摘要:
A thrust needle bearing with an isolating layer has a cage with rollers, washers on which the rollers run, at least one of the washers is attached to the cage, backup surfaces fixed external to each of the washers and an isolating layer attached to at least one of the washers, which is interposed between the at least one of the washers and at least one of the backup surfaces of the bearing. The isolating layer is a layer of vibration-attenuating material. Alternatively, the isolating layer is a layer of material which has properties that prevent creep or sliding wear for at least one of the backup surfaces. The isolating layer is attached to the washers by bonding, use of adhesives or mechanical means.
摘要:
An article includes a porous membrane having pores, a first selectively permeable coating supported by the membrane and a component protective against delamination of the selectively permeable coating from the porous membrane and/or any other coatings applied thereto. The first selectively permeable coating includes an antichemical, antibiological, antiradiological and/or antimicrobial agent. The protective component may be provided alone, or as an element of the first selectively permeable coating, or, a second selectively permeable coating. A laminate and methods of providing these are also provided.
摘要:
An axial rolling bearing (1) including a cage (6) which contains rolling bodies (7) and which is arranged between two running disks (2, 3) is provided, wherein the running disks (2, 3) have in each case one radial section (4, 5) which forms a raceway and in each case one axially aligned radially outer rim (8, 9) which adjoins the radial section (4, 5), which rim (8, 9) and radial section (4, 5) overlap in the axial direction. The radially outer running disk (3) has a larger diameter than the radially inner running disk (2), and at least the radially inner running disk (2) has a radially inner axially extending rim which adjoins the radial section (4) which forms the raceway. In order to be able to adjust the throughflow quantity of lubricant through the axial rolling bearing in a targeted fashion, it is provided that the radially inner rim (10) of the inner running disk (2) extends axially outward and is elongated so as to form a flange (11). The cage (6) has a radially outer section (12) which is supported against the radially outer rim (8) of the radially inner running disk (2), and the cage (6) has a radially inner section (13) which is angled so as to form an axially outwardly aligned rim (14). The flange (11) of the radially inner running disk (2) and the rim (14) of the cage (6) are formed to have the same axial direction in order to form a labyrinth seal.
摘要:
A roofing underlayment sheet includes several layers. Some of the layers are made of polymeric materials. Other of the layers are made of non-woven materials.
摘要:
Negative-working imageable elements have an imageable layer comprising a free radically polymerizable component, an initiator composition capable of generating radicals sufficient to initiate polymerization of the free radically polymerizable component upon exposure to imaging radiation, a radiation absorbing compound, one or more polymeric binders, and at least 5 weight % of core-shell particles comprising a hydrophobic polymeric core and a hydrophilic polymeric shell that is covalently bound to the polymeric core. The hydrophilic polymeric shell has one or more zwitterionic functional groups. These elements can be imaged such as by IR lasers to provide lithographic printing plates.
摘要:
Positive-working imageable elements have a substrate and an imageable layer that can be used to prepare lithographic printing plates. The imageable elements also include a radiation absorbing compound, and a mixture of first and second polymers in the same imageable layer. The first polymer has two or more centered H-bonds (hydrogen bonds) within a non-covalently bonded unit, and the second polymer is a polyvinyl acetal. This mixture of polymers in the same imageable layer provides improved solvent resistance and processing latitude without a loss in imaging speed.
摘要:
Both single-layer and multilayer imageable elements have a substrate and at least one imageable layer. The elements can be used to prepare either negative- or positive-working imaged elements, for example as lithographic printing plates. The imageable elements also include a radiation absorbing compound and a solvent-resistant polymer comprising pendant phosphoric acid groups, pendant adamantyl groups, or both. When this polymer comprises pendant adamantyl groups, they are connected to the polymer backbone through a urea or urethane group. The imageable elements have improved chemical resistance and thermal bakeability from the presence of the unique solvent-resistant polymer.
摘要:
A thrust bearing (16) for transmitting axial thrust forces between at least two gear parts (1, 5) rotating relative to each other in a gear arrangement is provided, with two coaxial, opposing race disks (17, 18) holding a cage (6) with a plurality of roller bodies (7) with radial play. To prevent discharge of lubricant to the greatest possible extent radially from the thrust bearing (16) and accordingly to be able to guarantee a sufficient axial supply of lubricant to the gear arrangement, it is provided that one race disk (17) has a smaller outer diameter than the other race disk (18), that both race disks (17, 18) each have external collars (19, 20) on the radially outer edge that extend axially inwardly, and the external collar (19) of the race disk (17) with the smaller outer diameter is covered axially by the external collar (20) of the race disk (18) with the greater outer diameter, such that an extensive encapsulation of the thrust bearing (16) against lubricant passage is guaranteed.
摘要:
Positive-working imageable elements are prepared by providing a first layer and second layers onto a substrate. Both layers include the same or different radiation absorbing compounds dispersed within different polymeric binders. After both layers are dried, they are heat treated at from about 40 to about 90° C. for at least 4 hours under conditions that inhibit the removal of moisture from the dried first and second layers. This method of preparation provides elements with improved imaging speed and good shelf life.
摘要:
Imageable elements, useful as on press developable lithographic printing plate precursors, are disclosed. The elements comprise an imageable layer over a substrate and an one or more adhesion promoting ingredients. The imageable layer comprises a polymerizable compound and a polymeric binder. The adhesion promoting ingredients are titanium chelate and/or co-polymers of a monomer having a polethylene oxide side chain with a monomer having either an acidic group or an anhydride group that has been ring opened to form an acidic group or groups.