摘要:
An open low-density abrasive article comprising in combination:(a) a lofty, open, nonwoven three-dimensional fibrous web formed of a plurality of interentangled randomly-extending polyamide staple fibers including points of intersection and contact between the fibers, the points of intersection and contact between the fibers being bonded together to form a three-dimensionally integrated structure throughout the web, wherein the fibers comprise surfaces and a fiber tenacity of less than 5 g/denier; (b) abrasive particles dispersed throughout the web and securely adhered to the surfaces of the fibers; and (c) resinous material dispersed throughout the web comprising (i) a hard phenolic resin formed as a cured product of a phenolic resin precursor distributed throughout the web and in contact with the fibers, and (ii) a modifier component of the type and in an amount effective to substantially prevent chemical degradation of the fibers while in contact with the phenolic resin precursor. The invention also relates to methods of making such an abrasive article and converted forms of the abrasive article.
摘要:
A method for making a nonwoven a abrasive article. A preferred aspect of the method comprises the steps of: a) providing a nonwoven web having a first side and a second side, the web comprising a plurality of fibers; b) frothing a liquid make coat precursor; c) applying the frothed make coat precursor to at least the first side of the web in such a manner so as to achieve a substantially uniform coating of the make coat precursor along the fibers of the web; d) spraying a plurality of fine abrasive particles onto the first side of the web, wherein the particles are sprayed so as to form a cloud of abrasive particles that deposit onto the fibers of the web in a substantially uniform distribution; and e) curing the make coat precursor to thereby form a hardened make coat which adheres the abrasive particles to the web and wherein the abrasive particles substantially protrude from the outer surface of the hardened make coat.
摘要:
Abrasive foam articles and a method of manufacture of such articles are described. The articles of the invention comprise a flexible and resilient foam substrate having first and second major substrate surfaces, at least one of the surfaces having a plurality of open cells substantially across the substrate surface, the open cells having coatable surfaces defined by interconnected voids; and a plurality of abrasive particles adhered to said coatable surfaces of said open cells in a substantially uniform manner.
摘要:
The present invention provides a flexible abrasive article containing minimal releaseable amounts of physical and chemical contaminants that may be used to clean surfaces. The abrasive article is made of a foraminous substrate, at least one binder and abrasive particles. Methods of making such abrasive articles are also provided.
摘要:
An abrasive article having an apertured coated abrasive member, filter media, and an attachment interface member is formed by an ultrasonic welding process. The abrasive article is useful for abrading a workpiece.
摘要:
The present invention provides a flexible abrasive article containing minimal releaseable amounts of physical and chemical contaminants that may be used to clean surfaces. The abrasive article is made of a foraminous substrate, at least one binder and abrasive particles. Methods of making such abrasive articles are also provided.
摘要:
An abrasive article comprises a porous abrasive member, a nonwoven filter medium, and a porous attachment fabric. A plurality of openings in the porous abrasive member cooperates with the nonwoven filter medium to allow the flow of particles from an outer abrasive surface of the porous abrasive member to the porous attachment fabric. Methods of making and using the abrasive articles are included.
摘要:
An abrasive article mounting assembly with an integral dust collection system. The abrasive attachment interface is configured to releasably engage and support an abrasive article, such as, for example, a porous abrasive sheet or disc.
摘要:
A method for manufacturing a foraminous abrasive article whereby abrasive particles are concentrated in an external surface region of a foraminous substrate. The method includes the steps of: providing a foamable, hardenable, liquid resin composition and a foraminous substrate having an external surface; foaming the resin composition effective to disperse a plurality of gas bubbles throughout the resin composition; applying the foamed resin composition to the external surface of the substrate to form a foam coating layer having an upper surface; applying a plurality of abrasive particles to the upper surface of the foam coating layer; heating the foamed coating layer effective to eliminate the gas bubbles from the foamed coating layer; and hardening the resin composition to attach the abrasive particles to the substrate. The invention also concerns the foraminous abrasive article products of this method.
摘要:
A method for making an abrasive article is described including the steps of providing an organic substrate; contacting the organic substrate with dry particulate solid material comprising a binder material, the binder material comprising a plurality of fusible organic particles, and a plurality of abrasive particles; inducing the fusible organic particles to liquefy; and solidifying the organic particles to thereby bond the particles to the organic substrate to provide an abrasive article. The invention provides a facile method for bonding abrasive particles to an organic substrate while reducing emissions at processing.