isophthalic acid


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isophthalic acid

[¦ī·sō¦thal·ik ′as·əd]
(organic chemistry)
C6H4(COOH)2 Colorless crystals subliming at 345°C; slightly soluble in water, soluble in alcohol and acetic acid, and insoluble in benzene; used as an intermediate for polyester and polyurethane resins, and as a plasticizer. Also known as meta-phthalic acid.
References in periodicals archive ?
Isophthalic acid is the principal aromatic dibasic acid used in coatings, and adipic acid is the principal aliphatic diacid.
In a manner similar to that of the polycarbonate oligomer, an hydroxy end-capped oligomer of bishydroquinone and isophthalic acid (referred to as HQ/IPA/HQ) was prepared, having the following formula:
The presence of isophthalic acid and neopentyl glycol units in the polymer, inhibit close packing, increase flexibility, and create cavities into which diffusion of the dye can occur.
After adding the isophthalic acid, the temperature is raised to 230[degrees]C to form the silicone-alkyd copolymeer.
Polyester polyols containing isophthalic acid (PIA) weather extremely well, but they have poor flexibility.
Eastman Chemical's purified terephthalic acid and isophthalic acid plants previously announced for North America will be built in Kingsport, at Tennessee Eastman Division.
An isopolyester resin, based on Amoco's isophthalic acid, is used to manufacture the grating system.
Eastman Isophthalic Acid : Off-list price increase of $USD 0.
Amorphous poly(ethylene terephthalate) (aPET) is a linear aromatic copolymer synthesized by using the isophthalic acid and terephthalaic acid and ethylene glycol monomers.
Abstract A series of polyester polyol resin was synthesized by using 1,4-cyclohexanedimenthanol (1,4-CHDM) and three different diacids: 1,3-cyclohexanedicarboxylic acid (1,3-CHDA), isophthalic acid (IPA) and adipic acid (AA).
The Joliet plant produces purified isophthalic acid, used as an additive in polyester resin products and in coatings for the packaging, appliance and automotive industries; maleic anhydride, used in unsaturated polyester resins, agricultural chemicals, and automotive and consumer products; and trimellitic anhydride, used in the automotive, construction, appliance and coatings sectors.
Hambana Petrochemical Ltd will have to import raw materials of 453,000Mt of Purified Terephthalic Acid, 183,600 Mt of Mono-Ethylene Glycol and 10,800 Mt of Purified Isophthalic Acid per year.