Abstract: Precisely shaped abrasive composites are disclosed. The abrasive composites comprise from 20 to 75 percent by weight at a plurality of abrasive grits and a binder.

Abstract: Precisely shaped composites and methods for making these composites are disclosed. The method of this invention comprises the steps of:(a) providing a production tool having a plurality of cavities;(b) providing a dispensing means capable of introducing a binder precursor comprising a thermosetting resin into the cavities;(c) providing a means, within a curing zone, for at least partially curing the binder precursor;(d) introducing the binder precursor into at least a portion of at least two of the cavities;(e) continuously moving the production tool through the curing zone to at least partially cure the binder precursor to provide a solidified, handleable binder;(f) removing the binder from said at least one cavity; and(g) converting the binder into precisely shaped composites.Steps (f) and (g) can be conducted simultaneously. The composites are bonded to a backing to form a coated abrasive article.

Abstract: Foamed thermoplastic articles, both filled and unfilled foamed articles have a foamed density of greater than 0.03 grams per cubic centimeters (g/cm.sup.3), cell sizes in the range of 10 to 300 micrometers (.mu.m) with cell wall thicknesses of greater than 0.1 .mu.m but less than 2 .mu.m and a process for making the same.

Abstract: Precisely shaped composites and methods for making these composites are disclosed. The method of this invention comprises the steps of:(a) providing a production tool comprising a plurality of cavities;(b) providing a dispensing means capable of introducing a binder precursor comprising a thermosetting resin into the cavities;(c) providing a means, for at least partially curing the binder precursor;(d) introducing said binder precursor into at least a portion of at least two of the cavities;(e) continuously moving the production tool through a curing zone to at least partially cure the binder precursor;(f) removing the solidified binder from the production tool; and(g) converting the solidified binderinto precisely shaped composites. Steps (f) and (g) can be conducted simultaneously. The composites can be bonded together to form a shaped mass, e.g.

Abstract: A method for forming agglomerated powder particles whereby powder particles absorb energy pulses emanating from a high intensity light source, which causes particles to soften to produce agglomerated powder particles by inter-particle contact, reducing the amount of fines, and producing agglomerated powder particles of increased average particle size, having smooth surfaces and improved flow characteristics for bulk powders.

Abstract: A coated abrasive article comprising:(a) a backing;(b) at least one layer comprising a plurality of precisely shaped abrasive particles that comprise abrasive grits and a free-radically polymerized binder, wherein said precisely shaped particles have vertexes and(c) a bonding medium which serves to adhere said precisely shaped particles to said backing;wherein the precisely shaped particles are randomly disposed on the backing such that at least a portion of said particles are oriented with said vertexes pointing toward said backing.

Abstract: Abrasive articles comprising precisely shaped particles are disclosed. The particles are bonded together to form a shaped mass, e.g., a wheel; alternatively, the particles can be bonded to a backing to form a coated abrasive article; or the particles can be bonded into a fibrous, nonwoven substrate to form a non-woven abrasive article.

Abstract: An energy polymerizable composition and process therefore, comprising a cationically polymerizable material and a catalytically effective amount of an ionic salt of an organometallic complex cation as polymerization initiator, said ionic salt of an organometallic complex cation being capable of adding an intermediate strength nucleophile or upon photolysis capable of liberating at least one coordination site, said metal in said organometallic complex cation being selected from elements of Periodic Groups IVB, VB, VIB, VIIB, and VIIIB are disclosed. Certain of the organometallic metallic polymerization initiators are novel cationic salts.

Abstract: An energy polymerizable composition and process therefore, comprising a cationically polymerizable material and a catalytically effective amount of an ionic salt of an organometallic complex cation as polymerization initiator, said ionic salt of an organometallic complex cation being capable of adding an intermediate strengeth nucleophile or upon photolysis capable of liberating at least one coordination site, said metal in said organometallic complex cation being selected from elements of Periodic Groups IVB, VB, VIB, VIIB, and VIIIB are disclosed. Certain of the organometallic metallic polymerization initiators are novel cationic salts.

Abstract: A dispersion and a method therefor wherein the dispersion has composition A or B, whereinA is a nonaqueous dispersion comprising pigment particles having an average size of less than 0.1 micrometer dispersed in an organic medium, andB is an aqueous dispersion comprising certain classes of inorganic pigment particles having an average size of less than 0.1 micrometer dispersed in an aqueous medium, wherein said classes of inorganic pigment particles are selected from the group consisting of metal oxides and metal salts.

Abstract: A dispersion and a method therefor wherein the dispersion has composition A or B, whereinA is a nonaqueous dispersion comprising pigment particles having an average size of less than 0.1 micrometer dispersed in an organic medium, andB is an aqueous dispersion comprising certain classes of inorganic pigment particles having an average size of less than 0.1 micrometer dispersed in an aqueous medium, wherein said classes of inorganic pigment particles are selected from the group consisting of metal oxides and metal salts.

Abstract: A photoconductive assembly comprising a conductive substrate, a photoconductive layer and a topcoat comprised of a cured film-forming silicone polymer. The topcoat has a thickness of between 5 and 300 nm and a melting point above 100.degree. C.

Abstract: An article having improved electrostatic charge transfer properties. The improvement in charge transfer properties results from subjecting a layer of photoconductive-insulative material or dielectric material on the charge donor or a layer of dielectric material on the charge receptor, or both layers, to plasma treatment process to provide an oxygen-enriched surface to the photoconductive-insulative layer and/or the dielectric layer.

Abstract: A reduced friction composite sheet construction comprises a semicrystalline polymeric sheet support having a first and second surface, said surfaces having in the range of 5 to 99 percent crystalline polymeric material and 1 to 95 percent amorphous polymeric material, said first surface having been subjected to sputter-etching which preferentially ablates said amorphous material compared to said crystalline material so as to provide on said first surface ridges or needles of amplitude in the range of 0.01 to 5.0 micrometers, and a separation at their apexes in the range of 0.01 to 1.0 micrometers and having an aspect ratio in the range of 0.5 to 7, said first surface having at least one of static and dynamic coefficients of friction in the range of 0.01 to 0.7, and at least one functional layer coated on said second surface of said support.

Abstract: The surface properties of solid substrates are improved by the formation of discrete sites of inorganic materials on one surface of the substrate.

Abstract: An article having a primed surface or improved electric charge transfer properties is disclosed. The surface has discrete sites of inorganic materials thereon.

Abstract: Imaging processes where charge images are transferred from one surface to another are improved by the presence of conductivity sites on at least one of the surfaces, said sites being discrete, composed of an inorganic material, and having an average length between 1.0 and 20 nm. Between 0.1 and 40% of either the photoconductive surface or dielectric layer may be covered with electrically conductive sites.