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公开(公告)号:US20210000248A1
公开(公告)日:2021-01-07
申请号:US16980276
申请日:2019-03-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: James L. Erickson , Samad Javid , Lijun Zu
Abstract: A brush assembly comprising a cushion pad and a plurality of brushes secured to the cushion pad. The cushion pad has a 25% compressibility within the range of 6.9 kPa (1 psi) to 2413 kPa (350 psi). At least one of the plurality of brushes comprises: a brush base, and bristles, the bristles comprising moldable polymeric material and abrasive particle additives.