10081-67-1 Usage
Description
Bis[4-(2-phenyl-2-propyl)phenyl]amine, also known as Antioxidant HS-911, is a high-efficiency, non-toxic antioxidant used to replace carcinogenic antioxidants such as D, A, and RD. It is effective in protecting various types of rubber and plastics from thermal aging, light aging, ozone aging, and damage caused by repeated deformation. HS-911 also has a passivating effect on heavy metal and transition metal.
Uses
Used in Rubber Industry:
Bis[4-(2-phenyl-2-propyl)phenyl]amine is used as an antioxidant in various types of rubber, including NR, IIR, SBR, NBR, BR, and CR, for its efficient protection against thermal aging. It is especially effective in protecting CR from thermal aging and can be used in insulative and protective rubber sheeting for color wires and cables, as well as common color rubber products, to reduce production costs.
Used in Plastic Industry:
Bis[4-(2-phenyl-2-propyl)phenyl]amine is used as a thermal stabilizer in a wide variety of applications, including polyolefins, styrenics, polyols, hot melt adhesives, lubricants, and polyamides. It provides excellent performance at processing temperatures and has strong synergy with other types of antioxidants such as phenolics and phosphites.
Used in Polyethylene, Polypropylene, and Polyvinyl Chloride:
Bis[4-(2-phenyl-2-propyl)phenyl]amine is used as an antioxidant in color masterbatch for polyethylene, polypropylene, and polyvinyl chloride.
Used in Polyurethane Foam, Rubber Wire, Cable, Food Package, and Adhesive:
Bis[4-(2-phenyl-2-propyl)phenyl]amine is used as an antioxidant in polyurethane foam, rubber wire, cable, food package, and adhesive, especially in neoprene colorful cable's jacket for its excellent resistance to heat, light, and aging.
Used in Polyether and Lubricating Oil:
Bis[4-(2-phenyl-2-propyl)phenyl]amine is used as a light-resistant and anti-aging antioxidant in polyether and as an antioxidant for lubricating oil.
Used in Neoprene Acrylate Rubber and Polyether Polyalcohol:
Bis[4-(2-phenyl-2-propyl)phenyl]amine is used for its resistance to aging caused by high temperature and light in neoprene acrylate rubber and polyether polyalcohol.
Used with Sulfur-Contained Antioxidant:
When used together with sulfur-contained antioxidant, Bis[4-(2-phenyl-2-propyl)phenyl]amine has an operational effect.
Flammability and Explosibility
Nonflammable
Synthesis
a, first raw material diphenylamine 50.0g into a reaction vessel equipped with a stirrer, reflux condenser, heated to diphenylamine added to melt;After completely melted, a mixed catalyst prepared from 1.5 g of magnesium chloride and 1.5 g of anhydrous stannous chloride was added, and heating and stirring were continued for mixing; b. After step a is mixed uniformly, 80.5 g of α-methylstyrene is added dropwise, and the dropwise addition time is 0.5 h. After the dropwise addition is completed, the reaction temperature is controlled to be 130-140° C., and the reaction is completed at this temperature for 1 h. The reaction is completed. ; c, after the end of the reaction, the resulting reaction solution was cooled, then add 60 of petroleum ether 140g and methanol 5g mixed solvent, dropped to 25 ± 2 °C cooling crystallization; d, after the end of crystallization, followed by filtration, petroleum ether and water washing, and then dried at 45 °C for 14 hours, dried to obtain the antioxidant 4,4 '- bis (α, α- dimethyl benzyl) diphenylamine . The product obtained in this example was white crystal with a yield of 85% and a purity of 98.24%
Check Digit Verification of cas no
The CAS Registry Mumber 10081-67-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,0,8 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 10081-67:
(7*1)+(6*0)+(5*0)+(4*8)+(3*1)+(2*6)+(1*7)=61
61 % 10 = 1
So 10081-67-1 is a valid CAS Registry Number.
InChI:InChI=1/C30H31N/c1-29(2,23-11-7-5-8-12-23)25-15-19-27(20-16-25)31-28-21-17-26(18-22-28)30(3,4)24-13-9-6-10-14-24/h5-22,31H,1-4H3
10081-67-1Relevant articles and documents
Mesostructured aluminosilicate alkylation catalysts for the production of aromatic amine antioxidants
Liu, Yu,Kim, Seong Su,Pinnavaia, Thomas J.
, p. 381 - 387 (2004)
The conversion of diphenylamine (DPA) and α-methylstyrene (AMS) to the antioxidants mono- and dicumenyldiphenylamine was carried out over mesostructured aluminosilicate catalysts with hexagonal (2% Al-MCM-41), wormhole (2% Al-HMS), and lamellar/vesicular (2% Al-MSU-G) framework structures. A commercial acid-treated clay catalyst, Engelhard F-20, was included for comparison perposes. The yields of the desired antioxidant, namely dicumenyldiphenylamine (DCDPA), increased in the order F-20 (~57%)3PW12O40·xH2O (PW 12) supported on mesostructured wormhole HMS and lamellar/vesicular MSU-G silica, also was examined as a catalyst for DCDPA production. The supported catalyst systems, however, afforded lower maximum yields of DCDPA (~73-80%) in comparison to the mesostructured aluminosilicate catalysts. The exceptionally high yields of alkylated products obtained with the mesoporous aluminosilicate catalysts in comparison to the F-20 clay and the supported PW12 catalysts are attributable in part to intermediate acid strengths that minimize completing dimerization reactions of the AMS alkylating agent. Also, the pore structures of the mesostructured catalysts facilitate access to active sites on the framework walls and provide more efficient transport of reagents to framework reaction centers. Also, the regular mesoporosity of the aluminosilicate catalysts makes these structures less prone to pore plugging and to the masking of acidity through the adsorption of the high molecular weight reaction products.
Zinc-Catalyzed Alkylation of Aromatic Amines in Continuous Flow
Bo, Xiaofan,Mao, Mengmei,Wan, Li,Xin, Zhong,Yao, Hanlin,Zhang, Le
, p. 2078 - 2084 (2020)
A practical approach to the synthesis of antioxidant 4,4′-dicumyldiphenylamine (DCDPA) and its derivatives by Friedel-Crafts alkylation of aromatic amines was developed under continuous flow conditions. Because of the enhanced mass and heat transfer features of the microreactor, the reaction time was significantly reduced in contrast to a batch mode. The reaction was carried out using a 1:6 v/v ethanol/Cl(CH2)2Cl cosolvent system with ZnCl2 as the catalyst to achieve satisfactory yields. This is an effective method for the synthesis of DCDPA and its derivatives with excellent para selectivity that has the merits of shorter reaction time, easy operation, and straightforward scale-up.
Preparation method of diphenylamine rubber aging inhibitor
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Paragraph 0041; 0059-0060, (2018/01/14)
The invention relates to a preparation method of a diphenylamine rubber aging inhibitor. An immobilized catalyst is prepared from a Lewis acidic ionic liquid by supporting the Lewis acidic ionic liquid on the surface of a molecular sieve and is applied to an alkylation reaction of diphenylamine. The method can have remarkable progress in the aspects of yield, purity, service life of the catalyst and other aspects as compared with the prior art.