公开(公告)号：CH630384A5

公开(公告)日：1982-06-15

申请号：CH163277

申请日：1977-02-10

Applicant: HOECHST AG

Inventor： MAYER NORBERT DR ,  PFAHLER GERHARD DR ,  WIEZER HARTMUT DR

IPC: C08K5/00 ,  C07D498/10 ,  C07D498/20 ,  C08K5/34 ,  C08K5/3412 ,  C08K5/3432 ,  C08K5/35 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L27/00 ,  C08L51/00 ,  C08L51/02 ,  C08L67/00 ,  C08L77/00 ,  C08L101/00 ,  C09K3/00

公开(公告)号：DE2860195D1

公开(公告)日：1981-01-08

申请号：DE2860195

申请日：1978-08-08

Applicant: HOECHST AG

Inventor： WIEZER HARTMUT DR ,  PFAHLER GERHARD DR ,  MAYER NORBERT DR ,  KNORR HARALD DR

IPC: C07D221/00 ,  C07D263/00 ,  C07D498/10 ,  C07D498/20 ,  C08K5/35

Abstract: The invention provides novel 4-carbamoyl derivatives of 1-oxa-3-oxo-4,8-diaza-spiro-[4,5]-decanes and their preparation from 1 oxa-3-oxo-4,8-diaza-spiro-[4,5]-decanes and isocyanates. The products are suitable light stabilizers for thermoplastics.

公开(公告)号：CH632734A5

公开(公告)日：1982-10-29

申请号：CH166078

申请日：1978-02-15

Applicant: HOECHST AG

Inventor： MAYER NORBERT DR ,  WIEZER HARTMUT DR

IPC: C07C69/732

公开(公告)号：DE2861885D1

公开(公告)日：1982-07-22

申请号：DE2861885

申请日：1978-11-25

Applicant: HOECHST AG

Inventor： BROTZ WALTER DR ,  MAYER NORBERT DR ,  PFAHLER GERHARD DR ,  PRINZ EBERHARD DR ,  WIEZER HARTMUT DR

IPC: C08L23/00 ,  C08K5/00 ,  C08K5/51 ,  C08K5/52 ,  C08K5/524 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L27/00 ,  C08L91/00 ,  C08L91/06 ,  C08L101/00

公开(公告)号：CH641465A5

公开(公告)日：1984-02-29

申请号：CH943677

申请日：1978-01-01

Applicant: HOECHST AG

Inventor： MAYER NORBERT DR ,  PFAHLER GERHARD DR ,  WIEZER HARTMUT DR

IPC: C07D498/10 ,  C08K5/35

公开(公告)号：DE3131682A1

公开(公告)日：1983-02-24

申请号：DE3131682

申请日：1981-08-11

Applicant: HOECHST AG

Inventor： ARPE HANS-JUERGEN PROF ,  LITTERER HEINZ DR ,  MAYER NORBERT DR

IPC: B01J20/18 ,  B01J23/00 ,  B01J29/08 ,  B01J29/18 ,  B01J29/40 ,  B01J29/70 ,  C07B61/00 ,  C07C17/00 ,  C07C17/12 ,  C07C17/358 ,  C07C17/38 ,  C07C17/389 ,  C07C17/395 ,  C07C25/02 ,  C07C67/00 ,  C07C17/24 ,  B01J29/04

Abstract: The invention relates to a process for preparing p-chlorotoluene and/or m-chlorotoluene by ring-chlorination of toluene by using the following two pages (a) and (b) when further processing the toluene chlorination product composed of mixed isomers: (a) Isolation of p-chlorotoluene from a mixture of o-, m- and p-chlorotoluene by selective adsorption of p-chlorotoluene onto a mesoporous or macroporous zeolite and subsequent desorption of p-chlorotoluene (b) Treatment of an o-chlorotoluene-rich mixture of isomers with an isomerization catalyst. For the exclusive preparation of p-chlorotoluene first p-chlorotoluene is isolated and removed from the toluene chlorination product in stage (a). The remaining mixed isomers are then treated in stage (b) to increase their content of m- and p-isomers and then returned into stage (a). For the preparation of m-chlorotoluene and, if appropriate, additionally of p-chlorotoluene first the toluene chlorination product is treated in stage (b) to increase its content of m- and, if appropriate, p-isomer. p-Chlorotoluene is then isolated in stage (a) and returned to stage (b), or, if appropriate, removed. The remaining mixture essentially comprising o- and m-isomers is separated by distillation or adsorption and o-chlorotoluene is then returned into stage (b) and m-chlorotoluene is removed.

公开(公告)号：CH628331A5

公开(公告)日：1982-02-26

申请号：CH68877

申请日：1977-01-20

Applicant: HOECHST AG

Inventor： MAYER NORBERT DR ,  PFAHLER GERHARD DR ,  WIEZER HARTMUT DR

IPC: C08K5/00 ,  C07D211/66 ,  C08K5/3412 ,  C08K5/3435 ,  C08L23/00 ,  C08L101/00 ,  C08K5/34 ,  C08L23/02 ,  C08L101/04

公开(公告)号：DE2961140D1

公开(公告)日：1981-12-10

申请号：DE2961140

申请日：1979-08-06

Applicant: HOECHST AG

Inventor： WIEZER HARTMUT DR ,  KORBANKA HELMUT DR ,  MAYER NORBERT DR

IPC: C07D211/74 ,  C07D221/00 ,  C07D263/00 ,  C07D498/10 ,  C07D498/20 ,  C07D498/22 ,  C08K5/35

Abstract: For preparing 1-oxa-diaza-oxo-spirodecanes of the formula where X NOTEQUAL Y, standing for either a polyalkylpiperidone-4-cyanohydrine is reacted with an aldehyde or a ketone, or a polyalkyl-piperidone-4 is reacted with an aldehyde or ketone-cyanohydrine in a liquid aliphatic carboxylic acid as solvent.

公开(公告)号：DE2960335D1

公开(公告)日：1981-08-20

申请号：DE2960335

申请日：1979-03-12

Applicant: HOECHST AG

Inventor： MAYER NORBERT DR ,  PFAHLER GERHARD DR ,  SCHEIDL FRANZ DR ,  WIEZER HARTMUT DR

IPC: C07F9/141 ,  C07F9/201 ,  C07F9/24 ,  C07F9/59 ,  C07F9/6571 ,  C07F9/6574 ,  C08K5/51 ,  C08L23/00 ,  C08L27/00 ,  C07F9/15 ,  C07F9/21 ,  C07F9/65

Abstract: The invention provides novel esters of glycerol, in which one of the OH groups of the glycerol is esterified with a phenolcarboxylic acid, while the two other OH groups are esterified with phosphoric or phosphorous acid, substituted by long-chain alcohols, amines, mercaptans or phenol compounds. The products are suitable as light and heat stabilizers for plastics. They are distinguished by a high resistance to hydrolysis and extraction.

公开(公告)号：DE3743616A1

公开(公告)日：1988-08-04

申请号：DE3743616

申请日：1987-12-22

Applicant: HOECHST AG

Inventor： IHL GABRIELE DR ,  ROSCHER GUENTER DR ,  MAYER NORBERT DR

IPC: C07C51/00 ,  C07C51/09 ,  C07C57/44

Abstract: The invention relates to a process for the preparation of optionally substituted cinnamic acid by reacting ketene and optionally substituted benzaldehyde in the presence of zinc salts of carboxylic acids having a chain length of 6 to 18 C atoms as catalyst, followed by heating the reaction product to 100 to 250@C in the presence of acidic or basic catalysts. The reaction of the benzaldehyde with ketene in the presence of the zinc salts is carried out in the absence of water, carboxylic acids and carboxylic anhydrides.