Lovibond ® Colour Measurement Tintometer ® Group. Tintometer. Home · About Us Comparator System , Visual Grading · EComparator Series. Accurate test kits for routine water analysis – COMPARATEUR LOVIBOND Glass Sample Cells are suitable for use with the Comparator +. Retour à la Collection. Comparateur. Details. Numéro d’artefact: ; Modèle: Lovibond ; Fabricant: TINTOMETER LTD. Lieu du fabricant.
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Rl and R2 radicals may be unsubstituted or substituted, e. By material based on polyvinyl chloride, in behind the composi.
Any type of vinyl chloride homopolymer may be suitable regardless of its mode of preparation: Many vinyl chloride copolymers can also be stabilized against the effects of heat by means identical to those used for homopolymers. Homopolymers or copolymers can be either “rigid” or “flexible”. All habituellemeIl 0200 plasticisers for PVC plastiier may agree.
Among the salts commonly used one bit does include acetates, diacetates, stearates, oleates, laurates, palmitates, benzoates, hydroxystearate, the comparateut hexanoates, phenates. On les emploie sous forme de couples tels lovibohd They are used as couples such as: Any polyol may be suitable, however are preferred aliphatic compounds having at least 2, compaarteur preferably 4, hydroxyl groups.
Amounts of between 0. This gives particula does lovibons results with stearoylbenzoylmethane or benzoyl acetone. They are used in proportions of between 0. All the usual methods known in this field may be suitable for mixing ingredients. This temperature can be, for example, about C. Les ckmparateur suivants illustrent l’invention sans toutefois la limiter.
The following examples illustrate the invention without limiting it. Samples were taken in the resulting sheet 2. Lon noted 20 being black and opaque through the full range of yellow and brown colors become darker. This gives the following results: Bottle blow molding is performed with this mixture. On e-ffectue ainsi i8 passages successi. We e-ffectue and i8 successi. To achieve the same effect on the coloring bottles it is necessary to replace the system stabilizer above with 0. Thermal breakdown time does’re more than 60 minutes and the boutei.
It is necessary to add 0. We also note the breakdown time sample become black. On constate l’influence du taux de calcium qui permet d’allonger le temps de claquage. There is the influence of calcium that can lengthen the breakdown time.
It exis-however you but to a lesser degree. This composition is used in particular to obtain shaped articles which exhibit excellent thermal stability and a very low initial coloration. The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: Composition according to claim 1, characterized in that the radicals R1 and R2 are substituted with halogen atoms.
Composition according to claim 1, characterized in that the aryl or cycloaliphatic radicals represented by R1 and R2 are substituted with methyl or ethyl radicals. Composition according to claim 1, characterized in that the radicals R1 and R2 are modified by the comparrateur of one or more -O- linkages, -?
The composition of claim 1, characterized in that it contains from 0. Composition according to claim 1, characterized in that R is an alkyl radical having from 2 to 14 carbon atoms. Composition according to Claim 6, characterized in that the dihydropyridine is 2,6-dimethyl-3,5-diethyl-carboxylate 1,4-dihydropyridine or 2,6-dimethyl-3,5-dihydropyridine-dilaurylcarboxylate commparateur 4.
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A composition according to claim 1, characterized in that the. Improving stability at moderate temperatures of motor vehicle components shaped from polyvinyl chloride resin compositions. Stabilizer composition for vinyl chloride-based resin, vinyl chloride-based resin composition using the stabilizer composition and molded article obtained from the resin composition. Beta-ketoester substituted diorganopolysiloxanes and PVC stabilzers comprised thereof. Thermally modified polymers of polypropylene and other polymers and process for preparing the same.
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Process for increased peroxide efficiency in controlled rheology polypropylene resin. Polyol carboxyalkylthioalkanoamidophenol compounds and organic material stabilized therewith.
Cyclodextrin inclusion compounds containing phenolic antioxidants and their use in polymers. Process for preparing moisture-curable organopolysiloxane compositions by condensing organosilicen compounds having silicon-bound hydroxyl groups, alkoxy-silylated cross-linking agents and a substitituted hydroxyl amine; compositions and their use in obtaining cured materials.
Stabiliser compositions for halogenated polymers containing beta-diketone, hydrotalcite and dihydropyridine, and polymers stabilized therewith. Radiation resistant polyolefin, pref.
Stabilizers for halogen-containing organic polymers comprising an organotin mercaptide and a diester of an unsaturated dicarboxylic acid.