Examples of 'dihydroxy compounds' in a sentence
Meaning of "dihydroxy compounds"
Dihydroxy compounds are organic compounds that contain two hydroxy functional groups (-OH) on their molecules. These compounds are commonly found in various natural substances such as sugars and alcohols
How to use "dihydroxy compounds" in a sentence
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dihydroxy compounds
These dihydroxy compounds may be halogen substituted.
The polycarbonates are made from aromatic dihydroxy compounds.
Suitable dihydroxy compounds are aliphatic or aromatic dihydroxy compounds.
A plurality of storage tanks may be disposed to feed other dihydroxy compounds.
Combinations of aromatic dihydroxy compounds also can be used.
The dihydroxy compounds can also contain ether groups.
Combinations comprising at least one of the foregoing dihydroxy compounds can also be used.
One of the aromatic dihydroxy compounds used is resorcin or a substituted resorcin.
The aromatic polyamines may be used alone or in admixture with aromatic dihydroxy compounds.
These aromatic dihydroxy compounds can be used either singly or in combination.
Suitable dihydroxy comonomers include without limitation aliphatic or aromatic dihydroxy compounds and mixtures thereof.
These aromatic dihydroxy compounds can be used alone or as combinations thereof.
Then, a carbon number and molar ratio of the dihydroxy compounds are calculated.
Aromatic dihydroxy compounds described by the following formula can also be used.
Representative examples of aromatic dihydroxy compounds include bisphenol A.
See also
The dihydroxy compounds may be used alone or in combination of two or more kinds.
Mixtures of the above-described dihydroxy compounds can also be used.
The dihydroxy compounds may include within the structure diurethane linkages.
The polyurethane is based on diisocyanates, dihydroxy compounds and an amine or hydrazine chain extender.
The dihydroxy compounds a2 may be polyester diols.
Among the above low molecular weight diols non-cyclic, alicyclic and aromatic dihydroxy compounds are included.
Also included as useful dihydroxy compounds are the saturated cycloaliphatic diols.
It is preferably derived from any of the aromatic dihydroxy compounds of formula ( I ).
These aromatic dihydroxy compounds may be used alone or in combination of two or more.
First, in the present invention, various kinds of dihydroxy compounds can be used as a component ( A ).
Preferred dihydroxy compounds a2 are the polyesterdiols specified above.
These units can be derived from reaction of dihydroxy compounds of formula ( 3 ) as described above.
Free dihydroxy compounds having formula 1 can be made by hydrolysis of ether precursors.
These and further suitable aromatic dihydroxy compounds are described, for example, in U.S. Pat.
The dihydroxy compounds may be aliphatic, aromatic or alicyclic diols, for example.
These and other bis ( phenol ) s and dihydroxy compounds are described in U.S. Patent Nos.
The dihydroxy compounds a2 may be polyether diols, selected from polypropylene oxide and polytetrahydrofuran.
These and further suitable aromatic dihydroxy compounds are described, for example, in U. S.
When other dihydroxy compounds are used, these dihydroxy compounds function as a compatibilizing agent.
Thus, the application encompasses copolycarbonates with residues of 2, 3, 4, or more types of dihydroxy compounds.
Any of the aromatic dihydroxy compounds mentioned above can be used in the invention.
Dihydroxy compounds useful for preparing the epoxy materials include, for example, diphenols and dihydric alcohols.
The above-mentioned aromatic dihydroxy compounds can be used individually or in combination.
Dihydroxy compounds having a melting point lower than 60°C are undesirable for the following reasons.
For other functional dihydroxy compounds than the above, US Patent Nos.
Dihydroxy compounds include alkylene glycols of general structure HO - ( - R - ) - OH, wherein R is hydrocarbylene.
Preferred are ( meth ) acryloyl dihydroxy compounds and poly ( meth ) acryloyl dihydroxy compounds.
Suitable dihydroxy compounds are those in which only one atom separates A1 and A2.
Particularly preferred are dihydroxy compounds based on polybutadiene, or on hydrogenated polybutadiene.
Suitable aromatic dihydroxy compounds for preparing siloxane copolycarbonates include those represented by the formula III,.
The carbonates of dihydroxy compounds include diaryl carbonates, dialkyl carbonates and alkyl aryl carbonates.
Aliphatic dihydroxy compounds as one of component ( A ) include various compounds.
Aromatic dihydroxy compounds other than those expressed by formula ( 2 ) above can also be used.
Aromatic dihydroxy compounds such as hydroquinone, the bisphenols, and 4,4 ' - dihydroxybiphenyl may be used as well.
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