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Acrylic resin film and manufacturing method thereof

An acrylic and resin film technology, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve problems such as whitening, achieve the effects of less residue, excellent heat shrinkage resistance, and heat suppression

Active Publication Date: 2021-11-09
KURARAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the acrylic resin film is in direct contact with warm water (about 80°C), whitening may occur

Method used

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  • Acrylic resin film and manufacturing method thereof
  • Acrylic resin film and manufacturing method thereof
  • Acrylic resin film and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0150] A monomer mixture was prepared by charging 92 parts of refined MMA and 8 parts of MA into an autoclave with a stirrer and a collection tube. Add 0.006 parts of polymerization initiator (2,2'-azobis(2-methylpropionitrile), hydrogen abstraction ability: 1%, 1 hour half-life temperature: 83°C) and 0.15 parts of nOM to the monomer mixture, so that This is dissolved to obtain a raw material liquid. Oxygen is driven out of the manufacturing apparatus using nitrogen.

[0151] The above-mentioned raw material liquid was supplied from the autoclave at a constant flow rate to a continuous flow tank reactor whose temperature was controlled at 140°C so that the average residence time was 120 minutes, and bulk polymerization was carried out at a polymerization conversion rate of 57% to obtain acrylic acid Department of resin [B1].

[0152] The liquid discharged from the above-mentioned tank reactor was heated to 240°C, and supplied at a constant flow rate to a twin-screw extruder ...

manufacture example 2

[0154] A monomer mixture was prepared by charging 94 parts of refined MMA and 6 parts of MA into an autoclave with a stirrer and a collection tube. Add 0.006 parts of polymerization initiator (2,2'-azobis(2-methylpropionitrile), hydrogen abstraction ability: 1%, 1 hour half-life temperature: 83°C) and 0.35 parts of nOM to the monomer mixture, so that This is dissolved to obtain a raw material liquid. Oxygen is driven out of the manufacturing apparatus using nitrogen.

[0155] The above-mentioned raw material liquid was supplied from the autoclave at a constant flow rate to a continuous flow tank reactor whose temperature was controlled at 140°C so that the average residence time was 120 minutes, and bulk polymerization was carried out at a polymerization conversion rate of 57% to obtain acrylic acid Department of resin [B2].

[0156] The liquid discharged from the above-mentioned tank reactor was heated to 240°C, and supplied at a constant flow rate to a twin-screw extruder ...

Embodiment 1

[0158] (Process 1)

[0159] Put 150 parts of ion-exchanged water, 1.3 parts of sodium dodecylbenzenesulfonate and 0.05 parts of sodium carbonate into a reaction vessel equipped with a stirrer, a thermometer, a nitrogen gas introduction part, a monomer introduction pipe, and a reflux condenser. Substitution is sufficient to form a state where there is substantially no influence of oxygen. Then, the temperature in the reaction container was set to 80°C. 0.015 parts of potassium persulfate was put into the reaction container, and stirred for 5 minutes. Next, a monomer mixture consisting of 4 parts of MMA, 4 parts of nBA and 0.02 part of ALMA was continuously added dropwise over 20 minutes to carry out emulsion polymerization. After completion of the dropwise addition, the mixture was further stirred for 30 minutes to carry out emulsion polymerization so that the conversion rate became 98% or more, and a latex containing the polymer (a) was obtained.

[0160] 0.030 parts of pot...

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Abstract

The latex containing the multilayer structure acrylic polymer is obtained by emulsion polymerization, the latex containing the multilayer structure acrylic polymer is coagulated to obtain a slurry, the slurry is washed and dehydrated, and the dehydrated slurry is dried to obtain a multilayer structure An acrylic polymer, the mixture of 0-35% by mass of acrylic resin and 65-100% by mass of acrylic polymer with multilayer structure is melted and extruded, and the acrylic acid containing multilayer structure is obtained by implementing the method comprising the above steps. A resin made of a polymer, with an acid value of acetone-insoluble components of 0.018 mmol / g or less, an acid value of acetone-soluble components of 0.012 mmol / g or less, a glass transition temperature of 80°C or higher, and a thickness of 5 to 300 μm membrane.

Description

technical field [0001] The present invention relates to a resin film and a method for producing the same. More specifically, the present invention relates to a resin film excellent in transparency, high temperature water (80°C) whitening resistance, boiling water (100°C) whitening resistance, stress whitening resistance, film forming property, and heat shrinkage resistance, and a method for producing the same . Background technique [0002] Since the acrylic resin film is excellent in transparency, designability, weather resistance, etc., it is known to be used as a film raw material for an outermost layer of a wall material (for example, refer to Patent Document 1, etc.). Wall materials used in garages, bathrooms, toilets, lavatories, etc. have many opportunities to come into contact with warm water. However, when the acrylic resin film directly contacts warm water (about 80° C.), whitening may occur. [0003] As an improved resin film realizing warm water whitening resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18B32B27/30C08F265/06C08L33/06C08L51/00
CPCC08J5/18C08F265/06C08F220/14C08L51/003C08F285/00C08J2351/00C08J2433/12C08F2/22B32B27/22B32B2307/412B32B27/306B32B2250/02B32B27/308B32B27/302B32B2307/732B32B2307/738B32B2307/70B32B27/18B32B27/365B32B2307/736B32B27/304B32B27/08B32B2250/24B32B27/20C08K5/005C08L33/12C08K5/3475C08F220/1804C08F220/40C08F6/16C08F220/18C08L33/06B29B11/10B29C48/08B32B27/32B29C48/0018B29C48/04C08J2333/12C08J2409/10B29C48/022B29C48/21B29B9/06B29B13/06B29K2033/12B29L2007/008B29L2009/00B32B2250/03B32B2250/246B32B2270/00
Inventor 新村卓郎山下竹友中原淳裕藤井就明松井知之
Owner KURARAY CO LTD
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