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US 6,638,601 B1Granted
Coated abrasive having laminate backing material and method of making the same
OwnerRobert A. Follensbeeinventor
Life of this patent
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Abstract
The invention provides coated abrasive products having as a backing material a barrier-coated tear-resistant laminate of fabric and paper overcoated on the barrier coating with an abrasive coating. The coated abrasive product is made by laminating at least one fabric sheet and at least one paper sheet with adhesive to provide a laminate having at least one major surface provided by the fabric sheet, coating the surface of the fabric with a barrier coating and coating the barrier coated surface with an abrasive layer.
Claims17
A coated abrasive product comprising:
- a. an abrasive layer;
- b. a barrier coating;
- and
- c. a relatively stiff, but flexible, backing comprising at least one nonwoven fabric sheet and at least one paper sheet adhesively laminated together by a thermoplastic plastic adhesive material to provide a laminate having at least one major surface provided by said fabric sheet that is coated with said barrier coating to which said abrasive layer is adhered and a second opposite major surface provided by said paper sheet, wherein the backing has an Elmendorf tear test value of at least 10,000 mN.
1 more element
Dependencies are inferred from the claim text.