Cellulosic particles, spherical object comprising cross-linked polymer particles, and adsorbent for body fluid purification
AssigneeKaneka Corporation
InventorsKouji Fujita, Tsutomu Okuyama, Kouichiro Tanaka, Satoshi Takata
Life of this patent
Estimating the term…
Abstract
The present invention relates to a cellulosic particle body comprising interconnected cellulosic small particles with small interparticle spaces and to a method of producing said cellulosic particle body which comprises dispersing cellulosic small particles in an alkaline medium and contacting the resulting suspension with a coagulating solution. In this specification, the above technology will be referred to as the first invention.
Claims8
1-17. (canceled)
A spherical type body which comprises crosslinked polymer particles having diameters within a range of 0.1×10−6 m to 10×10−3 m with a standard deviation of not greater than 100% of their mean diameter and which has a diameter of 1×10−6 m to 100×10−3 m, and satisfies the following conditions (A) to (C):
- (A) that said crosslinked polymer particles are interconnected via an organic binder comprising a non-crosslinked polymer;
- (B) that the surfaces of said crosslinked polymer particles have area(s) not covered with said organic binder but remaining exposed;
- (C) that voids exist between the interconnected crosslinked polymer particles.
24-32. (canceled)
Dependencies are inferred from the claim text.