초록 ▼

A sound absorbing-insulating structure for vehicles includes a sound absorbing layer which contains cellulose fibers containing cotton yarns, pulp fibers, etc. and synthetic resin as principle components. The sound absorbing-insulating structure for vehicles, in which a content rate of the synthetic

A sound absorbing-insulating structure for vehicles includes a sound absorbing layer which contains cellulose fibers containing cotton yarns, pulp fibers, etc. and synthetic resin as principle components. The sound absorbing-insulating structure for vehicles, in which a content rate of the synthetic resin is in the range of 0.01 to 80 wt %, and a surface density is in the range of 0.2 to 3 kg/m2,is provided. This sound absorbing-insulating structure has a good sound absorbing-characteristic and is light in weight and inexpensive in cost.

대표청구항 ▼

A sound absorbing-insulating structure for vehicles includes a sound absorbing layer which contains cellulose fibers containing cotton yarns, pulp fibers, etc. and synthetic resin as principle components. The sound absorbing-insulating structure for vehicles, in which a content rate of the synthetic

A sound absorbing-insulating structure for vehicles includes a sound absorbing layer which contains cellulose fibers containing cotton yarns, pulp fibers, etc. and synthetic resin as principle components. The sound absorbing-insulating structure for vehicles, in which a content rate of the synthetic resin is in the range of 0.01 to 80 wt %, and a surface density is in the range of 0.2 to 3 kg/m2,is provided. This sound absorbing-insulating structure has a good sound absorbing-characteristic and is light in weight and inexpensive in cost. element, and the friction member is operatively adapted to form a part of one of the elements that contacts and transmits torque therebetween, wherein the apparatus is selected from the group consisting of clutches, brakes, transmissions, synchronizer rings, and train tracks. 2. The friction member of claim 1, wherein the friction member exhibits an elastic modulus of about 106dynes/cm2to about 107dynes/cm2. 3. The friction member of claim 1, wherein the friction surface comprises about 120 to about 1150 precisely shaped friction composites per square centimeter. 4. The friction member of claim 1, wherein the binder is prepared from a binder precursor that is radiation curable. 5. The friction member of claim 1, wherein the friction particles are carbon particles selected from the group consisting of coke, carbon black, graphite and combinations thereof. 6. The friction member of claim 1, wherein the layer of material further comprises a continuous land layer extending beneath and between the friction composites. 7. An apparatus for transmitting torque comprising: two elements operatively adapted for contacting and transmitting torque therebetween, the elements being (i) two rotatable elements or (ii) a non-rotatable element and a rotatable element; a substrate forming part of one of the elements; and a friction member comprising a layer of material fixed to the substrate, the layer of material comprising a friction surface having at least 120 precisely shaped friction composites per square centimeter, each of the precisely shaped friction composites having a cross-sectional or three dimensional shape selected from the group consisting of parallelepipeds, rectangles, cones, truncated pyramids, semicircles, circles, triangles, squares, hexagons, pyramids, octagons, and combinations thereof, wherein each of the precisely shaped friction composites further has precisely the same shape as that of a cavity on a forming tool, where each precisely shaped friction composite comprises friction particles dispersed in a binder; wherein the friction member forms a part of one of the elements that contacts the other of the elements to transmit torque therebetween. 8. The apparatus of claim 7, wherein the friction member exhibits an elastic modulus of about 106dynes/cm2to about 107dynes/cm2. 9. The apparatus of claim 7, wherein the friction surface comprises about 120 to about 1150 precisely shaped friction composites per square centimeter. 10. The apparatus of claim 7, wherein the binder is prepared from a binder precursor that is radiation curable. 11. The apparatus of claim 7, wherein the friction particles are carbon particles selected from the group consisting of coke, carbon black, graphite and combinations thereof. 12. The apparatus of claim 7, wherein the apparatus is a clutch and the substrate is a clutch plate. 13. The apparatus of claim 7, wherein the apparatus is a brake and the substrate is a brake pad. 14. The apparatus of claim 7, wherein the substrate is a synchronizer ring. 15. The apparatus of claim 7, wherein the apparatus is a transmission and the substrate is a torque converter. 16. The friction member of claim 7, wherein the layer of material further comprises a continuous land layer extending beneath and between the friction composites. 17. The apparatus of claim 7, wherein the layer of material is fixed to a backing, and wherein the backing is bonded to the substrate. 18. An apparatus for transmitting torque, comprising: a first plate member having a major surface; a second plate member having a mating surface and positioned adjacent to the major surface of the first plate member; a backing; a friction member comprising a layer of material fixed to the backing, the layer of material comprising a friction surface defined by a plurality of precisely shaped friction composites, each of the precisely shaped friction c