Abstract: Materials and methods for manufacturing electronic devices and semiconductor components using low dielectric materials comprising polyimide based aerogels are described. Additional methods for manipulating the properties of the dielectric materials and affecting the overall dielectric property of the system are also provided.

Abstract: Materials and methods for manufacturing electronic devices and semiconductor components using low dielectric materials comprising polyimide based aerogels are described. Additional methods for manipulating the properties of the dielectric materials and affecting the overall dielectric property of the system are also provided.

Abstract: Materials and methods for manufacturing electronic devices and semiconductor components using low dielectric materials comprising polyimide based aerogels are described. Additional methods for manipulating the properties of the dielectric materials and affecting the overall dielectric property of the system are also provided.

Abstract: The present invention relates to methods for the formation of ceramic bodies. Methods of the invention involve processing ceramic-forming compositions to form an integrally self-supporting or stabilized structure, which may then be sintered to give the full-density ceramic product. Methods of the invention may also involve densification of the ceramic body. In one set of embodiments, the volume of the integrally self-supporting structure is reduced by at least 20%. The present invention may produce ceramic bodies having greater strength and durability, since the ceramic-forming compositions may be low in viscosity and may be homogeneously blended, decreasing the possibility for defects.

Abstract: The present invention relates to methods for the formation of ceramic bodies. Methods of the invention involve processing ceramic-forming compositions to form an integrally self-supporting or stabilized structure, which may then be sintered to give the full-density ceramic product. Methods of the invention may also involve densification of the ceramic body. In one set of embodiments, the volume of the integrally self-supporting structure is reduced by at least 20%. The present invention may produce ceramic bodies having greater strength and durability, since the ceramic-forming compositions may be low in viscosity and may be homogeneously blended, decreasing the possibility for defects.

Abstract: A bladder which is particularly useful for a sole assembly of a shoe is formed of multiple layers of barrier film to provide multiple pressurized layers of cushioning fluid or gas when the bladder is filled. A multiple gas layer bladder enhances cushioning response by relying more on the response characteristics of the gas and reducing the amount of foam and the dependence on foam as a cushioning material. The internal film layers provide a truss-like geometry in cross section and act as tensile members to impart a generally smooth surface contour to the bladder. The bladder is constructed to provide complex regionalized cushioning profiles which are coupled to the anatomy of the foot and expected loads at known points.

Abstract: A bladder which is particularly useful for a sole assembly of a shoe is formed of multiple layers of barrier film to provide multiple pressurized layers of cushioning fluid or gas when the bladder is filled. A multiple gas layer bladder enhances cushioning response by relying more on the response characteristics of the gas and reducing the amount of foam and the dependence on foam as a cushioning material. The internal film layers provide a truss-like geometry in cross section and act as tensile members to impart a generally smooth surface contour to the bladder. The bladder is constructed to provide complex regionalized cushioning profiles which are coupled to the anatomy of the foot and expected loads at known points.

Abstract: A bladder which is particularly useful for a sole assembly of a shoe is formed of multiple layers of barrier film to provide multiple pressurized layers of cushioning fluid or gas when the bladder is filled. A multiple gas layer bladder enhances cushioning response by relying more on the response characteristics of the gas and reducing the amount of foam and the dependence on foam as a cushioning material. The internal film layers provide a truss-like geometry in cross section and act as tensile members to impart a generally smooth surface contour to the bladder. The bladder is constructed to provide complex regionalized cushioning profiles which are coupled to the anatomy of the foot and expected loads at known points.

Abstract: An extension indicator is provided for determining a predetermined extension applied to an extensibly deformable article such as medical bandage used in compression therapy. The indicator includes first (420) and second (430) co-operating members, each adapted to be secured to an extensibly deformable article (440). One of the members is more extensible than the other and each member (420, 430) bears visual indicia (450, 460, 470) which upon extension of the more extensible member, are adapted to align with each other to indicate a predetermined extension of the more extensible member.

Abstract: Articles for use with security documents are disclosed which include planchettes and security threads that comprise a plastic substrate having at least one security feature employing soft magnetic metal located thereon. Preferred articles comprise at least two security features where a first security feature is made up of an optionally repeating pattern of soft magnetic metal adapted to generate a signal or a series of signals in an interrogation field applied by a detection system for remote detecting and optionally for remote reading or identifying the article. A second security feature is a public security feature that comprises magnetic and/or non-magnetic metal formed indicia. The first and second security features of this invention can be coextensive features.

Abstract: Security strips or threads are provided which are suitable for at least partial incorporation in and/or for mounting on security documents or means for identification, such as labels, and which comprise the following deposited or laminated layers: at least one layer of a plastic substrate; a layer of a first security detection feature made up of identifying marks or indicia; and a layer of a second security detection feature comprising a generally invisible, optionally repeating pattern. The repeating pattern comprises at least one very thin conductive region and at least one electrically isolating region. Also provided is a security paper having such a security thread at least partially embedded therein and/or mounted on a surface thereof and a process for making the security paper. Further provided is a method of verifying the authenticity and reading the coded information of a security paper employing such a security thread.

Abstract: Disclosed are smetic liquid crystal compounds exhibiting ferroelectric behavior and having the formulaR.sup.1 --OR.sup.2).sub.a O--R.sup.3).sub.b Z--R*wherein R.sup.1 is alkyl or alkoxyalkyl, R.sup.2 and R.sup.3 are each alkylene, a is an integer of at least one, b is zero or one, R* is an optically active group containing an asymmetric center and --Z-- is an organic divalent core radical having parallel or coaxially extending bonds at the terminal ends thereof, the core radical having an axial ratio of at least two and being characterized by an essentially rigid and flat molecular structure. Presence of the ether-interrupted hydrocarbon tail moiety at the terminal end of the compounds provides a lowering in observed temperatures of phase transition.

Abstract: The disclosed invention relates to a method of manufacturing hybrid circuit boards which uses the step of electrodeposition of a photoresist composition onto said boards. This step represents improvements in the prior art use of dry film or other types of photoresists which did not conform to all three dimensional surfaces and which were not aqueous developable.

Abstract: A method of synthesizing fused ring pyridines (annulated) by co-oligomerization of .alpha.,.omega.-diynes with about molar equivalents of nitriles using a Co.sup.+1 catalyst preferably cyclopentadienyl cobalt dicarbonyl. Additionally, new compounds of tricyclic quinolizine-4-ones were produced where excess cyanoacetic ester starting materials were utilized (about 2:1 equivalent nitriles:diyne). The results with the catalyst employed indicated a stepwise mechanism in which cobalt(I) catalyst first forms a metallocycle intermediate derived from the bisacetylene. This cobalt(III) intermediate reacts preferentially with nitriles to give the product annulated pyridines in good yield. Generally, preferred conditions indicated roughly molar equivalents of reactants with no substantial excess of either reactant for the bicyclic compounds.