Examples of the present disclosure provide fluoropolymers and methods for forming and using such fluoropolymers. Fluoropolymers include polyfluorobenzoxazines and polyfluoroimides. Methods for forming polyphthalonitriles are also provided. The present disclosure is further directed to compositions containing one or more fluoropolymers and one or more metal oxides.

A composition exhibits excellent heat resistance and mounting reliability when bonding a semiconductor power element to a metal lead frame, which is also free of lead and thereby places little burden on the environment. An electrically conductive composition contains at least a sulfide compound represented by RSR (wherein R is an organic group containing at least carbon; R is an organic group that is the same as or different from R; and R and R may be bonded to each other to form a so-called cyclic sulfide) and metal particles containing at least Cu, Sn or Ni as its essential component. Further, a conductive paste and a conductive bonding film each are produced using the electrically conductive composition. A dicing die bonding film is obtained by bonding the conductive bonding film with an adhesive tape.

Provided are a solid electrolyte composition including: an inorganic solid electrolyte having conductivity of an ion of metal belong to Group 1 or 2 in the periodic table; and a high polymer binder, in which the high polymer binder is formed of a polymer having a hard segment and a soft segment, a binder for all-solid-state secondary batteries, and an electrode sheet for batteries and an all-solid-state secondary battery each using the solid electrolyte composition.

A thermoplastic composition includes a poly(phthalamide), a poly(etherimide-siloxane), and optionally, an additive composition. The respective amounts of each component are further described herein. A method for the manufacture of the composition includes melt-mixing the components of the composition, and optionally, extruding the composition. Articles including the thermo-plastic composition are also described.

A renewable polyimide or polyamic acid formed from a reaction comprising one or more furfurylamine compounds of Formula (I) or Formula (II) and one or more dianhydride or diacid compounds and heating to a temperature of up to 350 C., as well as methods of forming thereof, and polymers comprising the polyimide or polyamic acid compounds. The renewable furan based polyimides which demonstrate excellent processability, large temperature windows for processing of resin systems, and are less toxic.

A composite material comprising particles containing (i) a core comprising an organic polymer material that is ion-permeable, not electron conductive, and possesses reversible electrochemical activity (e.g., aromatic polyimide, polyquinone, and radical-containing polymers), and (ii) an electron conductive polymer (e.g., polythiophene, poly(3,4-ethylenedioxythiophene), polypyrrole, polyaniline, polyacetylene, or poly(p-phenylene vinylene), alkyl-substituted derivatives thereof, hydrophilized derivatives thereof, or copolymer thereof) coated onto and encapsulating the core. Also described herein are batteries (e.g., lithium-ion) in which at least the cathode contains the composite material described above. Also described herein are capacitors in which at least one electrode contains the composite material described above.

A polyimide composition for a package structure is provided. The polyimide composition includes a polyimide precursor, a cross-linker, a photosensitizer, a first additive, a second additive and a solvent. The first additive comprises a polyether based compound, and the second additive comprises a siloxane based compound. The polyimide composition has more than 98% cyclization of the polyimide precursor when the polyimide composition is cured at a temperature range of 160 C. to 200 C.

The invention relates to a process for producing an aromatic polyimide, comprising the following steps: (a) preparing one or more salt(s) by reacting one or more aromatic tetracarboxylic acid(s) in the solid state and one or more diamine(s), optionally in the presence of one or more chain limiter(s), in the presence of one or more binder(s), comprising one or more organic liquid(s), in an amount of from 1% to 25% by weight relative to the total weight of the aromatic tetracarboxylic acid(s), of the diamine(s) and of the optional chain limiter(s), then; (b) polymerising the salt(s) obtained in step (a).

The purpose of the present invention is to provide a medical film having excellent transparency, heat resistance, and solvent resistance. This medical film is a medical film including a heat-resistant resin having a glass transition temperature measured by thermomechanical analysis TMA of 190 C. or higher wherein the medical film has a total light transmittance of 80% or higher at a thickness of 10 m and a b* value in the L*a*b* color system of 10 or lower.

A polyimide mixture including a polyimide and an amino-containing silica particle is provided. The polyimide includes a repeating unit represented by formula 1: ##STR00001##
wherein Ar includes ##STR00002##
and A includes ##STR00003##
The amino-containing silica particle is mixed with the polyimide, and is obtained by the hydrolysis condensation reaction of an alkoxysilane shown in formula 2 and an alkoxysilane shown in formula 3 in the presence of a catalyst:
Si(OR.sup.1).sub.4formula 2,
(NH.sub.2Y).sub.mSi(OR.sup.2).sub.4-mformula 3,
wherein in formula 2, R.sup.1 is a C.sub.1-C.sub.10 alkyl group; and
in formula 3, Y is a C.sub.1-C.sub.10 alkyl group or a C.sub.2-C.sub.10 alkenyl group, R.sup.2 is a C.sub.1-C.sub.10 alkyl group, and m is an integer of 1 to 3.