This disclosure relates to dielectric film forming composition containing at least one fully imidized polyimide polymer; at least one inorganic filler; at least one metal-containing (meth)acrylate compound; and at least one catalyst. The dielectric film formed by such a composition can have a relatively low coefficient of thermal expansion (CTE) and a relatively high optical transparency.

This disclosure relates to dielectric film forming compositions containing a) at least one fully imidized polyimide polymer; b) at least one metal-containing (meth)acrylates; c) at least one catalyst; and d) at least one solvent, as well as related processes and related products. The compositions can form a dielectric film that generates substantially no debris when the dielectric film is patterned by laser ablation process.

Polyimide-network battery-separator compositions are disclosed. The polyimide-network battery-separator compositions comprise a porous cross-linked polyimide network comprising a polyamic acid oligomer. The polyamic acid oligomer (i) comprises a repeating unit of a dianhydride and a diamine and terminal functional groups, (ii) has an average degree of polymerization of 10 to 70, (iii) has been cross-linked via a cross-linking agent, comprising three or more cross-linking groups, at a balanced stoichiometry of the cross-linking groups to the terminal functional groups, and (iv) has been chemically imidized to yield the porous cross-linked polyimide network. The polyimide-network battery-separator compositions also comprise an electrolyte composition comprising (i) a room temperature ionic liquid and (ii) a lithium ion. The electrolyte composition is interfused within the porous cross-linked polyimide network. Polyim ide-urea-network battery-separator compositions also are disclosed. Voltaic cells comprising a cathode, an anode, and the polyimide-network battery separator composition or the polyimide-urea-network battery separator composition are also disclosed.

A photosensitive microcapsule having a shell encapsulating a core material. The core material can comprise a benefit agent and the shell can comprise a photosensitive polymer. The photosensitive polymer can include one or more photosensitive moieties having a substituted amine and a 1,3 dione moiety. The core material can be released from the photosensitive microcapsule upon exposure to an electromagnetic radiation field selected from the group consisting of infrared radiation, visible light, ultraviolet radiation and mixtures thereof.

A method is disclosed for the manufacture of a bis(phthalimide), and polyetherimides derived therefrom, by reacting a phthalic anhydride having the formula with an organic diamine having the formula H.sub.2NRNH.sub.2, in a solvent, at a temperature from 140 C. to 220 C., and a pressure from 0 psig to 100 psig, in the presence or absence of a phase transfer catalyst, to form a bis(phthalimide) having the formula wherein a polyetherimide polymer is added either before or after the imidization reaction, to produce a bis(phthalimide) composition having a percent solids content of 18% to 30%, which bis(phthalimide) composition has a viscosity of less than 4000 cP at a shear rate of less than 30 sec1 and temperaturefrom 140 C. to 180 C. as measured in a spindle viscometer.

##STR00001##

A gas separation membrane includes a gas separation layer containing a polyimide compound and the polyimide compound has a repeating unit represented by Formula (I).

##STR00001##

In Formula (I), R.sup.f1, R.sup.f4, R.sup.f5, and R.sup.f8 each independently represent an alkyl group. R.sup.f2, R.sup.f3, R.sup.f6, R.sup.f7, and R.sup.f9 to R.sup.f16 each independently represent a hydrogen atom or a substituent, and at least one of R.sup.f2, R.sup.f3, R.sup.f6, R.sup.f7, and R.sup.f9, . . . , or R.sup.f16 represents a specific polar group. A represents a single bond or a divalent linking group having a specific structure. R represents a mother nucleus having a specific structure.

Provided is an aspartic acid composition containing aspartic acid and an impurity, the impurity containing at least one selected from the group consisting of an amino acid other than aspartic acid, an organic acid, and salts of the amino acid other than aspartic acid and the organic acid, a content of the impurity being 0.02% by mass or more and 1.1% by mass or less. Also provided is a method for producing polysuccinimide, the method including performing a polymerization reaction of the aspartic acid using the aspartic acid composition. Also provided is a polysuccinimide composition produced by the method for producing polysuccinimide.

Provided herein is a method for producing polyaspartic acid under reflux cooling. Further provided herein are compositions including polyaspartic acid obtainable through the method. Also provided herein is a use of polyaspartic acids obtainable through the method in dishwashing agents, detergents, and cleaning agents.

There is provided a novel polymer including a repeating unit expressed as a following formula 1: ##STR00001## where each of R.sub.1 and R.sub.2 independently represents an alkylene group with 2 to 6 carbon atoms, and each of n and m independently represents 10 to 10,000.

The present invention provides a bio-inspired polymer compound, and a bio-adhesive having the same, and more particularly, to a bio-inspired polymer compound having biocompatibility and high adhesion ability, and a bio-adhesive comprising the same, wherein as the bio-inspired polymer compound absorbs water, the bio-inspired polymer compound becomes viscous in a swollen state, wherein the bio-inspired polymer compound has repeating units, a unit expressed by Chemical Formula 1 and a unit represented by Chemical Formula 2.