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Polymer gel structure and method for producing same

A gel structure, polymer technology, used in chemical instruments and methods, other household appliances, synthetic resin layered products, etc., can solve problems such as inability to maintain lubricity

Inactive Publication Date: 2010-07-28
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such systems cannot maintain their lubricity because water-soluble polymers tend to migrate off the surface or dissolve in water

Method used

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  • Polymer gel structure and method for producing same
  • Polymer gel structure and method for producing same
  • Polymer gel structure and method for producing same

Examples

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example

[0066] An understanding of various aspects of the invention can be gained by illustrating the examples provided below, although the invention is not limited thereby.

example 1

[0067] Example 1: Preparation of polymer gel structures

[0068] Preparation of the first polymer component :

[0069] By mixing 10 g of acrylic acid (AAc, Wako Pure Chemical Industries, Ltd., Osaka, Japan), 20 g of distilled water, 0.4 g of NK Ester A-400 (Shin Nakamura Chemical Co., Ltd., Fukui, Japan) and 0.014 g of IRGACURE 2959 (Basel, Switzerland) A trade name of Ciba Specialty Chemicals Co., Ltd.) to prepare an aqueous solution of a UV-curable monomer (ie, the first monomer solution or the first solution). NK-Ester A-400 refers to the diacrylate ester of polyethylene glycol having an average molecular weight of about 400. IRGACURE 2959 refers to the photoinitiator 1-[4-(2-hydroxyethoxy)-phenyl]-2-hydroxy-2-methyl-1-propan-1-one for UV curing. Nitrogen (N 2 ) to sweep the first solution, and then apply it to the film-forming tool.

[0070] The film-forming tool is a pyramidal die made of polypropylene. The pyramid shape in the film-forming tool had a length of 1...

example 2

[0074] Example 2: Add polyethylene glycol

[0075] Preparation of the first polymer component :

[0076] By mixing 1.8 grams of 2-acrylamido-2-methylpropanesulfonic acid (AMPS, Toagosei Co., Ltd., Tokyo, Japan, Toagosei Co., Ltd.), 10.8 grams of distilled water, and 0.088 grams of N,N-methylenebisacrylamide ( MBAA, Wako Pure Chemical Industries, Ltd., Osaka, Japan) and 0.014 g of IRGACURE 2959 (trade name of Ciba Specialty Chemicals, Basel, Switzerland) were used to prepare an aqueous solution of UV-curable monomers. To increase the viscosity of the aqueous solution, 0.4 g of polyethylene glycol (PEG, average molecular weight = 500,000, Wako Pure Chemical Industries, Ltd., Osaka, Japan) was also added. use N 2 The second solution is purged with gas. The second solution was then coated onto a film forming tool, laminated to PET film, and UV treated as described in Example 1. The first polymer component was then removed from the film-forming tool, resulting in a first la...

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Abstract

A polymer gel structure that includes a first layer having at least one non-planar main surface, the first layer including a first polymer component; and a second layer formed on the main surface of the first layer, the second layer including a second polymer component, wherein the second polymer component at least partially penetrates the first layer forming an interpenetrating polymer network structure or a semi-interpenetrating polymer network structure between the first polymer component and the second polymer component.

Description

[0001] Cross references to related patent applications [0002] This application claims the benefit of the currently pending Japanese Patent Application No. 2007-219791 filed on August 27, 2007, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to a polymer gel structure and a preparation method thereof. Background technique [0004] Biocompatible polymer gels are known that have a low coefficient of friction (high lubricity) when immersed in a liquid, such as body fluid. However, the mechanical strength of such polymer gels is often not ideal. It is known to copolymerize a hydrophilic monomer with an appropriate amount of a hydrophobic monomer in order to reduce the water content, thereby increasing the mechanical strength, however the coefficient of friction of such polymer gels may be increased and thus the lubricity may be reduce. [0005] PCT Publication No. WO03 / 093337 discloses a met...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/00B32B27/26C08J3/075C08F2/44
CPCB32B27/08C08F2/44B32B1/08B32B2307/50B32B2551/00Y10T428/1393Y10T428/24521
Inventor 增田祥一诹访敏宏鸟海尚之
Owner 3M INNOVATIVE PROPERTIES CO
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