1. A process for producing polymer polyol in which a residual monomer is reduced, the process comprising: removing an organic solvent (II) from a liquid composition including a base polymer polyol (I) obtained by polymerizing ethylenically unsaturated monomer (b) in polyol (A) and an organic solvent (II) that is present in a content of not less than 3 mass % with respect to (I), wherein the organic solvent (II) comprises an organic solvent (II-1) having a SP value of 7 to 14 (calcm3)12 and a boiling point that satisfies the following relational formula (1):
850s\u2266bp\u22661100s\u2003\u2003(1)
where
s represents an SP value of the organic solvent, and
bp represents a boiling point of the organic solvent.
2. A process for producing polymer polyol in which a residual monomer is reduced, the process comprising: mixing a base polymer polyol (I) obtained by polymerizing ethylenically unsaturated monomer (b) in polyol (A) and an organic solvent (II) that is present in a content of not less than 3 mass % with respect to (I); and removing the organic solvent (II) from a liquid composition, wherein the organic solvent (II) comprises an organic solvent (IIa) having a SP value of 7 to 14 (calcm3)12 and a boiling point of 60\xb0 C. to 150\xb0 C.
3. The process for producing polymer polyol according to claim 1, wherein the organic solvent (II) comprises an organic solvent (II-1) having a SP value of 7 to 14 (calcm3)12 and a boiling point that satisfies the following relational formula (1) and an organic solvent (II-2) having a SP value of 9 to 11 (calcm3)12 and a boiling point that satisfies the following relational formula (2); and wherein the content of (II-1) in (II) is 70 to 99.9 mass % and the content of (II-2) in (II) is 0.1 to 30 mass %:
850s\u2266bp\u2266100s\u2003\u2003(1)
1100s\u2266bp\u2266150\u2003\u2003(2)
where
s represents an SP value of the organic solvent, and
bp represents a boiling point of the organic solvent.
4. The process for producing polymer polyol according to claim 1, wherein (II) is at least one selected from the group consisting of methanol, ethanol, isopropanol, butanol, xylene, toluene, hexane, heptane, cyclohexane and methyl ethyl ketone.
5. The process for producing polymer polyol according to claim 1, wherein the polymer polyol contains 25 to 75 mass % of polymer (B) which is a polymer of (b).
6. The process for producing polymer polyol according to claim 1, wherein (b) comprises acrylonitrile andor styrene in an amount of 50 mass % or more.
7. The process for producing polymer polyol according to claim 6, wherein the content of acrylonitrile in polymer polyol is reduced to 100 ppm or less and the content of styrene in polymer polyol is reduced to 150 ppm or less.
8. Polymer polyol comprising 25 to 60 mass % polyol (A) and 40 to 75 mass % of polymer particles (B 1) formed by polymerizing ethylenically unsaturated monomer in the polyol (A), the ethylenically unsaturated monomer having a content of acrylonitrile andor styrene of not less than 50 mass %, wherein (B1) has a particle size of not more than 100 \u03bcm and contains not less than 95 mass % of particles with a particle size of 0.01 to 10 \u03bcm; and the total content of acrylonitrile and styrene is not more than 20 ppm.
9. The process for producing polymer polyol according to claim 2, wherein the organic solvent (II) comprises an organic solvent (II-1) having a SP value of 7 to 14 (calcm3)12 and a boiling point that satisfies the following relational formula (1) and an organic solvent (II-2) having a SP value of 9 to 11 (calcm3)12 and a boiling point that satisfies the following relational formula (2); and wherein the content of (II-1) in (II) is 70 to 99.9 mass % and the content of (II-2) in (II) is 0.1 to 30 mass %:
850s\u2266bp\u22661100s\u2003\u2003(1)
1100s\u2266bp\u2266150\u2003\u2003(2)
where
s represents an SP value of the organic solvent, and
bp represents a boiling point of the organic solvent.
10. The process for producing polymer polyol according to claim 2, wherein (II) is at least one selected from the group consisting of methanol, ethanol, isopropanol, butanol, xylene, toluene, hexane, heptane, cyclohexane and methyl ethyl ketone.
11. The process for producing polymer polyol according to claim 2, wherein the polymer polyol contains 25 to 75 mass % of polymer (B) which is a polymer of (b).
12. The process for producing polymer polyol according to claim 2, wherein (b) comprises acrylonitrile andor styrene in an amount of 50 mass % or more.
13. The process for producing polymer polyol according to claim 12, wherein the content of acrylonitrile in polymer polyol is reduced to 100 ppm or less and the content of styrene in polymer polyol is reduced to 150 ppm or less.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An NMR spectrometer having a magnet for producing a static magnetic field for NMR measurements, a sample tube placed within the static magnetic field produced by the magnet and holding a deuterated solvent therein, and a microchip reactor inserted inside the sample tube,
wherein said microchip reactor includes an introduction portion for introducing plural reagents from plural channels and a reaction portion disconnectably connected with the introduction portion and acting to cause a reagent or a reaction liquid introduced from the introduction portion to mix and react with another reagent,
wherein said introduction portion has an introduction channel for introducing a reagent introduced from the outside into the reaction portion and a discharge channel for permitting the reaction liquid discharged from the reaction portion to be discharged to the outside, and
wherein said reaction portion has (i) a reaction channel in communication with the introduction channel and acting to cause plural reagents pumped from the introduction channel to be mixed and reacted with each other and (ii) a discharge passage for connecting the reaction channel and the discharge channel with each other to return the reaction liquid produced in the reaction channel to the introduction portion.
2. An NMR spectrometer as set forth in claim 1, wherein said introduction portion is a microchip reactor having a substrate of a chemically-resistant resin and a microchannel formed in the substrate.
3. An NMR spectrometer as set forth in claim 1 or 2, wherein inlet holes for introducing reagents and a discharge hole for discharging a reaction liquid are formed in the same side surface of said introduction portion.
4. An NMR spectrometer as set forth in claim 1, wherein said reaction portion is a microchip reactor having a substrate of glass or quartz and a microchannel formed in the substrate.
5. A method of NMR measurement implemented by an NMR spectrometer having a magnet for producing a static magnetic field for NMR measurements, a sample tube placed in a vertical bore formed in the magnet and holding a deuterated solvent therein, and a microchip reactor inserted inside the sample tube, said method of NMR measurement consisting of introducing a sample solution to be investigated into channels in the microchip reactor while the microchip reactor is inserted inside the sample tube holding the deuterated solvent therein.
6. A method of NMR measurement as set forth in claim 5, wherein said sample solution is measured by NMR spectroscopy while stopping flow of the sample solution.
7. A method of NMR measurement as set forth in claim 5, wherein said sample solution is measured by NMR spectroscopy without stopping flow of the sample solution.
8. A method of NMR measurement as set forth in any one of claims 5 to 7, wherein said sample solution is delivered from a syringe pump or pipette.
9. A method of NMR measurement as set forth in claim 8, wherein said sample solution is forcibly injected by a manual injector into flow of the solvent delivered by a syringe pump, HPLC pump, or pipette.
10. A method of NMR measurement as set forth in any one of claims 5 to 7, wherein said sample solution is delivered by an HPLC autosampler.
11. A method of NMR measurement as set forth in claim 10, wherein said sample solution is forcibly injected by the HPLC autosampler into flow of a solvent delivered by an HPLC pump.