Abstract: Embodiments in accordance with the present invention encompass photosensitive compositions containing a variety of soluble polyimide polymers and various additives including photoacid generator, photo radical generator and one or more photo crosslinking agents which are useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays. In some embodiments the compositions of this invention are shown to feature excellent hitherto unachievable mechanical properties. The negative images formed therefrom can be readily cured at lower temperatures than the conventional polyimides and exhibit improved thermo-mechanical properties, among other property enhancements.

Abstract: Embodiments in accordance with the present invention encompass polyamic acid or polyimide polymers containing a reactive unsaturated cyclic anhydride end group as well as photosensitive compositions made therefrom which are useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays. In some embodiments the compositions of this invention are shown to feature excellent hitherto unachievable mechanical properties. The negative images formed therefrom exhibit improved thermo-mechanical properties, among other property enhancements.

Abstract: Embodiments in accordance with the present invention encompass compositions containing the polymer formed from a variety of polycycloolefinic monomers at least one of which monomer contains an additional unpolymerized ethylenic bond, melamine, fillers such as hexagonal boron nitride or silica, a crosslinker, a free radical initiator, a tackifier and one or more suitable additives. The compositions of this invention can be formed into a variety of three-dimensional insulating articles upon exposure to suitable high temperature, such as for example films. The objects formed from the compositions of this invention exhibit hitherto unattainable low dielectric constant and low-loss properties, fire-retardancy and very high thermal properties. The compositions of this invention are useful in various applications, including as insulating materials in millimeter wave radar antennas, among others.

Abstract: Embodiments in accordance with the present invention encompass compositions containing a blend of polymers formed from a variety of polycycloolefinic monomers at least one of which monomer contains an olefinic functionality and another monomer contains an anhydride functionality, melamine, montmorillonite and optionally other fillers such as silica, a crosslinker, a free radical initiator, a tackifier and one or more suitable additives. The compositions of this invention can be formed into a variety of three-dimensional insulating articles upon exposure to suitable high temperature, such as for example films. The objects formed from the compositions of this invention exhibit hitherto unattainable low dielectric constant and low-loss properties, fire retardancy and very high thermal properties. The compositions of this invention are useful in various applications, including as insulating materials in millimeter wave radar antennas, among others.

Abstract: Embodiments in accordance with the present invention encompass compositions containing the polymer formed from a variety of polycycloolefinic monomers at least one of which monomer contains an additional unpolymerized ethylenic bond, melamine, clay such as bentonite or montmorillonite, optionally fillers such as hexagonal boron nitride or silica, a crosslinker, a free radical initiator, a tackifier and one or more suitable additives. The compositions of this invention can be formed into a variety of three-dimensional insulating articles upon exposure to suitable high temperature, such as for example films. The objects formed from the compositions of this invention exhibit hitherto unattainable low dielectric constant and low-loss properties, fire-retardancy and very high thermal properties. The compositions of this invention are useful in various applications, including as insulating materials in millimeter wave radar antennas, among others.

Abstract: Embodiments in accordance with the present invention encompass compositions encompassing a procatalyst, a photoacid generator, a photosensitizer and one or more monomers which undergo vinyl addition polymerization when said composition is exposed to suitable UV irradiation and heated to a temperature from 50° C. to 100° C. to form a substantially transparent film. The monomers employed therein have a range of refractive index from 1.4 to 1.6 and thus these compositions can be tailored to form transparent films of varied refractive indices. Accordingly, compositions of this invention are useful in various opto-electronic applications, including as coatings, encapsulants, fillers, leveling agents, among others.

Abstract: The disclosure provides certain porous membranes comprised of cyclic polyolefin polymers, such as poly(norbornene)s. In one embodiment, a poly(norbornene) polymer is dissolved in tetrahydrofuran, cast into a film and subjected to solvent induced phase separation to provide a porous filter membrane (i.e., film).

Abstract: A process for the preparation of high purity norbornene alkyl silyl ether is disclosed and claimed. Specifically, a process for the preparation of industrial scale high purity norbornene methyl silyl ether is disclosed and claimed. The high purity monomers prepared in accordance with the process of this invention are useful in a variety of applications including but not limited to the preparation of high quality and high purity polynorbornenes having utility in a variety of electronic applications, among various other applications.

Abstract: Embodiments in accordance with the present invention encompass compositions encompassing a procatalyst, a photoacid generator, a photosensitizer and one or more monomers which undergo vinyl addition polymerization when said composition is exposed to suitable UV irradiation and heated to a temperature from 50° C. to 100° C. to form a substantially transparent film. The monomers employed therein have a range of refractive index from 1.4 to 1.6 and thus these compositions can be tailored to form transparent films of varied refractive indices. Accordingly, compositions of this invention are useful in various opto-electronic applications, including as coatings, encapsulants, fillers, leveling agents, among others.

Abstract: Embodiments encompassing a series of polymers containing cyano substituted norbornene monomers and maleic anhydride and/or maleimide monomers are disclosed. The polymers exhibit unusual oil resistant properties and compositions derived therefrom are photopatternable, thus having utility in a variety of optoelectronic material applications, among various other uses. More specifically, embodiments encompassing compositions containing a variety of co- and ter-polymers of cyano substituted norbornene monomers, maleic anhydride and maleimide monomers, a photoactive compound and a suitable epoxy crosslinking agents are disclosed. The compositions exhibit excellent photopatternability, high transparency, high heat resistance and most importantly oil resistant properties, thus finding applications in fabricating a variety of automotive parts.

Abstract: A process for the preparation of high purity norbornene alkyl silyl ether is disclosed and claimed. Specifically, a process for the preparation of industrial scale high purity norbornene methyl silyl ether is disclosed and claimed. The high purity monomers prepared in accordance with the process of this invention are useful in a variety of applications including but not limited to the preparation of high quality and high purity polynorbornenes having utility in a variety of electronic applications, among various other applications.

Abstract: Embodiments in accordance with the present invention encompass a composition comprising one or more of polycyclic olefinic monomers of formula (I) and one or more monomers of formula (III) for forming anion exchange membrane optionally in combination with one or more monomers of formula (II). The composition undergoes mass vinyl addition polymerization either under thermal or photolytic conditions and can be formed into ionomers on a suitable membrane support. The membrane supports thus formed are suitable as anion exchange membranes for fabricating a variety of electrochemical devices, among others. More specifically, the ionomeric membranes are formed on a variety of supports which contains a variety of quaternized amino functionalized norbornene monomeric units which are lightly crosslinked (less than five mol %). The membranes so formed exhibit very high ionic conductivity of up to 280 mS/cm at 80° C.

Abstract: Embodiments in accordance with the present invention encompass compositions comprising a heteroaryl compound ligated palladium compound, a photoacid generator, a photosensitizer and one or more olefinic monomers which undergo vinyl addition polymerization only when said composition is exposed to a suitable actinic radiation to form a substantially transparent film. The composition of this invention exhibit unusual shelf-life stability and are photolytically active even in the presence of air. The monomers employed therein have a range of optical and mechanical properties, and thus these compositions can be tailored to form films, including thin films, having various opto-electronic properties even under atmospheric conditions without the need of inert atmosphere. Accordingly, compositions of this invention are useful in various applications, including as coatings, encapsulants, fillers, leveling agents, among others.

Abstract: The present invention relates to photosensitive compositions containing PFAS-free polynorbornene (PNB) copolymers and terpolymers in combination with certain additives that are useful for forming microelectronic and/or optoelectronic devices and assemblies thereof, and more specifically to compositions encompassing PFAS-free PNBs and certain multifunctional crosslinking agents, and two or more phenolic compounds which are resistant to thermo-oxidative chain degradation and exhibit improved mechanical properties.

Abstract: The present invention relates to photosensitive compositions containing PFAS-free polynorbornene (PNB) terpolymers and certain additives that are useful for forming microelectronic and/or optoelectronic devices and assemblies thereof, and more specifically to compositions encompassing PFAS-free PNBs and certain multifunctional crosslinking agents, and two or more phenolic compounds which are resistant to thermo-oxidative chain degradation and exhibit improved mechanical properties.

Abstract: Embodiments in accordance with the present invention encompass a composition comprising one or more of polycyclic olefinic monomers of formula (I) and one or more monomers of formula (III) for forming anion exchange membrane optionally in combination with one or more monomers of formula (II). The composition undergoes mass vinyl addition polymerization either under thermal or photolytic conditions and can be formed into ionomers on a suitable membrane support. The membrane supports thus formed are suitable as anion exchange membranes for fabricating a variety of electrochemical devices, among others. More specifically, the ionomeric membranes are formed on a variety of supports which contains a variety of quaternized amino functionalized norbornene monomeric units which are lightly crosslinked (less than five mol %). The membranes so formed exhibit very high ionic conductivity of up to 280 mS/cm at 80° C.

Abstract: Embodiments in accordance of this invention relates generally to a composition containing polymers formed from one or more polycycloolefinic monomers at least one of which monomers containing a pendant maleimide group and a monomer which is capable of undergoing 2+2 cycloaddition reaction with the pendant group. More specifically, in an embodiment of this invention there is provided a polymer derived from one or more substituted or unsubstituted norbornene derivatives among which at least one monomer contains a substituted or unsubstituted maleimide pendant group, which polymer in combination with a monomer containing a substituted or unsubstituted maleimide forms a composition which can be used for a number of photopatternable polymeric layer when exposed to suitable actinic radiation. For example, the compositions of this invention can be used to form UV initiated nanoimprinted layers having utility in a number of applications including microfluidic devices, among others.

Abstract: Embodiments in accordance with the present invention encompass a variety of polymers derived from polycyclic olefin monomers, such as hydrocarbon functionalized norbornenes. The polymers so formed function as ionomers and are suitable as anion exchange membrane for fabricating a variety of electrochemical devices, among others. More specifically, the ionomeric polymers used herein are derived from a variety of quaternized amino functionalized norbornene monomers and are lightly crosslinked (less than ten mol %). The membranes made therefrom exhibit very high ionic conductivity of up to 198 mS/cm at 80° C. This invention also relates to using an anion conducting solid polymer electrolyte as the ion conducting medium between the two electrodes and the ion conducting medium within the electrodes acting as the ionic conduit between electroactive material and electrolyte. The electrochemical devices made in accordance of this invention are useful as fuel cells, gas separators, and the like.

Abstract: Embodiments in accordance with the present invention encompass a variety of polymers derived from polycyclic olefin monomers, such as hydrocarbon functionalized norbornenes. The polymers so formed function as ionomers and are suitable as anion exchange membrane for fabricating a variety of electrochemical devices, among others. More specifically, the ionomeric polymers used herein are derived from a variety of quaternized amino functionalized norbornene monomers and are lightly crosslinked (less than ten mol %). The membranes made therefrom exhibit very high ionic conductivity of up to 198 mS/cm at 80° C. This invention also relates to using an anion conducting solid polymer electrolyte as the ion conducting medium between the two electrodes and the ion conducting medium within the electrodes acting as the ionic conduit between electroactive material and electrolyte. The electrochemical devices made in accordance of this invention are useful as fuel cells, gas separators, and the like.

Abstract: Embodiments in accordance with the present invention encompass compositions containing a polycycloolefinic polymer and at least one diazirine compound as described herein which when subjected to a suitable temperature or actinic radiation undergoes crosslinked network to form a three-dimensional insulating article which exhibits hitherto unattainable low dielectric constant and low-loss properties, and very high thermal properties. The compositions of this invention may additionally contain hydrogenated tackifiers, which provide much improved adhesive properties and are suitable in a number of opto-electronic applications including copper-clad laminates, among others. The compositions of this invention are also useful as insulating materials in millimeter wave radar antennas, among others.