发明授权
- 专利标题: Method for preparing mixtures for abrasive articles
- 专利标题(中): 制备磨料制品混合物的方法
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申请号: US689575申请日: 1996-08-12
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公开(公告)号: US5611827A公开(公告)日: 1997-03-18
- 发明人: Janet L. Hammarstrom , Michael J. Lemberger , Mark W. Rowden , Arno Gardziella
- 申请人: Janet L. Hammarstrom , Michael J. Lemberger , Mark W. Rowden , Arno Gardziella
- 申请人地址: MA Worcester
- 专利权人: Norton Company
- 当前专利权人: Norton Company
- 当前专利权人地址: MA Worcester
- 主分类号: B24D3/28
- IPC分类号: B24D3/28 ; B24D5/02 ; B24D5/12 ; B24D18/00 ; C09K3/14
摘要:
An improved method for preparing a molding material for abrasive articles has been developed. The method includes the step of continuously blending an abrasive material with a curing agent and measured portions of two phenol-novolac resins, one of which has a phenol-formaldehyde molar ratio in the range of about 1:0.2 to 1:0.35. The blending composition can also include various other materials, such as fillers. The resulting product is a flowable, granular material homogeneously coated with the phenol-novolac resins. The product can be directly molded, i.e., without an aging step, into various abrasive articles, such as grinding wheels.In another embodiment, either a continuous or discontinuous technique can be used to blend the phenol-novolac resins, and the molded product is then cold pressed or warm pressed at a pressing temperature less than about 140.degree. C.
公开/授权文献
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