时，形成具有良好的耐热性，绝缘性和粘附性以及良好的防迁移效果的固化产物。

公开(公告)号：US4189577A

公开(公告)日：1980-02-19

申请号：US885948

申请日：1978-03-13

申请人： Natsuo Sawa ,  Tadao Nomoto ,  Keiko Iuchi ,  Toshihiro Suzuki ,  Shunichi Kawata

发明人： Natsuo Sawa ,  Tadao Nomoto ,  Keiko Iuchi ,  Toshihiro Suzuki ,  Shunichi Kawata

IPC分类号： C07D233/54 ,  C07D233/58 ,  C07D233/61 ,  C07D251/32 ,  C07D403/06 ,  C07D521/00 ,  C08G59/00 ,  C08G59/40 ,  C08G59/50 ,  C08G59/68 ,  C08K5/00 ,  C08K5/34 ,  C08K5/3467 ,  C07D251/30

CPC分类号： C07D233/56 ,  C07D231/12 ,  C07D233/64 ,  C07D249/08 ,  C07D251/32 ,  C08G59/5086 ,  C08G59/686

摘要： An imidazole-isocyanuric acid adduct having the following formula is disclosed: ##STR1## wherein R.sub.1 is a member selected from the group consisting of a hydrogen atom, a .beta.-cyanoethyl group and a .beta.-[3,5-diamino-s-triazinyl-(1)]-ethyl group, R.sub.2 stands for a monovalent hydrocarbon group having up to 17 carbon atoms, R.sub.3 is a member selected from the group consisting of a hydrogen atom and an alkyl group having up to 4 carbon atoms, with the proviso that when R.sub.1 is a hydrogen atom, R.sub.2 is a methyl or phenyl group and R.sub.3 is a hydrogen atom and when R.sub.1 is a .beta.-cyanoethyl group, R.sub.2 is a phenyl group and R.sub.3 is a hydrogen atom, and n is a number of from 0 to 2.This adduct has peculiar characteristics not possessed by ordinary salts. Namely, the adduct is stable in water, and it decomposes in a solvent or under heating. The adduct is valuable as a curing agent for epoxy resins, and it can be utilized for purification of imidazoles.

摘要翻译： 公开了具有下式的咪唑 - 异氰脲酸加合物：其中R 1是选自氢原子，β-氰基乙基和β-[3,5-二氨基-s-三嗪基 - （1）] - 乙基，R 2表示具有至多17个碳原子的一价烃基，R 3是选自氢原子和具有至多4个碳原子的烷基的成员，条件是 当R1是氢原子时，R2是甲基或苯基，R3是氢原子，当R1是β-氰基乙基时，R2是苯基，R3是氢原子，n是从 该加合物具有普通盐不具有的特有特征。 即，加合物在水中稳定，在溶剂中或加热下分解。 加合物作为环氧树脂的固化剂是有价值的，可用于咪唑的纯化。