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US 6,786,801 B2Granted
Method for gasket removal
Assignee3M Innovative Properties Company
InventorLawrence J. Mann
Life of this patent
Estimating the term…
Abstract
Method for removing gasket material from a surface using nonwoven, three dimensional fibrous web articles employ phenolic particles.
Claims29
A method of removing gasket material from a substrate, the method comprising:
- providing abrasive article having a work surface, the abrasive article comprising:
- a scrim having a first major surface;
- a nonwoven, three dimensional fibrous web having first and second major surfaces,
- wherein the first major surface of the fibrous web is needle tacked to the first major surface of the scrim;
- and
- an abrasive layer having work surface secured to the second major surface of the fibrous web, the abrasive layer comprised of binder and a plurality of phenolic particles, wherein the phenolic particles at the work surface are free of abrasive particles larger than 6 micrometers;
- frictionally engaging at least a portion of the work surface of the abrasive article with the gasket material to be removed;
- and
- inducing relative motion between the abrasive article and the gasket material to be removed to remove at least a portion of the gasket material.
6 more elements
A method of removing gasket material from a substrate, the method comprising:
- providing a power driven abrasive device comprising a rotatable shaft having an abrasive disc having a work surface attached thereto, the abrasive article comprising:
- a scrim having a first major surface;
- a nonwoven, three dimensional fibrous web having first and second major surfaces,
- wherein the first major surface of the fibrous web is needle tacked to the first major surface of the scrim;
- an abrasive layer having work surface secured to the second major surface of the fibrous web, the abrasive layer comprised of binder and a plurality of phenolic particles, wherein the phenolic particles at the work surface are free of abrasive particles larger than 6 micrometers;
- energizing the power driven abrasive device such that the rotatable shaft rotates;
- and
- frictionally engaging at least a portion of the work surface of the rotating abrasive disc with the gasket material to be removed such that at least a portion of the gasket material is removed.
5 more elements
Dependencies are inferred from the claim text.