74462-04-7Relevant articles and documents
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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, (2020/07/07)
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.
METHOD FOR PRODUCING BISPHENOL COMPOUND
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Paragraph 0195, (2019/12/25)
PROBLEM TO BE SOLVED: To provide a method for producing an aldehyde bisphenol compound, wherein a 4,4'-substituted body is obtained efficiently and easily with significantly high regioselectivity. SOLUTION: When producing an aldehyde bisphenol compound from a phenol and an aldehyde, a heteropoly acid is used as an acid catalyst. The heteropoly acid has: a hydrogen atom; an oxygen atom; an atom of Groups 5 to 6 in the periodic table; and an atom of Groups 7 to 16 in the periodic table, excluding the oxygen atom, as constituent atoms, respectively, with the ratio between the number of hydrogen atoms/the number of anions being 0.080 or more. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
METHOD FOR PRODUCING BISPHENOL COMPOUND
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Paragraph 0192, (2019/12/31)
PROBLEM TO BE SOLVED: To provide a method for producing an aldehyde bisphenol compound, wherein a 4,4'-substituted body is obtained efficiently and easily with significantly high regioselectivity. SOLUTION: When producing an aldehyde bisphenol compound from a phenol and an aldehyde, a heteropoly acid is used as an acid catalyst, the heteropoly acid represented by the following formula (I): Hn(X2Y18O62) [where, n is an integer of 1 or greater, represented by the following formula (II), X is a p-valent atom of Groups 7 to 16 in the periodic table, excluding the oxygen atom, Y is a p-valent atom of Groups 5 to 6 in the periodic table, where p and q are valences of X and Y and represented by the number of 1 or more]. The formula (II): n=124-2p-18q [where, n, p and q are the same as described in the formula (I)]. SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
POLYHYDRIC PHENOL COMPOUND AND METHOD OF PRODUCING SAME
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Paragraph 0297-0304, (2019/07/23)
The present invention provides a polyhydric phenol compound which has an excellent alkali resistance and which does not cause a deterioration in color even when used as a resin raw material or a color developer. The polyhydric phenol compound includes: a bisphenol compound (A) represented by the following Formula (1) and a trisphenol compound (B) represented by the following Formula (2): [wherein R1 represents a monovalent aliphatic hydrocarbon group having from 6 to 24 carbon atoms; each of R2, R3, R4, R5 and R6 represents a monovalent hydrocarbon group having from 1 to 15 carbon atoms; and each of a, b, c, d and e represents an integer from 0 to 4]; wherein the trisphenol compound (B) is contained in an amount, in terms of absorption intensity ratio at 254 nm, of less than 1.6% by area with respect to the amount of the bisphenol compound (A).
METHOD FOR PRODUCING BISPHENOL COMPOUND
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Paragraph 0174; 0175; 0176-0183; 0188-0191; 0212; 0218, (2019/06/26)
PROBLEM TO BE SOLVED: To provide a method for producing an aldehyde bisphenol compound, where, a specific catalyst and a second component are combined, to efficiently and easily obtain a 4,4'-substituted body with a significantly high regioselectivity. SOLUTION: When an aldehyde bisphenol compound is produced from a phenol and an aldehyde, the production is conducted in coexistence with a heteropoly acid as an acid catalyst and a specific mercapto compound. SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT
1,1-BIS(4-HYDROXYPHENYL)DODECANE AND PRODUCTION METHOD THEREOF
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Paragraph 0118, (2018/07/14)
PROBLEM TO BE SOLVED: To provide 1,1-(4-hydroxyphenyl)dodecane that is excellent in storage stability and does not cause problems of safety in a production process when used as a resin raw material of a polycarbonate resin or the like. SOLUTION: A crystal of 1,1-bis(4-hydroxyphenyl)dodecane having at least one x-ray diffraction peak at a diffraction angle (2θ)4.40° or lower in powder x-ray diffraction analysis due to CuKα line. A crystal of 1,1-bis(4-hydroxyphenyl)dodecane having x-ray diffraction peaks at diffraction angles (2θ)4.05° ±0.20°, 12.10° ±0.20°, 18.55° ±0.20°, 19.40° ±0.20°, and 19.95° ±0.20°, and having a melting point of 80°C or higher and 90°C or lower in powder x-ray diffraction analysis due to Cu Ka line. 1,1-bis(4-hydroxyphenyl)dodecane in a specific crystalline state is excellent in the storage stability. SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2018,JPOandINPIT
CRYSTAL OF 1,1-BIS(4-HYDROXYPHENYL)DODECANE AND PRODUCTION METHOD THEREOF
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Paragraph 0102, (2018/07/28)
PROBLEM TO BE SOLVED: To provide 1,1-bis(4-hydroxyphenyl)dodecane that is excellent in storage stability of powder and does not contain a harmful chlorine-containing solvent, and a production method of the compound. SOLUTION: A crystal of 1,1-bis(4-hydroxyphenyl)dodecane that does not have an x-ray diffraction peak at a diffraction angle (2θ)4.50°±0.20° and has an x-ray diffraction peak at (2θ)4.95°±0.20° in powder X-ray diffractometry due to Cu-Kα ray. A production method of crystal of the 1,1-bis(4-hydroxyphenyl)dodecane, and a production method of a resin that uses the crystal of 1,1-bis(4-hydroxyphenyl)dodecane. A production method of the crystal of compound in which by using a solvent made of two or more kinds of atoms selected from H, C and O, the 1,1-bis(4-hydroxyphenyl)dodecane is crystallized, followed by desolvating by heating at 50 to 75°C. SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2018,JPOandINPIT
METHOD FOR PRODUCING BISPHENOL COMPOUND, AND METHOD FOR PRODUCING POLYCARBONATE RESIN
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Paragraph 0169; 0170; 0176; 0177; 0179; 0181; 0183; 0185, (2019/02/27)
PROBLEM TO BE SOLVED: To provide a method for easily, efficiently and highly selectively producing a bisphenol compound exhibiting stable polymerization activity as a raw material for polycarbonate resin with an industrial scale. SOLUTION: A method for producing a bisphenol compound represented by formula (1) includes reacting aldehydes and a monophenol compound in the presence of a sulfonic acid compound represented by formula (2). In formula (1), R1 is a monovalent aliphatic hydrocarbon group having 6 to 24 carbon atoms; R2 and R3 are each independently a monovalent hydrocarbon group having 1 to 15 carbon atoms; a and b are integers of 0 to 4; and when either a or b is 2 or more, either R2 or R3 that is 2 or more on the same benzene ring may be bonded to each other to form a ring. In formula (2), R4 is an n-th valent hydrocarbon group having 1 to 20 groups: and n is an integer of 1 to 2. SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT
METHOD FOR PRODUCING BISPHENOL COMPOUND
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Paragraph 0106-0112; 0117; 0118, (2018/02/03)
PROBLEM TO BE SOLVED: To provide a method that allows a high-purity bisphenol compound to be obtained in a crystal form with excellent handleability, conveniently and with high yields. SOLUTION: A method for producing a bisphenol compound comprises the step of precipitating a bisphenol compound represented by the formula (1) from a solvent containing at least one aliphatic alcohol solvent. [In formula (1), R1 is a C7-C19 alkyl group, R2 is a hydrogen atom or a C1-C19 alkyl group, R3-R6 independently represent a hydrogen atom or a methyl group]. SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2018,JPOandINPIT
