JPH02261877A - Self-adhesive composition for expanded polyethylene - Google Patents
Self-adhesive composition for expanded polyethyleneInfo
- Publication number
- JPH02261877A JPH02261877A JP1083317A JP8331789A JPH02261877A JP H02261877 A JPH02261877 A JP H02261877A JP 1083317 A JP1083317 A JP 1083317A JP 8331789 A JP8331789 A JP 8331789A JP H02261877 A JPH02261877 A JP H02261877A
- Authority
- JP
- Japan
- Prior art keywords
- meth
- adhesive composition
- weight
- ester resin
- rosin ester
- 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
Links
- -1 polyethylene Polymers 0.000 title claims abstract description 52
- 239000000203 mixture Substances 0.000 title claims abstract description 42
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 37
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 37
- 239000000853 adhesive Substances 0.000 title claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 32
- 229920005989 resin Polymers 0.000 claims abstract description 32
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 24
- 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 claims abstract description 24
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 24
- 150000002148 esters Chemical class 0.000 claims abstract description 21
- 229920006243 acrylic copolymer Polymers 0.000 claims abstract description 15
- 239000000178 monomer Substances 0.000 claims abstract description 12
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims description 30
- 239000004480 active ingredient Substances 0.000 claims description 8
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 abstract description 14
- 238000003851 corona treatment Methods 0.000 abstract description 5
- 238000013329 compounding Methods 0.000 abstract 1
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 1
- 229930195729 fatty acid Natural products 0.000 abstract 1
- 239000000194 fatty acid Substances 0.000 abstract 1
- 150000004665 fatty acids Chemical class 0.000 abstract 1
- 239000006260 foam Substances 0.000 description 11
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 9
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000012948 isocyanate Substances 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 3
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- KQNZLOUWXSAZGD-UHFFFAOYSA-N benzylperoxymethylbenzene Chemical compound C=1C=CC=CC=1COOCC1=CC=CC=C1 KQNZLOUWXSAZGD-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Chemical class 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000001541 aziridines Chemical class 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、発泡ポリエチレン用粘着剤組成物に関し、詳
しくは、発泡ポリエチレン表面にコロナ放電処理を行な
わずして、耐熱性及び耐寒性にすぐれる接着を達成する
粘着剤組成物に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a pressure-sensitive adhesive composition for foamed polyethylene, and more specifically, to an adhesive composition for foamed polyethylene that immediately exhibits heat resistance and cold resistance without corona discharge treatment on the surface of the foamed polyethylene. The present invention relates to a pressure-sensitive adhesive composition that achieves the desired adhesion.
（従来の技術）
建材、家電製品、自動車用緩衝材、隙間テープ等として
、その表面を粘着剤で処理した発泡ポリエチレン製品が
用いられている。このように、発泡ポリエチレン表面を
粘着加工するには、粘着剤の発泡ポリエチレンに対する
密着性を高めるために、通常、発泡ポリエチレン表面は
、予めコロナ放電処理されている。粘着剤としては、耐
光性、耐久性、耐熱性、耐寒性等のバランスの点から、
従来、アクリル樹脂を主体とする溶剤型粘着剤が用いら
れており、この場合、粘着剤には、特にその耐熱性を改
善するために、通常、硬化剤が配合されている。他方、
発泡ポリエチレン表面をコロナ放電処理しない場合は、
粘着剤の発泡ポリエチレンに対する密着性を高めるため
に硬化剤を配合しても、尚、凝集力が低いアクリル系粘
着剤が用いられているのが実情であった。(Prior Art) Foamed polyethylene products whose surfaces are treated with an adhesive are used as building materials, home appliances, cushioning materials for automobiles, gap tapes, and the like. In this manner, in order to adhesively process the surface of the foamed polyethylene, the surface of the foamed polyethylene is usually subjected to a corona discharge treatment in advance in order to increase the adhesion of the adhesive to the foamed polyethylene. As an adhesive, from the viewpoint of balance of light resistance, durability, heat resistance, cold resistance, etc.
Conventionally, solvent-based adhesives mainly composed of acrylic resin have been used, and in this case, a curing agent is usually added to the adhesive in order to particularly improve its heat resistance. On the other hand,
If the foamed polyethylene surface is not treated with corona discharge,
Even if a curing agent is added to increase the adhesion of the adhesive to foamed polyethylene, the reality is that acrylic adhesives with low cohesive strength are still used.
しかし、発泡ポリエチレン表面をコロナ放電処理するに
は、そのための設備を必要とし、更に、処理表面の状態
を確認するために、表面張力等を測定して、工程管理を
行なう必要がある。他方、凝集力の低いアクリル系粘着
剤を用いるときは、前述したように、粘着剤が凝集力が
低いために、自体の耐熱性が悪く、例えば、夏場のよう
に、高い温度環境下においては、凝集破壊によって、接
着力が早期に著しく低下する。However, in order to subject the surface of foamed polyethylene to corona discharge treatment, equipment for this purpose is required, and furthermore, in order to confirm the condition of the treated surface, it is necessary to measure the surface tension and perform process control. On the other hand, when using an acrylic adhesive with a low cohesive force, as mentioned above, the adhesive itself has poor heat resistance due to its low cohesive force. , due to cohesive failure, the adhesion strength decreases significantly at an early stage.
（発明が解決しようとする課題）
本発明は、従来の発泡ポリエチレン用粘着剤における上
記した問題を解決するためになされたものであって、発
泡ポリエチレン表面にコロナ放電処理を行なわずして、
耐熱性及び耐寒性にすぐれる接着を達成することができ
る発泡ポリエチレン用粘着剤組成物を提供することを目
的とする。(Problems to be Solved by the Invention) The present invention was made in order to solve the above-mentioned problems with conventional pressure-sensitive adhesives for foamed polyethylene.
An object of the present invention is to provide a pressure-sensitive adhesive composition for foamed polyethylene that can achieve adhesion with excellent heat resistance and cold resistance.
（課題を解決するための手段）
本発明の発泡ポリエチレン用粘着剤組成物は、アルキル
基の炭素数が２〜１８である（メタ）アクリル酸エステ
ル（アクリル酸エステル又はメタクリル酸を意味する。(Means for Solving the Problems) The adhesive composition for foamed polyethylene of the present invention is a (meth)acrylic ester (meaning an acrylic ester or methacrylic acid) in which the alkyl group has 2 to 18 carbon atoms.
以下、同じ。）を主体とする単量体混合物を共重合して
なるアクリル系共重合体６０〜９５重量％と、不均化ロ
ジンエステル樹脂と水添ロジンエステル樹脂との混合物
４０〜５重量％を有効成分として含有することを特徴と
する。same as below. ) and 40 to 5% by weight of a mixture of disproportionated rosin ester resin and hydrogenated rosin ester resin as active ingredients. It is characterized by containing as follows.
本発明において用いるアルキル基の炭素数が２〜１８で
ある（メタ）アクリル酸エステルとしては、例えば、（
メタ）アクリル酸エチル、（メタ）アクリル酸プロピル
、（メタ）アクリル酸ブチル、（メタ）アクリル酸２−
エチルヘキシル、（メタ）アクリル酸ノニル、（メタ）
アクリル酸ラウリル、（メタ）アクリル酸ステアリル等
を挙げることができる。Examples of (meth)acrylic acid esters whose alkyl groups have 2 to 18 carbon atoms used in the present invention include (
Ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, 2-(meth)acrylate
Ethylhexyl, nonyl (meth)acrylate, (meth)
Examples include lauryl acrylate and stearyl (meth)acrylate.
本発明におけるアクリル系共重合体は、このような（メ
タ）アクリル酸エステルを主体とする単量体混合物を共
重合してなるアクリル系共重合体であって、共重合単量
体としては、例えば、（メタ）アクリル酸、イタコン酸
、マレイン酸、無水マレイン酸、クロトン酸、フマル酸
等のようなエチレン性不飽和脂肪酸、２−ヒドロキシエ
チル（メタ）アクリレート、ヒドロキシプロピル（メタ
）アクリレート等の水酸基含有（メタ）アクリレート、
（メタ）アクリルアミド、Ｎ−メチロール（メタ）ア
クリルアミド、ジメチルアミノエチル（メタ）アクリレ
ート等のアミド基又はアミノ基含有単量体、酢酸ビニル
等のビニルエステル、スチレン、α−メチルスチレン等
の芳香族ビニル単量体、（メタ）アクリロニトリル等の
シアノ基含有単量体、（メタ）アクリル酸メチル等を挙
げることができる。多くの場合、共重合単量体としては
、上記エチレン性不飽和脂肪酸や水酸基含有（メタ）ア
クリレートが好ましく用いられる。The acrylic copolymer in the present invention is an acrylic copolymer obtained by copolymerizing a monomer mixture mainly composed of (meth)acrylic acid ester, and the copolymerized monomers include: For example, ethylenically unsaturated fatty acids such as (meth)acrylic acid, itaconic acid, maleic acid, maleic anhydride, crotonic acid, fumaric acid, etc., 2-hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate, etc. Hydroxyl group-containing (meth)acrylate,
(Meth)acrylamide, N-methylol (meth)acrylamide, dimethylaminoethyl (meth)acrylate, and other amide or amino group-containing monomers, vinyl esters such as vinyl acetate, and aromatic vinyls such as styrene and α-methylstyrene. Examples include monomers, cyano group-containing monomers such as (meth)acrylonitrile, methyl (meth)acrylate, and the like. In many cases, the above-mentioned ethylenically unsaturated fatty acids and hydroxyl group-containing (meth)acrylates are preferably used as the comonomer.
特に、本発明においては、全単量体混合物において、前
記（メタ）アクリル酸エステルが５０〜９９重量％を占
めるのが好ましく、通常、これら（メタ）アクリル酸エ
ステルは、２種以上の混合物として用いられる。特に、
これら（メタ）アクリル酸エステルにおいて、アクリル
酸２−エチルヘキシルが５０〜９０重量％を占めるのが
好ましい。（メタ）アクリル酸エステルにおいて、アク
リル酸２−エチルヘキシルが５０重量％未満のときは、
得られる粘着剤組成物が耐寒性に劣り、９０重量％を越
えるときは、耐熱性に劣る傾向があるからである。In particular, in the present invention, it is preferable that the (meth)acrylic ester accounts for 50 to 99% by weight of the total monomer mixture, and usually these (meth)acrylic esters are used as a mixture of two or more. used. especially,
In these (meth)acrylic esters, 2-ethylhexyl acrylate preferably accounts for 50 to 90% by weight. In the (meth)acrylic ester, when 2-ethylhexyl acrylate is less than 50% by weight,
This is because the resulting pressure-sensitive adhesive composition tends to have poor cold resistance, and when it exceeds 90% by weight, it tends to have poor heat resistance.
本発明による粘着剤組成物は、有効成分として、このよ
うなアクリル系共重合体を６０〜９５重量％含む。特に
、好ましくは７０〜９０重量％の範囲である。The adhesive composition according to the present invention contains 60 to 95% by weight of such an acrylic copolymer as an active ingredient. In particular, it is preferably in the range of 70 to 90% by weight.
更に、本発明による粘着剤組成物は、有効成分として、
上記アクリル系共重合体と共に、不均化ロジンエステル
樹脂と水添ロジンエステル樹脂との混合物を含有する。Furthermore, the adhesive composition according to the present invention contains as an active ingredient,
It contains a mixture of a disproportionated rosin ester resin and a hydrogenated rosin ester resin together with the acrylic copolymer.
これらは粘着付与樹脂として知られており、市販品を用
いることができる。These are known as tackifying resins, and commercially available products can be used.
不均化ロジンエステル樹脂は、不均化ロジンをグリセリ
ン、ペンタエリスリトール等でエステル化してなる樹脂
であり、得ら−れる粘着剤組成物において、高温時の凝
集力の低下を防ぐのに有効である。他方、水添ロジンエ
ステル樹脂は、ロジンや不均化ロジンをグリセリン、ペ
ンタエリスリトール等でエステル化し、更に、水添して
なる樹脂であって、粘着剤組成物の発泡ポリエチレンに
対する密着性を高めるのに有効である。従って、本発明
においては、これら粘着付与樹脂は、軟化点が比較的高
温であって、特に、６０〜１５０°Ｃの範囲にあるのが
好ましい。Disproportionated rosin ester resin is a resin made by esterifying disproportionated rosin with glycerin, pentaerythritol, etc., and is effective in preventing a decrease in cohesive strength at high temperatures in the resulting adhesive composition. be. On the other hand, hydrogenated rosin ester resin is a resin made by esterifying rosin or disproportionated rosin with glycerin, pentaerythritol, etc. and then hydrogenating it, and is used to improve the adhesion of the adhesive composition to foamed polyethylene. It is effective for Therefore, in the present invention, these tackifying resins preferably have a relatively high softening point, particularly in the range of 60 to 150°C.
本発明による粘着剤組成物においては、上記粘着付与樹
脂の混合物は、粘着剤組成物の有効成分中、４０〜５重
量％の範囲で用いられ、好ましくは、３０〜１０重量％
の範囲で用いられる。粘着剤組成物の有効成分において
、上記粘着付与樹脂の混合物が５重量％未満のときは、
得られる粘着剤組成物が発泡ポリエチレンに対する密着
性に劣るようになり、他方、４０重量％を越えるときは
、耐寒性に劣ることとなるので好ましくない。In the adhesive composition according to the present invention, the mixture of the tackifier resins is used in an amount of 40 to 5% by weight, preferably 30 to 10% by weight, based on the active ingredients of the adhesive composition.
Used within the range of In the active ingredients of the adhesive composition, when the mixture of the tackifying resin is less than 5% by weight,
The adhesive composition obtained will have poor adhesion to foamed polyethylene, and on the other hand, if it exceeds 40% by weight, it will have poor cold resistance, which is not preferable.
更に、本発明においては、上記粘着付与樹脂の混合物は
、得られる粘着剤組成物が発泡ポリエチレンに対して密
着性にすぐれるのみならず、耐寒性及び耐熱性のバラン
スに一層すぐれるように、不均化ロジンエステル樹脂１
０〜８０重量％と水添ロジンエステル樹脂９０〜２０重
量％、特に、不均化ロジンエステル樹脂３０〜７０重量
％と水添ロジンエステル樹脂７０〜３０重量％とからな
るのが好ましい。Furthermore, in the present invention, the mixture of the tackifier resins is used so that the resulting adhesive composition not only has excellent adhesion to foamed polyethylene, but also has a better balance of cold resistance and heat resistance. Disproportionated rosin ester resin 1
It is preferably comprised of 0 to 80% by weight of the hydrogenated rosin ester resin and 90 to 20% by weight of the hydrogenated rosin ester resin, particularly 30 to 70% by weight of the disproportionated rosin ester resin and 70 to 30% by weight of the hydrogenated rosin ester resin.
本発明による粘着剤組成物は、耐熱性を高めるために、
硬化剤を含有することが好ましい。このような硬化剤と
しては、例えば、イソシアネート化合物、エポキシ化合
物、有機金属錯体、アジリジン化合物等が用いられる。In order to improve heat resistance, the adhesive composition according to the present invention has the following features:
It is preferable to contain a curing agent. Examples of such curing agents include isocyanate compounds, epoxy compounds, organometallic complexes, and aziridine compounds.
通常、イソシアネート化合物が硬化剤として好ましく用
いられる。この場合、イソシアネート化合物は、得られ
る粘着剤組成物が耐熱性と耐寒性とのバランスにすぐれ
るように、通常、前記アクリル系共重合体と粘着付与樹
脂との合計量、即ち、有効成分量１００重量部に対して
、０．２〜５重量部の範囲で用いられる。Generally, isocyanate compounds are preferably used as curing agents. In this case, the isocyanate compound is usually used in the total amount of the acrylic copolymer and the tackifier resin, that is, the amount of active ingredients, so that the resulting adhesive composition has an excellent balance between heat resistance and cold resistance. It is used in a range of 0.2 to 5 parts by weight per 100 parts by weight.
硬化剤としてのイソシアネート化合物は、粘着剤組成物
が活性水素を有する単量体成分を含むときに有効である
。このような活性水素を有する単量体成分としては、例
えば、前述したよ なエチレン性不飽和脂肪酸や水酸基
含有単量体を挙げることができ、特に、アクリル系共重
合体が水酸基含有（メタ）アクリレートを単量体成分と
して含むとき、イソシアネート化合物を硬化剤として、
アクリル系共重合体１００重量部に対して、０．０１〜
０．５重量部の範囲で配合することによって、得られる
粘着剤組成物の耐熱性を著しく改善することができる。Isocyanate compounds as curing agents are effective when the adhesive composition contains a monomer component having active hydrogen. Examples of such monomer components having active hydrogen include ethylenically unsaturated fatty acids and hydroxyl group-containing monomers as described above.In particular, acrylic copolymers contain hydroxyl groups (meth). When containing acrylate as a monomer component, using an isocyanate compound as a curing agent,
0.01 to 100 parts by weight of acrylic copolymer
By blending within the range of 0.5 parts by weight, the heat resistance of the resulting pressure-sensitive adhesive composition can be significantly improved.
しかし、過多に用いることは、得られる粘着剤組成物の
発泡ポリエチレンに対する密着性を低めるので好ましく
ない。However, it is not preferable to use too much because it lowers the adhesiveness of the resulting pressure-sensitive adhesive composition to foamed polyethylene.
（発明の効果）
以上のように、本発明による粘着剤組成物は、有効成分
として、アクリル酸２−エチルヘキシルを主成分とする
アクリル系共重合体と共に、水添ロジンエステル樹脂を
含むので、発泡ポリエチレン表面の粘着加工を行なうに
際して、粘着剤自体の発泡ポリエチレンに対する密着性
が高く、更に、粘着付与樹脂として、高軟化点の不均化
ロジンエステル樹脂も含むので、耐寒性にすぐれるにも
かかわらず、高温時の凝集力の低下もない。(Effects of the Invention) As described above, the adhesive composition according to the present invention contains a hydrogenated rosin ester resin as well as an acrylic copolymer mainly composed of 2-ethylhexyl acrylate as an active ingredient. When performing adhesive processing on polyethylene surfaces, the adhesive itself has high adhesion to foamed polyethylene, and it also contains a disproportionated rosin ester resin with a high softening point as a tackifying resin, so it has excellent cold resistance. Also, there is no decrease in cohesive force at high temperatures.
従って、本発明による粘着剤組成物によれば、従来のよ
うに、発泡ポリエチレン表面をコロナ放電処理する必要
がなく、且つ、そのための煩瑣な工程管理の必要なしに
、発泡ポリエチレン表面に密着性、耐熱性及び耐寒性に
すぐれる粘着加工を施すことができる。Therefore, according to the adhesive composition of the present invention, it is not necessary to subject the surface of foamed polyethylene to a corona discharge treatment as in the past, and there is no need for complicated process control for that purpose. Adhesive processing with excellent heat resistance and cold resistance can be applied.
（実施例） 以下に本発明の実施例について説明する。(Example) Examples of the present invention will be described below.
実施例１〜９及び比較例１〜４
（１） アクリル系共重合体の製造
冷却管を備えた反応器にアクリル酸２−エチルヘキシル
６０重量部、アクリル酸ブチル３８重量部、アクリル酸
２重量部及びメタクリル酸２−ヒドロキシエチル０．０
５重量部を酢酸エチル８０重量部と共に仕込み、昇温し
て、３０分間還流温度で保持した後、ベンジルパーオキ
サイド０．１重量部を酢酸エチル１０重量部に溶解した
溶液を滴下し、７時間反応させた。この後、更に、ベン
ジルパーオキサイド０．１重量部を酢酸エチル１０重量
部に溶解した溶液を滴下し、４時間反応させた。Examples 1 to 9 and Comparative Examples 1 to 4 (1) Production of acrylic copolymer 60 parts by weight of 2-ethylhexyl acrylate, 38 parts by weight of butyl acrylate, and 2 parts by weight of acrylic acid in a reactor equipped with a cooling tube. and 2-hydroxyethyl methacrylate 0.0
5 parts by weight were added together with 80 parts by weight of ethyl acetate, the temperature was raised, and the temperature was maintained at reflux temperature for 30 minutes. Then, a solution of 0.1 parts by weight of benzyl peroxide dissolved in 10 parts by weight of ethyl acetate was added dropwise for 7 hours. Made it react. Thereafter, a solution of 0.1 parts by weight of benzyl peroxide dissolved in 10 parts by weight of ethyl acetate was added dropwise, and the mixture was allowed to react for 4 hours.
次いで、これにトルエン２２重量部を加え、冷却して、
アクリル系共重合体溶液を得た。このアクリル系共重合
体溶液は、固形分４４．８％、粘度１４０００ｃｐｓ
（２０℃）であった。Next, 22 parts by weight of toluene was added to this, cooled,
An acrylic copolymer solution was obtained. This acrylic copolymer solution has a solid content of 44.8% and a viscosity of 14,000 cps.
(20°C).
このアクリル系共重合体溶液に第１表に示す量で不均化
ロジンエステル樹脂と水添ロジンエステル樹脂との混合
物と硬化剤としてのイソシアネート化合物を加え、混合
して、アクリル系粘着剤組成物を得た。A mixture of a disproportionated rosin ester resin and a hydrogenated rosin ester resin and an isocyanate compound as a curing agent are added to this acrylic copolymer solution in the amounts shown in Table 1 and mixed to form an acrylic pressure-sensitive adhesive composition. I got it.
尚、比較例では、粘着付与樹脂として、上記ロジンエス
テル樹脂の一方のみを用いた。In addition, in the comparative example, only one of the above-mentioned rosin ester resins was used as the tackifying resin.
（２） ウレタンフオームテープ及び発泡ポリエチレ
ンテープの作製
この粘着剤組成物を厚さ５ｆｉの４０倍発発泡ウレタン
フオームシート上び厚さ３鶴の３０倍発発泡ポリエチレ
ンシート上転写法にて乾燥塗膜厚み７０μｍとなるよう
に塗布した後、それぞれ８０℃で５分間加熱乾燥して、
ウレタンフオームテープ及び発泡ポリエチレンテープを
作製した。(2) Preparation of urethane foam tape and foamed polyethylene tape This adhesive composition was dried and coated on a 40 times foamed urethane foam sheet with a thickness of 5fi and a 30 times foamed polyethylene sheet with a thickness of 3cm using a transfer method. After coating to a thickness of 70 μm, each was heated and dried at 80°C for 5 minutes.
Urethane foam tape and foamed polyethylene tape were produced.
（３） ウレタンフオームテープ及び発泡ポリエチレ
ンテープの物性の測定
（２）で作製したウレタンフオームテープ及び発泡ポリ
エチレンテープの物性を以下に示す測定法に従って測定
した。その結果を第１表に示す。尚、これらテープは、
粘着剤組成物を塗工した後、４０℃で３日間放置した後
、測定に供した。(3) Measurement of physical properties of urethane foam tape and foamed polyethylene tape The physical properties of the urethane foam tape and foamed polyethylene tape produced in (2) were measured according to the measurement method shown below. The results are shown in Table 1. In addition, these tapes are
After applying the adhesive composition, it was left at 40° C. for 3 days and then subjected to measurement.
泡ポリエチレンテープへの の
ステンレス鋼板（ＳＵＳ３０４）に２５ｎ×２５１ｍの
発泡ポリエチレンテープを貼付し、その上を２ ｋｇロ
ールを一往復させて、接着させた。次いで、８０℃のギ
アーオーブン中に２０分間放置した後、テープに５００
ｇの静荷重をかけ、テープが落下するまでの時間を測定
し、併せて接着破壊の状態を観察した。To foam polyethylene tape A foam polyethylene tape of 25 nm x 251 m was attached to a stainless steel plate (SUS304), and a 2 kg roll was moved back and forth over the tape to bond it. Then, after leaving it in a gear oven at 80°C for 20 minutes, the tape was
A static load of g was applied, the time until the tape fell was measured, and the state of adhesion failure was also observed.
旦！株
ポリエチレン板、ウレタンフオームテープ及び発泡ポリ
エチレンテープを一１０℃の冷凍庫中に３時間以上放置
した。同じ温度でこのポリエチレン板に２５ｎ幅で上記
ウレタンフオームテープ及び発泡ポリエチレンテープを
それぞれ貼り合わせ、２０分後、それぞれ引張速度３０
０ｔｍ／分で９０゛剥離強度を測定した。Dan! The polyethylene board, the urethane foam tape, and the expanded polyethylene tape were left in a freezer at -10°C for 3 hours or more. The above-mentioned urethane foam tape and foamed polyethylene tape were laminated to this polyethylene plate with a width of 25n at the same temperature, and after 20 minutes, the tension speed was 30.
90° peel strength was measured at 0 tm/min.
旦然性
５０鶴径ポリプロピレン棒上に幅２５ｍ、長さ８０ｎの
ウレタンフオームテープ及び発泡ポリエチレンテープを
それぞれ貼り合わせ、２０分間放置した後、８０℃のギ
アーオープン中に１時間放置した。冷却後、ウレタンフ
オームテープ及び発泡ポリエチレンテープのそれぞれの
端部がポリプロピレン棒から剥離した距離を測定し、併
せて破壊状態を観察した。A urethane foam tape and a foamed polyethylene tape each having a width of 25 m and a length of 80 n were laminated onto a 50 mm diameter polypropylene rod, left for 20 minutes, and then left for 1 hour in a gear open state at 80°C. After cooling, the distance at which each end of the urethane foam tape and foamed polyethylene tape peeled off from the polypropylene rod was measured, and the state of destruction was also observed.
特許出願人 積水化学工業株式会社 代表者 廣１） 馨Patent applicant Sekisui Chemical Co., Ltd. Representative Hiro 1) Kaoru
Claims (1)
クリル酸エステルを主体とする単量体混合物を共重合し
てなるアクリル系共重合体６０〜９５重量％と、不均化
ロジンエステル樹脂と水添ロジンエステル樹脂との混合
物４０〜５重量％を有効成分として含有することを特徴
とする発泡ポリエチレン用粘着剤組成物。(1) 60 to 95% by weight of an acrylic copolymer obtained by copolymerizing a monomer mixture mainly composed of (meth)acrylic acid esters in which the alkyl group has 2 to 18 carbon atoms, and a disproportionated rosin. An adhesive composition for foamed polyethylene, comprising 40 to 5% by weight of a mixture of an ester resin and a hydrogenated rosin ester resin as an active ingredient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1083317A JPH0751704B2 (en) | 1989-03-31 | 1989-03-31 | Adhesive composition for expanded polyethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1083317A JPH0751704B2 (en) | 1989-03-31 | 1989-03-31 | Adhesive composition for expanded polyethylene |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02261877A true JPH02261877A (en) | 1990-10-24 |
| JPH0751704B2 JPH0751704B2 (en) | 1995-06-05 |
Family
ID=13799049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1083317A Expired - Lifetime JPH0751704B2 (en) | 1989-03-31 | 1989-03-31 | Adhesive composition for expanded polyethylene |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0751704B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109535534A (en) * | 2018-11-06 | 2019-03-29 | 厦门聚富塑胶制品有限公司 | Viscosity discharges fast winding film and preparation method thereof under low temperature |
-
1989
- 1989-03-31 JP JP1083317A patent/JPH0751704B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109535534A (en) * | 2018-11-06 | 2019-03-29 | 厦门聚富塑胶制品有限公司 | Viscosity discharges fast winding film and preparation method thereof under low temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0751704B2 (en) | 1995-06-05 |
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