Patent classifications
C08G64/06
THERMOPLASTIC RESIN COMPOSITION AND FORMED PRODUCT
A formed product produced by using a thermoplastic resin composition comprising a polycarbonate resin with a repeating unit (A) represented by the following general formula (1) and a repeating unit (B) represented by the following general formula (2). R.sup.1 and R.sup.2 independently denote a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group. The alkyl groups in R.sup.1 and R.sup.2 may be bonded together to form a ring. R.sup.3 and R.sup.4 independently denote a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms or a substituted or unsubstituted aryl group. X denotes a single bond or a divalent organic group represented by the following general formula (3). R.sup.6 to R.sup.9 independently denote a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms or a substituted or unsubstituted aryl group. R.sup.5 denotes a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group.
##STR00001##
THERMOPLASTIC RESIN COMPOSITION AND FORMED PRODUCT
A formed product produced by using a thermoplastic resin composition comprising a polycarbonate resin with a repeating unit (A) represented by the following general formula (1) and a repeating unit (B) represented by the following general formula (2). R.sup.1 and R.sup.2 independently denote a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group. The alkyl groups in R.sup.1 and R.sup.2 may be bonded together to form a ring. R.sup.3 and R.sup.4 independently denote a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms or a substituted or unsubstituted aryl group. X denotes a single bond or a divalent organic group represented by the following general formula (3). R.sup.6 to R.sup.9 independently denote a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms or a substituted or unsubstituted aryl group. R.sup.5 denotes a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted aryl group.
##STR00001##
AROMATIC POLYCARBONATE RESIN COMPOSITION AND AROMATIC POLYCARBONATE RESIN MANUFACTURING METHOD
Provided is a method of manufacturing an aromatic polycarbonate resin composition with high fluidity, particularly during low shear, and a good color. An aromatic polycarbonate resin composition including: an aromatic polycarbonate resin that has a structural unit expressed by general formula (1); a aliphatic cyclic carbonate that is expressed by general formula (2) and is included at a ratio of 10 ppm-10,000 ppm; an aromatic cyclic carbonate that is expressed by general formula (3); and at least one compound selected from the group consisting of compounds expressed by general formulas (4)-(6), wherein the total content of the aromatic cyclic carbonate and the compound(s) expressed by general formula(s) (4)-(6) is 0.1 mass %-2.0 mass % by bisphenol A-converted value.
##STR00001##
AROMATIC POLYCARBONATE RESIN COMPOSITION AND AROMATIC POLYCARBONATE RESIN MANUFACTURING METHOD
Provided is a method of manufacturing an aromatic polycarbonate resin composition with high fluidity, particularly during low shear, and a good color. An aromatic polycarbonate resin composition including: an aromatic polycarbonate resin that has a structural unit expressed by general formula (1); a aliphatic cyclic carbonate that is expressed by general formula (2) and is included at a ratio of 10 ppm-10,000 ppm; an aromatic cyclic carbonate that is expressed by general formula (3); and at least one compound selected from the group consisting of compounds expressed by general formulas (4)-(6), wherein the total content of the aromatic cyclic carbonate and the compound(s) expressed by general formula(s) (4)-(6) is 0.1 mass %-2.0 mass % by bisphenol A-converted value.
##STR00001##
FILM, MULTILAYERED ARTICLE, THERMOFORMED ARTICLE, IN-MOLD FORMED ARTICLE, METHOD FOR PRODUCING FORMED ARTICLE, AND METHOD FOR PRODUCING IN-MOLD FORMED ARTICLE
Provided is a film including a polycarbonate resin capable of achieving excellent drawdown resistance during thermoforming and excellent formability in processing a bent portion and the like thereof. The film contains a polycarbonate resin (a) which satisfies the following expression (i), when a viscosity at a shear rate of 6.080×10 [1/s] measured at 300° C. is X [Pa.Math.s] and a viscosity at a shear rate of 6.080×10.sup.3 [1/s] measured at 300° C. is Y [Pa.Math.s].
FILM, MULTILAYERED ARTICLE, THERMOFORMED ARTICLE, IN-MOLD FORMED ARTICLE, METHOD FOR PRODUCING FORMED ARTICLE, AND METHOD FOR PRODUCING IN-MOLD FORMED ARTICLE
Provided is a film including a polycarbonate resin capable of achieving excellent drawdown resistance during thermoforming and excellent formability in processing a bent portion and the like thereof. The film contains a polycarbonate resin (a) which satisfies the following expression (i), when a viscosity at a shear rate of 6.080×10 [1/s] measured at 300° C. is X [Pa.Math.s] and a viscosity at a shear rate of 6.080×10.sup.3 [1/s] measured at 300° C. is Y [Pa.Math.s].
Compound having fluorene skeleton, and method for manufacturing same
Provided are a novel compound having a fluorene skeleton, and a method for manufacturing the same, the compound having a low palladium content or other content of a specific metal or content of a specific compound in a raw material alcohol, and being excellent in hue or various characteristics (optical characteristics, heat resistance, moldability, and other characteristics) as a raw material or in a resin that uses the raw material. This compound is a mixture of compounds having a fluorene skeleton represented by formula (1) (in formula (1), the rings Z being (same or different) aromatic groups, R.sup.1 and R.sup.2 each independently representing a hydrogen atom, a halogen atom, or a C1-12 hydrocarbon group which may include an aromatic group, Ar.sup.1 and Ar.sup.2 representing C6-10 aromatic groups which may have a substituent, L.sup.1 and L.sup.2 representing alkylene groups, j and k each independently representing an integer of 0 or greater, and m and n each independently representing an integer of 0 to 5), the mixture of compounds having a fluorene skeleton being characterized in that the content of elemental palladium therein satisfies formula (2) ((2): 0≤Pd≤50 ppm), and among the mixture of compounds represented by formula (1), compounds comprising the integers m=1-5 and n=0 are included in a range of 0-5%.
Compound having fluorene skeleton, and method for manufacturing same
Provided are a novel compound having a fluorene skeleton, and a method for manufacturing the same, the compound having a low palladium content or other content of a specific metal or content of a specific compound in a raw material alcohol, and being excellent in hue or various characteristics (optical characteristics, heat resistance, moldability, and other characteristics) as a raw material or in a resin that uses the raw material. This compound is a mixture of compounds having a fluorene skeleton represented by formula (1) (in formula (1), the rings Z being (same or different) aromatic groups, R.sup.1 and R.sup.2 each independently representing a hydrogen atom, a halogen atom, or a C1-12 hydrocarbon group which may include an aromatic group, Ar.sup.1 and Ar.sup.2 representing C6-10 aromatic groups which may have a substituent, L.sup.1 and L.sup.2 representing alkylene groups, j and k each independently representing an integer of 0 or greater, and m and n each independently representing an integer of 0 to 5), the mixture of compounds having a fluorene skeleton being characterized in that the content of elemental palladium therein satisfies formula (2) ((2): 0≤Pd≤50 ppm), and among the mixture of compounds represented by formula (1), compounds comprising the integers m=1-5 and n=0 are included in a range of 0-5%.
Process for producing a three-dimensional object
A process for producing a three-dimensional object by selectively layer-by-layer solidification of a powdery material layer at the locations corresponding to the cross-section of the object in a respective layer by exposure to electromagnetic radiation. The powdery material comprises at least one polymer which is obtainable from its melt only in substantially amorphous or completely amorphous form, or a polyblend which is obtainable from its melt only in substantially amorphous or completely amorphous form. The powdery material has a specific melting enthalpy of at least 1 J/g.
Polycarbonate resin composition and molded body
Provided is a polycarbonate resin composition, including: an aromatic polycarbonate resin (A); an alicyclic epoxy compound (B); a predetermined antioxidant (C); and a predetermined phosphorus compound (D), wherein, with respect to 100 parts by mass of the component (A), a content of the component (B) is 0.01 part by mass or more and 0.1 part by mass or less, a content of the component (C) is 0.01 part by mass or more and 0.1 part by mass or less, and a content of the component (D) is 0.01 part by mass or more and 0.05 part by mass or less.