A medical elongated body including a tubular main body and a hub connected to the tubular main body. The medical elongated body includes a strain relief supported by a distal portion of the hub. The strain relief surrounds a predetermined range of the proximal portion of the tubular main body. The medical elongated body includes a hydrophilic lubricating coating layer and a temperature responsive lubricating coating layer on the outer surface of the tubular main body, the temperature responsive lubricating coating layer being proximal to the hydrophilic lubricating coating layer. The hydrophilic lubricating coating layer exhibits lubricating characteristics when wet. The temperature responsive lubricating coating layer exhibits hydrophilic characteristics and lubricating characteristics at a temperature lower than a critical temperature when wet and exhibits hydrophobic characteristics and non-lubricating characteristics at a temperature equal to or higher than the critical temperature when wet.

There is provided a method for the production of a packaging material comprising a substrate and a gas barrier layer based on polyvinyl alcohol (PVOH), said method comprising the steps of applying a coating composition of said PVOH dissolved in a first solvent onto said substrate to form a coating subjecting the coating to a first drying step to form a dried PVOH-based coating on said substrate, contacting the dried PVOH-based coating with a crosslinking solution comprising a crosslinking agent in a second solvent, to effect crosslinking of the PVOH-based coating, and subsequent to the contact with the crosslinking solution, subjecting the PVOH-based coating to a second drying step, forming the PVOH-based barrier layer on said substrate, with the proviso that if the crosslinking solution comprises PVOH, the amount of PVOH added by the crosslinking solution is less than 20% (by weight), such as less than 10% (by weight), of the amount of PVOH added by the coating composition.

There is provided a method for the production of a packaging material comprising a substrate and a gas barrier layer based on polyvinyl alcohol (PVOH), said method comprising the steps of applying a coating composition of said PVOH dissolved in a first solvent onto said substrate to form a coating subjecting the coating to a first drying step to form a dried PVOH-based coating on said substrate, contacting the dried PVOH-based coating with a crosslinking solution comprising a crosslinking agent in a second solvent, to effect crosslinking of the PVOH-based coating, and subsequent to the contact with the crosslinking solution, subjecting the PVOH-based coating to a second drying step, forming the PVOH-based barrier layer on said substrate, with the proviso that if the crosslinking solution comprises PVOH, the amount of PVOH added by the crosslinking solution is less than 20% (by weight), such as less than 10% (by weight), of the amount of PVOH added by the coating composition.

A polymer, an electrode plate, and a battery cell, battery, and electric apparatus related thereto are described. The polymer includes an ether polymer. The ether polymer is made into a sheet structure. The sheet structure undergoes dynamic frequency scanning testing at (Tm+20) C. to obtain an elastic modulus G-energy loss modulus G curve, where a slope of the elastic modulus G-energy loss modulus G curve is K, 1<K<, and Tm C. represents a melting temperature of the ether polymer. This application can improve the cycling performance and storage performance of the battery cell.

A polymer, an electrode plate, and a battery cell, battery, and electric apparatus related thereto are described. The polymer includes an ether polymer. The ether polymer is made into a sheet structure. The sheet structure undergoes dynamic frequency scanning testing at (Tm+20) C. to obtain an elastic modulus G-energy loss modulus G curve, where a slope of the elastic modulus G-energy loss modulus G curve is K, 1<K<, and Tm C. represents a melting temperature of the ether polymer. This application can improve the cycling performance and storage performance of the battery cell.

The present invention relates to denture adhesive compositions. The compositions comprise (a) carboxymethylcellulose, (b) a cross-linked polyacrylic acid homopolymer and (c) an alkyl vinyl ether-maleic acid copolymer or salt thereof. Advantageously, the compositions provide an immediate, strong and long-lasting hold.

The present invention relates to denture adhesive compositions. The compositions comprise (a) carboxymethylcellulose, (b) a cross-linked polyacrylic acid homopolymer and (c) an alkyl vinyl ether-maleic acid copolymer or salt thereof. Advantageously, the compositions provide an immediate, strong and long-lasting hold.