公开(公告)号：US6086664A

公开(公告)日：2000-07-11

申请号：US76785

申请日：1998-05-12

申请人： Kay Y. Blohowiak ,  Kenneth A. Krienke ,  Larry K. Olli ,  Charles W. Newquist

发明人： Kay Y. Blohowiak ,  Kenneth A. Krienke ,  Larry K. Olli ,  Charles W. Newquist

IPC分类号： C09D183/04 ,  C09D4/00 ,  B32B2/04

CPC分类号： C04B41/4922 ,  C04B41/009 ,  C09D183/04 ,  C04B2111/00982

摘要： A process of waterproofing alumina-rich or silica-rich fibrous thermal insulation material, the process including the steps of:(a) providing an alumina-rich or a silica-rich fibrous material;(b) providing a waterproofing solution including:(1) a carrier solvent selected from the group consisting of aliphatic alcohols having from 1C to 6C, water, and mixtures thereof; and(2) an alkoxysilane defined by the formula R.sub.4-x -Si-(O-R').sub.x where x is 1-3 and R is selected from the group consisting of alkyl groups having from 1C to 10C, hydrogen, or fluorocarbon groups having from 1F to 15F; and where O-R' is an alkoxy group having from 1C to 5C, or a mixture of alkoxysilanes defined by the above formula R.sub.4-x -Si-(O-R').sub.x ; and optionally(3) modifiers including acids, such as acetic acid or nitric acid, or bases, such as ammonium hydroxide, RNH.sub.2, R.sub.2 NH, or R.sub.3 N, or MOH, where R is selected from the group consisting of alkyl groups having from 1C to 10C or hydrogen, and where M=Na, Li, or K;(c) contacting the fibrous material with the waterproofing solution for a sufficient amount of time to waterproof the fibrous material; and(d) curing the coated fibrous material to render it sufficiently waterproof.A chemical solution for waterproofing alumina-rich or silica-rich fibrous thermal insulation materials, the solution including:(a) a carrier solvent selected from the group consisting of aliphatic alcohols having from 1C to 6C, water, and mixtures thereof; and(b) an alkoxysilane defined by the formula R.sub.4-x -Si-(O-R').sub.x where x is 1-3 and R is selected from the group consisting of alkyl groups having from 1C to 10C, hydrogen, or fluorocarbon groups having from 1F to 15F; and where O-R' is an alkoxy group having from 1C to 5C, or a mixture of alkoxysilanes defined by the above formula R.sub.4-x -Si-(O-R').sub.x ; and optionally(c) modifiers including acids, such as acetic acid or nitric acid, or bases, such as ammonium hydroxide, RNH.sub.2, R.sub.2 NH, or R.sub.3 N, or MOH, where R is selected from the group consisting of alkyl groups having from 1C to 10C or hydrogen, and where M=Na, Li, or K.