摘要:
This invention provides a method for hydrophilic cellulose fibers capable of inhibiting decrease in the degree of polymerization and whiteness degree of oxidized cellulose fibers in oxidized cellulose in which a carbon at position 6 of each glucose unit in the cellulose fiber starting material is oxidized to a carboxyl group, the method comprising (A) the step of performing dehalogenation together with reduction, the dehalogenation comprising mixing a dehalogenation agent, a reducing agent, and oxidized cellulose fibers, and removing halogens remaining in the oxidized cellulose fibers, and the reduction comprising reducing a ketone group at position 2 and/or position 3 of each glucose unit in the oxidized cellulose fibers.
摘要:
This invention provides a method for hydrophilic treatment of cellulose fibers that can prevent coloring or decrease in fiber strength. The hydrophilic treatment method comprises a first oxidation step of oxidizing cellulose fibers in a first reaction solution containing an N-oxyl compound and a re-oxidizing agent for the N-oxyl compound; and a second oxidation step of oxidizing oxycellulose fibers obtained in the first oxidation step in a second reaction solution containing an oxidizing agent for oxidizing aldehyde groups.
摘要:
The present invention provide a hydrophilized cellulose fiber producing method, comprising oxidizing cellulose fibers in a reaction solution containing a N-oxyl compound, an oxidizing agent, and a co-catalyst and oxidizing other cellulose fibers using the reaction solution again.The present invention relate to a hydrophilized cellulose fiber producing method, comprising the steps of: (1a) oxidizing cellulose fibers in a reaction solution containing a N-oxyl compound, an oxidizing agent, and sodium sulfate to provide oxidized cellulose fibers; and (1b) separating the obtained oxidized cellulose fibers from the reaction solution, and then adding other additional cellulose fibers and oxidizing agent to the reaction solution to oxidize the cellulose fibers again to provide oxidized cellulose fibers.
摘要:
The present invention provides a hydrophilized cellulose fiber producing method, comprising oxidizing cellulose fibers in a reaction solution containing a N-oxyl compound, an oxidizing agent, and a co-catalyst and oxidizing other cellulose fibers using the reaction solution again. The present invention relates to a hydrophilized cellulose fiber producing method, comprising the steps of: (1a) oxidizing cellulose fibers in a reaction solution containing a N-oxyl compound, an oxidizing agent, and sodium sulfate to provide oxidized cellulose fibers; and (1b) separating the obtained oxidized cellulose fibers from the reaction solution, and then adding other additional cellulose fibers and oxidizing agent to the reaction solution to oxidize the cellulose fibers again to provide oxidized cellulose fibers.
摘要:
This invention provides a method for hydrophilic cellulose fibers capable of inhibiting decrease in the degree of polymerization and whiteness degree of oxidized cellulose fibers in oxidized cellulose in which a carbon at position 6 of each glucose unit in the cellulose fiber starting material is oxidized to a carboxyl group, the method comprising (A) the step of performing dehalogenation together with reduction, the dehalogenation comprising mixing a dehalogenation agent, a reducing agent, and oxidized cellulose fibers, and removing halogens remaining in the oxidized cellulose fibers, and the reduction comprising reducing a ketone group at position 2 and/or position 3 of each glucose unit in the oxidized cellulose fibers.
摘要:
The vehicle-use collision mitigation apparatus includes a function of calculating a TTC indicative of a time remaining before collision with a forward obstacle on the basis of the distance to this obstacle and the reference speed therebetween, a function of alarming a driver of the vehicle of presence of a risk of collision with the obstacle if the TTC is shorter than a predetermined first time, a function of increasing a braking force generated by a braking operation performed by the driver if the TTC is shorter than a predetermined second time not longer than the predetermined first time, and a function of automatically generating a braking force if the TTC is shorter than a predetermined third time shorter than the predetermined first time. The alarming function is configured to make an alarm for a driver of a following vehicle that the preceding vehicle may decelerate abruptly.
摘要:
The present invention provides the gas barrier molded article having high permeation barrier properties against oxygen gas, water vapor and the like. A gas barrier material containing cellulose fibers having an average fiber diameter of not more than 200 nm wherein the content of carboxyl group in a cellulose ranges from 0.1 to 2 mmol/g; and further a cross-linking agent having a reactive functional group or the cellulose fibers being dried or heated or a gas barrier molded article containing a molded substrate and a layer composed of the gas barrier material on the surface of the molded substrate.
摘要:
The vehicle-use collision mitigation apparatus includes a function of calculating a TTC indicative of a time remaining before collision with a forward obstacle on the basis of the distance to this obstacle and the reference speed therebetween, a function of alarming a driver of the vehicle of presence of a risk of collision with the obstacle if the TTC is shorter than a predetermined first time, a function of increasing a braking force generated by a braking operation performed by the driver if the TTC is shorter than a predetermined second time not longer than the predetermined first time, and a function of automatically generating a braking force if the TTC is shorter than a predetermined third time shorter than the predetermined first time. The alarming function is configured to make an alarm for a driver of a following vehicle that the preceding vehicle may decelerate abruptly.
摘要:
When a drive control operation is set, a vehicle driving system sets a travel speed of a vehicle as a target travel speed, stores it as a set travel speed and starts drive control of the vehicle. When the drive control operation is resumed, the vehicle driving system compares the set travel speed stored in a memory and a recommended speed of a road on which the vehicle is traveling. When the recommended speed is smaller than the set travel speed and a speed limit change flag is kept reset, the vehicle driving system sets the recommended speed as the target travel speed, and restarts the drive control of the vehicle. When the recommended speed is larger than the set travel speed and at the same time the speed limit change flag is kept reset, the vehicle driving system sets the set travel speed as the target travel speed, and restarts the drive control of the vehicle.
摘要:
Recognition result of an objective recognized as a preceding vehicle is analyzed to judge whether this objective is correctly detected as a vehicle or not. A relative acceleration is calculated based on a relative speed corresponding to the objective when analysis result shows properness of this objective as a vehicle. The relative acceleration is set to 0 when analysis result shows improperness of the objective. An inter-vehicle control amount is corrected based on the obtained relative acceleration. The distance between the preceding vehicle and the controlled vehicle is controlled based on the corrected inter-vehicle control amount.