1709-70-2 Usage
Characterization
Antioxidant 1330 – a sterically hindered phenolic antioxidant – is as highly effective stabilizer for organic substrates such as polymers, synthetic fibers, elastomers, adhesives, waxes, oils and fats. It protects these substrates against thermo-oxidative degradation.
Applications
Antioxidant 1330 is used in polyolefins e.g. polyethylene, polypropylene, polybutene for the stabilization of pipes, molded articles, wires and cables, dielectric films, etc.. Furthermore, it is applied in other polymers such as engineering plastics like linear polyesters, polyamides, and styrene homoand copolymers. It may also be used in PVC, polyurethanes, elastomers, adhesives, and other organic substrates.
Features/benefits
Antioxidant 1330 has good compatibility with most substrates, high resistance to extraction and is odorless. It offers also excellent dielectrical properties. The product can be used in combination with other additives such as costabilizers (e.g. thioethers, phosphites, phosphonites), light stabilizers and other functional stabilizers. The effectiveness of the blends of Irganox 1330 with Irgafos 168 (Irganox B-blends) is particularly noteworthy. Irganox 1330 is particularly recommended for polyolefin applications requiring good water extraction resistance combined with low color development. Furthermore, Irganox 1330 reduces water carry-over in polypropylene tape extrusion.
Product forms
Antioxidant 1330 ? ? ? white, free-flowing powder
Antioxidant 1330 FF??? white, free-flowing granules
Guidelines for use
In polyolefins, the concentration levels for Antioxidant 1330 range typically between 0.05 % and 0.3 % depending on substrate, processing conditions and long-term thermal stability requirements. The optimum level is application specific. Concentration levels of Antioxidant 1330 in hot melt adhesives range from 0.2 % to 1 %, in synthetic tackifier resins, Irganox 1330 concentration ranges between 0.1 % and 0.5 %. Extensive performance data of Irganox 1330 in various organic polymers and applications are available upon request.
Health & Safety
Antioxidant 1330 exhibits a very low order of oral toxicity and does not present any abnormal problems in its handling or general use. Detailed information on handling and any precautions to be observed in the use of the product(s) described in this leaflet can be found in our relevant health and safety information sheet.
Uses
Different sources of media describe the Uses of 1709-70-2 differently. You can refer to the following data:
1. 1,3,5-trimethyl-2,4,6-tris(3,5-di-t-butyl-4-hydroxybenzyl)benzene, commercially known as Irganox 1330 and Ethanox 330, is a sterically hindered phenolic antioxidant that protects organic substrates against thermo-oxidative degradation.
Irganox 1330 / Ethanox 330 is used in polyolefins (e.g., polyethylene, polypropylene, polybutene) for the stabilization of pipes, molded articles, wires and cables, dielectric films and in other polymers such as engineering plastics like linear polyesters, polyamides, and styrene homo- and copolymers. It may also be used in PVC, polyurethanes, elastomers, adhesives, and other organic substrates.
This product has been regulated by the FDA for use in all polymers at a maximum level of 0.5% except for nylon resins where the maximum use level is 1%. The resultant polymers would conceivably contact all food types with no temperature restrictions.
2. 1,?3,?5-?Trimethyl-?2,?4,?6-?tris(3,?5-?di-?tert-?butyl-?4-?hydroxybenzyl)?benzene is a phenolic antioxidant that is used as a polymer additive found in polyethylene, polypropylene, and polyvinyl chloride packaging materials.
3. Antioxidant for polypropylene, high-density
polyethylene, spandex fibers, polyamides, and specialty
rubbers.
Chemical Properties
Free-flowing, white, crystalline powder;
no odor. Partially soluble in benzene and
methylene chloride; insoluble in water. Permissible
in contact with food products. Combustible.
General Description
1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene(HEMA) is an antioxidant that can be used to prevent the oxidative degradation of plastics.
Flammability and Explosibility
Nonflammable
Safety Profile
Moderately toxic by
ingestion. An experimental teratogen. When
heated to decomposition it emits acrid
smoke and irritating fumes.
Check Digit Verification of cas no
The CAS Registry Mumber 1709-70-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,0 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1709-70:
(6*1)+(5*7)+(4*0)+(3*9)+(2*7)+(1*0)=82
82 % 10 = 2
So 1709-70-2 is a valid CAS Registry Number.
InChI:InChI=1/C54H78O3/c1-31-37(22-34-25-40(49(4,5)6)46(55)41(26-34)50(7,8)9)32(2)39(24-36-29-44(53(16,17)18)48(57)45(30-36)54(19,20)21)33(3)38(31)23-35-27-42(51(10,11)12)47(56)43(28-35)52(13,14)15/h25-30,55-57H,22-24H2,1-21H3
1709-70-2Relevant articles and documents
Preparation method of antioxidant 330
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Paragraph 0027-0034, (2021/01/29)
The invention relates to the technical field of chemical material processing, in particular to a synthetic method for preparing a hindered phenol antioxidant 330. The method comprises the following steps: reducing 3, 5-di-tert-butyl-4-hydroxybenzoic acid serving as an initial raw material into 3, 5-di-tert-butyl-4-hydroxybenzyl alcohol, and condensing the 3, 5-di-tert-butyl-4-hydroxybenzyl alcoholwith mesitylene under the action of an acid catalyst to generate the antioxidant 330. In the condensation reaction process, the phase transfer catalyst polyethylene glycol is utilized to improve thecatalytic effect of the concentrated sulfuric acid and reduce the consumption of the concentrated sulfuric acid, thereby having higher industrial value. The reaction yield is high, the optimal yield can reach 95%, the purity of the obtained reduction product is high, and in the industrial process, aftertreatment is simple. Therefore, the antioxidant 330 is synthesized by taking 3, 5-di-tert-butyl-4-hydroxybenzoic acid as an initial raw material and reducing 3, 5-di-tert-butyl-4-hydroxybenzoic acid into alcohol, and the method is a process route with relatively high industrial value.
Novel method for synthesizing antioxidant 330 by catalyst
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Page/Page column 12-18, (2018/09/28)
The invention aims at providing a method for synthesizing an antioxidant 330. Manganese dioxide-titanium dioxide-molecular sieve loaded phosphoric acid and ferroferric oxide-molecular sieve loaded phosphoric acid catalysts are prepared; under the existence of manganese dioxide-titanium dioxide-molecular sieve loaded phosphoric acid catalysts, 2,6-butylated hydroxytoluene and methyl alcohol are used as preparation raw materials to synthesize 3,5-di-tert-4-hydroxybenzyl ether; the methyl alcohol is used as preparation raw materials to synthesize 3,5-di-tert-4-hydroxybenzyl ether; next, under theexistence of the iron oxide-molecular sieve loaded phosphoric acid catalysts, the 3,5-di-tert-4-hydroxybenzyl ether and mesitylene react to obtain the antioxidant 330. The yield of the synthesized antioxidant is high; the purity is high.
Antioxidant hindered phenol compound 330 method for the synthesis of (by machine translation)
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Paragraph 0065-0066; 0071; 0074; 0077; 0082; 0090; 0095, (2019/02/02)
The invention provides a synthesis method for a hindered phenolic compound antioxidant 330; the method comprises the following steps: in the presence of a ternary composite catalyst and a diluted hydrochloric acid aqueous solution with specific concentration and amount, a compound represented by the following formula (I) and a compound represented by the following formula (II) are subjected to a reaction in a solvent, and thus the antioxidant 330 is obtained. In the synthesis method, through suitable selection and combination of a catalyst system and a solvent system, the target product is obtained with high yield; and the synthesis method is quite suitable for industrialization large-scale production and application and has a quite broad market prospect.
