Examples of 'aromatic dicarboxylic acids' in a sentence
Meaning of "aromatic dicarboxylic acids"
aromatic dicarboxylic acids - organic compounds containing two carboxylic acid functional groups attached to an aromatic ring
How to use "aromatic dicarboxylic acids" in a sentence
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aromatic dicarboxylic acids
Aromatic dicarboxylic acids may also be preferred.
Also suitable are aromatic dicarboxylic acids.
Aromatic dicarboxylic acids may also be employed.
This invention is related to the production of aromatic dicarboxylic acids.
Aromatic dicarboxylic acids and their derivatives are preferred.
Polyarylates generally refers to polyesters of aromatic dicarboxylic acids and bisphenols.
Aromatic dicarboxylic acids are highly useful organic compounds.
Preferred difunctional carboxylic acids employed are the aromatic dicarboxylic acids.
Aromatic dicarboxylic acids are also preferred.
It is known in the art to prepare aromatic dicarboxylic acids by primarily two methods.
These aromatic dicarboxylic acids may be used alone or in combination of two or more.
Suitable polycarboxylic acids include saturated or unsaturated aliphatic or aromatic dicarboxylic acids.
Two or more aromatic dicarboxylic acids may be combined and used.
Two stage oxidation process for the production of aromatic dicarboxylic acids.
Suitable aromatic dicarboxylic acids are those commonly used in the polyester industry.
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The preferred starting materials are aromatic monocarboxylic acids or asymmetrical aromatic dicarboxylic acids.
A part of the aromatic dicarboxylic acids may be replaced by an aliphatic dicarboxylic acid.
The polyalkylene phthalate also comprises units derived from one or more aromatic dicarboxylic acids.
Aromatic dicarboxylic acids or anhydrides may contain one or more aromatic rings.
Two or more of these aromatic dicarboxylic acids may be mixed and used.
Aromatic dicarboxylic acids are a preferred class for preparing the copolyetherester polymers useful for this invention.
Other aliphatic, cycloaliphatic or aromatic dicarboxylic acids can optionally be co-used.
Suitable aromatic dicarboxylic acids are the compounds previously described for the polyalkylene terephthalates.
Optionally, other aliphatic, cycloaliphatic or aromatic dicarboxylic acids may also be used.
Examples of the aromatic dicarboxylic acids include terephthalic acid and isophthalic acid.
For purposes of the present invention, the aromatic dicarboxylic acids are preferred.
Aliphatic or aromatic dicarboxylic acids and diols are preferred as the polycarboxylic acids and polyols.
If desired, other aliphatic, cycloaliphatic or aromatic dicarboxylic acids can also be employed.
The aromatic dicarboxylic acids selected from,.
A two step process for increasing yields of aromatic dicarboxylic acids which comprises,.
Background Art Aromatic dicarboxylic acids are highly useful organic compounds.
The diacid component can be selected from aliphatic, alicyclic, or aromatic dicarboxylic acids.
Two or more of these aromatic dicarboxylic acids may be used as a mixture thereof.
The dicarboxylic acids and polyols may be aliphatic, cycloaliphatic or aromatic dicarboxylic acids and polyols.
Examples of the different aromatic dicarboxylic acids are isophthalic acid and terephthalic acid.
Furthermore, metal-containing monoazo dyes and metal complex compounds of aromatic dicarboxylic acids are preferably used.
Dihydroxy esters of various aromatic dicarboxylic acids may be used in the processes described herein.
Yet another embodiment contains 0 mole % modifying aromatic dicarboxylic acids.
Aromatic dicarboxylic acids are typically high-melting solids.
Other aliphatic, cycloaliphatic or aromatic dicarboxylic acids can optionally be used concomitantly.
Aromatic dicarboxylic acids such as phthalic acid, isophthalic acid or terephthalic acid ;.
Above all, preferred are salts derived from aliphatic and / or aromatic dicarboxylic acids and aliphatic diamines.
Aromatic dicarboxylic acids may also be used, including phthalic acid or isophthalic acid.
Advantageously, the diacids are aromatic dicarboxylic acids having from 8 to 14 carbon atoms.
Aromatic dicarboxylic acids may also be used, such as phthalic acid or isophthalic acid.
The dicarboxylic acids may be chosen, for example, from aliphatic, alicyclic, and aromatic dicarboxylic acids.
The units derived from aromatic dicarboxylic acids are, among others, preferred.
The aromatic dicarboxylic acids are preferred, including in particular terephthalic acid and isophthalic acid.
The carboxylic acids may include aromatic dicarboxylic acids and aliphatic di - or polyfuncional carboxylic acids.
Suitable aromatic dicarboxylic acids are terephthalic acid and isophthalic acid, preferably terephthalic acid.
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