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Ionomer, method for producing same and molded article

An ion-crosslinking and polymer technology, applied in the field of ionomers, can solve the problems of insufficient scratch resistance and abrasion resistance, leakage of polyorganosiloxane and fatty acid amide, and lack of appearance, etc. Effects of good mechanical properties and abrasion resistance, excellent tensile strength at break and scratch resistance, good softness

Inactive Publication Date: 2008-01-09
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned olefin-based thermoplastic elastomers are still insufficient in scratch resistance and abrasion resistance, and have defects in leakage of polyorganosiloxane and fatty acid amide, and are lacking in appearance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0103] 100 parts by mass of copolymer (A) containing unsaturated dicarboxylic anhydride units, 0.7 parts by mass of metal compound particles (B-1), 2.4 parts by mass of activator (D-1), and 0.2 parts by mass of antioxidant (E) were respectively Add to a 10L double-arm pressurized kneader (manufactured by Moriyama Co.) heated to 230° C., knead at 40 rpm for 20 minutes (shear rate 200 s -1 ). Then, the obtained molten lump-like kneaded product was made into a pelletized ionomer using a Feeder Ruder (manufactured by Moriyama Co.) set at 180° C. and 40 rpm. The particles of the obtained ionomer were press-molded by an electric heating press molding machine (manufactured by Kansai Roll Co.), a mold temperature of 180° C., a pressure heating time of 10 minutes, and a pressure cooling time of 5 minutes to obtain a 12 cm × 12cm x 0.2cm molded sheet.

[0104] [Evaluation of ionomers]

[0105] For the obtained ionomer, the melt flow rate (MFR) under the conditions of a temperature of...

Embodiment 2

[0115] Make the content of the copolymer (A) containing the unsaturated dicarboxylic acid anhydride unit 50 parts by mass, and make the polymer compound (C-1) 50 parts by mass, and obtain ionic crosslinking in the same way as in Example 1 except that polymer composition. Furthermore, in the same manner as in Example 1, a molded sheet of the obtained ionomer composition was prepared and evaluated. The results are shown in Table 1. In Table 1, "ratio" represents the ratio of each component in parts by mass.

Embodiment 3

[0117] Make the content of the copolymer (A) containing the unsaturated dicarboxylic anhydride unit to be 50 parts by mass, then use 45 parts by mass of polymer compound (C-1), 5 parts by mass of polymer compound (C-2), in addition Outside, it carried out similarly to Example 1, and obtained the ionomer composition. Furthermore, in the same manner as in Example 1, a molded sheet of the obtained ionomer composition was prepared and evaluated.

[0118] The results are shown in Table 1.

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PUM

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Abstract

Disclosed is an ionomer which is obtained by reacting metal compound particles having an average particle diameter of not more than 1 [mu]m and a polymer having a structural unit derived from an unsaturated dicarboxylic acid anhydride. Such an ionomer has flexibility and molding workability similar to those of conventional olefin thermoplastic elastomers, while exhibiting good mechanical characteristics, oil resistance and abrasion resistance. In addition, such an ionomer is particularly excellent in tensile break strength and scratch resistance. Also disclosed are a method for producing such an ionomer and an molded article made of such an ionomer.

Description

technical field [0001] The present invention relates to an ionomer having excellent mechanical properties such as rubber elasticity, flexibility, and tensile strength at break, scratch resistance, abrasion resistance, molding processability, heat resistance, and weather resistance, and suitable as a thermoplastic elastomer , its preparation method and molded product. Background technique [0002] Known olefin-based thermoplastic elastomer compositions include, for example, those obtained by mixing an olefin-based resin and an olefin-based copolymer rubber, and those obtained by partially crosslinking an olefin-based resin and an olefin-based copolymer rubber with a crosslinking agent. Such an olefin-based thermoplastic elastomer composition is excellent in heat resistance, weather resistance, low temperature resistance, and moldability, and is a relatively low-cost material. Substitute materials for metal parts for the purpose, substitute materials for RIM polyurethane part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/44
CPCC08F8/44C08F22/04
Inventor 鼎健太郎田中实
Owner JSR CORPORATIOON
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