JP2019156866A5 - - Google Patents
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- JP2019156866A5 JP2019156866A5 JP2018040483A JP2018040483A JP2019156866A5 JP 2019156866 A5 JP2019156866 A5 JP 2019156866A5 JP 2018040483 A JP2018040483 A JP 2018040483A JP 2018040483 A JP2018040483 A JP 2018040483A JP 2019156866 A5 JP2019156866 A5 JP 2019156866A5
- Authority
- JP
- Japan
- Prior art keywords
- acrylic
- tackifier
- sensitive adhesive
- range
- mass
- 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.)
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 13
- 239000004925 Acrylic resin Substances 0.000 claims description 12
- 229920000178 Acrylic resin Polymers 0.000 claims description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- 239000003522 acrylic cement Substances 0.000 claims description 4
- 238000005227 gel permeation chromatography Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- OGMSGZZPTQNTIK-UHFFFAOYSA-N 1-methyl-2-prop-1-en-2-ylbenzene Chemical compound CC(=C)C1=CC=CC=C1C OGMSGZZPTQNTIK-UHFFFAOYSA-N 0.000 claims description 2
- 150000007824 aliphatic compounds Chemical class 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000004432 carbon atoms Chemical group C* 0.000 claims description 2
- 239000003431 cross linking reagent Substances 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Description
本発明者らは、鋭意検討した結果、以下の構成により上記課題を解決しうることを見出した。すなわち本発明は以下の［１］〜［５］に関する。
［１］アクリル樹脂（Ａ）と、粘着付与剤（Ｂ）を含有し、前記アクリル樹脂（Ａ）および前記粘着付与剤（Ｂ）の含有量の合計を１００質量部としたときに、前記アクリル樹脂（Ａ）を５０〜９９．５質量部、前記粘着付与剤（Ｂ）を０．５〜５０質量部含み、かつ、前記アクリル樹脂（Ａ）が、下記（Ａ−１）および（Ａ−２）を満たし、かつ、前記粘着付与剤（Ｂ）が、下記（Ｂ−１）〜（Ｂ−４）を満たす、アクリル粘着剤組成物。
（Ａ−１）炭素数が１から１２のアルキル基を有する（メタ）アクリレートと、水酸基を含有する（メタ）アクリレートを含むモノマーを反応させて得られる。
（Ａ−２）示差走査熱量計（ＤＳＣ）で測定したガラス転移温度（Ｔｇ）が−８０〜０℃の範囲にある。
（Ｂ−１）ゲルパーミエーションクロマトグラフィー（ＧＰＣ）で測定した数平均分子量（Ｍｎ）が３００〜１５００の範囲にある。
（Ｂ−２）ＪＩＳ Ｋ２２０７に準拠して測定される軟化点が３０〜１８０℃の範囲にある。
（Ｂ−３）示差走査熱量計（ＤＳＣ）で測定したガラス転移温度（Ｔｇ）が０〜１００℃の範囲にある。
（Ｂ−４）イソプロペニルトルエンに由来する構造単位を２０モル％以上含有する。
［２］前記粘着付与剤（Ｂ）が、下記（Ｂ−５）を満たす、［１］に記載のアクリル粘着剤組成物。
（Ｂ−５）不飽和脂肪族化合物に由来する構造単位を１〜６０モル％の範囲で含有する。
［３］架橋剤（Ｃ）を含有する、［１］または［２］に記載のアクリル粘着剤組成物。
［４］［１］〜［３］のいずれか一つに記載のアクリル粘着剤組成物を含むアクリル粘着性加工品。
［５］テープ、ラベル、シートあるいは両面テープである、［４］に記載のアクリル粘着性加工品。
As a result of diligent studies, the present inventors have found that the above problems can be solved by the following configurations. That is, the present invention relates to the following [1] to [5].
[1] When the acrylic resin (A) and the tackifier (B) are contained and the total content of the acrylic resin (A) and the tackifier (B) is 100 parts by mass, the acrylic The resin (A) is contained in an amount of 50 to 99.5 parts by mass, the tackifier (B) is contained in an amount of 0.5 to 50 parts by mass, and the acrylic resin (A) is contained in the following (A-1) and (A-). An acrylic pressure-sensitive adhesive composition that satisfies 2) and the pressure-sensitive adhesive (B) satisfies the following (B-1) to (B-4).
(A-1) It is obtained by reacting a (meth) acrylate having an alkyl group having 1 to 12 carbon atoms with a monomer containing a (meth) acrylate containing a hydroxyl group.
(A-2) The glass transition temperature (Tg) measured by a differential scanning calorimeter (DSC) is in the range of −80 to 0 ° C.
(B-1) The number average molecular weight (Mn) measured by gel permeation chromatography (GPC) is in the range of 300 to 1500.
(B-2) The softening point measured according to JIS K2207 is in the range of 30 to 180 ° C.
(B-3) The glass transition temperature (Tg) measured by a differential scanning calorimeter (DSC) is in the range of 0 to 100 ° C.
(B-4) Contains 20 mol% or more of structural units derived from isopropenyl toluene.
[2] The acrylic pressure-sensitive adhesive composition according to [1], wherein the pressure-sensitive adhesive (B) satisfies the following (B-5).
(B-5) Contains structural units derived from unsaturated aliphatic compounds in the range of 1 to 60 mol%.
[3] The acrylic pressure-sensitive adhesive composition according to [1] or [2], which contains a cross-linking agent (C).
[4] An acrylic pressure-sensitive processed product containing the acrylic pressure-sensitive adhesive composition according to any one of [1] to [3].
[5] The acrylic adhesive processed product according to [4], which is a tape, label, sheet or double-sided tape.
＜アクリル粘着剤組成物＞
アクリル樹脂（Ａ）および粘着付与剤（Ｂ）の含有量の合計を１００質量部としたときに、前記アクリル樹脂（Ａ）を５０〜９９．５質量部、好ましくは７０〜９８質量部含み、より好ましくは８０〜９５質量部含み、粘着付与剤（Ｂ）を０．５〜５０質量部含み、好ましくは２〜３０質量部含み、より好ましくは５〜２０質量部含む。粘着付与剤（Ｂ）の含有量が上記下限値以上であることで、得られる組成物の粘着力に優れ、粘着付与剤（Ｂ）の含有量が上記上限値以下であることで、透明性において好ましい。
<Acrylic adhesive composition>
When the total content of the acrylic resin (A) and the tackifier (B) is 100 parts by mass, the acrylic resin (A) is contained in an amount of 50 to 99.5 parts by mass, preferably 70 to 98 parts by mass. More preferably 80 to 95 parts by mass, 0.5 to 50 parts by mass of the tackifier (B), preferably 2 to 30 parts by mass, and more preferably 5 to 20 parts by mass. When the content of the tackifier (B) is at least the above lower limit, the adhesive strength of the obtained composition is excellent, and when the content of the tackifier (B) is at least the above upper limit, transparency is obtained. Is preferable.
＜粘着付与剤（Ｂ）＞
粘着付与剤（Ｂ）は下記要件（Ｂ−１）〜（Ｂ−４）を満たす。
<Adhesive imparting agent (B)>
The tackifier (B) satisfies the following requirements (B-1) to (B-4).
粘着付与剤（Ｂ）は好ましくはさらに下記要件（Ｂ−５）を満たす。 The tackifier (B) preferably further satisfies the following requirement (B-5).
＜アクリル粘着剤組成物の作製方法＞
上記アクリル粘着剤組成物の製造方法は特には限定されず、各種公知の方法で配合される。上記アクリル粘着剤組成物は、アクリル樹脂（Ａ）と、粘着付与剤（Ｂ）を含有し、前記アクリル樹脂（Ａ）および前記粘着付与剤（Ｂ）の含有量の合計を１００質量部としたときに、前記アクリル樹脂（Ａ）を５０〜９９．５質量部、前記粘着付与剤（Ｂ）を０．５〜５０質量部の割合で配合される。好ましくは２〜３０質量部含み、より好ましくは５〜２０質量部含む。粘着付与剤（Ｂ）の含有量が上記下限値以上であることで、得られる組成物の粘着力に優れ、粘着付与剤（Ｂ）の含有量が上記上限値以下であることで、透明性において好ましい。
<Method of producing acrylic pressure-sensitive adhesive composition>
The method for producing the acrylic pressure-sensitive adhesive composition is not particularly limited, and various known methods are used for blending. The acrylic pressure-sensitive adhesive composition contains an acrylic resin (A) and a pressure-sensitive adhesive (B), and the total content of the acrylic resin (A) and the pressure-sensitive adhesive (B) is 100 parts by mass. Occasionally, the acrylic resin (A) is blended in a proportion of 50 to 99.5 parts by mass, and the tackifier (B) is blended in a proportion of 0.5 to 50 parts by mass. It preferably contains 2 to 30 parts by mass, and more preferably 5 to 20 parts by mass. When the content of the tackifier (B) is at least the above lower limit, the adhesive strength of the obtained composition is excellent, and when the content of the tackifier (B) is at least the above upper limit, transparency is obtained. Is preferable.
粘着付与剤（Ｂ）に該当しない粘着付与剤であるＢ５〜Ｂ７として、以下の粘着付与剤を使用した。
Ｂ５：荒川化学工業株式会社製ＫＥ−１００（ロジン系粘着付与剤）
Ｂ６：荒川化学工業株式会社製Ｄ−１３５（ロジン系粘着付与剤）
Ｂ７：荒川化学工業株式会社製Ｐ−１００（水添石油樹脂）
The following tackifiers were used as the tackifiers B5 to B7, which do not fall under the tackifier (B).
B5: KE-100 (rosin-based tackifier) manufactured by Arakawa Chemical Industry Co., Ltd.
B6: D-135 manufactured by Arakawa Chemical Industry Co., Ltd. (rosin-based tackifier)
B7: P-100 (hydrogenated petroleum resin) manufactured by Arakawa Chemical Industry Co., Ltd.
Claims (5)
（Ａ−１）炭素数が１から１２のアルキル基を有する（メタ）アクリレートと、水酸基を含有する（メタ）アクリレートを含むモノマーを反応させて得られる。
（Ａ−２）示差走査熱量計（ＤＳＣ）で測定したガラス転移温度（Ｔｇ）が−８０〜０℃の範囲にある。
（Ｂ−１）ゲルパーミエーションクロマトグラフィー（ＧＰＣ）で測定した数平均分子量（Ｍｎ）が３００〜１５００の範囲にある。
（Ｂ−２）ＪＩＳ Ｋ２２０７に準拠して測定される軟化点が３０〜１８０℃の範囲にある。
（Ｂ−３）示差走査熱量計（ＤＳＣ）で測定したガラス転移温度（Ｔｇ）が０〜１００℃の範囲にある。
（Ｂ−４）イソプロペニルトルエンに由来する構造単位を２０モル％以上含有する。 When the acrylic resin (A) and the tackifier (B) are contained and the total content of the acrylic resin (A) and the tackifier (B) is 100 parts by mass, the acrylic resin (A) is contained. ) Is contained in an amount of 50 to 99.5 parts by mass, the tackifier (B) is contained in an amount of 0.5 to 50 parts by mass, and the acrylic resin (A) contains the following (A-1) and (A-2). filled, and the tackifier (B) satisfies the following (B-1) ~ (B -4), acrylic pressure-sensitive adhesive composition.
(A-1) It is obtained by reacting a (meth) acrylate having an alkyl group having 1 to 12 carbon atoms with a monomer containing a (meth) acrylate containing a hydroxyl group.
(A-2) The glass transition temperature (Tg) measured by a differential scanning calorimeter (DSC) is in the range of −80 to 0 ° C.
(B-1) The number average molecular weight (Mn) measured by gel permeation chromatography (GPC) is in the range of 300 to 1500.
(B-2) The softening point measured according to JIS K2207 is in the range of 30 to 180 ° C.
(B-3) The glass transition temperature (Tg) measured by a differential scanning calorimeter (DSC) is in the range of 0 to 100 ° C.
(B-4) Contains 20 mol% or more of structural units derived from isopropenyl toluene.
（Ｂ−５）不飽和脂肪族化合物に由来する構造単位を１〜６０モル％の範囲で含有する。 The acrylic pressure-sensitive adhesive composition according to claim 1, wherein the pressure-sensitive adhesive (B) further satisfies the following (B-5).
(B-5) Contains structural units derived from unsaturated aliphatic compounds in the range of 1 to 60 mol%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018040483A JP7105581B2 (en) | 2018-03-07 | 2018-03-07 | Acrylic adhesive composition and acrylic adhesive processed product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018040483A JP7105581B2 (en) | 2018-03-07 | 2018-03-07 | Acrylic adhesive composition and acrylic adhesive processed product |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019156866A JP2019156866A (en) | 2019-09-19 |
| JP2019156866A5 true JP2019156866A5 (en) | 2021-02-25 |
| JP7105581B2 JP7105581B2 (en) | 2022-07-25 |
Family
ID=67994525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018040483A Active JP7105581B2 (en) | 2018-03-07 | 2018-03-07 | Acrylic adhesive composition and acrylic adhesive processed product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7105581B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0834965A (en) * | 1994-07-21 | 1996-02-06 | Sekisui Chem Co Ltd | Tacky agent composition and tacky processed article |
| JP3904376B2 (en) | 2000-07-07 | 2007-04-11 | テルモ株式会社 | Blood separation agent and blood separation tube |
| JP2006096957A (en) | 2004-09-30 | 2006-04-13 | Nippon Shokubai Co Ltd | Adhesive composition |
-
2018
- 2018-03-07 JP JP2018040483A patent/JP7105581B2/en active Active
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