US 2022/0157484 A1Published application

Polyurethane, polyurethane production method, conductive paste composition, conductive wire, and method for producing conductive wire

AssigneeShin-Etsu Chemical Co., Ltd.

InventorsShiori NONAKA, Koji HASEGAWA, Osamu WATANABE, Jun HATAKEYAMA

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Abstract

A polyurethane contains a weakly acidic functional group having a pKa of 5 to 11. Thus, the present invention provides: a conductive paste composition for forming a stretchable conductive wire which varies slightly in electric conductivity at the time of elongation and shrinkage; and a polyurethane for providing the composition.

Claims19

Dependent claims

A polyurethane comprising a weakly acidic functional group having a pKa of 5 to 11.

Dependencies are inferred from the claim text.

Facts

Application: 17/518,453Filed 3 Nov 2021
Priority: JP 2020-18981513 Nov 2020
Published: 19 May 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

C08G 18/42
High-molecular-weight compounds: polycondensates having carboxylic or carbonic ester groups in the main chain
H01B 1/12
Mainly consisting of other non-metallic substances: organic substances
C08G 18/0852
In the presence of solvents for the polymers: the solvents being organic
C08G 18/10
Processes: prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Family

US 12,131,836 B2Related patent
US 2022/0157484 A1This patent

From the US filing history. Foreign family members aren’t listed.

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