Bisphenol A (BPA) is produced through the reaction of phenol and acetone. It’s white granule with the density of 1.195. The purified product has fusing point at 158-159℃, while industrial product has the fusing point at 156-157℃. The boiling point is at 220℃ (5mbar). It is soluble in acetone but insoluble in water. Under ......More→
Our furan no-bake resins are self-hardening resins developed independently by Chang Chun. They are used as binders for mechanical casting with the advantages of low formaldehyde content, hardening at room temperature, and faster curing. All of which translate to increased productivity.
As a byproduct of trimethylolpropane, sodium formate is a white crystalline powder that is highly hygroscopic and water soluble.
Tetrahydrofuran (THF) is produced by dehydration of 1,4-butanediol. It is a neutral, colorless, volatile cycloaliphatic ether. It is highly polar and miscible with water. As an aprotic and medium polarity solvent, tetrahydrofuran is an excellent solvent for many organic substances. The chemical formula of this ......More→
Chang Chun's trimethylolpropane (TMP) is a widely functional intermediate in the organic chemical industry. TMP can improve various resins’ toughness, corrosion-resistance, and sealing strength. It is very stable against oxidation, hydrolysis, and pyrolysis. It’s mainly used as the raw material for alkyd ......More→
Our formaldehyde is produced by oxidation process. During the production, fresh air is mixed with recycled gases, and the chemical reaction occurs within the fixed bed reactor. Through metal oxides catalysis, formaldehyde gas is produced and then absorbed by water in the absorption tower. ......More→
Allyl alcohol is an irritating, colorless liquid that is produced by gas phase reaction of propene and acetic acid in presence of a catalyst. It can be used as a raw material or a precursor for many chemical substances.
Isobutanol (IBA) is a byproduct obtained by hydroformylation of allyl alcohol with carbon monoxide and hydrogen, which is then followed by hydrogenation. It is a colorless liquid which is soluble in water, alcohols, and ethers. IBA can be used as a solvent for coating and as a chemical intermediates in organic synthesis. As ......More→
Chang Chun Group has been producing paraformaldehyde since Oct. 1983. Due to our paraformaldehyde is mainly in a granular format with consistent quality, it is easy to handle and transport. Because of excellent solubility and broad applicability, it is used in products such as synthetic resin, phenolic resin, ......More→
Polysulfone (PSU) is synthesized from Bisphenol A and 4,4'-Dichlorodiphenyl Sulfone. PSU offers excellent performance in chemical resistance, heat stability (heat deflection temperature of 170℃), and impact strength. With the above characteristics, PSU is a kind of high performance engineering thermoplastic resin.
Phenolic resin is the reaction product of phenol and formaldehyde. It offers good mechanical strength, dimensional/thermal stability, and good resistance to electricity, solvent, and acid. It is widely used in molding materials (including electronic packaging materials), laminating materials, polishing materials, ......More→
n-Propanol is a byproduct obtained by hydroformylation of allyl alcohol with carbon monoxide and hydrogen, which is then followed by hydrogenation. It is a colorless liquid with alcohol odor. It is moderate volatilite and is soluble in water, alcohols, and ether.
Vinyl acetate-ethylene copolymer emulsion (VAE Emulsion) is a copolymer of vinyl acetate and ethylene. It has been developed as a powerful base adhesive, offering the following unique characteristics: strong initial adhesion, high wet ......More→
Polytetramethylene ether glycol (PTMEG/PTG) is produced by the acid catalyzed polymerization of tetrahydrofuran (THF). It is a straight-chain diol with repeated tetramethylene ether units.
With technical cooperation with Honeywell UOP (formerly known as UOP LLC) of the USA, we produce high-purity phenol via the cumene process. Phenol is white crystals under normal temperature, with melting point at 40.7℃. It’s soluble in ethanol, acetic acid, glycerol, chloroform, carbon disulfide and benzene. Its main downstream ......More→
Methyl acetate is a colorless transparent liquid with a fruit-like fragrance. It’s low-toxic, but it’s flammable with the boiling point at 57℃, melting point at -98.05℃ and density of 0.93. It’s usually used to replace acetone, butanone, ethyl acetate and cyclopentane. Due to its low toxicity, methyl acetate can ......More→
1,4-Butanediol (BDO) is produced by hydroformylation of allyl alcohol with carbon monoxide and hydrogen, which is then followed by hydrogenation. It is a colorless liquid with high boiling point and low toxicity.
Acetic acid is a colorless transparent liquid with pungent sour odor. It is also known as glacial acetic acid whenever the purity is 99.5% or more. Acetic acid is soluble in water, alcohols, and ethers and is widely used in man-made fibers, rubber, plastics, agriculture, herbicides, leather, organic ......More→
Polyethersulfone (PES) is synthesized from Bisphenol S and 4,4'-Dichlorodiphenyl Sulfone. PES offers excellent performance in chemical resistance, heat stability (heat deflection temperature of 195℃), and impact strength. With the above characteristics, PES is a kind of high performance engineering ......More→
Brominated epoxy flame retardant is an epoxy resin-based flame retardant with high bromine content. It can be added to variety of engineering plastics, such as PP, PA, PE, PS, ABS, PET, and PBT. Compared to traditional TBBA-based flame retardant, products ......More→
2-Methyl-1,3-propanediol is a product produced through hydroformylation of allyl alcohol with carbon monoxide and hydrogen, which is then followed by hydrogenation. It is a colorless low viscosity liquid with low toxicity. It is a non-linear diol with a unique methyl branch.
With the density of 0.88, boiling point at 124-128℃ and melting point at -76℃, n-butyl acetate is an excellent organic solvent. As a flammable colorless liquid, it can well dissolve cellulose acetate butyrate, ethyl cellulose, chlorinated rubber, polystyrene, and many natural gums and resins. Therefore, it is ......More→
Vinyl acetate monomer (VAM) is a reactive colorless liquid chemical that is produced by gaseous reaction of ethylene, acetic acid, and oxygen in the presence of a catalyst. Hydroquinone is added as a stabilizer to inhibit polymerization during storage.
Acetic acid propyl ester, also known as “propyl acetate” or “n-propyl acetate”, naturally exists in strawberries, bananas and tomatoes. It is synthetically produced by having acetic acid and 1-propanol undergoing esterification reaction. It is a colorless transparent liquid at room temperature with typical ......More→
Polyphenylsulfone (PPSU) is synthesized from 4,4'-Biphenol and 4,4'-Dichlorodiphenyl Sulfone. PPSU offers excellent performance in impact strength, chemical resistance, heat stability (heat deflection temperature of 207℃). With the above characteristics, PPSU is a kind of high performance engineering ......More→
In technical cooperation with Honeywell UOP of the USA (formerly known as UOP LLC), Chang Chun Group produces high-purity acetone via the cumene process. At room temperature, acetone is a colorless, highly volatile, flammable liquid with fragrant smell. It is also dangerous as it can react violently with strong oxidizer. It’s soluble ......More→