Promerus, Lcc

International Business Machines Corporation

Sumitomo Bakelite Company Limited

Bayer Antwerp, N.v.

Entegris, Inc.

Leah Langsdorf

Larry Funderburk Rhodes

Andrew Bell

W C Peter Tsang

Oleksandr Burtovyy

Christopher Apanius

Edmund Elce

Wei Zhang

Brian Bedwell

Ryan M Wilks

Hiroshi Ito

Richard Vicari

Robert A Shick

Brian F Knapp

Keitaro Seto

Jeffrey L Robbins

Ulrich B Holeschovsky

Chun S Chang

Venkat R Dukkipati

Harry Stefanou

Brian K Bennett

David Gibala

Andrew A Sobek

Edwin P Boyd

Howard A Sidaway

Robert R Pollock

Pushkara Rao Varanasi

Sina Bonyadi

Guodong Deng

Shun Hayakawa

Zhifeng Li

Ruslan Burtovyy

Carrie Lynn Frazee

Brain Knapp

WC Peter Tsang

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).

Porous poly (cyclic olefin) membranes

Embodiments in accordance with the present invention encompass a composition containing a latent catalyst and a compound capable of generating a Bronsted acid with a counterion capable of coordinating and activating the latent catalyst along with one or more monomers which undergo ring open metathesis polymerization (ROMP) and one or more multi-functional crosslinkable molecules when said composition is exposed to a suitable radiation forms a three-dimensional (3D) object. The catalyst system employed therein can be sensitive to oxygen and thus inhibits polymerization in ambient atmospheric conditions. The three-dimensional objects made by this process exhibits improved mechanical properties, particularly, high distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.

High impact strength 3D printing materials derived from polycycloolefin monomers and crosslinkers

Embodiments in accordance with the present invention encompass compositions comprising a organopalladium compound, a photoacid generator, a photosensitizer, one or more olefinic monomers and a stabilizer, such as for example a hindered amine, which undergo vinyl addition polymerization when said composition is exposed to a suitable actinic radiation to form a substantially transparent film. The compositions of this invention are stable at room temperature for several days to several months and can also be stored at higher temperatures from about 40&#xb0; C. to 60&#xb0; C. for several days and undergo mass polymerization only when subjected to suitable actinic radiation. The monomers employed therein have a range of optical and mechanical properties, and thus these compositions can be tailored to form films having various opto-electronic properties. Accordingly, compositions of this invention are useful in various applications, including as coatings, encapsulants, fillers, leveling agents, sealants, adhesives, among others.

Hindered amine stabilized UV active organopalladium catalyzed polycycloolefin compositions as optical materials

A variety of polycycloalkyl polynorbornene monomers and polymers derived therefrom are disclosed and claimed. The polymers and copolymers as disclosed herein are useful for forming pervaporation membranes, among other uses.

Cycloalkylnorbornene monomers, polymers derived therefrom and their use in pervaporation

Embodiments in accordance with the present invention encompass polymer compositions that are useful in the assembly of microelectronic components onto a variety of substrate materials. Such polymer compositions providing for both holding the microelectronic components at desired positions on a substrate, providing fluxing for the solder bonding of such components to the substrate and remaining in place as an underfill for such components.

Polymer composition for microelectronic assembly

Embodiments in accordance with the present invention provide forming various polycycloalkyl polynorbornene polymers and copolymers which are useful for forming pervaporation membranes, the membranes themselves and methods of making such membranes.

Embodiments in accordance with the present invention are directed to poly(lactide) compositions that are useful for forming temporary bonding layers that serve to releasably join a first substrate to a second substrate as well as methods of both forming such a temporary bond and methods of debonding such substrates. Some such poly(lactide) compositions encompass a casting solvent, a photoacid generator and optionally a sensitizer and/or an adhesion promoter.

Polymer compositions for temporary bonding

Embodiments in accordance with the present invention encompass polymer compositions that act as both a tack agent and a fluxing agent for the assembly of microelectronic components onto a variety of substrate materials. Such polymer compositions embodiments encompass a sacrificial polymer, a carrier solvent, a thermal acid generator and, optionally, formic acid.

Embodiments according to the present invention relate to sacrificial polymer compositions that include polycarbonate polymers having repeat units derived from stereospecific polycyclic 2,3-diol monomers. The sacrificial polymer compositions also include an acid generator that is selected from at least one photoacid generator and/or at least one thermal acid generator. In addition, embodiments according to the present invention relate to a method of forming a structure that includes a three-dimensional space interposed between a substrate and an overcoat layer, and a method of temporarily bonding first and second substrates together, which make use of the polycarbonate polymers.

Sacrificial polymer compositions including polycarbonates having repeat units derived from stereospecific polycyclic 2,3-diol monomers

Embodiments in accordance with the present invention provide forming polynorbornenes useful for forming pervaporation membranes, the membranes themselves and methods of making such membranes.

Polynorbornene pervaporation membrane films, preparation and use thereof

Embodiments in accordance with the present invention are directed to polymer compositions that are useful for forming temporary bonding layers that serve to releasably join a first substrate to a second substrate as well as methods of both forming such a temporary bond and methods of debonding such substrates. Some such polymer compositions encompass a casting solvent, a photoacid generator and optionally a sensitizer and/or an adhesion promoter.

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Akron, OH, United States of America

Leah Langsdorf