发明名称 |
COATABLE UREA-ALDEHYDE COMPOSITIONS CONTAINING A COCATALYST, COATED ABRASIVES MADE USING SAME, AND METHODS OF MAKING COATED ABRASIVES |
摘要 |
Coatable urea-aldehyde binder precursor compositions including a urea-aldehyde resin and a cocatalyst yield more consistent quality coated abrasives. In addition, the compositions have longer pot life and allow curing at lower temperatures. The urea-aldehyde resins have an aldehyde/urea ratio of at least about 1.0, more preferably ranging from about 1.0 to about 2.0, and a free aldehyde content ranging from about 0.1 to about 3.0 weight percent based on weight of total aldehyde. The cocatalyst consists essentially of a Lewis acid and a salt selected from the group consisting of ammonium ion salts and organic amine salts. Methods of making coated and other abrasive articles using the compositions are also described. |
申请公布号 |
WO9406839(A1) |
申请公布日期 |
1994.03.31 |
申请号 |
WO1993US07357 |
申请日期 |
1993.08.05 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
FORD, JEFFREY, E.;CHU, ELLEN, Y.;RUDE, HAROLD, E. |
分类号 |
C08L61/24;B24D3/28;B24D3/34;C08G12/12;C08L61/20;(IPC1-7):C08G12/12 |
主分类号 |
C08L61/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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