Abstract: Provided are: a water-absorbing agent achieving, in a balanced manner, both good physical properties and a decrease in speed of coloration with lapse of time even if the water-absorbing agent has a high moisture absorbing speed due to having a large specific surface area; and an absorbent body having a low ratio of pulp and achieving, in a balanced manner, both good physical properties suitable for a thin disposable diaper and a decrease in speed of coloration with lapse of time.

Abstract: The degree of freedom of a sound-absorbing device in terms of size is increased, maintaining easy mounting operation of the sound-absorbing device, even if the sound-absorbing device has a greater length. The sound-absorbing device 1, which alleviates and absorbs a sound generated by fuel movement in a fuel tank in such a state that the sound-absorbing device is put into the tank through an opening E formed in the tank and is mounted to the tank, has a three-dimensional structure, which has a narrower width X than a width of the opening and a greater length Y than the width of the opening E; and the sound-absorbing device comprising plural sound-absorbing parts 2A and 2B coupled together through a coupling portion 3 in an intermediate position in a longitudinal direction extending along the length Y.

Abstract: The degree of freedom of a sound-absorbing device in terms of size is increased, maintaining easy mounting operation of the sound-absorbing device, even if the sound-absorbing device has a greater length. The sound-absorbing device 1, which alleviates and absorbs a sound generated by fuel movement in a fuel tank in such a state that the sound-absorbing device is put into the tank through an opening E formed in the tank and is mounted to the tank, has a three-dimensional structure, which has a narrower width X than a width of the opening and a greater length Y than the width of the opening E; and the sound-absorbing device comprising plural sound-absorbing parts 2A and 2B coupled together through a coupling portion 3 in an intermediate position in a longitudinal direction extending along the length Y.