公开(公告)号：AT142214T

公开(公告)日：1996-09-15

申请号：AT90111176

申请日：1990-06-13

Applicant: HOECHST AG

Inventor： SCHMAILZL GEORG DR ,  PFAHLER GERHARD DR ,  NOWY GUENTHER DR

IPC: C07D498/10 ,  C07D519/00 ,  C08G73/06 ,  C08K5/34 ,  C08K5/3432 ,  C08K5/3435 ,  C08K5/35 ,  C08K5/353 ,  C08L23/00 ,  C08L87/00 ,  C08L101/00 ,  C07D498/00

Abstract: Novel polymeric polyalkyl-1-oxa-diazaspirodecanes of the formula I (I) are very effective stabilizers for natural any synthetic polymers. They have very low volatility, high migration resistance and high thermal stability.

公开(公告)号：CZ9500430A3

公开(公告)日：1995-10-18

申请号：CZ43095

申请日：1995-02-17

Applicant: HOECHST AG

Inventor： GAA KARL DR ,  NOWY GUNTER DR ,  SCHMAILZL GEORG DR

IPC: C07D498/10 ,  C07D519/00 ,  C08G73/06 ,  C07D498/20 ,  C07D498/22

CPC classification number: C07D498/10 ,  C07D519/00 ,  C08G73/06 ,  C08G73/0688

公开(公告)号：CS9102394A3

公开(公告)日：1992-02-19

申请号：CS239491

申请日：1991-07-31

Applicant: HOECHST AG

Inventor： SCHMAILZL GEORG DR

IPC: B01J31/02 ,  C07D221/00 ,  C07D263/00 ,  C07D498/10 ,  C07D498/20 ,  C07D519/00 ,  C08K5/35

CPC classification number: C07D498/10

公开(公告)号：DE3940572A1

公开(公告)日：1991-06-20

申请号：DE3940572

申请日：1989-12-08

Applicant: HOECHST AG

Inventor： SCHMAILZL GEORG DR ,  WIEDEMANN JOSEF DR ,  PFAHLER GERHARD DR ,  NOWY GUENTHER DR

IPC: B01J31/02 ,  C07B61/00 ,  C07C67/03 ,  C07C67/343 ,  C07C69/732 ,  C08K5/13 ,  C08L23/00

Abstract: By dividing the known condensation of acetoacetic acid diol esters with phenols into two process steps, a reduction in the cost of the entire process can be achieved. Methyl acetoacetate is first condensed with a phenol and the methyl 3,3-bis(4-hydroxyalkylphenyl)butanoate formed is reacted with the desired diol in the presence of a transesterification catalyst. In this way only one acetoacetic ester is necessary for various final products. The final products are useful stabilizers for plastics, in particular polyolefins.

公开(公告)号：DE59010478D1

公开(公告)日：1996-10-10

申请号：DE59010478

申请日：1990-06-13

Applicant: HOECHST AG

Inventor： SCHMAILZL GEORG DR ,  PFAHLER GERHARD DR ,  NOWY GUENTHER DR

IPC: C07D498/10 ,  C07D519/00 ,  C08G73/06 ,  C08K5/34 ,  C08K5/3432 ,  C08K5/3435 ,  C08K5/35 ,  C08K5/353 ,  C08L23/00 ,  C08L87/00 ,  C08L101/00

Abstract: Novel polymeric polyalkyl-1-oxa-diazaspirodecanes of the formula I (I) are very effective stabilizers for natural any synthetic polymers. They have very low volatility, high migration resistance and high thermal stability.

公开(公告)号：ES2071873T3

公开(公告)日：1995-07-01

申请号：ES91112596

申请日：1991-07-26

Applicant: HOECHST AG

Inventor： SCHMAILZL GEORG DR

IPC: B01J31/02 ,  C07D221/00 ,  C07D263/00 ,  C07D498/10 ,  C07D498/20 ,  C07D519/00 ,  C08K5/35

Abstract: The invention relates to an environment-friendly process for the preparation of compounds of the following formula in which R and R are preferably H or alkyl, R and R are preferably alkyl or cycloalkyl, R and R are preferably hydrogen or methyl, and R is, in particular, alkyl. In this process, the additional use of a phase transfer catalyst can be dispensed with without suffering yield losses.

公开(公告)号：AT119533T

公开(公告)日：1995-03-15

申请号：AT91112596

申请日：1991-07-26

Applicant: HOECHST AG

Inventor： SCHMAILZL GEORG DR

IPC: B01J31/02 ,  C07D221/00 ,  C07D263/00 ,  C07D498/10 ,  C07D498/20 ,  C07D519/00 ,  C08K5/35

Abstract: The invention relates to an environment-friendly process for the preparation of compounds of the following formula in which R and R are preferably H or alkyl, R and R are preferably alkyl or cycloalkyl, R and R are preferably hydrogen or methyl, and R is, in particular, alkyl. In this process, the additional use of a phase transfer catalyst can be dispensed with without suffering yield losses.

公开(公告)号：CS239491A3

公开(公告)日：1992-02-19

申请号：CS239491

申请日：1991-07-31

Applicant: HOECHST AG

Inventor： SCHMAILZL GEORG DR

IPC: B01J31/02 ,  C07D221/00 ,  C07D263/00 ,  C07D498/10 ,  C07D498/20 ,  C07D519/00 ,  C08K5/35

Abstract: The invention relates to an environment-friendly process for the preparation of compounds of the following formula in which R and R are preferably H or alkyl, R and R are preferably alkyl or cycloalkyl, R and R are preferably hydrogen or methyl, and R is, in particular, alkyl. In this process, the additional use of a phase transfer catalyst can be dispensed with without suffering yield losses.

公开(公告)号：DE4024415A1

公开(公告)日：1992-02-06

申请号：DE4024415

申请日：1990-08-01

Applicant: HOECHST AG

Inventor： SCHMAILZL GEORG DR

IPC: B01J31/02 ,  C07D221/00 ,  C07D263/00 ,  C07D498/10 ,  C07D498/20 ,  C07D519/00 ,  C08K5/35

Abstract: The invention relates to an environment-friendly process for the preparation of compounds of the following formula in which R and R are preferably H or alkyl, R and R are preferably alkyl or cycloalkyl, R and R are preferably hydrogen or methyl, and R is, in particular, alkyl. In this process, the additional use of a phase transfer catalyst can be dispensed with without suffering yield losses.

公开(公告)号：DK0485891T3

公开(公告)日：1997-10-27

申请号：DK91119003

申请日：1991-11-07

Applicant: HOECHST AG

Inventor： SCHMAILZL GEORG DR ,  PFAHLER GERHARD DR

IPC: C08F6/02 ,  C08K5/04 ,  C08K5/06 ,  C08L101/00

Abstract: In synthetic moulding compositions, especially those based on olefin polymers, which contain phenolic stabilisers and metal ions as catalyst residues, the discoloration at the processing temperature is reduced when they contain triglycerol or ditrimethylolpropane as catalyst inactivators.