- BISPHENOL COMPOSITION CONTAINING AROMATIC ALCOHOL SULFONATE AND METHOD FOR PRODUCING SAME, POLYCARBONATE RESIN AND METHOD FOR PRODUCING SAME, AND BISPHENOL PRODUCTION METHOD
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A bisphenol composition including a specific amount of aromatic alcohol sulfonate, and a simple method of producing it are provided. Also provided is a method of producing a polycarbonate resin in which, by using the bisphenol composition including a specific amount of aromatic alcohol sulfonate, melt polymerization reaction can be efficiently allowed to proceed to produce a polycarbonate resin having an excellent color tone. A bisphenol composition including an aromatic alcohol sulfonate at not less than 0.1 ppb by mass with respect to a bisphenol. A method of producing a bisphenol composition, including reacting a ketone or an aldehyde with an aromatic alcohol in the presence of sulfuric acid to produce a bisphenol composition. A method of producing a polycarbonate resin, including producing a polycarbonate resin using the bisphenol composition. A polycarbonate resin including a specific amount of aromatic alcohol sulfonate.
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Paragraph 0291
(2020/07/07)
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- SYNTHESIS OF 2,2-BIS(3-PHENYL-4-HYDROXYPHENYL) PROPANE (PHP)
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Disclosed herein are ortho aryl substituted bisphenol monomers that exhibit a lower binding energy to estradiol related receptors. The monomers are provided by the condensation of a ketone and phenol in the presence of an acid catalyst.
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Paragraph 0065
(2016/02/10)
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- Synthesis of 2,2-bis(3-phenyl-4-hydroxyphenyl) propane (PHP)
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Disclosed herein are ortho aryl substituted bisphenol monomers that exhibit a lower binding energy to estradiol related receptors. The monomers are provided by the condensation of a ketone and phenol in the presence of an acid catalyst.
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- COLOR DEVELOPING COMPOSITION CONTAINING MOLECULAR COMPOUND, AND RECORDING MATERIAL
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Provided is a color-developing composition containing a molecular compound which has as a component compound a compound represented by formula (I) [wherein Y represents a C1-C12 hydrocarbon group which is chained or branched and saturated or unsaturated, or a C1-C8 hydrocarbon group which is chained or branched, saturated or unsaturated and has an ether or thioether bond; R1, R2, R3 and R4 each independently represent a C1-C6 alkyl group or C2-C6 alkenyl group; n, p, q and r each represents any integer of 0 to 4; and m represents any integer of 0 to 2]. Also provided is a recording material with a sufficient color-forming sensitivity, superior storage stability, and especially with an extremely little background fogging in a heat resistance test.
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- MEDICAL DEVICE USING SULFONATED NEUTRALIZED POLYMERS WITH REDUCED ADHESION OF BIOLOGICAL FLUIDS
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A medical article having neutralized sulfonic acid groups on its surface, is disclosed. The article has reduced interaction with biological fluids such as insulin, human growth hormone and human serum albumin.
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- Dihydric phenols
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Dihydric phenol suitable for the preparation of polycarbonates are represented by the following formula: STR1
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- Camoform analogs as potential agents against mefloquine resistant malaria
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Analogs of 5,5'-di-2-propenyl-3,3'-bis(1-pyrrolidinylmethyl) [1,1'-biphenyl]-4,4'-diol 2 which exhibited modest activity against chloroquine- and mefloquine-resistant lines of Plasmodium berghei were prepared. Modifications of the Mannich side chain, the propenyl group, and analogs wherein a bridging atom was inserted between the phenyl rings were prepared. None of the structural changes provided an improvement in antimalarial activity over the lead compound in the P. berghei mouse system.
- Hung,Werbel
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