Supercharge Your Innovation With Domain-Expert AI Agents!

Thermoplastic acrylic resin and method for producing same, and resin composition

An acrylic resin and thermoplastic technology, applied in the direction of single-component synthetic polymer rayon, textiles and papermaking, fiber chemical characteristics, etc., can solve the problems of high solvent recovery cost and high drainage load

Pending Publication Date: 2020-11-03
KANEKA CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of the wet spinning method, since the drainage load is high and the recovery cost of the solvent is high, in Patent Document 1, melt spinning of acrylic fibers has been studied.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thermoplastic acrylic resin and method for producing same, and resin composition
  • Thermoplastic acrylic resin and method for producing same, and resin composition
  • Thermoplastic acrylic resin and method for producing same, and resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0089] The present invention will be described in more detail below by way of examples. In addition, this invention is not limited to the following Example.

[0090] First, various measurement methods and evaluation methods will be described.

[0091] (1) Mass-average molecular weight and number-average molecular weight were measured and calculated by the GPC method using gel permeation chromatography ("HLC-8320GPC" manufactured by Tosoh Corporation).

[0092] (2) The average particle diameter is the particle diameter D50 at which the cumulative volume percentage is 50% by volume in the volume particle size distribution measured using a laser diffraction / scattering particle size distribution analyzer "Partica LA-950V2" manufactured by Horiba Corporation.

[0093] (3) The glass transition temperature of the acrylic resin is a value obtained by using a differential scanning calorimeter "DSC-6100" manufactured by Seiko Instruments Inc. to increase the temperature from -80°C to ...

manufacture example 1

[0105] 554 g of CuBr was charged in a 2 L separable flask equipped with a reflux tube and a stirrer, and the inside of the reaction container was replaced with nitrogen. Next, 73.8 mL of acetonitrile was added, the separable flask was placed in a 70° C. oil bath, and the contents were stirred for 30 minutes. Then, 132 g of n-butyl acrylate, 7.2 mL of methyl 2-bromopropionate, and 4.69 mL of pentamethyldiethylenetriamine were added to a separable flask to start the reaction. While heating and stirring at 70° C., n-butyl acrylate (528 g) was continuously added dropwise over 90 minutes, and further, it was heated and stirred at 70° C. for 80 minutes. The reaction mixture was diluted with toluene, passed through an activated alumina column, and then the volatile components were distilled off under reduced pressure to obtain single-terminal Br group poly(n-butyl acrylate).

[0106] Charge 800 mL of methanol into the flask, and cool to 0°C. Potassium tert-butoxide (130 g) was adde...

manufacture example 2

[0109] Except for using 2-methoxyethyl acrylate instead of n-butyl acrylate, and changing the feed amount of 2-bromopropionate methyl to 14.4 mL, a single-ended acryloyl polyacrylate was obtained in the same manner as in Production Example 1. (2-methoxyethyl acrylate). The number average molecular weight of the obtained single-end acryloyl poly(2-methoxyethyl acrylate) macromonomer was 6000, and the molecular weight distribution (mass average molecular weight / number average molecular weight) was 1.24.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Glass transition temperatureaaaaaaaaaa
The average particle sizeaaaaaaaaaa
Login to View More

Abstract

In at least one embodiment, the present invention relates to a thermoplastic acrylic resin which is a graft copolymer in which a stem polymer is an acrylic resin containing acrylonitrile and another ethylenically unsaturated monomer and a branch polymer is a polymer comprising an ethylenically unsaturated monomer, wherein acrylonitrile is contained in an amount of 35 to 84.5% by mass inclusive, the other ethylenically unsaturated monomer is contained in an amount of 15 to 64.5% by mass inclusive, and the polymer comprising an ethylenically unsaturated monomer is contained in an amount of 0.5 to 40% by mass inclusive. Provided are: a thermoplastic acrylic resin which is improved in melt processability without being deteriorated in heat resistance; a method for producing the thermoplastic acrylic resin; a thermoplastic acrylic resin composition; a molded article; an acrylic fiber; and a method for producing the acrylic fiber.

Description

technical field [0001] The present invention relates to a melt processable thermoplastic acrylic resin, a method for its production and a resin composition. Background technique [0002] Acrylic resins containing acrylonitrile as a polymerizable component are used in the production of molded articles for various purposes, such as plates and fibers, because of their excellent moldability. For example, acrylic fibers composed of acrylic resins copolymerized with acrylonitrile and vinyl halides and / or vinylidene halides (also called acrylic fibers) have been used in artificial hair, flame-retardant raw materials, and pile Cloth and other products. Acrylic resins obtained by copolymerizing acrylonitrile with vinyl halide and / or vinylidene halide decompose at a temperature lower than the softening temperature and decompose when melt-processed. Therefore, wet spinning is usually used for fiberization. However, in the case of the wet spinning method, since the drainage load is hi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08F265/08C08K5/41C08L51/06D01F6/40
CPCD01F6/40C08K5/0016C08K5/42C08K5/12C08K5/005C08K3/014C08K3/34C08K5/098C08K5/1515C08F290/046C08F285/00C08L51/003C08F120/18C08F220/281C08F2438/01C08F220/44C08F214/06C08F220/1802C08F220/1804C08F265/06C08K5/1575C08L2201/08C08L2203/12
Inventor 奥村壮太平井悠佑副岛敬正
Owner KANEKA CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com