JP3945942B2 - Self-adhesive vinyl chloride sheet - Google Patents

Self-adhesive vinyl chloride sheet Download PDF

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Publication number
JP3945942B2
JP3945942B2 JP17188599A JP17188599A JP3945942B2 JP 3945942 B2 JP3945942 B2 JP 3945942B2 JP 17188599 A JP17188599 A JP 17188599A JP 17188599 A JP17188599 A JP 17188599A JP 3945942 B2 JP3945942 B2 JP 3945942B2
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Prior art keywords
vinyl chloride
weight
parts
sheet
self
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JP17188599A
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JP2001003008A (en
Inventor
昭平 佐藤
賢治 鶴岡
陽介 鈴木
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Denka Co Ltd
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Denki Kagaku Kogyo KK
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  • Adhesives Or Adhesive Processes (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、自己粘着性塩化ビニル系シートに係り、特に粘着力の高い自己粘着性塩化ビニル系シートに関する。
【0002】
【従来の技術】
従来、他の材料とは接着せず自己相互のみが接着し得る自己粘着性塩化ビニル系シートとしては、例えば、このシートをテープ状に裁断した包装結束テープ、包帯や止血テープ、写真等の仮止め、冷暖房設備の配線結束用シート、配管保温材止め用シート、防食用シート等に使用されている。かかる自己粘着性塩化ビニル系シートの粘着力にあっては、10〜65gf/10mmがよく、好ましくは20〜35gf/10mmがよいとされていた(例えば特開平6−128536号公報)。
【0003】
【発明が解決しようとする課題】
しかし、最近、さらに高い粘着力が要求されるようになり、具体的には30gf/10mm以上、好ましくは50gf/10mm以上の粘着力が要求されるようになった。
【0004】
本発明の目的は、かかる目的を達成すべく発明されたものであって、粘着力を30gf/10mm以上、好ましくは50gf/10mm以上に設定した自己粘着性塩化ビニル系用シートを提供するものである。
【0005】
【課題を解決する手段】
本発明は、上記に鑑み発明されたものであって、塩化ビニル系重合体100重量部、可塑剤5〜80重量部、粘着付与剤3〜20重量部及び改質剤1〜10重量部を混合した組成物をシート状に形成し、該シートをアニールした自己粘着性塩化ビニル系シートにおいて、該アニールの設定温度を前記粘着付与剤の軟化点〜該軟化点+55℃にしたことを特徴とする自己粘着性塩化ビニル系シートである。
【0006】
本発明においてアニールの設定温度を前記粘着付与剤の軟化点〜該軟化点+55℃にしたのは、アニール設定温度を変化させることにより粘着力の制御のできることがわかったためである。ここで、アニール設定温度は、あまりに高いと白化現象が発生し、あまりに低いとアニールの粘着力発現効果が低いため、前記範囲が好ましい。
【0007】
本発明における粘着付与剤としては、軟化点20〜120℃のものがよく、好ましくは軟化点80〜110℃のものがよい。軟化点はあまりに低いと高い粘着力が得られず、あまりに高いと高い粘着力を得るためにアニール温度を高くする必要が生じるためにかかる範囲に限定される。具体的には、ロジン系樹脂、テルペン系樹脂、脂肪族系石油樹脂、芳香族系石油樹脂、脂環族系石油樹脂、クロマン樹脂、スチレン系樹脂、アルキルフェノール樹脂、キシレン樹脂等を使用できるが、好ましくはテルペン系樹脂や脂肪族系石油樹脂がよく、試験した結果、これらの樹脂に限って高い粘着力を得ることができた。具体例としては、テルペン樹脂であるYSレジン(ヤスハラケミカル社製)、エスコレッツ(エッソ化学社製)がよい。
【0008】
ここで、上記粘着付与剤は、あまりに少ないと高い粘着力を発現させずあまりに多いと粘着力が高くなりすぎて剥離粘着力をも高くしてしまうため、3〜20重量部が良い。
【0009】
本発明における塩化ビニル系重合体は、ポリ塩化ビニルの他、塩化ビニル−酢酸ビニル共重合体、塩化ビニル−エチレン共重合体、塩化ビニル−プロピレン共重合体、塩素化ポリエチレン等や、これらの混合物を含むものを使用できる。ここで、塩化ビニル系重合体の重合度は700〜3000のものを使用できるが、加工性の問題から1700〜3000の高重合度の重合体がよく、この場合、低重合度(700〜1700)の場合に比べて初期弾性率が高く、風合いのよいシートを得ることができる。
【0010】
上記改質剤は、添加量があまりに多いと高い粘着力が得られずあまりに少ないと改質剤を入れた効果(柔軟化)が発現しないため、1〜10重量部配合するのが好ましい。該改質剤としては、MBS(メチルメタアクリレートブタジエンスチレングラフト共重合体)、EVA(エチレン酢酸ビニル共重合体)、MMA(メチルメタアクリレート)、SBS(スチレンブタジエンスチレン)、NBR(ノルマルブタジエンゴム)、塩素化ポリエチレン等がある。
【0011】
本発明における可塑剤としては、エステル系可塑剤、ポリエステル系可塑剤等を使用でき、好ましくはエステル系高分子量可塑剤が良い。可塑剤の具体例としては、DINP(フタル酸ジイソノニル)、DHP(フタル酸ジヘプチル)、DOP(フタル酸ジ−2−エチルヘキシル)、n−DOP(フタル酸ジ−n−オクチル)、DIDP(フタル酸ジイソデシル)、BBP(ベンジルブチルフタレート)、TOTM(トリメリット酸トリ−2−エチルヘキシル)、DOA(アジピン酸ジ−2−エチルヘキシル)、TCP(トリクレジルフォスフェート)、BOA(ベンジルオクチルアジペート)、DPCP(ジフェニルクレジルフォスフェート)若しくはアジピン酸ジイソデシル等、及びこれらの混合物がある。
【0012】
上記可塑剤の配合量は、あまりに少ないと可塑剤としての効果が発現せずあまりに多いと組成物自体の弾性力や引張強度が低下してしまうため、5〜80重量部が良い。
【0013】
本発明にかかる自己粘着シートの組成物に、必要に応じて安定剤、滑剤、難燃剤、充填剤を添加することができる。安定剤としては金属石鹸(高級脂肪酸の金属塩;例えばバリウム−亜鉛系、カルシウム−亜鉛系等)、鉛系等がある。滑剤としては、炭酸水素C12〜C30系、脂肪酸(ワックス)系、エステル(ワックス)系、脂肪酸エステル系、C12〜C30脂肪酸金属石鹸系、C12〜C30脂肪アルコール(ワックス)系等がある。難燃剤としては三酸化アンチモン等がある。充填剤としては炭酸カルシウム、タルク、シリカ等の無機充填剤等がある。
【0014】
本発明は、塩化ビニル系重合体100重量部、可塑剤5〜80重量部、粘着付与剤3〜20重量部及び改質剤1〜10重量部を混合した組成物をシート状に形成し、該シートをアニールした自己粘着性塩化ビニル系シートにおいて、該アニールの設定温度を前記粘着付与剤の軟化点〜該軟化点+55℃にしたことにより、30gf/10mm以上、好ましくは50gf/10mm以上の粘着力を有する自己粘着性塩化ビニル系用シートを得ることができる。
【0015】
【実施例】
以下、本発明の実施例について、表1を参照しつつ、比較例と対比しながら詳細に説明する。表1に本発明にかかる自己粘着性塩化ビニル系用シートの実施例の粘着付与剤とその軟化点、アニール温度、アニール温度と軟化点の差、さらにはアニール後に測定したシートの粘着力を示す。
【0016】
各実施例・比較例は、重合度1300のポリ塩化ビニル100重量部、可塑剤としてのDOP(フタル酸ジ−2−エチルヘキシル)55重量部、表1に開示した粘着付与剤10重量部、改質剤としてのMBS(日本合成ゴム社製)2重量部、安定剤としてのCa−Zn系安定剤(水澤化学社製)2重量部、St酸(日本油脂社製)0.2重量部、MMA(鐘淵化学社製)2重量部が配合されている。
【0017】
【表1】

Figure 0003945942
【0018】
ここで、表1のエスコレッツ(エッソ化学社製)はC59系石油樹脂、YSポリスター(ヤスハラケミカル社製)及びマイティーエース(ヤスハラケミカル社製)はテルペン樹脂、エステルガム(荒川化学工業社製)は水添ロジンエステルである。
【0019】
表1の粘着力はJIS Z 0237に準拠したものであり、その試料は、上記配合物をヘンシエルミキサーやバンバンバリーミキサー等によって混合し、カレンダー(145〜180℃)によって厚さ120μのシートを形成し、このシートを規定の長さ(20m)で巻き取ったものを各条件でアニールしたものである。なお、アニールの条件は、表1の温度で8時間である。
【0020】
各実施例・比較例における「アニール温度と軟化点の差」と粘着力の相関を図1に開示する。図1が示すように、前記差が0〜55℃の場合、粘着力が30gf/10mm以上となり、前記差が28〜48℃の場合、粘着力が50gf/10mm以上となった。
【0021】
【図1】
【0022】
【発明の効果】
本発明にあっては、塩化ビニル系重合体100重量部、可塑剤5〜80重量部、粘着付与剤3〜20重量部及び改質剤1〜10重量部を混合した組成物をシート状に形成し、該シートをアニールした自己粘着性塩化ビニル系シートにおいて、該アニールの設定温度を前記粘着付与剤の軟化点〜該軟化点+55℃にし、これにより、30gf/10mm以上の粘着力を得ることができた。
【図面の簡単な説明】
【図1】 各実施例・比較例における「アニール温度と軟化点の差」と粘着力の相関を示した図である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a self-adhesive vinyl chloride sheet, and more particularly to a self-adhesive vinyl chloride sheet having high adhesive strength.
[0002]
[Prior art]
Conventionally, as a self-adhesive vinyl chloride-based sheet that can be bonded only to each other without being bonded to other materials, for example, a packaging and binding tape obtained by cutting the sheet into a tape shape, a bandage, a hemostatic tape, a temporary photograph such as a photograph, etc. It is used as a wire binding sheet for air-conditioning equipment, a sheet for keeping pipe insulation, a sheet for anticorrosion, and the like. Regarding the adhesive strength of such a self-adhesive vinyl chloride sheet, 10 to 65 gf / 10 mm is preferable, and preferably 20 to 35 gf / 10 mm is preferable (for example, JP-A-6-128536).
[0003]
[Problems to be solved by the invention]
However, recently, higher adhesive strength has been demanded, specifically, an adhesive strength of 30 gf / 10 mm or more, preferably 50 gf / 10 mm or more has been demanded.
[0004]
An object of the present invention is to provide a self-adhesive vinyl chloride sheet having an adhesive strength set to 30 gf / 10 mm or more, preferably 50 gf / 10 mm or more, which has been invented to achieve such an object. is there.
[0005]
[Means for solving the problems]
The present invention has been invented in view of the above, and comprises 100 parts by weight of a vinyl chloride polymer, 5 to 80 parts by weight of a plasticizer, 3 to 20 parts by weight of a tackifier, and 1 to 10 parts by weight of a modifier. In the self-adhesive vinyl chloride sheet obtained by forming the mixed composition into a sheet shape and annealing the sheet, the set temperature of the annealing is from the softening point of the tackifier to the softening point + 55 ° C. This is a self-adhesive vinyl chloride sheet.
[0006]
In the present invention, the reason why the set temperature for annealing is set from the softening point of the tackifier to the softening point + 55 ° C. is because it was found that the adhesive force can be controlled by changing the set annealing temperature. Here, when the annealing set temperature is too high, a whitening phenomenon occurs, and when it is too low, the effect of developing the adhesive strength of annealing is low, so the above range is preferable.
[0007]
As a tackifier in this invention, a thing with a softening point of 20-120 degreeC is good, Preferably a thing with a softening point of 80-110 degreeC is good. If the softening point is too low, a high adhesive strength cannot be obtained. If the softening point is too high, the annealing temperature needs to be increased to obtain a high adhesive strength. Specifically, rosin resin, terpene resin, aliphatic petroleum resin, aromatic petroleum resin, alicyclic petroleum resin, chroman resin, styrene resin, alkylphenol resin, xylene resin, etc. can be used. Terpenic resins and aliphatic petroleum resins are preferable, and as a result of testing, high adhesive strength was obtained only for these resins. As a specific example, YS resin (manufactured by Yashara Chemical Co., Ltd.) and Escorez (manufactured by Esso Chemical Co., Ltd.) which are terpene resins are preferable.
[0008]
Here, if the amount of the tackifier is too small, high adhesive strength is not exhibited. If the amount is too large, the adhesive strength becomes too high and the peel adhesive strength is also increased.
[0009]
The vinyl chloride polymer in the present invention includes polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, vinyl chloride-ethylene copolymer, vinyl chloride-propylene copolymer, chlorinated polyethylene and the like, and mixtures thereof. Can be used. Here, although the degree of polymerization of the vinyl chloride polymer can be 700 to 3000, a polymer having a high degree of polymerization of 1700 to 3000 is preferable from the viewpoint of processability, and in this case, a low degree of polymerization (700 to 1700). ), A sheet having a high initial elastic modulus and a good texture can be obtained.
[0010]
When the amount of the modifier is too large, high adhesive strength cannot be obtained, and when the amount is too small, the effect of adding the modifier (softening) does not appear, and therefore it is preferable to add 1 to 10 parts by weight. Examples of the modifier include MBS (methyl methacrylate butadiene styrene graft copolymer), EVA (ethylene vinyl acetate copolymer), MMA (methyl methacrylate), SBS (styrene butadiene styrene), NBR (normal butadiene rubber). And chlorinated polyethylene.
[0011]
As the plasticizer in the present invention, an ester plasticizer, a polyester plasticizer, or the like can be used, and an ester high molecular weight plasticizer is preferable. Specific examples of the plasticizer include DINP (diisononyl phthalate), DHP (diheptyl phthalate), DOP (di-2-ethylhexyl phthalate), n-DOP (di-n-octyl phthalate), DIDP (phthalic acid) Diisodecyl), BBP (benzyl butyl phthalate), TOTM (tri-2-ethylhexyl trimellitic acid), DOA (di-2-ethylhexyl adipate), TCP (tricresyl phosphate), BOA (benzyl octyl adipate), DPCP (Diphenyl cresyl phosphate) or diisodecyl adipate and the like, and mixtures thereof.
[0012]
If the amount of the plasticizer is too small, the effect as a plasticizer is not manifested, and if it is too large, the elastic force and tensile strength of the composition itself are lowered.
[0013]
If necessary, a stabilizer, a lubricant, a flame retardant, and a filler can be added to the composition of the self-adhesive sheet according to the present invention. Stabilizers include metal soaps (metal salts of higher fatty acids; such as barium-zinc and calcium-zinc) and lead. As a lubricant, hydrogen carbonate C 12 -C 30 system, fatty acid (wax) system, ester (wax) system, fatty acid ester system, C 12 -C 30 fatty acid metal soap system, C 12 -C 30 fatty alcohol (wax) system Etc. Examples of the flame retardant include antimony trioxide. Examples of the filler include inorganic fillers such as calcium carbonate, talc, and silica.
[0014]
The present invention forms a composition obtained by mixing 100 parts by weight of a vinyl chloride polymer, 5 to 80 parts by weight of a plasticizer, 3 to 20 parts by weight of a tackifier, and 1 to 10 parts by weight of a modifier into a sheet shape, In the self-adhesive vinyl chloride sheet obtained by annealing the sheet, the set temperature of the annealing is set to the softening point of the tackifier to the softening point + 55 ° C., so that it is 30 gf / 10 mm or more, preferably 50 gf / 10 mm or more. A self-adhesive vinyl chloride sheet having adhesive strength can be obtained.
[0015]
【Example】
Hereinafter, examples of the present invention will be described in detail with reference to Table 1 and in comparison with comparative examples. Table 1 shows the tackifiers of the examples of the self-adhesive vinyl chloride sheet according to the present invention, the softening point thereof, the annealing temperature, the difference between the annealing temperature and the softening point, and the adhesive strength of the sheet measured after annealing. .
[0016]
Each example and comparative example includes 100 parts by weight of polyvinyl chloride having a polymerization degree of 1300, 55 parts by weight of DOP (di-2-ethylhexyl phthalate) as a plasticizer, 10 parts by weight of the tackifier disclosed in Table 1, 2 parts by weight of MBS (manufactured by Nippon Synthetic Rubber) as a quality agent, 2 parts by weight of a Ca—Zn stabilizer (manufactured by Mizusawa Chemical) as a stabilizer, 0.2 part by weight of St acid (manufactured by NOF Corporation), 2 parts by weight of MMA (manufactured by Kaneka Chemical Co., Ltd.) is blended.
[0017]
[Table 1]
Figure 0003945942
[0018]
Here, Escoretz (Esso Chemical Co., Ltd.) in Table 1 is a C 5 C 9 petroleum resin, YS Polyster (Yasuhara Chemical Co.) and Mighty Ace (Yasuhara Chemical Co.) are terpene resins, ester gum (Arakawa Chemical Industries). Is a hydrogenated rosin ester.
[0019]
The adhesive strength in Table 1 is based on JIS Z 0237, and the sample is prepared by mixing the above-mentioned composition with a Henschel mixer, a Banbanbury mixer, or the like, and forming a sheet having a thickness of 120 μm with a calendar (145 to 180 ° C.). A sheet formed and wound up with a specified length (20 m) is annealed under various conditions. The annealing conditions are 8 hours at the temperature shown in Table 1.
[0020]
FIG. 1 discloses the correlation between “difference between annealing temperature and softening point” and adhesive strength in each of the examples and comparative examples. As shown in FIG. 1, when the difference was 0 to 55 ° C., the adhesive strength was 30 gf / 10 mm or more, and when the difference was 28 to 48 ° C., the adhesive strength was 50 gf / 10 mm or more.
[0021]
[Figure 1]
[0022]
【The invention's effect】
In the present invention, a composition in which 100 parts by weight of a vinyl chloride polymer, 5 to 80 parts by weight of a plasticizer, 3 to 20 parts by weight of a tackifier, and 1 to 10 parts by weight of a modifier are mixed into a sheet form. In the self-adhesive vinyl chloride sheet formed and annealed, the annealing temperature is set from the softening point of the tackifier to the softening point + 55 ° C., thereby obtaining an adhesive strength of 30 gf / 10 mm or more. I was able to.
[Brief description of the drawings]
FIG. 1 is a diagram showing a correlation between “difference between annealing temperature and softening point” and adhesive strength in each example and comparative example.

Claims (5)

塩化ビニル系重合体100重量部、可塑剤5〜80重量部、粘着付与剤3〜20重量部及び改質剤1〜10重量部を混合した組成物をシート状に形成し、該シートをアニールした自己粘着性塩化ビニル系シートにおいて、下記の(1)と(2)を具備する自己粘着性塩化ビニル系シート。
(1)前記アニールの設定温度が前記粘着付与剤の軟化点〜該軟化点+55℃である。
(2)JISZ 0237に規定される粘着力が30〜60gf/10mmである。
A composition in which 100 parts by weight of a vinyl chloride polymer, 5 to 80 parts by weight of a plasticizer, 3 to 20 parts by weight of a tackifier and 1 to 10 parts by weight of a modifier are mixed is formed into a sheet, and the sheet is annealed A self-adhesive vinyl chloride sheet comprising the following (1) and (2):
(1) The set temperature of the annealing is from the softening point of the tackifier to the softening point + 55 ° C.
(2) JISZ The adhesive strength specified in 0237 is 30 to 60 gf / 10 mm.
前記アニールの設定温度が前記粘着付与剤の軟化点+28℃〜該軟化点+48℃である請求項1に記載の自己粘着性塩化ビニル系シート。The self-adhesive vinyl chloride sheet according to claim 1, wherein a set temperature of the annealing is a softening point of the tackifier + 28 ° C to the softening point + 48 ° C. 粘着付与剤がテルペン系樹脂又は脂肪族系石油樹脂である請求項1又は2に記載の自己粘着性塩化ビニル系シート。The self-adhesive vinyl chloride sheet according to claim 1 or 2, wherein the tackifier is a terpene resin or an aliphatic petroleum resin. 請求項1又は2に記載の自己粘着性塩化ビニル系シートを用いた包装結束テープ。A packaging and binding tape using the self-adhesive vinyl chloride sheet according to claim 1. 塩化ビニル系重合体100重量部、可塑剤5〜80重量部、粘着付与剤3〜20重量部及び改質剤1〜10重量部を、含有する組成物をA composition containing 100 parts by weight of a vinyl chloride polymer, 5 to 80 parts by weight of a plasticizer, 3 to 20 parts by weight of a tackifier, and 1 to 10 parts by weight of a modifier.
(a)混合する工程、(A) mixing step;
(b)前記混合した組成物を、145〜180℃の温度でカレンダー成形してシートに形成する工程、(B) a step of calendering the mixed composition at a temperature of 145 to 180 ° C. to form a sheet;
(c)前記シートを該粘着付与剤の軟化点〜該軟化点+55℃でアニールする工程、(C) a step of annealing the sheet at a softening point of the tackifier to the softening point + 55 ° C .;
を順次有する自己粘着性塩化ビニル系シートの製造方法。A method for producing a self-adhesive vinyl chloride sheet having the following.
JP17188599A 1999-06-18 1999-06-18 Self-adhesive vinyl chloride sheet Expired - Fee Related JP3945942B2 (en)

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JP2005194371A (en) * 2004-01-07 2005-07-21 Denki Kagaku Kogyo Kk Self-tacking sheet
EP3578603A4 (en) * 2017-02-03 2020-11-18 Mitsui Chemicals, Inc. Resin composition and molded body formed therefrom
KR102053156B1 (en) * 2019-06-24 2020-01-08 박현민 Film composition for anti-corrosion having self-adhesion by blooming and manufacturing method thereof

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