Described herein are depolymerized polystyrene resins derived from polystyrene source resins. The depolymerized polystyrene resins undergo a depolymerization in which chemical bonds are cleaved, producing depolymerized polystyrene resins of lower molecular weight. The polystyrene resins may be modified by chemical reaction with monomers, polymers, and oligomers, such as acrylates thereof. Also described are ink and coating compositions that include the depolymerized and modified polystyrene resins.

A glass plate coated with an impact protection film layer is made by coating an impact protection film layer onto a surface of the glass plate. The impact protection film layer is made of a phenyl-containing macromolecular polymer, which has a monomer carbon chain length of between C6 and C18. The coated glass plate is shock-cushioning and impact-proof, and is thereby protected against damage caused by impact from an external force.

A glass plate coated with an impact protection film layer is made by coating an impact protection film layer onto a surface of the glass plate. The impact protection film layer is made of a phenyl-containing macromolecular polymer, which has a monomer carbon chain length of between C6 and C18. The coated glass plate is shock-cushioning and impact-proof, and is thereby protected against damage caused by impact from an external force.

An article comprising a double-switching heater that comprises a double-switching PTC ink deposited on a flexible substrate to form one or more resistors. The double-switching PTC ink comprises a first resin and a second resin; the first resin provides a first PTC effect within a first temperature range (T1, T2); the second resin provides a second PTC effect within a second temperature range (T3, T4), where T3≥T2; the first resin has an NTC effect above the first temperature range; the second PTC effect is greater than the first PTC effect; and the second PTC effect overlaps with, and is greater than, the NTC effect of the first resin. The substrate can be either thermal polyurethane, nylon or a polyester blend.

An article comprising a double-switching heater that comprises a double-switching PTC ink deposited on a flexible substrate to form one or more resistors. The double-switching PTC ink comprises a first resin and a second resin; the first resin provides a first PTC effect within a first temperature range (T1, T2); the second resin provides a second PTC effect within a second temperature range (T3, T4), where T3≥T2; the first resin has an NTC effect above the first temperature range; the second PTC effect is greater than the first PTC effect; and the second PTC effect overlaps with, and is greater than, the NTC effect of the first resin. The substrate can be either thermal polyurethane, nylon or a polyester blend.

A 3-D printed device comprising one or more interconnect structures, the interconnect structures comprising a plurality of conductive particles and one or more diblock or triblock copolymers; the diblock or triblock copolymers having an A-B, A-B-A, or A-B-C block-type structure in which the A-blocks and C-blocks are an aromatic-based polymer or an acrylate-based polymer and the B-blocks are an aliphatic-based polymer. These 3-D printed devices may be formed using a method that comprises providing a conductive ink composition; applying the conductive ink composition to a substrate in a 3-D solvent cast printing process to form one or more interconnect structures; and drying the one or more interconnect structures formed from the conductive ink composition. The dried interconnect structures exhibit a conductivity equal to or greater than 1×10.sup.5 S/m without having to be subjected to any post-processing sintering treatment.

A 3-D printed device comprising one or more interconnect structures, the interconnect structures comprising a plurality of conductive particles and one or more diblock or triblock copolymers; the diblock or triblock copolymers having an A-B, A-B-A, or A-B-C block-type structure in which the A-blocks and C-blocks are an aromatic-based polymer or an acrylate-based polymer and the B-blocks are an aliphatic-based polymer. These 3-D printed devices may be formed using a method that comprises providing a conductive ink composition; applying the conductive ink composition to a substrate in a 3-D solvent cast printing process to form one or more interconnect structures; and drying the one or more interconnect structures formed from the conductive ink composition. The dried interconnect structures exhibit a conductivity equal to or greater than 1×10.sup.5 S/m without having to be subjected to any post-processing sintering treatment.

Disclosed herein is a liquid electrophotographic ink composition comprising a first resin comprising a copolymer of an alkylene monomer and a methacrylic acid monomer; a second resin comprising a copolymer of an alkylene monomer and from about 5 wt. % to about 11 wt. % of an acrylic acid monomer; and a colorant in an amount of at least 20 wt. % of the solids of the electrophotographic ink composition. Also disclosed herein is a method of producing a printed substrate from the liquid electrophotographic ink composition.

The present disclosure is directed to a carbogenic nanoparticle polymer inks including a conducting polymer, such as those made of CQD-PPy and/or R-GO-PPy, methods of making the inks, and moisture and VOC sensors made therefrom.

The present disclosure is directed to a carbogenic nanoparticle polymer inks including a conducting polymer, such as those made of CQD-PPy and/or R-GO-PPy, methods of making the inks, and moisture and VOC sensors made therefrom.