申请人:Mitsui Chemicals, Inc.
公开号:EP1152024A1
公开(公告)日:2001-11-07
Disclosed are a crosslinked polyamino acid-containing particle having a core/shell structure in which the core phase is constituted of a crosslinked polyamino acid-containing particle, the shell phase is constituted of a layer having a crosslinked surface, or a coating material or resin, and a method of producing a crosslinked polyamino acid-containing particle, comprising a step of forming a shell phase by further crosslinking the surface of a particle, or applying on the surface of a particle a coating material solution, a coating material in melted condition, a resin solution or a resin in melted condition. This particle is excellent in water absorption speed, biodegradability, and water-holding ability, and useful for sanitary materials and soil improving agents.
本发明公开了一种具有核/壳结构的交联聚氨基酸粒子,其中核相由交联聚氨基酸粒子构成,壳相由具有交联表面的层或涂层材料或树脂构成、以及一种生产含交联聚氨基酸颗粒的方法,包括通过进一步交联颗粒表面或在颗粒表面涂敷涂层材料溶液、熔融状态的涂层材料、树脂溶液或熔融状态的树脂来形成壳相的步骤。这种颗粒的吸水速度、生物降解性和保水能力都很出色,可用于卫生材料和土壤改良剂。