Products for use in polishing and the like and process for produ

Details Products for use in polishing and the like and process for produ Products for use in polishing and the like and process for produ

1990-07-02

1993-03-23

Bell, Mark L.

Abrasive tool making process, material, or composition

Miscellaneous

28111, 51294, 51296, 51298, 106 3, 428288, B24D 300

Patent

active

051960370

ABSTRACT:
An improved fibrous composite structure for use in grinding, cutting and/or polishing operations, normally with abrasives. Webs of fibrous materials, preferably blends of fibers having different deniers are fed to a needling apparatus and are needled, starting with at least two such webs. The needles force fibers from the webs along the path of needle travel and withdraw generally clean, leaving voids that define pores. Further individual layers are needled in like fashion to alternating opposite sides of the structure. Needles pass through an amount greater than fifty percent of the then thickness of the structure adequate to produce a unitary composite, though, and most preferably entirely through the thickness. The process for producing the composite products and embodiments of the products are also disclosed and claimed.

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