When phenol is treated with chloroform in the presence of sodium hydroxide, an aldehyde group is formed at the ortho position of the benzene ring. This reaction is popularly known as Reimer-Tiemann reaction. For detailed discussions on electrophilic substitution reactions of phenols, please visit Byju's.
Styrenated phenol as antioxidant for rubber was prepared by reaction of styrene with phenol.The effects of reaction conditions such as dosage of catalyst,molar ratio of raw materials and reaction temperature on the alkylation were investigated.The result showed that the yield of styrenated phenol was over 95%in the presence of p-toluenesulfonic acid as catalyst at 120-130℃when dosage of …
Styrenated phenol CAS# 61788-44-1. Western Reserve Chemical, a premiere supplier of styrenated phenol applications both distyrenated and tristyrenated phenol, leads the market in manufacturing and distributing this plastic/rubber antioxidant. It is FDA approved for rubber product used in contact with food.
Jul 21, 2016· The present invention relates to styrenated phenol useful as a curing agent or a plasticizing agent for an epoxy resin. More particularly, it relates to use of styrenated phenol, which has viscosity and curing properties similar to those of nonylphenol and exhibits superior curing properties for an epoxy resin, as a curing agent or a plasticizing agent for an epoxy-cured paint.
A process for preparing styrenated phenol. CONSTITUTION: A process for preparing styrenated phenol comprises the steps of: alkylating phenol and styrene in the presence of a phosphoric acid catalyst; adding additionally sulfuric acids or magnesium sulfate as a catalyst to accelerate alkylation of unreacted styrene; and completing alkylation.
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Dec 31, 2015· The styrenated phenol compound in which the hydrazine or the diaminoalkane compound binds to the styrenated phenol can replace the conventional compound such as nonylphenol or dodecylphenol, and thus can have improved exterior quality and storage stability of a product by maintaining properties of the hardener such as a hardening stimulation property and plasticity and preventing the discoloration of a hardener composition…
STYRENATED PHENOL PBT/VPVB EVALUATION 13 uptake phase followed by uncontaminated diet during the depuration phase. The nominal concentrations of the food prepared were 1,000 mg/kg food for the mixture of di- and tristyrenated phenol and 250 mg/kg food for …
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The chart displays the number of matching substance classifications (hazard class, categories and hazard statements) provided by manufacturers and importers under REACH and CLP notifications, as well as whether the substance is defined under harmonised classification and labelling (CLH).