17096-14-9

Upstream product

• 75-07-0 acetaldehyde 
• 95-48-7 ortho-cresol 
• 123-63-7 paracetaldehyde 

Downstream Products

• 101433-99-2 2,2'-dimethyl-4,4'-ethylidene-bis-cyclohexanol 
• 102454-52-4 2-tert-butyl-2',6-dimethyl-4,4'-ethylidene-di-phenol 
• 2219-73-0 4-ethyl-2-methylphenol 
• 45803-83-6 3-methyl-4-hydroxystyrene 
• 95-48-7 ortho-cresol 

Relevant academic research and scientific papers

Mechanisms of decreased moisture uptake in ortho -methylated di(cyanate ester) networks

Decreases of up to 50% in the moisture uptake of polycyanurate networks based on 2,2-bis(4-cyanatophenyl)propane (BADCy) and 1,1-bis(4-cyanatophenyl)ethane (LECy) were observed when analogous networks containing a single methyl group ortho- to each aryl-c

METHOD FOR PRODUCING BISPHENOL COMPOUND

PROBLEM TO BE SOLVED: To provide a method for producing an aldehyde bisphenol compound, which makes it possible to produce a 4,4'-substituted body with significantly high regioselectivity in an efficient and easy manner. SOLUTION: A production method includes producing a bisphenol compound represented by the formula (1) in a state in which at least phenol, heteropoly acid, and a trioxane compound such as paraldehyde coexist. [In formula (1), R1 is a hydrogen atom or a C1-29 monovalent organic group. R2 and R3 each denote a halogen atom or a C1-29 monovalent organic group. a and b each denote an integer of 0-4]. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT

Renewable bisphenols and resins from salicylic acid

A method for the selective synthesis of bisphenols, thermosetting resins, and thermoplastics from salicylic acid, the major component of wintergreen oil, and a viable target for engineered biosynthesis. Condensation of salicylic acid, structural analogs of salicylic acid, and derivatives of salicylic acid with short chain aldehydes or ketones and subsequent decarboxylation has the potential to produce bisphenols that are direct replacements for conventional resins, while the steric and electronic effects of salicylic acid improve the efficiency and selectivity of the conversion process. The utilization of renewable polyphenols as precursors to epoxies, poly carbonates, and high temperature thermosets including cyanate esters, provides an opportunity to develop full-performance resins while reducing the use of petroleum based feedstocks. This approach will then diminish the overall environmental impact of resin production while allowing for a sustainable source of phenols.

METHOD OF PRODUCING POLY(ORTHO-METHYLPHENOL)

Poly(ortho-methylphenol) is obtainable at high purities and yields using industrial processes by causing a secondary amine and formaldehyde to react with a polyphenol (first step), and then breaking down the aminomethyl group of the obtained poly(ortho-aminomethyl)phenol by means of hydrogenolysis in the presence of a hydrogenation catalyst (second step).

Polycarbonates exhibiting improved heat resistance

Novel heat resistant polycarbonates are provided which are the polymerized reaction products of: (i) a carbonate precursor; and (ii) at least one dihydric phenol selected from dihydric phenols represented by the general formulae STR1 wherein: each R1 is independently selected from halogen radicals, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals; each R2 is independently selected from halogen radicals, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals; R4 and R5 are independently selected from monovalent hydrocarbon radicals; R3 is selected from hydrogen and monovalent hydrocarbon radicals, with the proviso that if R3 is a hydrogen radical than at least one of the monovalent hydrocarbon radicals represented by R4 and R5 contains at least two carbon atoms; R7 is selected from hydrogen and monovalent hydrocarbon radicals; R6 is a divalent hydrocarbon radicals; and n and n' are independently selected from whole numbers having a value of from 0 to 4 inclusive.

Process for the preparation of bisphenols

Processes for the preparation of bisphenols from phenols and substituted vicinal glycols, or unsaturated alcohols or substituted dienes resulting in bisphenols represented by the general formula: STR1 wherein: R1 and R2 are independently selected from monovalent hydrocarbon and monovalent hydrocarbonoxy radicals of one to four carbon atoms, or from halogen radicals; R3, R4 and R5 is each a lower alkyl radical, preferably of one to four carbon atoms, aryl radicals, alkaryl radicals, aralkyl radicals, and cycloalkyl radicals, and is the same or different; R5 may also be hydrogen. n and n1 are independently selected from whole numbers having a value of from 0 to 4 inclusive.

Dihydric phenols

Novel polycarbonates are provided which exhibit rubbery and elastomeric properties which are the polymerized reaction products of: (i) a carbonate precursor; and (ii) at least one dihydric phenol represented by the general formula STR1 wherein R is selected from straight chain alkyl radicals containing from 8 to about 30 carbon atoms; each R1 is independently selected from halogen monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals; each R2 is independently selected from halogen, monovalent hydrocarbon, and monovalent hydrocarbonoxy radicals; and n and n' are independently selected from whole numbers having a value of from 0 to 4 inclusive.