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Briefly introduce the application of BASF UV absorber Tinuvin P
UV absorber is a kind of light stabilizer, which can absorb the ultraviolet part of sunlight and fluorescent light sources, but does not change itself. Because sunlight contains a large amount of ultr…
Briefly introduce what is epoxy resin structural adhesive
In building reinforcement projects, we often hear several common reinforcement methods, such as planting bars, bonded steel, carbon fiber, etc. These reinforcement methods use specific structural adhe…
Adhesion problem of water-based acrylic resin on PET substrate
Due to its own characteristics, the PET substrate makes it difficult for water-based acrylic resin to have good adhesion on its surface, especially for optical grade transparent PET films. , the surfa…
What are the common UV absorbers? Explain how it works
Currently the more ideal UV absorbers/light stabilizers are mostly compound types. In particular, the combination of salicylates, benzophenones, benzotriazoles, substituted acrylonitriles, triazines a…
Preparation method of dibenzo[b,f][1,4]thiazepine-11-[10H]one_Kain Industrial Additive
Background and overview[1] Dibenzo[b,f][1,4]thiazepin-11-[10H]one is a key intermediate in the preparation of quetiapine. Quetiapine, generally sold as the hemifumarate salt. It is an antipsychotic dr…
Preparation method of N1,N1,N4,N4-tetrakis(pyridin-4-yl)benzene-1,4-diamine_Kain Industrial Additive
Background and overview[1] N1,N1,N4,N4-tetrakis(pyridin-4-yl)benzene-1,4-diamine is an organic intermediate that can be synthesized from 4,4′-bipyridylamine and 1,4-dibromo Benzene is prepared i…
Preparation of 2-bromo-6-fluorophenol_Kain Industrial Additive
Background and overview[1] 2-Bromo-6-fluorophenol, also called 2-fluoro-6-bromophenol, can be used as a pharmaceutical synthesis intermediate. Using 2-fluorophenol as raw material, through sulfonation…
Preparation and application of calcium benzoate_Kain Industrial Additive
Background and overview[1] The chemical formula of calcium benzoate is Ca(C7H5O2)2·3H2O, molecular weight 336.36, colorless orthorhombic crystal, relative density 1.436, soluble in water, lost at 114°…
Preparation of 4-hydroxy-7-phenoxyisoquinoline-3-carboxylic acid methyl ester_Kain Industrial Additive
Background and overview[1] 4-Hydroxy-7-phenoxyisoquinoline-3-carboxylic acid methyl ester can be used as a pharmaceutical synthesis intermediate. Phenol is used as raw material to prepare the intermed…
Preparation and application of 4-bromobenzenesulfonamide_Kain Industrial Additive
Background and overview[1] 4-Bromobenzenesulfonamide can be used as a pharmaceutical synthesis intermediate. It can be prepared by the reaction of 4-bromobenzenesulfonyl chloride and ammonia water, or…
