63812-63-5Relevant articles and documents
Low alkaline polymerization type hindered amine light stabilizer and preparation method thereof
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Paragraph 0028; 0039; 0042, (2019/07/08)
The invention provides a compound as shown in a formula I. The compound is used for preparing a low alkaline polymerization type hindered amine light stabilizer. The hindered amine light stabilizer isexcellent in light stabilizing effect, great in molecular weight, extraction-resistant, low in alkalinity, good in compatibility and wide in application range. The invention also provides a preparation method and an application of the low alkaline polymerization type hindered amine light stabilizer.
A low-alkaline hindered amine light stabilizer and its preparation method
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Paragraph 0038-0039; 0044-0045; 0049-0050; 0053-0054, (2018/11/22)
The invention discloses a low-alkalinity hindered amine light stabilizer of which the structure is disclosed as Formula I. The low-alkalinity hindered amine light stabilizer has the advantages of excellent stabilizing effect, favorable compatibility, extraction resistance and wide application range. The invention also discloses a preparation method of the light stabilizer, which comprises the following steps: reacting N-(2,2,6,6-tetramethyl-4-piperidyl)amine and cyanuric chloride to obtain an intermediate; and reacting the intermediate and N,N'-bis[N-(2,2,6,6-tetramethyl-4-piperidyl)]-1,6-hexamethylenediamine to obtain a polymer, and methylating to obtain the product. The synthesis method is simple to operate, and has the advantages of high product yield, narrow molecular weight distribution and the like.
OLIGOMERIC STERICALLY HINDERED AMINES AND THEIR USE AS POLYMER STABILISERS
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Page/Page column 6, (2009/10/31)
This invention relates to new polypiperidine compounds of general formula (I) which give different kinds of polymer materials, in particular polyolefins, high stability towards oxidative action and photodegradation. The invention also relates to the processes used to prepare the compounds of formula (I).