-
公开(公告)号:US06740694B2
公开(公告)日:2004-05-25
申请号:US09815620
申请日:2001-03-23
申请人: Daniel Thibaut , André Schmitter , Benjamin Breitenstein , Christoph Kleiner , Matthias von Frieling , Martin von Büren , André Geoffroy
发明人: Daniel Thibaut , André Schmitter , Benjamin Breitenstein , Christoph Kleiner , Matthias von Frieling , Martin von Büren , André Geoffroy
IPC分类号: C08K534
CPC分类号: C08K5/005 , C07C39/15 , C07C231/22 , C07C235/34 , C07C243/32 , C07C323/20
摘要: A description is given of an extrusion process for the preparation of a low-dust stabiliser, using a subcooled melt as granulation liquid, as well as of novel amorphous modifications of different stabilisers, including 2,2′-methylenebis(4-[1,1,3,3-tetramethylbutyl]-6-benzotriazol-2-yl-phenol), and of the &bgr;-crystalline modification of 2-(2-hydroxy-3,5-di-tert-butylphenyl)-5-chlorobenzotriazole and of the preparation thereof. The novel process affords products which are easy to handle and which are flowable, and the novel modifications have advantages as regards their preparation, processing and their use as stabiliser.
摘要翻译: 给出了使用过冷熔体作为造粒液体制备低灰尘稳定剂的挤出方法以及不同稳定剂的新型无定形改性,包括2,2'-亚甲基双(4- [ 1,3,3-四甲基丁基] -6-苯并三唑-2-基 - 苯酚)和2-(2-羟基-3,5-二叔丁基苯基)-5-氯苯并三唑的β-晶体改性和 的制备。 新颖的方法提供易于处理和可流动的产品,并且新颖的改性在其制备,加工及其作为稳定剂的用途方面具有优点。
-
公开(公告)号:US06225375B1
公开(公告)日:2001-05-01
申请号:US09059148
申请日:1998-04-13
申请人: Daniel Thibaut , André Schmitter , Benjamin Breitenstein , Christoph Kleiner , Matthias von Frieling , Martin von Büren , André Geoffroy
发明人: Daniel Thibaut , André Schmitter , Benjamin Breitenstein , Christoph Kleiner , Matthias von Frieling , Martin von Büren , André Geoffroy
IPC分类号: C08K716
CPC分类号: C08K5/005 , C07C39/15 , C07C231/22 , C07C235/34 , C07C243/32 , C07C323/20
摘要: A description is given of an extrusion process for the preparation of a low-dust stabilizer, using a subcooled melt as granulation liquid, as well as of novel amorphous modifications of different stabilizers, including 2,2′-methylenebis(4-[1,1,3,3-tetramethylbutyl]-6-benzotriazol-2-yl-phenol), and of the &bgr;-crystalline modification of 2-(2-hydroxy-3,5-di-tert-butylphenyl)-5-chlorobenzotriazole and of the preparation thereof. The novel process affords products which are easy to handle and which are flowable, and the novel modifications have advantages as regards their preparation, processing and their use as stabilizer.
摘要翻译: 给出了使用过冷熔体作为造粒液体制备低灰尘稳定剂的挤出方法以及不同稳定剂的新型无定形改性,包括2,2'-亚甲基双(4- [ 1,3,3-四甲基丁基] -6-苯并三唑-2-基 - 苯酚)和2-(2-羟基-3,5-二叔丁基苯基)-5-氯苯并三唑的β-晶体改性和 的制备。 新颖的方法提供易于处理和可流动的产品,并且新颖的改性在其制备,加工及其作为稳定剂的用途方面具有优点。
-
公开(公告)号:US5663383A
公开(公告)日:1997-09-02
申请号:US671905
申请日:1996-06-28
申请人: Wolfgang Stutz , Rudolf Waditschatka , Klas Winter , Matthias von Frieling , Remy Gressly , Beat Jau , Sebastien Burki
发明人: Wolfgang Stutz , Rudolf Waditschatka , Klas Winter , Matthias von Frieling , Remy Gressly , Beat Jau , Sebastien Burki
IPC分类号: C07C67/26 , C07C69/28 , C07D303/08 , C07D305/08 , C07D405/12 , C07D409/12
CPC分类号: C07D305/08
摘要: A process for the preparation of 3-hydroxyoxetanes of formula I ##STR1## wherein R.sub.9 and R.sub.10 are each independently of the other hydrogen or C.sub.1 -C.sub.4 alkyl, by(1) reaction of a carboxylic acid R--CO.sub.2 H, wherein R is branched alkyl, with an epichlorohydrin of formula II ##STR2## wherein R.sub.9 and R.sub.10 are as defined hereinbefore, to form an ester of formula III ##STR3## wherein R, R.sub.9 and R.sub.10 are as defined hereinbefore, (2) reaction of that ester with an ether of formula IVCHR.sub.1 .dbd.CH--O--R.sub.2 (IV),wherein R.sub.1 is hydrogen or methyl, R.sub.2 is C.sub.1 -C.sub.6 alkyl, or R.sub.1 and R.sub.2 together form a radical of formula --(CH.sub.2).sub.3 --, in the presence of a catalyst, to form an ester of formula V ##STR4## (3) hydrolysis and cyclization of that ester in the presence of a base to form a compound of formula VI ##STR5## wherein R.sub.1, R.sub.2, R.sub.9 and R.sub.10 are as defined hereinbefore,(4) acetal cleavage in the presence of an acid to form the corresponding 3-hydroxyoxetane and(5) isolation of that 3-hydroxyoxetane.
摘要翻译: 制备式I的3-羟基氧杂环丁烷的方法其中R 9和R 10各自独立地为氢或C 1 -C 4烷基,通过(1)羧酸R-CO 2 H的反应,其中R为 (II)表示的支链烷基,其中R9和R10如上所定义,以形成式III的酯其中R,R 9和R 10如上所定义,(2) )其中R 1是氢或甲基,R 2是C 1 -C 6烷基,或者R 1和R 2一起形成式 - (CH 2)3的基团) 在催化剂的存在下,形成式V的酯(V)(3)在碱的存在下水解和环化该酯以形成式VI化合物(VI) 其中R 1,R 2,R 9和R 10如上所定义,(4)在酸存在下缩醛裂解以形成相应的3-羟基氧杂环丁烷和(5)该3-羟基氧杂环丁烷的分离。
-
-