992-53-0Relevant academic research and scientific papers
4-Formyl amino-n-methylpiperidine derivatives, the use thereof as stabilisers and organic material stabilised therewith
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, (2008/06/13)
The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) where the variables are as defined in the Description, to a process for preparing these piperidine derivatives, to the use of these piperidine derivatives of the invention, or prepared according to the invention, for stabilizing organic material, in particular for stabilizing plastics or coating materials, and also to the use of these piperidine derivatives of the invention, or prepared according to the invention, as light stabilizers or stabilizers for wood surfaces. The present invention further relates to stabilized organic material which comprises these piperidine derivatives of the invention or prepared according to the invention.
2-(2′-hydroxyphenyl)benzotriazoles used as U.V. stabilizers
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, (2008/06/13)
2-(2′-hydroxyphenyl)benzotriazoles having general formula (I). The above 2-(2′-hydroxyphenyl)benzotriazoles are useful as light stabilizers for organic polymers.
2-(2′-hydroxyphenyl) benzotriazoles containing a 2,4-imidazolidinedione group and process for their preparation
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, (2008/06/13)
2-(2′-hydroxyphenyl)benzotriazoles having general formula (I). The above 2-(2′-hydroyzphenyl)benzotriazoles having general formula (I) are useful as heat, oxygen and light stabilizers for organic polymers. In particular they are useful as UV stabilizers for organic polymers.
2-(2'Hydroxyphenyl) benzotriazoles and process for their preparation
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, (2008/06/13)
2-(2'-hydroxyphenyl)benzotriazoles having general formula (I): The above 2-(2'-hydroxyphenyl)benzotriazoles can be used as light stabilizers for organic polymers.
2-(2'Hydroxyphenyl) benzotriazoles and their use as light stabilizers for organic polymers
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, (2008/06/13)
2-(2'-hydroxyphenyl)benzotriazoles having general formula (I): The above 2-(2'-hydroxyphenyl)benzotriazoles can be used as light stabilizers for organic polymers.
Piperidine compounds containing silane groups for use as stabilisers for organic materials
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, (2008/06/13)
The present invention relates to novel piperidine compounds of the formula (I) STR1 in which A is e.g. a group of the formula STR2 where R4 is e.g. hydrogen or methyl, X3 is e.g. --O-- or --NH-- and R5 ' is e.g. ethylene, propylene or decamethylene, R1 is e.g. methyl, methoxy, ethoxy or OH, R2 and R3 are e.g. methyl, m+n is e.g. a number from 1 to 40, n varies e.g. from zero to 50% of the sum m+n, X1 is e.g. as defined for R1 or is a group (CH3)3 SiO-- and X2 is e.g. hydrogen, methyl, ethyl, a group (CH3)3 Si-- or a group STR3 and, when m+n is a number from 3 to 10, X1 and X2 together also form a direct bond. The compounds of the formula (I) are effective in stabilising an organic material against thermal, oxidative and light-induced degradation.
Piperidine derivatives
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, (2008/06/13)
New 1- and 4-substituted piperidines are stabilizers for organic material. They are produced by reacting corresponding 1-substituted piperidinols with acid chlorides or corresponding 4-substituted piperidines with a compound introducing into the 1-position a residue.
Piperidine derivatives
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, (2008/06/13)
New piperidine derivatives of 1,3-pyrimidine and 1,3,5-triazine are used as stabilizers for organic materials, especially for polymers.
Substituted piperazines and polymeric compositions stabilized thereby
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, (2008/06/13)
Substituted piperazines are stabilizers for synthetic polymeric materials normally subject to deterioration caused by ultraviolet light. The compounds are prepared by the alkylation reaction between a substituted piperazine dione and an organic halide followed by reduction with lithium aluminum hydride. Polymeric compsitions containing these stabilizers may also contain a hindered phenolic compound. A typical embodiment is 15,15'-dodecamethylene-bis(7,15-diazadispiro[5,1,5,3]hexadecane).
Substituted piperidin-4-ols
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, (2008/06/13)
Disclosed are stabilized compositions comprising a polymer, especially polyolefines, and a minor proportion of a 1,2,2,6,6-pentasubstituted piperidin-4-ol. The new compositions possess good light stability.
