57100-74-0

Usage

Uses

Used in Polymer and Plastics Industry:
2,2-Bis(3-cyclohexyl-4-hydroxyphenyl)propane is used as an antioxidant for [application reason] to provide heat and light stability and prevent degradation caused by oxidative processes in the production of polymers and plastics.
Used in Epoxy Resin Production:
In the epoxy resin industry, 2,2-Bis(3-cyclohexyl-4-hydroxyphenyl)propane is used as a key component for [application reason] to enhance the heat and light resistance of the final product, ensuring its durability and performance in various applications.
Used in Polyurethane Production:
2,2-Bis(3-cyclohexyl-4-hydroxyphenyl)propane is used as a raw material in the polyurethane industry for [application reason] to improve the stability and performance of polyurethane products, which are widely used in various sectors such as automotive, construction, and furniture.
Used in Silicone Rubber Production:
In the silicone rubber industry, 2,2-Bis(3-cyclohexyl-4-hydroxyphenyl)propane is used as an additive for [application reason] to enhance the heat and light resistance of silicone rubber, making it suitable for high-temperature applications and outdoor use.

Upstream product

• 119-42-6 2-cyclohexylphenol 
• 67-64-1 acetone 

Relevant academic research and scientific papers

BISPHENOL COMPOSITION CONTAINING AROMATIC ALCOHOL SULFONATE AND METHOD FOR PRODUCING SAME, POLYCARBONATE RESIN AND METHOD FOR PRODUCING SAME, AND BISPHENOL PRODUCTION METHOD

A bisphenol composition including a specific amount of aromatic alcohol sulfonate, and a simple method of producing it are provided. Also provided is a method of producing a polycarbonate resin in which, by using the bisphenol composition including a specific amount of aromatic alcohol sulfonate, melt polymerization reaction can be efficiently allowed to proceed to produce a polycarbonate resin having an excellent color tone. A bisphenol composition including an aromatic alcohol sulfonate at not less than 0.1 ppb by mass with respect to a bisphenol. A method of producing a bisphenol composition, including reacting a ketone or an aldehyde with an aromatic alcohol in the presence of sulfuric acid to produce a bisphenol composition. A method of producing a polycarbonate resin, including producing a polycarbonate resin using the bisphenol composition. A polycarbonate resin including a specific amount of aromatic alcohol sulfonate.

Processes for producing aromatic polycarbonate oligomer and aromatic polycarbonate

A process for producing continuously an aromatic polycarbonate oligomer by reacting an aromatic dihydroxy compound and an alkali metal base or an alkaline earth metal base with a carbonyl halide compound comprises: (1) feeding continuously to a tank reactor an aromatic dihydroxy compound, water, a molecular weight controlling agent, a polymerization catalyst, a carbonyl halide compound, and an organic solvent, and an alkali metal base or an alkaline earth metal base in an amount of 1.15-1.6 equivalents based on the aromatic dihydroxy compound, (2) carrying out the reaction with a residence time as defined by the following formula, where X is an amount of the polymerization catalyst in terms of mole % based on the amount of mole of the aromatic dihydroxy compound fed per unit time, and Y is a residence time (min.), and (3) continuously withdrawing the reaction mixture from the tank reactor to obtain an aromatic polycarbonate oligomer having a number average molecular weight of 1,000-10,000. An aromatic polycarbonate is produced by polycondensation of the aromatic polycarbonate oligomer.

Method for preparing aromatic bischloroformate compositions

Bischloroformate oligomer compositions are prepared by passing phosgene into a heterogeneous aqueous-organic mixture containing at least one dihydroxyaromatic compound, with simultaneous introduction of a base at a rate to maintain a specific pH range and to produce a specific volume ratio of aqueous to organic phase. By this method, it is possible to employ a minimum amount of phosgene. The reaction may be conducted batchwise or continuously. The bischloroformate composition may be employed for the preparation of cyclic polycarbonate oligomers or linear polycarbonate, and linear polycarbonate formation may be integrated with bischloroformate composition formation in a batch or continuous process.

Bischoloroformate preparation method with phosgene removal and monochloroformate conversion

Aqueous bischloroformates are prepared by the reaction of a dihydroxyaromatic compound (e.g., bisphenol A) with phosgene in a substantially inert organic liquid (e.g., methylene chloride) and in the presence of an aqueous alkali metal or alkaline earth metal base, at a pH below about 8. After all solid dihydroxyaromatic compound has been consumed, the pH is raised to a higher value in the range of about 7-12, preferably 9-11, and maintained in said range until a major proportion of the unreacted phosgene has been hydrolyzed. At the same time, any monochloroformate in the product may be converted to bischloroformate.

Cyclic monocarbonate bishaloformates

Cyclic monocarbonate bischloroformates are prepared by the reaction of a carbonyl halide such as phosgene with a bridged substituted resorcinol or hydroquinone such as bis(2,4-dihydroxy-3-methylphenyl)methane or bis(2,5-dihydroxy-3,4,6-trimethylphenyl)methane in the presence of aqueous alkali metal hydroxide. The cyclic monocarbonate bischloroformates may be used for the preparation of linear or cyclic polycarbonates containing cyclic carbonate structural units, which may in turn be converted to crosslinked polycarbonates.

Process for producing 2,2-bis(4'hydroxyphenyl) propanes

Disclosed is a process for producing 2,2-bis(4'-hydroxyphenyl)propanes represented by the following general formula (2): STR1 (wherein R2 represents hydrogen atom or a hologen atom and the four R2 may be identical or different, R3 and R4 which may be identical or different represent hydrogen atom, an alkyl group, an aryl group, an aralkyl group, a cycloalkyl group, an alkoxy group or a halogen atom, p and q which may be identical or different represent integers of 1-4, a is 2 or 3 and b is 2 when a is 2 and is 1 when a is 3), characterized by reacting at least one phenol represented by the following formula (1): STR2 (wherein R1 has the same meaning as R3 and R4 and n is an integer of 1-4) with an unsaturated carbon compound represented by the general formula: C3 R42 (wherein R2 has the same meaning as in the formula (2) and the four R2 may be identical or different) in the presence of hydrochloric acid.

Polyetherimide bisphenol compositions

Polyetherimide bisphenols and bischloroformates are prepared by the reaction of dianhydrides or certain bisimides with aminophenols or mixtures thereof with diamines. They are useful as intermediates for the preparation of cyclic heterocarbonates, which may in turn be converted to linear copolycarbonates. The bisphenols can also be converted to salts which react with cyclic polycarbonate oligomers to form block copolyetherimidecarbonates.