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Title:
COATING GRINDING MATERIAL HAVING FLEXIBILITY AND FABRIC USEDTHEREIN
Document Type and Number:
Japanese Patent JPS62231059
Kind Code:
A
Abstract:
Stitch bonded fabrics suitable to be used as backings for flexible coated abrasives with facile straight tear in either the length or cross directions have (1) an areal density between 51 and 153 gm/m<2>, (2) a tensile strength in the length direction between 5.4 and 12.6 kN/m of width, (3) a tensile strength in the cross direction which is between 5.4 and 11.7 kN/m of length and is between 0.9 and 1.35 times as great as the length direction tensile strength, (4) an elongation to break in the length direction of not more than 40%, and (5) an elongation to break in the cross direction of not more than 35%. To make the coated abrasives, the fabric is prepared for coating by saturation with at least its own weight of a finishing adhesive composed primarily of latices of acrylic homopolymers, acrylic copolymers, butadiene-styrene polymers, or mixtures of these types. Conventional making, grit coating, and sizing are then performed to yield a coated abrasive with a ratio of length direction tensile modulus to cross direction tensile modulus within the range of 0.8 to 1.8.

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Inventors:
REIMONDO II PEMURITSUKU
JIRATSUJI EICHI DAAJII
Application Number:
JP4898187A
Publication Date:
October 09, 1987
Filing Date:
March 05, 1987
Export Citation:
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Assignee:
NORTON CO
International Classes:
B24D11/00; B24D11/02; D04B21/14; C08J5/14; (IPC1-7): B24D11/00; C08J5/14; D04B21/14
Domestic Patent References:
JPS5841951A1983-03-11
JPS57114366A1982-07-16
Attorney, Agent or Firm:
Aoki Akira