C08K5/28

UV CROSSLINKING OF PVDF-BASED POLYMERS FOR GATE DIELECTRIC INSULATORS OF ORGANIC THIN-FILM TRANSISTORS
20210226142 · 2021-07-22 ·

A method includes preparing a mixture having an organic solvent, a fluorine-containing polymer, at least one organic base, and a crosslinker component; depositing the mixture over a substrate to form a first layer; and crosslinking the first layer by light treatment to form a crosslinked gate dielectric layer, such that the fluorine-containing polymer is at least one of homopolymers of vinylidene fluoride or copolymers of vinylidene fluoride with fluorine-containing ethylenic monomers. A transistor includes a crosslinked gate dielectric layer disposed over a substrate; an organic semiconductor layer disposed over the substrate and being in direct contact with the crosslinked gate dielectric layer; a source and a drain in contact with the organic semiconductor layer and defining the ends of a channel through the organic semiconductor layer; and a gate superposed with the channel, such that the crosslinked gate dielectric layer separates the gate from the organic semiconductor layer.

Photosensitive resin composition and cured film prepared therefrom

The present invention relates to a photosensitive resin composition and to a cured film formed therefrom, wherein the photosensitive resin composition can improve the sensitivity by using an alcoholic solvent, along with a siloxane polymer and a quinone diazide compound conventionally used, which enhances the solubility in a developer through an interaction between the alcohol and the diazonaphthoquinone (DNQ) group in the quinone diazide compound, as well as can form a cure film having excellent film retention rate even after post-bake.

Photosensitive resin composition and cured film prepared therefrom

The present invention relates to a photosensitive resin composition and to a cured film formed therefrom, wherein the photosensitive resin composition can improve the sensitivity by using an alcoholic solvent, along with a siloxane polymer and a quinone diazide compound conventionally used, which enhances the solubility in a developer through an interaction between the alcohol and the diazonaphthoquinone (DNQ) group in the quinone diazide compound, as well as can form a cure film having excellent film retention rate even after post-bake.

Fluoroelastomer composition

The invention pertains to a composition based on a fluoroelastomer comprising nitrile or carboxylate-type cure sites and including a curing agent and a Br-containing marker having reactivity towards the said cure-sites, which can be cured so as to deliver cured parts maintaining chemically bound bromine atoms; this material, when submitted to wear/damage would hence release Br-containing contaminants, which can easily spotted via notably an on-line mass spectrometer, so as to monitor and anticipate critical failures of sealing materials based there upon.

Fluoroelastomer composition

The invention pertains to a composition based on a fluoroelastomer comprising nitrile or carboxylate-type cure sites and including a curing agent and a Br-containing marker having reactivity towards the said cure-sites, which can be cured so as to deliver cured parts maintaining chemically bound bromine atoms; this material, when submitted to wear/damage would hence release Br-containing contaminants, which can easily spotted via notably an on-line mass spectrometer, so as to monitor and anticipate critical failures of sealing materials based there upon.

Removable water-based pressure-sensitive adhesive composition and removable pressure-sensitive adhesive sheet

The present application provides a re-releasable aqueous pressure-sensitive adhesive composition containing: as a main component, an emulsion [A] of a (meth)acrylic acid-based ester copolymer, an emulsion [B] of a (meth)acrylic acid-based ester copolymer, and a crosslinker [C]. The emulsion [A] contains a constituent unit that has a carboxy group or a hydroxy group and reacts with a crosslinker. The emulsion [B] is included in the composition in an amount of 0.6 parts by mass or more in terms of a solid content based on 100 parts by mass of a solid content of the emulsion [A] and functions as a crosslinking assistant. The emulsion [B] has a peculiar structure dissolving in water upon neutralization and is unmeasurable in a particle diameter distribution analysis at pH from 6.5 to 7.5. The crosslinker [C] is a hydrazide-based compound that is soluble or dispersible in water.

Removable water-based pressure-sensitive adhesive composition and removable pressure-sensitive adhesive sheet

The present application provides a re-releasable aqueous pressure-sensitive adhesive composition containing: as a main component, an emulsion [A] of a (meth)acrylic acid-based ester copolymer, an emulsion [B] of a (meth)acrylic acid-based ester copolymer, and a crosslinker [C]. The emulsion [A] contains a constituent unit that has a carboxy group or a hydroxy group and reacts with a crosslinker. The emulsion [B] is included in the composition in an amount of 0.6 parts by mass or more in terms of a solid content based on 100 parts by mass of a solid content of the emulsion [A] and functions as a crosslinking assistant. The emulsion [B] has a peculiar structure dissolving in water upon neutralization and is unmeasurable in a particle diameter distribution analysis at pH from 6.5 to 7.5. The crosslinker [C] is a hydrazide-based compound that is soluble or dispersible in water.

Removable water-based pressure-sensitive adhesive composition and removable pressure-sensitive adhesive sheet

The present application provides a re-releasable aqueous pressure-sensitive adhesive composition containing: as a main component, an emulsion [A] of a (meth)acrylic acid-based ester copolymer, an emulsion [B] of a (meth)acrylic acid-based ester copolymer, and a crosslinker [C]. The emulsion [A] contains a constituent unit that has a carboxy group or a hydroxy group and reacts with a crosslinker. The emulsion [B] is included in the composition in an amount of 0.6 parts by mass or more in terms of a solid content based on 100 parts by mass of a solid content of the emulsion [A] and functions as a crosslinking assistant. The emulsion [B] has a peculiar structure dissolving in water upon neutralization and is unmeasurable in a particle diameter distribution analysis at pH from 6.5 to 7.5. The crosslinker [C] is a hydrazide-based compound that is soluble or dispersible in water.

Coating compositions and elastic barrier coatings formed therefrom

A coating composition that includes: (a) core-shell particles having a polymeric core at least partially encapsulated by a polymeric shell; (b) an ethylenically unsaturated rubber polymer; and (c) an adhesion promoter including at least one polymer that is different from (a) and (b). The polymeric shell of (a) includes: (i) a barrier segment having aromatic groups; and urethane linkages, urea linkages, or a combination thereof; and (ii) an elastomeric segment that is different from (i), in which the polymeric shell is covalently bonded to at least a portion of the polymeric core. Further, the ethylenically unsaturated rubber polymer is: (i) a polymeric particle dispersed in an aqueous medium that is different from (a); or (ii) covalently bonded to the shell of the core-shell particles of (a) and forms at least a portion of the polymeric core.

STAR-SHAPED AND TRIBLOCK POLYMERS WITH ENHANCED CROSSLINKABILITY

The present invention provides compositions comprising a) at least one polymer consisting of one polymerblock A and at least two polymerblocks B, wherein each polymerblock B is attached to the polymerblock A. and wherein at least 60 mol % of the monomer units of polymerblock B are selected from the group consisting of Formulae (1A), (1B), (1C), (1D), (1E), (1F) and 1G, 1H and 1I wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are independently and at each occurrence H or C.sub.1-10-alkyl, and b) at least one crosslinking agent carrying at least two azide groups, as well as to layers formed from these compositions, electronic devices comprising these layers and to specific polymers encompassed by the polymers of the composition.

##STR00001##