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Modified thermoplastic resin

A thermoplastic resin and resin technology, applied in the field of modified thermoplastic resin, can solve the problems of difficulty in manufacturing, unknown use of resin modification, etc.

Active Publication Date: 2008-03-26
KANEKA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, resin modification using a polymer having two or more polymerizable functional groups is unknown
In particular, polymers having polymerizable carbon-carbon double bonds at both ends of vinyl-based polymers are difficult to manufacture, and therefore resin modification applications using them are unknown.

Method used

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  • Modified thermoplastic resin
  • Modified thermoplastic resin
  • Modified thermoplastic resin

Examples

Experimental program
Comparison scheme
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Embodiment

[0402] Hereinafter, specific examples and comparative examples of the present invention will be described, but the present invention is not limited to the following examples.

[0403] In addition, in the following examples, "number average molecular weight" and "molecular weight distribution (ratio of weight average molecular weight to number average molecular weight)" were calculated by the standard polystyrene conversion method using gel permeation chromatography (GPC). Here, a polystyrene crosslinked gel filled material (shodex GPC K-804; manufactured by Showa Denko Co., Ltd.) was used as a GPC column, and chloroform was used as a GPC solvent.

[0404] In the following examples, the "average number of terminal acryloyl groups" is "the number of acryloyl groups introduced per molecule of polymer", which is determined by 1 H-NMR analysis and the number average molecular weight obtained by GPC were calculated.

[0405] In addition, "parts" in the following examples represent ...

manufacture example 1

[0406] (Production Example 1) Polymerization and purification of acryloyl double-terminal poly(n-butyl acrylate)

[0407] It was carried out according to the method described in Production Example 2 and Example 2 of Japanese Patent Laid-Open No. 2004-203932. That is, under a nitrogen atmosphere, CuBr (4.2 parts), acrylonitrile (44.0 parts), n-butyl acrylate (100 parts), 2,5-dibromoadipic acid diethyl ester (8.8 parts), and stirred at 80°C. Pentamethyldiethylenetriamine (hereinafter, simply referred to as "triamine") (0.17 part) was added thereto, and polymerization was started. During the polymerization, n-butyl acrylate (400 parts) was continuously added dropwise, and triamine was further appropriately added, while heating and stirring to keep the temperature of the reaction solution at 80° C. to 90° C., thereby obtaining a bromine-based double-terminated polymer.

[0408] The resulting bromo-terminal polymer (100 parts) was dissolved in N,N-dimethylacetamide (100 parts), a...

Embodiment 1

[0410] Into a 6 L autoclave with a rotary stirrer, 2250 g of distilled water, 3.5 g of calcium orthophosphate, and 0.14 g of sodium α-olefin sulfonate were charged. Next, 6 g of benzoyl peroxide and 3.5 g of 1,1 - Di(tert-butylperoxy)cyclohexane, 4.5 g of 2,4-diphenyl-4-methyl-1-pentene, 22.5 g of coconut oil and charged in an autoclave. Next, the autoclave was heated up to a temperature of 85° C., and polymerized at the same temperature for 4 hours to obtain a bead-shaped polymer (2).

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PUM

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Abstract

Problems: Thermoplastic resins involve various problems such as enhancement of strength, imparting toughness, improvement of heat resistance and the like. In order to solve there problems, copolymerization with monomers or oligomers, and grafting have been carried out. As a method for solving the problems, graft polymerization with macromonomers was proposed, however, development of modification techniques for achieving more favorable performances, and resins produced thereby have been still desired. Means for Resolution: The present invention relates to a thermoplastic resin prepared by addition polymerization of an addition polymerizable monomer, the thermoplastic resin being modified by copolymerization of said addition polymerizable monomer with a vinyl polymer (I) that has one or more polymerizable carbon-carbon double bond-containing groups at two or more molecular ends each, and has a value of ratio (Mw / Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) being less than 1.8.

Description

technical field [0001] The present invention relates to modified thermoplastic resins with improved properties. Background technique [0002] A wide variety of thermoplastic resins that exhibit fluidity by heating have been developed and used in all fields of industry. Examples of thermoplastic resins include polyethylene (PE), polypropylene (PP), polystyrene (PS), acrylonitrile / styrene resin (AS), acrylonitrile / butadiene / styrene resin (ABS) ), methacrylic resin (PMMA), vinyl chloride (PVC), polyamide (PA), polyacetal (POM), ultra-high molecular weight polyethylene (UHPE), polybutylene terephthalate (PBT) , GF reinforced polyethylene terephthalate (GF-PET), polymethylpentene (TPX), polyphenylene sulfide (PPS), polyether ether ketone (PEEK), liquid crystal polymer ( LCP), polytetrafluoroethylene (PTFE), polyetherimide (PEI), polyarylate (PAR), polysulfone (PSF), polyethersulfone (PES), polyamideimide (PAI), etc. In addition, in recent years, thermoplastic elastomers have a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/04
CPCC08F2810/30C08F290/046C08F2438/01C08F8/14C08F2810/40C08F8/26C08F20/18
Inventor 中川佳树原田一
Owner KANEKA CORP
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