摘要:
To provide a method for producing a polymer, which contains: bringing a ring-opening polymerizable monomer containing an amide bond, and a compressive fluid into contact with each other to melt or dissolve the ring-opening polymerizable monomer containing an amide bond, followed by allowing the ring-opening polymerizable monomer containing an amide bond to react through ring-opening polymerization in the presence of a basic organic metal catalyst and a cocatalyst, to thereby obtain a polymer product.
摘要:
Provided is a polymer product, in which the weight average molecular weight measured by gel permeation chromatography is 250,000 or greater and the content of residual ring-opening-polymerizable monomer is 100 ppm by mass or greater but less than 1,000 ppm by mass, or a polymer product, in which the content of residual ring-opening-polymerizable monomer is from 1,000 ppm by mass to 20,000 ppm by mass and the yellow index (YI) value is 15 or less.
摘要:
To provide a method for producing a polymer, which contains: bringing an intermediate polymer, which has been obtained through ring-opening polymerization of a ring-opening polymerizable monomer, into contact with, and melting the intermediate polymer in a compressive fluid having a density of 230 kg/m3 or greater, at temperature lower than a melting point of the intermediate polymer, at a ratio of 0.05 to 10, to dissolve a low-molecular-weight compound contained in the intermediate polymer in the compressive fluid, to thereby extract the low-molecular-weight compound, wherein the ratio is a ratio of a mass of the intermediate polymer to a mass of the compressive fluid.
摘要翻译:提供一种制备聚合物的方法,其包括:将通过开环聚合单体的开环聚合获得的中间体聚合物与具有密度的压缩流体接触并熔融中间聚合物 在低于中间体聚合物的熔点的温度下,以0.05〜10的比例溶解230kg / m 3以上,以将包含在中间聚合物中的低分子量化合物溶解在压缩流体中,从而提取 低分子量化合物,其中该比例是中间聚合物的质量与压缩流体质量的比率。
摘要:
A foamed sheet including: a polylactic acid; and a filler, wherein the foamed sheet has a compressive stress of 0.2 Mpa or less when the cushioning coefficient of the foamed sheet is 10 or less; and wherein the foamed sheet has a puncture strength of 2 N or more when the sheet thickness of the foamed sheet is 2 mm.
摘要:
Toner contains a binder resin and a colorant, wherein the binder resin contains a resin having a polyhydroxy carboxylic acid skeleton, wherein the toner has a half effusion temperature of from 80° C. to 120° C. as measured by a temperature rising method using a flow tester.
摘要:
A method of manufacturing an aliphatic polyester resin composition is provided. The method includes kneading an aliphatic polyester resin and a filler at a temperature lower than a melting point of the aliphatic polyester resin in the presence of a compressible fluid.
摘要:
Provided is a toner including at least: a non-crystalline polyester resin; and a crystalline polyester resin, wherein when a cross-section of the toner is observed, the crystalline polyester resin has a maximum length of 100 nm or greater but less than 500 nm, and a ratio Dv/Dn of a volume average diameter Dv of the crystalline polyester resin to a number average diameter Dn of the crystalline polyester resin is less than 1.20.
摘要:
A toner including a colorant and a first binder resin is provided. The first binder resin has first and second glass transition points at a temperature Tg1 of −20 to 20° C. and a temperature Tg2 of 35 to 65° C., respectively, measured by a differential scanning calorimeter at a heating rate of 5° C./min. A ratio h1/h2 of a baseline displacement h1 observed in the first glass transition point to a baseline displacement h2 observed in the second glass transition point is less than 1.0. The first binder resin has a structure in which a first phase is dispersed in a second phase. The first and second phases consist of portions having larger and smaller phase difference values, respectively, than an intermediate value between maximum and minimum phase difference values in a binarized phase image obtained by an atomic force microscope with a tapping mode method.
摘要:
An aliphatic polyester resin composition contains an aliphatic polyester resin and a cross-linking agent, wherein the proportion of the gel proportion of the aliphatic polyester resin composition is less than 5 percent, wherein the weight average molecular weight of the aliphatic polyester resin composition after the aliphatic polyester resin composition is melted at 200° C. for 10 minutes increases by 50,000 or greater compared to the weight average molecular weight of the aliphatic polyester resin composition before the aliphatic polyester resin composition is melted at 200° C. for 10 minutes.
摘要:
A toner is provided that contains a crystalline polyester resin comprising a polycondensed resin of a dicarboxylic acid represented by the following formula (1) with a diol represented by the following formula (2). A content of a cyclic ester represented by the following formula (3) in the toner, measured by a thermal extraction gas chromatographic mass spectrometry at a thermal extraction temperature of 160° C., is from 1 to 200 ppm in terms of toluene: where n represents an integer of from 2 to 12; where m represents an integer of from 2 to 12; and where n represents an integer of from 2 to 12, m represents an integer of from 2 to 12, and m+n≥6 is satisfied.