Get instant access to Irganox® L technical datasheet. It is a multifunctional liquid phenolic antioxidant for processing and long-term thermal stabilization. Multifunctional phenolic antioxidant for processing and long-term thermal stabilization of elastomers, plastics and related products. NameMethyl-4,6-bis(octylsulfanylmethyl)phenol,CASProperties: Molecular Fomula:C25H44OS2,Molar Mass,Densityg/cm 3.
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Antioxidant Irganox , CAS# Supplier | China Baoxu
In an embodiment, the use of a CIA such as CSL may reduce color formation in HIPS comprising of one or more oxidizing agents such as peroxides, hydroperoxides or peroxide mixtures, metallic stearates or combinations thereof. The method of claim 4 wherein the calcium stearoyl lactate is present in an amount of from ppm to ppm. For example, during the production of butadiene antioxidants are often included as stabilizers. For example, the styrenic polymer composition can be prepared using an upflow reactor.
In one embodiment, both a metallic stearate e.
Synthesis of Irganox 《Fine Chemicals》年04期
Additional details regarding solution or mass polymerization processes and residence times have been previously described herein. Resins were prepared using ppm Zinc Stearate ZnStKBR S and a two initiator package and compared to resins prepared using the D elastomer and a one initiator package. In an embodiment, the styrenic polymer composition comprises an initiator irvanox the byproducts of an initiator reaction.
The polymeric composition emerging from the prepolymerization reactor may then enter a second reactor such as described previously or other reactor located downstream of the prepolymerization reactor where oxidizing agents such as a metallic stearate may be introduced.
This type of interaction is believed to irgqnox the oxidation of igranox antioxidant species to a highly-colored quinone-type structure. We should be obliged if you would forward fuller details of the range together with your current price-list quoting terms for overseas delivery and terms of cooperation.
To Zibo Muhui Trading Co.
Irganox® 1520 L
The effectiveness of this product used in a wide range of elastomers is exceptional along with extensive food contact approvals. The method of claim 1 wherein the antioxidant comprises a phenol, a catechol, irgnaox TNPP2,6 ditertiarybutylmethyl phenol, Octadecyl 3,5-Di- tert -butylhydroxyhydrocinnamate, 4-bis[ octylthio methyl]-o-cresol, or combinations thereof.
CSL, which is widely commercially available, may be obtained by combining lactic acid and stearic acid, and then reacting the product with calcium hydroxide to make the calcium salt. These results are graphically represented in FIGS. While embodiments of the disclosure have been shown and described, modifications thereof can be made by one skilled in the art without departing from the spirit and teachings of the disclosure.
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The selection of initiator and effective amount will depend on numerous factors e. Low temperature initiators for improving the rubber phase volume of HIPS formulations. In some embodiments, the antioxidant is introduced indirectly to the reaction mixture as a component in the elastomer formulation. In an embodiment, the residence time or the amount of time the reaction irganoc is held within the reactor system may jrganox from 0. In an embodiment, the styrenic polymer composition may comprise a metallic stearate such as zinc stearate.
Solution polymerization refers to a polymerization process in which the monomers and polymerization initiators are dissolved in a non-monomeric liquid solvent at the beginning of the polymerization reaction. Alternatively, the reaction mixture comprises styrene and an oxidizing agent.
The discussion of a reference herein is not an admission that it is prior art to the present disclosure, especially any reference that may have a publication date after the priority date of this application. It is non-staining, non-discoloring, low in volatility, and stable to light and heat. The method of claim 18 wherein the first reactor vessel is a continuously stirred tank reactor and the second reactor vessel is a plug flow reactor.
We’re sorry, but the industry you have selected is not currently available in your chosen language. In such embodiments, the CIA may be introduced to the composition prior to the addition of an antioxidant to inhibit or prevent CFC formation.
Both alternatives are intended to be within the scope of the claim. The HIPS that was produced contained 8. In an embodiment, the polymerization of styrene is carried out in a solution or mass polymerization process. I would like to purchase 1502 item.
In such embodiments, the calcium stearoyl lactate may irbanox present in an amount of from ppm to ppm, alternatively from ppm to ppm, alternatively from ppm to ppm, alternatively from ppm to ppm. The content of such third party sites is not within our control, and we cannot and will not take responsibility for the information or content. Process for the production of elastomeric diene polymers irgganox improved properties. In an embodiment, any initiator capable of free radical formation that facilitates the polymerization of styrene may be employed.
Organic polymeric materials stabilized with acylated hydroxy acid type compounds. In an embodiment, a polymerization reactor for the production of an impact-modified styrene comprising a plurality of reactors may have the first reactor e. Such elastomer-reinforced polymers are commonly referred to as impact modified or high impact polystyrene HIPS while a styrene homopolymer may be referred to as general-purpose polystyrene GPPS.
In an embodiment, a mold release agent such as for example Irtanox may be present in the reaction mixture in the range irganlx from ppm to ppm, alternatively from ppm to ppm, alternatively from ppm to ppm. In an alternative embodiment, the CIA may riganox introduced to the polymerization process at some time subsequent to the dissolution of the elastomer. Improved methods of making styrenic polymeric compositions and methods of using same.
It effectively protects the substrate against thermooxidation during processing and long term heat aging. Thus in the Hunter scale, L measures lightness and varies from for perfect white to zero for black, approximately as the eye would evaluate it.
A method of improving the color of a high impact polystyrene comprising preparing a reaction mixture comprising styrene, elastomer and at least one antioxidant, and introducing to the reaction mixture a color improving additive prior to the addition of any oxidizing agents to the reaction mixture.
The polymerized product effluent from the second reactor may be further processed as is known to one of ordinary skill in the art and described in detail in the literature. Key product areas of formulation additives, rheology modifiers, light stabilizers, and antioxidants significantly enhance the BASF product portfolio for these markets. US USB2 en The presence of the CIA e.
The numerical results of these experiments are given in Table 2. If needed, it also can be used with other additives such as secondary antioxidants, benzofuranone, light stabilizers, and other functional stabilizers. Are you a distributor who is interested in being listed here? For example and without limitation, the color of the polymer composition may be assessed using a colorimeter.
Process for the stabilization of a stabilizer mixtures for recycled plastic mixtures.