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US 5,766,277 AGranted
Coated abrasive article and method of making same
AssigneeMinnesota Mining and Manufacturing Company
InventorsRobert J. DeVoe, Gregg D. Dahlke, Kimberly K. Harmon, Craig A. Masmar
Life of this patent
Estimating the term…
Abstract
A coated abrasive article comprises a backing, a first binder (i.e., a make coat) on the backing, and a plurality of abrasive particles in the first binder. The first binder precursor is an energy-curable melt-processable resin containing an epoxy resin, a polyester component, a polyfunctional acrylate component, and a curing agent for crosslinking the epoxy resin that is cured to provide a crosslinked make coating. The invention also relates to a method of producing such coated abrasive articles and a surface-treated porous cloth material.
Claims50
A coated abrasive article, comprising:
- a) a backing having a front surface and a back surface;
- b) a binder on said front surface of said backing, wherein said binder is a cured or crosslinked binder precursor, wherein said binder precursor is an energy-curable melt-processable resin and comprises:
- i) an epoxy resin,
- ii) a polyfunctional acrylate component,
- iii) a polyester component;
- iv) a curing agent for crosslinking said epoxy resin;
- and
- c) a plurality of abrasive particles, wherein said abrasive particles are at least partially embedded in said binder.
5 more elements
A coated abrasive article, comprising:
- a) a backing having a front surface and a back surface;
- b) a binder on said front surface of said backing, wherein said binder is a cured or crosslinked binder precursor, wherein said binder precursor comprises:
- i) an epoxy resin,
- ii) a polyfunctional acrylate component,
- iii) a polyester component;
- iv) a curing agent for crosslinking said epoxy resin;
- and
- c) a plurality of abrasive particles, wherein said abrasive particles are at least partially embedded in said binder.
5 more elements
A coated abrasive article, comprising:
- a) a backing having a front surface and a back surface, wherein said backing has a plurality of hooking stems protruding from said back surface;
- b) a binder on said front surface of said backing, wherein said binder is a cured or crosslinked binder precursor, wherein said binder precursor is a hot melt processable pressure sensitive adhesive and comprises:
- i) an epoxy resin,
- ii) a polyfunctional acrylate component,
- iii) a polyester component;
- iv) a curing agent for crosslinking said epoxy resin;
- and
- c) a plurality of abrasive particles, wherein said abrasive particles are at least partially embedded in said binder.
5 more elements
A coated abrasive article, comprising:
- a) a backing having a front surface and a back surface, wherein said backing has a plurality of loops protruding from said back surface;
- b) a binder on said front surface of said backing, wherein said binder is a cured or crosslinked binder precursor, wherein said binder precursor is a hot melt pressure sensitive adhesive and comprises:
- i) an epoxy resin,
- ii) a polyfunctional acrylate component,
- iii) a polyester component;
- iv) a curing agent for crosslinking said epoxy resin;
- and
- c) a plurality of abrasive particles, wherein said abrasive particles are at least partially embedded in said binder.
5 more elements
A method of preparing a coated abrasive article, comprising the steps of:
- (a) providing a backing having a front surface and a back surface;
- (b) applying to said front surface of said backing an energy-curable, melt processable binder precursor, wherein said binder precursor comprises:
- i) an epoxy resin,
- ii) a polyfunctional acrylate component,
- iii) a polyester component,
- iv) a curing agent for crosslinking said epoxy resin;
- (c) exposing said binder precursor to an energy source to initiate at least partial curing of said binder precursor;
- (d) at least partially embedding a plurality of abrasive particles in said binder precursor, wherein step (c) and step (d) can occur in any order provided that the precursor has not cured to a point where the abrasive particles will not adhere;
- and
- (e) permitting said binder precursor to sufficiently cure to form a crosslinked coating with said abrasive particles at least partially embedded therein.
7 more elements
A method of preparing a coated abrasive article, comprising the steps of:
- (a) providing a backing having a front surface and a back surface, wherein said backing has a plurality of hooks protruding from said back surface;
- (b) applying to said front surface of said backing an energy-curable, hot melt binder precursor, wherein said binder precursor comprises:
- i) an epoxy resin,
- ii) a polyfunctional acrylate component,
- iii) a polyester component;
- iv) a curing agent for crosslinking said epoxy resin;
- (c) exposing said binder precursor to an energy producing source to initiate at least partial curing of said binder precursor;
- (d) at least partially embedding a plurality of abrasive particles in said binder precursor;
- and
- (e) permitting said binder precursor to sufficiently cure to form a crosslinked coating with said abrasive particles therein.
7 more elements
A method of preparing a coated abrasive article, comprising the steps of:
- (a) providing a backing having a front surface and a back surface, wherein said backing has a plurality of loops protruding from said back surface;
- (b) applying to said front surface of said backing an energy-curable, hot melt binder precursor, wherein said binder precursor comprises:
- i) an epoxy resin,
- ii) a polyfunctional acrylate component,
- iii) a polyester component;
- iv) a curing agent for crosslinking said epoxy resin;
- (c) exposing said binder precursor to an energy producing source to initiate at least partial curing of said binder precursor;
- (d) at least partially embedding a plurality of abrasive particles in said binder precursor;
- and
- (e) permitting said binder precursor to sufficiently cure to form a crosslinked coating with said abrasive particles therein.
7 more elements
A method of preparing a coated abrasive article, comprising the steps of:
- (a) providing a backing having a front surface and a back surface;
- (b) applying to said front surface of said backing an energy-curable binder precursor comprising:
- i) an epoxy resin,
- ii) a polyfunctional acrylate component,
- iii) a polyester component;
- iv) a curing agent for crosslinking said epoxy resin;
- (c) exposing said binder precursor to an energy source to initiate at least partial curing of said binder precursor;
- (d) at least partially embedding a plurality of abrasive particles in said binder precursor;
- and
- (e) permitting said binder precursor to sufficiently cure to form a crosslinked coating with said abrasive particles at least partially embedded therein.
7 more elements
Dependencies are inferred from the claim text.