公开(公告)号：US20150299545A1

公开(公告)日：2015-10-22

申请号：US14646227

申请日：2013-11-20

Applicant: KURARAY CO., LTD.

Inventor： Kazumasa KUSUDO ,  Hideo HAYASHI ,  Yasuhiro TSUGITA ,  Sigehiro NIEDA

IPC: C09K3/22

CPC classification number: C09K3/22 ,  C08L2205/025 ,  C08L2205/16 ,  C09D5/00 ,  C09D7/40 ,  C09D129/04 ,  C08L29/04

Abstract: Provided is a dust scatter preventing agent capable of preventing scattering of dust for a long period of time, by improving the strength of a coating layer formed on a surface of a tailing at a tailing accumulation site. A dust scatter preventing agent comprising an aqueous solution or aqueous dispersion that includes a hydrophilic polymer such as polyvinyl alcohol or a synthetic resin emulsion that has a property of being solidified and that has a contact angle with water of 45 degrees to 78 degrees, and an insoluble fiber material such as vinylon that has a cut length that is within a range of 0.5 mm to 30 mm, and a fineness that is within a range of 0.1 dtex to 20 dtex, with an amount of the insoluble fiber material with respect to the hydrophilic polymer being 0.1 to 1 by mass ratio, is spread over a surface of an object that includes fine particles having a particle size of 100 μm or less and hardened to form a coating layer on the surface of the object.

Abstract translation: 本发明提供能够通过提高形成在拖尾堆积部位的尾料表面上的被覆层的强度，能够长时间地防止灰尘飞散的防尘散射防止剂。 一种粉尘防止剂，其包含水性溶液或水分散体，其包含亲水性聚合物如聚乙烯醇或合成树脂乳液，其具有固化的性质并且与水的接触角为45度至78度，以及 切断长度在0.5mm〜30mm的范围内，细度为0.1dtex〜20dtex的不溶性纤维材料如维尼纶，其中不溶性纤维材料的量相对于 亲水性聚合物的质量比为0.1质量％〜1质量倍数分散在包含粒径为100μm以下的细微粒子的物体的表面上并硬化，以在物体表面形成被覆层。