JP2021105123A5 - - Google Patents
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- JP2021105123A5 JP2021105123A5 JP2019237217A JP2019237217A JP2021105123A5 JP 2021105123 A5 JP2021105123 A5 JP 2021105123A5 JP 2019237217 A JP2019237217 A JP 2019237217A JP 2019237217 A JP2019237217 A JP 2019237217A JP 2021105123 A5 JP2021105123 A5 JP 2021105123A5
- Authority
- JP
- Japan
- Prior art keywords
- acrylic rubber
- weight
- rubber according
- drying
- acrylic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 229920000800 acrylic rubber Polymers 0.000 claims description 21
- 229920000058 polyacrylate Polymers 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 9
- 238000007720 emulsion polymerization reaction Methods 0.000 claims description 7
- -1 phosphate ester salt Chemical class 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000701 coagulant Substances 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims 5
- 229920001971 elastomer Polymers 0.000 claims 4
- 239000005060 rubber Substances 0.000 claims 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims 3
- 125000005396 acrylic acid ester group Chemical group 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 125000005397 methacrylic acid ester group Chemical group 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- 238000005406 washing Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 230000001112 coagulating effect Effects 0.000 claims 1
- 238000004132 cross linking Methods 0.000 claims 1
- 239000003431 cross linking reagent Substances 0.000 claims 1
- 230000001804 emulsifying effect Effects 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 230000005484 gravity Effects 0.000 claims 1
- 239000002685 polymerization catalyst Substances 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
Description
本発明のアクリルゴムにおいて、灰分量が１重量％以下であることが好ましい。
本発明のアクリルゴムにおいて、リン酸エステル塩又は硫酸エステル塩を乳化剤として使用し乳化重合したものであることが好ましい。
本発明のアクリルゴムにおいて、乳化重合した重合液をアルカリ金属塩又は周期表第２族金属塩を凝固剤として使用することにより凝固させ、乾燥したものであることが好ましい。
本発明のアクリルゴムにおいて、凝固後にスクリュー押出機を用いて乾燥されたものであることが好ましい。
本発明のアクリルゴムにおいて、前記スクリュー押出機を用いた乾燥が、実質的に水分を含まない状態で行われたものであることが好ましい。
本発明のアクリルゴムにおいて、前記スクリュー押出機を用いた乾燥が、減圧下で行われたものであることが好ましい。
本発明のアクリルゴムにおいて、前記スクリュー押出機を用いた乾燥後に、５０℃／ｈｒ以上の冷却速度で冷却されたものであることが好ましい。
The acrylic rubber of the present invention preferably has an ash content of 1% by weight or less.
The acrylic rubber of the present invention is preferably emulsion-polymerized using a phosphate ester salt or a sulfate ester salt as an emulsifier.
In the acrylic rubber of the present invention, it is preferable to coagulate the polymerization liquid obtained by emulsion polymerization by using an alkali metal salt or a metal salt of group 2 of the periodic table as a coagulant, and then dry it.
The acrylic rubber of the present invention is preferably dried using a screw extruder after coagulation.
In the acrylic rubber of the present invention, it is preferable that the drying using the screw extruder is carried out in a substantially water-free state.
In the acrylic rubber of the present invention, it is preferable that the drying using the screw extruder is carried out under reduced pressure.
The acrylic rubber of the present invention is preferably cooled at a cooling rate of 50° C./hr or more after drying using the screw extruder.
Claims (14)
得られた乳化重合液と凝固液を接触させて含水クラムを生成させる凝固工程と、
生成した含水クラムを洗浄する洗浄工程と、
洗浄した含水クラムをスクリュー型押出機を用いて含水量１重量％未満まで乾燥する乾燥工程と、
を含むアクリルゴムの製造方法。 acrylic acid ester (a), methacrylic acid ester (b), a reactive group-containing monomer (c), and, if necessary, a monomer component consisting of other copolymerizable monomers (d) an emulsion polymerization step of emulsifying with water and an emulsifier, followed by emulsion polymerization in the presence of a polymerization catalyst to obtain an emulsion polymerization liquid;
a coagulation step of contacting the obtained emulsion polymerization liquid and the coagulation liquid to generate water-containing crumbs;
a washing step for washing the produced hydrous crumbs;
a drying step of drying the washed wet crumbs to a moisture content of less than 1% by weight using a screw extruder;
A method for producing an acrylic rubber comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019237217A JP7447488B2 (en) | 2019-12-26 | 2019-12-26 | Acrylic rubber with excellent heat resistance and processability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019237217A JP7447488B2 (en) | 2019-12-26 | 2019-12-26 | Acrylic rubber with excellent heat resistance and processability |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2021105123A JP2021105123A (en) | 2021-07-26 |
| JP2021105123A5 true JP2021105123A5 (en) | 2022-12-19 |
| JP7447488B2 JP7447488B2 (en) | 2024-03-12 |
Family
ID=76919395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019237217A Active JP7447488B2 (en) | 2019-12-26 | 2019-12-26 | Acrylic rubber with excellent heat resistance and processability |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7447488B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023008482A1 (en) * | 2021-07-28 | 2023-02-02 | 株式会社大阪ソーダ | Thermoplastic material composition |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008214418A (en) | 2007-03-01 | 2008-09-18 | Nippon Zeon Co Ltd | Acrylic rubber, acrylic rubber composition, and acrylic rubber crosslinked product |
| CN109952327A (en) | 2016-11-30 | 2019-06-28 | 株式会社大阪曹达 | Acrylic copolymer and its cross-linking agent |
| CN110198971B (en) | 2017-01-27 | 2022-03-11 | 日本瑞翁株式会社 | Method for producing acrylic rubber |
| JPWO2018143101A1 (en) | 2017-01-31 | 2019-11-21 | 日本ゼオン株式会社 | Acrylic rubber, acrylic rubber composition, and crosslinked acrylic rubber |
| JP6683189B2 (en) | 2017-12-28 | 2020-04-15 | 日本ゼオン株式会社 | Acrylic rubber manufacturing method |
| JP2019194326A (en) | 2018-04-27 | 2019-11-07 | 日本ゼオン株式会社 | Production of acrylic rubber and obtained acrylic rubber |
| CN112368323B (en) | 2018-06-21 | 2023-05-12 | 三菱化学株式会社 | Acrylic matting resin film |
-
2019
- 2019-12-26 JP JP2019237217A patent/JP7447488B2/en active Active
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