نتایج جستجو برای: phenol resin
تعداد نتایج: 46302 فیلتر نتایج به سال:
From the overground parts of an endemic Sideritis species, S. stricta, 4 diterpenes, sideridiol (1), isosidol (2), isolinearol (3), and linearol (4); 2 flavonoid glycosides, isoscutellarein 7-O-[6′′′-O-acetyl-β-Dallopyranosyl-(1→2)]-β-D-glucopyranoside (5), and isoscutellarein 7-O-[6′′′-O-acetyl-β-D-allopyranosyl(1→2)]-6′′-O-acetyl-β-D-glucopyranoside (6); a methoxyflavone, xanthomicrol (7); an...
An outbreak of dermatitis in a car assembly factory is described; it affected 5o workers who handled rubber weatherstrips coated with an adhesive. The adhesive was found to contain para-tertiary butyl phenol (P.T.B.P.) formaldehyde resin. Of those patch tested 70% gave positive reactions to the adhesive and 65% to the resin. Improved methods of handling and personal protection succeeded in arre...
Creation of recycle-based society is an important factor in order to resolve geoenvironmental issues that are happening recently. A general recycling method for wooden materials is to make engineered board from wasted woods. For example, particle board, fiber board, ply board are used widely in architectural industry and so on. However, these boards contain chemical compounds such as urea resin...
Pyrolysis-gas chromatography-mass spectrometry (MS) was used to identify the major organic products produced by pyrolysis of three foundry sand resins: (i) Novolac and (ii) phenolic urethane (PU) (both phenol-formaldehyde based resins) and (iii) furan (furfuryl alcohol based resin). These resins are used in the metal casting industry as a "sand binder" for making cores (used to produce cavities...
Large scale synthesis of uniform self-assembly Fe(3)O(4)@phenol formaldehyde resin (PFR) core-shell nanowires with 80-100 nm in diameter and 20-30 microm in length can be realized by a one-pot hydrothermal process. The optical and magnetic properties of the as-synthesized Fe(3)O(4) nanostructures have been investigated.
We report two asymmetric ligands for the generation of structural and functional dinuclear metal complexes as phosphoesterase mimics. Two zinc(II) complexes, [Zn2(CH3L4)(CH3CO2)2](+) (CH3HL4 = 2-(((2-methoxyethyl)(pyridin-2-ylmethyl)amino)methyl)-4-methyl-6-(((pyridin-2-ylmethyl)amino)methyl)phenol) and [Zn2(CH3L5)(CH3CO2)2](+) (CH3HL5 = 2-(((2-methoxyethyl)(pyridine-2-ylmethyl)amino)methyl)-4-...
“Fachbereich fir Bauingenieurwesen, Labor fir Abfallwirtschaft, Siedlungswasserwirtschaft, Umweltchemie (LASU) , Fachhochschule Mtinster, D-48149 Mtinster, Germany ‘Pharmazeutisches lnstitut Poppelsdorf, Rheinische FriedrichWilhelmsUniversittit Bonn, Kreuzbergweg 26, D-531 15 Bonn, Germany ‘Departamento de Microbiologia, Facultad de Farmacia, Universidad de Granada, 18071 Granada, Spain dDepart...
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