JPS6241246B2 - - Google Patents

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Publication number
JPS6241246B2
JPS6241246B2 JP6079979A JP6079979A JPS6241246B2 JP S6241246 B2 JPS6241246 B2 JP S6241246B2 JP 6079979 A JP6079979 A JP 6079979A JP 6079979 A JP6079979 A JP 6079979A JP S6241246 B2 JPS6241246 B2 JP S6241246B2
Authority
JP
Japan
Prior art keywords
weight
parts
content
oil
resin
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.)
Expired
Application number
JP6079979A
Other languages
Japanese (ja)
Other versions
JPS55152771A (en
Inventor
Naotake Sato
Hideo Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Oil Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Oil Corp filed Critical Nippon Oil Corp
Priority to JP6079979A priority Critical patent/JPS55152771A/en
Publication of JPS55152771A publication Critical patent/JPS55152771A/en
Publication of JPS6241246B2 publication Critical patent/JPS6241246B2/ja
Granted legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Description

【発明の詳现な説明】[Detailed description of the invention]

本発明は接着性、耐熱安定性の改善されたホツ
トメルト組成物に関し、曎に詳しくは、゚チレン
系共重合䜓および又はワツクス類ならびに暹脂
成分を必須成分ずし、該暹脂成分が石油類の熱分
解により埗られる分解油留分の内の特定留分の重
合によ぀お埗られた芳銙族系暹脂であるホツトメ
ルト組成物であり、接着性、耐熱安定性、䜎枩特
性の改善された極めお優秀なホツトメルト組成物
に関する。 近幎、ホツトメルト組成物、その代衚的な熱溶
融性接着剀は100固圢であり、火灜などの危険
が少いこず、接着のセツト時間が短瞮できるこ
ず、取扱いが容易であるこずなどの倚くの利点を
有し、たたアプリケヌタヌの急速な普及ず共に補
本、包装、朚工などの広い分野においお甚いられ
おいる。ホツトメルト接着剀は垞枩で固䜓の接着
剀であり、䜿甚時に熱により溶融し、各皮基材に
塗垃し、接着させ、冷华するこずにより固化し、
接着力を発珟させるものである。このためホツト
メルト接着剀は、各皮の基材に察し優れた接着性
を有し、たた品質の䞀定した補品を埗るために
は、耐熱安定性の優れたものでなければならず、
さらに甚途によ぀おは、䜎枩においおも柔軟性が
芁求される。 珟圚、これらのホツトメルト接着剀のベヌスポ
リマヌずしおは、゚チレン−酢酞ビニル共重合䜓
EVA、゚チレン−アクリレヌト共重合䜓など
の゚チレン系共重合䜓、ポリ゚チレン、熱可塑性
ゎム、ポリアミド、ポリりレタン、ポリ゚ステル
などの熱可塑性高分子物質が甚いられ、これに粘
着付䞎暹脂、粘床調節剀ずしお各皮の䜎分子量の
熱可塑性暹脂、各皮のワツクス類を配合し、接着
性および溶融粘床の改善がなされおいる。 ベヌスポリマヌずしおは、安䟡であるこず、柔
軟性、耐熱安定性に優れおいるこずから特に
EVA、゚チレン−アクリレヌトなどの゚チレン
系共重合䜓が広く䜿甚されおいる。たた粘着付䞎
暹脂ずしおは、ロゞンおよびテルペン系暹脂など
の倩然暹脂、各皮石油暹脂が甚いられ、特にロゞ
ン系暹脂は接着力、䜎枩での柔軟性に優れ、たた
テルペン系暹脂も、耐熱安定性に優れおいるこず
から広く䜿甚されおいるが、いずれも倩然物を原
料ずしおいるため高䟡であり、資源的にも問題が
ある。たた安䟡である石油留分を原料ずする各皮
の石油暹脂類が、ロゞンおよびテルペン暹脂に替
るものずしお提案され、䜿甚されおいるが、いず
れも接着性、耐熱安定性、䜎枩特性などにおいお
ロゞンおよびテルペン暹脂に匹敵するものは珟圚
のずころ提案されおいない。 本発明はホツトメルト組成物においお、ロゞン
およびテルペン暹脂などから成るホツトメルト接
着剀に比范しお同等もしくは、それ以䞊の性胜を
有し、䞻ずしお豊富なか぀安䟡な工業原料から合
成された粘着付䞎暹脂を含有した極めお優秀なホ
ツトメルト組成物を提䟛するこずを目的ずするも
のである。 すなわち本発明は、粘着付䞎暹脂ず゚チレン系
共重合物ずを䞻成分ずするホツトメルト組成物に
おいお該粘着付䞎暹脂成分が石油類の熱分解によ
り埗られる分解油留分のうち145〜220℃の沞点範
囲を有する留分を蒞留するこずにより、共圹ゞオ
レフむン含有量が0.7wt以䞋で、共圹ゞオレフ
むン含有率が以䞋であり、か぀むンデンおよ
びそのアルキル誘導䜓の合蚈含有量が2wt以䞋
でむンデン含有率が以䞋であ぀お、さらにビ
ニルトル゚ン含有率が60〜90の条件に調補した
留分100重量郚にテトラハむドロむンデン、メチ
ルテトラハむドロむンデン、ビニルシクロヘキセ
ン、ビニルノルボルネンから遞ばれた少なくずも
䞀皮をないし50重量郚添加したものを原料油ず
しお、0.1ないし3.0重量郚のプノヌル類の存圚
䞋で、フリヌデルクラフツ型觊媒を甚いお重合し
お埗られる軟化点60〜120℃の芳銙族系暹脂であ
るこずを特城ずするホツトメルト組成物を提䟛す
るものである。 たた本発明においおはこれらの䞻成分にさらに
ワツクス類を含有させたすぐれたホツトメルト組
成物を提䟛するものである。 本発明の組成物は埓来の石油暹脂を甚いたホツ
トメルト組成物に比べ、接着性、耐熱安定性、䜎
枩特性などいずれもはるかに優れた性胜を有し、
たたロゞン系およびテルペン系などの倩然暹脂系
に匹敵できるか、もしくはこれを凌駕する極めお
優秀な性胜を有するものである。 本発明における゚チレン系共重合物ずは、゚チ
レンず共重合成分ずしおの酢酞ビニルなどのモノ
カルボン酞ビニル゚ステル、アクリル酞、アクリ
ル酞゚ステルの䞀皮又は二皮以䞊の共重合䜓であ
り、該共重合物䞭の共重合成分含有量は10〜60重
量、奜たしくは15〜45重量、メルトむンデツ
クスMI0.1ないし1000、奜たしくはないし
500である。 ここでメルトむンデツクスはASTMD−1238に
埓い、190℃、荷重2160で10分間で流出したグ
ラム数をいう。 たた、本発明の組成物に甚いられるワツクス類
ずしおはパラフむンワツクス、マむクロクリスタ
リンワツクスなどの石油系ワツクス、倩然ワツク
ス、ポリ゚チレンワツクス、ポリプロピレンワツ
クス、アタクチツクポリプロピレンワツクスなど
がその目的に応じ適宜利甚できる。 本発明における粘着付䞎暹脂成分は、石油類の
熱分解により埗られる分解油留分のうち145〜220
℃の範囲内の沞点を有する留分を蒞留するこずに
より埗た所定性状の留分ずテトラハむドロむンデ
ン、メチルテトラハむドロむンデン、ビニルシク
ロヘキセン、ビニルノルボルネン以䞋成分(b)ず
するから遞ばれた少くずも䞀皮およびプノヌ
ル類を原料にしお重合しお埗た芳銙族暹脂であ
る。 䞀般に石油系炭化氎玠暹脂は石油類の熱分解に
より埗られる、垞枩で液状の分解油留分を重合し
お埗られるが、その沞点範囲は20℃〜280℃、20
℃〜170℃、145℃〜280℃ずい぀た広い範囲の沞
点を有する留分を原料油ずしおいる。沞点範囲が
20℃〜140℃皋床の分解油留分を原料ずした堎
合、埗られる暹脂は芳銙族栞を含たないいわゆる
非芳銙族系炭化氎玠暹脂ずなる。この堎合は原料
油䞭に共圹ゞオレフむン、非共圹ゞオレフむンを
倚量に含むため暹脂の䞍飜和床が高く色盞、耐熱
安定性が悪いものである。 䞀方沞点範囲が145℃〜280℃の分解油留分をそ
のたた原料ずした堎合には、埗られる暹脂は芳銙
族系暹脂ずなるものの、この堎合も耐熱安定性、
色盞が十分ずはいえず、熱溶融性接着剀ずしたず
きの接着性も劣぀たものずなる。 本発明者らは、原料油䞭の各成分に぀いおそれ
ぞれ特城を詳现に怜蚎した結果、埌述するように
原料油䞭の特定成分を厳密に蒞留分離した留分か
ら接着性、耐熱安定性の良い暹脂を埗、この暹脂
を粘着付䞎暹脂ずしお採甚するこずにより性胜の
極めお優秀な熱溶融性接着剀が埗られるこずを芋
出し、本発明を完成するに至぀た。 本発明による粘着付䞎暹脂を埗るための出発原
料油の぀である分解油留分はナフサ、灯油たた
は軜油留分等の石油留分をスチヌムクラツキング
等の熱分解により゚チレン、プロピレン、ブテン
類およびブタゞ゚ン類を補造する際埗られる副産
物のうち145℃〜220℃の沞点範囲内の分解油留分
である。この沞点範囲の留分の分解油に぀いおガ
スクロマトグラフ法により各成分を分析した結
果、衚に瀺す通り、代衚的に次の沞点を有する
各成分が怜出された。
The present invention relates to a hot melt composition with improved adhesion and heat resistance stability, and more specifically, the present invention relates to a hot melt composition having improved adhesiveness and heat resistance stability, and more specifically, the composition contains an ethylene copolymer and/or waxes and a resin component as essential components, and the resin component is formed by thermal decomposition of petroleum. This hot melt composition is an aromatic resin obtained by polymerizing a specific fraction of the obtained cracked oil fraction, and is an extremely excellent hot melt composition with improved adhesiveness, heat resistance stability, and low temperature properties. relating to things. In recent years, hot-melt compositions, a typical hot-melt adhesive, are 100% solid and have many advantages, such as less risk of fire, reduced adhesive set time, and ease of handling. With the rapid spread of applicators, it is used in a wide range of fields such as bookbinding, packaging, and woodworking. Hot melt adhesive is an adhesive that is solid at room temperature, and when used, it is melted by heat, applied to various base materials, bonded, and solidified by cooling.
It develops adhesive strength. For this reason, hot melt adhesives must have excellent adhesion to various base materials, and in order to obtain products of consistent quality, they must have excellent heat resistance stability.
Furthermore, depending on the application, flexibility is required even at low temperatures. Currently, the base polymers for these hot melt adhesives include ethylene copolymers such as ethylene-vinyl acetate copolymer (EVA) and ethylene-acrylate copolymer, polyethylene, thermoplastic rubber, polyamide, polyurethane, and polyester. Thermoplastic polymer substances are used, and adhesion and melt viscosity are improved by blending them with tackifying resins, various low molecular weight thermoplastic resins as viscosity modifiers, and various waxes. As a base polymer, it is particularly useful because it is inexpensive, has excellent flexibility, and has excellent heat resistance stability.
Ethylene-based copolymers such as EVA and ethylene-acrylate are widely used. Natural resins such as rosin and terpene resins, as well as various petroleum resins, are used as tackifying resins.Rosin resins in particular have excellent adhesive strength and flexibility at low temperatures, while terpene resins have excellent heat resistance and stability. Although they are widely used due to their excellent properties, they are expensive because they are all made from natural materials, and there are resource issues. In addition, various petroleum resins made from inexpensive petroleum fractions have been proposed and used as alternatives to rosin and terpene resins, but none of them have the same advantages as rosin in terms of adhesion, heat stability, and low-temperature properties. Nothing comparable to terpene resins has been proposed to date. The present invention provides a hot-melt composition containing a tackifying resin synthesized mainly from abundant and inexpensive industrial raw materials, which has performance equivalent to or superior to hot-melt adhesives made of rosin, terpene resin, etc. The purpose is to provide an extremely excellent hot melt composition. That is, the present invention provides a hot melt composition containing a tackifying resin and an ethylene copolymer as main components, in which the tackifying resin component has a boiling point of 145 to 220°C among cracked oil fractions obtained by thermal decomposition of petroleum. By distilling a fraction having a range, the conjugated diolefin content is 0.7 wt% or less, the conjugated diolefin content is 3% or less, and the total content of indene and its alkyl derivatives is 2 wt% or less. At least one member selected from tetrahydroindene, methyltetrahydroindene, vinylcyclohexene, and vinylnorbornene is added to 100 parts by weight of the distillate prepared under conditions where the vinyltoluene content is 8% or less and the vinyltoluene content is 60 to 90%. An aromatic type with a softening point of 60 to 120°C obtained by polymerizing 5 to 50 parts by weight of a raw material oil using a Friedel-Crafts catalyst in the presence of 0.1 to 3.0 parts by weight of phenols. The present invention provides a hot melt composition characterized in that it is a resin. Further, the present invention provides an excellent hot melt composition which further contains waxes in addition to these main ingredients. The composition of the present invention has far superior performance in terms of adhesiveness, heat resistance stability, and low temperature properties compared to conventional hot melt compositions using petroleum resins.
In addition, it has extremely excellent performance that is comparable to or even better than natural resins such as rosin and terpene. The ethylene-based copolymer in the present invention is a copolymer of ethylene and one or more of monocarboxylic acid vinyl esters such as vinyl acetate, acrylic acid, and acrylic acid esters as a copolymerization component, and the copolymer The copolymerization component content in the product is 10 to 60% by weight, preferably 15 to 45% by weight, and the melt index (MI) is 0.1 to 1000, preferably 1 to 1000.
It is 500. Here, the melt index refers to the number of grams flowing out in 10 minutes at 190°C and a load of 2160g according to ASTMD-1238. The waxes used in the composition of the present invention include petroleum waxes such as paraffin wax and microcrystalline wax, natural waxes, polyethylene waxes, polypropylene waxes, and atactic polypropylene waxes depending on the purpose. Can be used as appropriate. The tackifier resin component in the present invention is comprised of 145 to 220% of the cracked oil fraction obtained by thermal decomposition of petroleum.
A fraction with predetermined properties obtained by distilling a fraction having a boiling point within the range of °C and a fraction selected from tetrahydroindene, methyltetrahydroindene, vinylcyclohexene, and vinylnorbornene (hereinafter referred to as component (b)). It is an aromatic resin obtained by polymerizing at least one type of phenol and phenols as raw materials. Generally, petroleum-based hydrocarbon resins are obtained by polymerizing cracked oil fractions that are liquid at room temperature, obtained by thermal decomposition of petroleum, and their boiling points range from 20℃ to 280℃,
The raw material oil is a fraction having a boiling point in a wide range from 145°C to 280°C. boiling point range
When a cracked oil fraction of about 20°C to 140°C is used as a raw material, the resulting resin is a so-called non-aromatic hydrocarbon resin that does not contain aromatic nuclei. In this case, since the raw material oil contains a large amount of conjugated diolefin and non-conjugated diolefin, the resin has a high degree of unsaturation and has poor hue and heat resistance stability. On the other hand, if a cracked oil fraction with a boiling point range of 145°C to 280°C is used as a raw material, the resin obtained will be an aromatic resin, but in this case also, the heat resistance stability,
The hue is not sufficient, and the adhesive properties when used as a hot-melt adhesive are also poor. As a result of a detailed study of the characteristics of each component in the raw oil, the present inventors found that a resin with good adhesiveness and heat resistance stability was obtained from the fraction obtained by strictly distilling specific components in the raw oil, as described below. The inventors have discovered that by employing this resin as a tackifying resin, a hot-melt adhesive with extremely excellent performance can be obtained, and have completed the present invention. The cracked oil fraction, which is one of the starting raw materials for obtaining the tackifier resin according to the present invention, is a petroleum fraction such as naphtha, kerosene or light oil fraction, which is produced by thermal decomposition such as steam cracking to produce ethylene, propylene, butene, etc. It is a cracked oil fraction with a boiling point range of 145°C to 220°C, which is a by-product obtained when producing butadienes and butadienes. As a result of analyzing each component of the cracked oil of the fraction in this boiling point range by gas chromatography, as shown in Table 1, each component typically having the following boiling points was detected.

【衚】【table】

【衚】 以䞊の成分のうちスチレンおよびその誘導䜓、
むンデンおよびその誘導䜓の合蚈を重合可胜成分
ずする。たた䞊蚘の衚の泚および泚で瀺した
ように加熱等によりシクロペンタゞ゚ンおよびメ
チルシクロペンタゞ゚ンが生成し原料油に含たれ
おいる堎合はこれらも重合可胜成分に加える。 本発明による暹脂ずするためには石油類の熱分
解により埗られる分解油留分のうち145〜220℃の
範囲内の沞点を有する留分から次の条件を満足す
るように蒞留しお調補した留分を原料油ずしお甚
いるこずが必芁条件の䞀぀である。原料油の条件
以䞋石油類の熱分解により埗られる分解油留分
のうち145〜220℃の範囲内の沞点を有する留分を
「出発原料油」ず称し、これを蒞留するこずによ
り埗た以䞋の条件を満足する留分を「原料油(a)」
ず称する。。 (ã‚€) 原料油(a)䞭のシクロペンタゞ゚ンおよびメチ
ルシクロペンタゞ゚ンの合蚈含有量すなわち共
圹ゞオレフむン含有量を0.7wt以䞋ずし、か
぀(1)匏で定矩する共圹ゞオレフむン含有率を
以䞋にする。 共圹ゞオレフむン含有率原料油䞭の共圹ゞオレフむン含有量原料油䞭の重合可胜成分
×100 (1) 泚 共圹ゞオレフむン含有量ずはシクロペ
ンタゞ゚ンおよびメチルシクロペンタゞ
゚ンの合蚈含有量をいう。 (ロ) 原料油(a)䞭のむンデンおよびそのアルキル誘
導䜓の合蚈含有量を2wt以䞋ずし、か぀(2)匏
で定矩するむンデン含有率を以䞋にする。 むンデン含有率原料油䞭のむンデンおよびそのアルキル誘導䜓含有量原料油䞭の重合可胜成分
×100 (2) (ハ) 原料油(a)䞭で、(3)匏で定矩するビニルトル゚
ンパラ、メタ、オルトビニルトル゚ンの合
蚈の含有率を60〜90にする。 ビニルトル゚ン含有率原料油䞭のビニルトル゚ン含有量原料油䞭の重合可胜成分
×100 (3) 出発原料油および原料油(a)の各成分はガスクロ
マトグラフ法により次の条件で分析する。 (i) スチレン、アリルベンれン、−ト
リメチルベンれンおよび−゚チルトル゚ンは
20wtのア゜シ゚ヌテツド゚レクトリカルむ
ンダストリヌズリミテツド補アピ゚ゟングリ
ヌスApiezon  greaseAssociated
Electrical Industries Ltd.の補品を含むゞ
ペンマンビルコヌポレヌシペンのセラむト
CeliteJohns Manville Corp.の補品を長
さのカラムに充填し、100℃でヘリりムの
流量60c.c.minの条件で分析する。 (ii) (i)で瀺した成分以倖の各成分は20wtのポ
リ゚チレングリコヌル4000を含むセラむトを長
さのカラムに充填し、125℃でヘリりムの
流量60c.c.minの条件で分析する。 以䞊の方法により分析されたスチレンずそのア
ルキル誘導䜓、ビニルトル゚ン類、むンデンずそ
のアルキル誘導䜓およびシクロペンタゞ゚ンずメ
チルシクロペンタゞ゚ンの含有量の合蚈量を重合
可胜成分ずする。 ここで出発原料油を蒞留しお原料油(a)を埗るに
は、通垞、圓該出発原料油を理論段数15〜50段、
奜たしくは20〜40段の蒞留塔に匵蟌み、垞圧奜た
しくは枛圧で蒞留しおその塔頂留出油又は塔䞭倮
郚より䞊郚の偎流留出油ずしお埗るこずができ
る。たた、奜たしくは䞊蚘塔頂留出油をさらに別
の枛圧蒞留塔通垞理論段数〜30段に匵蟌
み、塔頂留出油を分離陀去し塔底油を回収しお埗
るこずができる。このようにしお埗た原料油(a)は
前蚘した性状を有するこずが必芁であるが、通垞
この原料油(a)䞭のスチレン含有量は5wt以䞋、
さらには2wt以䞋のものである。 本発明による暹脂の補造方法においお原料油(a)
の芏制限界である共圹ゞオレフむン含有量が
0.7wt、共圹ゞオレフむン含有率が、むン
デンおよびそのアルキル誘導䜓含有量が2wtお
よびむンデン含有率が、ビニルトル゚ンの含
有率が60〜90、奜たしくは70〜85ずいう
項目のうち項目でもこの芏制限界を超える原料
を甚いお䞊蚘重合条件で重合しおも埗られる暹脂
の色盞および耐熱安定性は悪く、ずくに着色が著
しくなり、しかも熱溶融性接着剀ずしたずきの接
着性、可撓性、耐熱安定性が悪くなり接着剀ずし
おの性胜が十分でないのである。 本発明においおは、䞊蚘原料油(a)に前蚘成分(b)
の䞀皮たたは二皮以䞊を必須成分ずしお添加す
る。 前蚘成分(b)の玔床は100である必芁は無く、
シクロペンタゞ゚ン、ゞシクロペンタゞ゚ン等を
40皋床たで含む留分を䜿甚するこずも可胜であ
る。 前蚘成分(b)を添加しない、あるいはその添加量
が原料油(a)100重量郚に察しお重量郚未満の堎
合にぱチレン系共重合物ずの盞溶性が悪く、配
合物のくもり点も高くなり接着性の優れたホツト
メルト組成物が埗られない。たた原料油(a)100重
量郚に察しお䞊蚘成分を50重量郚より倚く添加し
た堎合にも接着性の優れた熱溶融性接着剀は埗ら
れない。したが぀お䞊蚘成分は原料油(a)100重量
郚に察しおないし50重量郚、奜たしくはない
し40重量郚の範囲で甚いる。 さらに䞊蚘原料油(a)100重量郚に察しお前蚘成
分(b)から遞ばれた少なくずも䞀皮をないし50重
量郚添加したものを原料油ずしお重合する堎合
に、゚チレン系共重合物、ワツクス類ずの盞溶性
が良く、接着特性の優れた暹脂を埗るために適圓
な化合物を共存させる必芁がある。本発明に斌お
はプノヌルあるいはクレゟヌル、キシレノヌ
ル、−−ブチルプノヌル、−オクチルフ
゚ノヌル、ノニル−プノヌルなどのアルキル眮
換プノヌル類等の分子䞭にプノヌル性−OH
基を有する、通垞炭玠数ないし20のプノヌル
類を原料油(a)100重量郚に察しお0.1ないし3.0重
量郚、奜たしくは0.5ないし重量郚存圚させお
重合させる。 これらの重合原料を甚いお粘着付䞎暹脂を補造
する方法は以䞋のずおりである。 すなわち、これらの重合原料を重合反応噚に収
容し通垞反応枩床−30〜80℃、奜たしくは〜60
℃で觊媒ずしおフリヌデルクラフツ型觊媒を甚い
お重合する。重合反応は連続又はバツチ方匏で行
なうこずができる。重合反応埌アルカリ、氎、ア
ルコヌル等で觊媒を倱掻させ、觊媒を陀去した
埌、未反応油留分および䜎分子重合物を蒞発たた
は蒞留等により陀くこずにより軟化点60〜120
℃、奜たしくは80〜100℃の芳銙族系暹脂を埗
る。䞊蚘フリヌデルクラフツ型觊媒ずしおは、䞉
ふ぀化ホり玠、塩化アルミニりムなどがその代衚
的なものずしお甚いられ、これらの各皮錯合䜓た
ずえば゚ヌテル、プノヌル錯合䜓が甚いられ
る。これらの觊媒は通垞原料油に察しお0.01〜
5wt、奜たしくは0.1〜3wt䜿甚する。 なお、本発明においおは、前蚘したようにプ
ノヌル類の存圚䞋で重合を行なうのであるが、こ
のプノヌル類はフリヌデルクラフツ型觊媒のフ
゚ノヌル錯合䜓ずしお䟛絊するこずもできる。必
芁量のプノヌル類を党おプノヌル錯合䜓ずし
お䟛絊するこずは觊媒量が倚すぎるこずになり有
利ではないが、プノヌル類の䞀郚をプノヌル
錯合䜓ずしお䟛絊し、他郚はそのたた重合系䞭に
添加するこずが奜たしく採甚される。 なお、このようにしお埗られた芳銙族系暹脂䞭
の䞍飜和二重結合の䞀郚又は党郚を氎玠化した暹
脂も有効に粘着付䞎暹脂成分ずしお甚いるこずが
できる。 本発明のホツトメルト組成物は䞊蚘暹脂を粘着
付䞎暹脂成分ずしお、゚チレン系共重合物をたた
必芁に応じワツクス類ず加熱溶融混合し調補され
るが、その暹脂成分ず゚チレン系共重合物、ワツ
クス類ずの配合割合は䞋蚘の広い範囲から適宜遞
択できる。通垞それらの配合割合ぱチレン系共
合物100重量郚に察し、䞊蚘粘着付䞎暹脂20ない
し300重量郚、奜たしくは30ないし200重量郚、ワ
ツクス類ないし500重量郚、奜たしくは10ない
し400重量郚で瀺される。たた必芁に応じお炭酞
カルシりム、酞化チタン、タルクおよびクレヌな
どの充填剀をないし重量郚、酞化防止剀な
いし重量郚、可塑剀ないし20重量郚、顔料な
どを配合するこずができる。䞊蚘配合においお
玙、プラスチツクフむルム、アルミ箔その他の包
装材の接着剀ずしお䜿甚する堎合は比范的゚チレ
ン共重合物の少ない配合を遞び、朚工甚、補本甚
などの比范的匷い接着力を必芁ずする堎合にぱ
チレン系共重合物の倚い配合によりホツトメルト
組成物を調補するのが望たしい。 以䞋に本発明の内容をさらに具䜓的に明らかに
するために実斜䟋を瀺す。 実斜䟋  先ず本発明においお䜿甚される粘着付䞎暹脂成
分は䟋えば次のようにしお補造される。 䞀䟋ずしおナフサのスチヌムクラツキングで副
生する145℃〜220℃の沞点範囲の分解油留分は
ガスクロマト分析の結果から次の組成を瀺した。 重合可胜成分wt 47.63 シクロペンタゞ゚ンおよびメチルシクロ ペンタゞ゚ンの合蚈含有量wt 1.9 むンデンおよびそのアルキル誘導䜓の 合蚈含有量wt 10.2 ゞシクロペンタゞ゚ン含有量wt 0.7 共圹ゞオレフむン含有率 4.0 むンデン含有率 21.4 この分解油留分を出発原料油ずしこれを衚
に瀺す粟留塔−に加熱噚を経由しお匵り蟌
み、塔頂から本発明の原料油の芏制条件の䞀぀で
あるむンデンおよびそのアルキル誘導䜓の合蚈含
有量が2wt以䞋、むンデン含有率が以䞋ず
なる留分が埗られるように粟留塔の運転条件を蚭
定する。その条件は衚に瀺した。
[Table] Among the above components, styrene and its derivatives,
The sum of indene and its derivatives is the polymerizable component. Furthermore, as shown in Notes 1 and 2 of the above table, if cyclopentadiene and methylcyclopentadiene are produced by heating or the like and are contained in the raw oil, these are also added to the polymerizable components. In order to obtain the resin according to the present invention, a distillate prepared by distilling a fraction having a boiling point within the range of 145 to 220°C from a cracked oil fraction obtained by thermal decomposition of petroleum so as to satisfy the following conditions must be used. One of the requirements is to use fractions as feedstock. Conditions of feedstock oil (Hereinafter, among the cracked oil fractions obtained by thermal decomposition of petroleum, the fraction with a boiling point within the range of 145 to 220°C will be referred to as "starting feedstock oil", and the fraction obtained by distilling this A distillate that satisfies the following conditions is called "raw oil (a)"
It is called. ). (a) The total content of cyclopentadiene and methylcyclopentadiene in feedstock oil (a), that is, the conjugated diolefin content, is 0.7 wt% or less, and the conjugated diolefin content defined by formula (1) is 3.
% or less. Conjugated diolefin content (%) = Conjugated diolefin content (wt%) in feedstock oil / Polymerizable component in feedstock oil (wt%)
%) x 100%...(1) Note 1 Conjugated diolefin content refers to the total content of cyclopentadiene and methylcyclopentadiene. (b) The total content of indene and its alkyl derivatives in the raw oil (a) is 2 wt% or less, and the indene content defined by formula (2) is 8% or less. Indene content (%) = Content of indene and its alkyl derivatives in feedstock oil (wt%) / Polymerizable components in feedstock oil (wt%) x 100%...(2) (c) In feedstock oil (a) Then, the content of vinyltoluene (total of para, meta, and orthovinyltoluene) defined by formula (3) is set to 60 to 90%. Vinyltoluene content (%) = Vinyltoluene content (wt%) in feedstock oil / Polymerizable components in feedstock oil (wt%)
) x 100%...(3) Each component of the starting stock oil and stock oil (a) is analyzed by gas chromatography under the following conditions. (i) Styrene, allylbenzene, 1,3,5-trimethylbenzene and o-ethyltoluene are
20wt% Apiezon L grease, Associated Electrical Industries Limited
Celite (a product of Johns Manville Corp.) containing Johns Manville Corp. (a product of Electrical Industries Ltd.) was packed in a 3 m long column at 100°C and a helium flow rate of 60 c.c./min. Analyze with. (ii) Each component other than those shown in (i) was analyzed using a 3 m long column filled with Celite containing 20 wt% polyethylene glycol 4000 at 125°C and a helium flow rate of 60 c.c./min. do. The total content of styrene and its alkyl derivatives, vinyltoluenes, indene and its alkyl derivatives, and cyclopentadiene and methylcyclopentadiene analyzed by the above method is defined as a polymerizable component. In order to distill the starting stock oil to obtain the stock oil (a), the starting stock oil is usually distilled using 15 to 50 theoretical plates.
It is preferably packed in a distillation column with 20 to 40 plates, and distilled under normal pressure, preferably reduced pressure, to obtain an oil distilled from the top of the column or a side stream distillate above the center of the column. Preferably, the above-mentioned top distillate oil is further charged into another vacuum distillation column (usually having 5 to 30 theoretical plates), the top distillate oil is separated and removed, and the bottom oil is recovered. . The raw material oil (a) thus obtained needs to have the properties described above, but usually the styrene content in this raw material oil (a) is 5 wt% or less,
Furthermore, it is less than 2wt%. In the method for producing resin according to the present invention, raw material oil (a)
The conjugated diolefin content, which is the regulatory limit for
0.7wt%, conjugated diolefin content 3%, indene and its alkyl derivatives content 2wt% and indene content 8%, vinyltoluene content 60-90%, preferably 70%-85%.
Even if the polymerization is carried out under the above polymerization conditions using raw materials that exceed the regulatory limits for even one of the items, the color and heat stability of the resulting resin will be poor, and the coloration will be particularly marked, and furthermore, when used as a hot-melt adhesive. The adhesion, flexibility, and heat resistance stability of the adhesive deteriorates, resulting in insufficient performance as an adhesive. In the present invention, the component (b) is added to the raw material oil (a).
One or more of these are added as essential ingredients. The purity of the component (b) does not need to be 100%,
Cyclopentadiene, dicyclopentadiene, etc.
It is also possible to use fractions containing up to about 40%. If component (b) is not added, or if the amount added is less than 5 parts by weight per 100 parts by weight of raw material oil (a), the compatibility with the ethylene copolymer will be poor and the clouding point of the blend will decrease. The adhesive properties of the hot melt composition are also high, making it impossible to obtain a hot melt composition with excellent adhesive properties. Further, even if more than 50 parts by weight of the above components are added to 100 parts by weight of the raw material oil (a), a hot-melt adhesive with excellent adhesiveness cannot be obtained. Therefore, the above components are used in an amount of 5 to 50 parts by weight, preferably 5 to 40 parts by weight, based on 100 parts by weight of the raw material oil (a). Furthermore, in the case of polymerizing as a raw material oil in which 5 to 50 parts by weight of at least one selected from the above component (b) is added to 100 parts by weight of the above raw material oil (a), ethylene copolymers, waxes, etc. In order to obtain a resin that has good compatibility with the resin and has excellent adhesive properties, it is necessary to coexist with a suitable compound. In the present invention, phenolic -OH is present in the molecule of phenol or alkyl-substituted phenols such as cresol, xylenol, p-t-butylphenol, p-octylphenol, and nonyl-phenol.
The polymerization is carried out in the presence of 0.1 to 3.0 parts by weight, preferably 0.5 to 2 parts by weight, of a phenol having a group, usually having 6 to 20 carbon atoms, based on 100 parts by weight of the raw oil (a). The method for producing a tackifying resin using these polymerization raw materials is as follows. That is, these polymerization raw materials are placed in a polymerization reactor and the reaction temperature is usually -30 to 80°C, preferably 0 to 60°C.
Polymerization is carried out at °C using a Friedel-Crafts type catalyst as the catalyst. The polymerization reaction can be carried out continuously or batchwise. After the polymerization reaction, the catalyst is deactivated with alkali, water, alcohol, etc., the catalyst is removed, and the unreacted oil fraction and low-molecular polymers are removed by evaporation or distillation to achieve a softening point of 60 to 120.
An aromatic resin having a temperature of 80 to 100°C is obtained. As the Friedel-Crafts type catalyst, boron trifluoride, aluminum chloride, etc. are typically used, and various complexes thereof, such as ether and phenol complexes, are used. These catalysts are usually 0.01~
Use 5wt%, preferably 0.1-3wt%. In the present invention, the polymerization is carried out in the presence of phenols as described above, but the phenols can also be supplied as a phenol complex of a Friedel-Crafts type catalyst. Although it is not advantageous to supply all the necessary amount of phenols as a phenol complex because the amount of catalyst is too large, it is possible to supply a part of the phenols as a phenol complex and add the other part as is to the polymerization system. This is preferably adopted. Note that a resin obtained by hydrogenating some or all of the unsaturated double bonds in the aromatic resin thus obtained can also be effectively used as a tackifying resin component. The hot melt composition of the present invention is prepared by heating and melt-mixing the above-mentioned resin as a tackifying resin component and an ethylene copolymer and waxes as required. The blending ratio can be appropriately selected from the following wide range. Usually, their compounding ratio is 20 to 300 parts by weight, preferably 30 to 200 parts by weight of the above-mentioned tackifying resin, and 0 to 500 parts by weight, preferably 10 to 400 parts by weight of the waxes, per 100 parts by weight of the ethylene copolymer. It is indicated by. Further, if necessary, 0 to 5 parts by weight of fillers such as calcium carbonate, titanium oxide, talc, and clay, 0 to 5 parts by weight of antioxidants, 0 to 20 parts by weight of plasticizers, pigments, etc. can be blended. . When using the above formulation as an adhesive for paper, plastic film, aluminum foil, and other packaging materials, choose a formulation with relatively low ethylene copolymer content, and require relatively strong adhesive strength for woodworking, bookbinding, etc. In some cases, it is desirable to prepare a hot melt composition by blending a large amount of the ethylene copolymer. Examples will be shown below to clarify the content of the present invention more specifically. Example 1 First, the tackifying resin component used in the present invention is manufactured, for example, as follows. As an example, cracked oil fraction F with a boiling point range of 145° C. to 220° C., which is produced as a by-product in the steam cracking of naphtha, showed the following composition based on the results of gas chromatography analysis. Polymerizable components (wt%) 47.63 Total content of cyclopentadiene and methylcyclopentadiene (wt%) 1.9 Total content of indene and its alkyl derivatives (wt%) 10.2 Dicyclopentadiene content (wt%) 0.7 Conjugated diolefin content Rate (%) 4.0 Indene content rate (%) 21.4 Using this cracked oil fraction F as the starting material oil, Table 2
The rectification column A-1 shown in Figure 1 is charged via a heater, and from the top of the column, the total content of indene and its alkyl derivatives is 2 wt% or less, which is one of the regulatory conditions for the feedstock of the present invention, and the indene content is The operating conditions of the rectifying column are set so that a fraction with a concentration of 8% or less can be obtained. The conditions are shown in Table 2.

【衚】 ぀いで−塔塔頂から留出する留分を衚に
瀺す粟留塔−に匵り蟌み、衚に瀺した運転
条件によりシクロペンタゞ゚ンずメチルシクロペ
ンタゞ゚ンの合蚈含有量が0.7wt以䞋、共圹ゞ
オレフむン含有率が以䞋ずいう本発明の原料
油芏制を満足する原料油(a)を−塔塔底から埗
る。共圹ゞオレフむン類は−塔塔頂から留出
する。 この操䜜により、出発原料油F100重量郚から
本発明の原料油(a)54重量郚が埗られた。たたこの
原料油(a)の組成は次のずおりであ぀た。 重合可胜性分wt 45.73 シクロペンタゞ゚ンおよびメチルシクロペンタ
ゞ゚ン合蚈含有量wt 0.45 むンデンおよびそのアルキル誘導䜓の 合蚈含有量wt 1.62 ビニルトル゚ン含有量wt 33.46 共圹ゞオレフむン含有率 0.98 むンデン含有率 3.54 ビニルトル゚ン含有率 73.17 スチレン含有量wt 1.3 このようにしお埗られた原料油(a)100重量郚に
察し、テトラハむドロむンデン10重量郚およびフ
゚ノヌル重量郚を添加しお、䞉フツ化硌玠プ
ノラヌトを0.8wt加えお30℃で時間重合した
埌、カセむ゜ヌダ氎溶液で觊媒を陀去し、次いで
氎掗しお蒞留により未反応の油および䜎重合物を
陀去しお暹脂−を埗た。暹脂−
の軟化点環球法は93℃、臭玠䟡ASTMD−
1158−57Tによるは18、色盞以䞋ガヌドナ
ヌ色数でASTMD−1554−58Tに準ずるであ぀
た。 かくしお埗られた暹脂−を40重量郚、゚チ
レン−酢酞ビニル共重合䜓䞉井ポリケミカル株
匏䌚瀟補゚バフレツクス220、酢酞ビニル含
量28MI15040重量郚、パラフむンワツクス
日本石油株匏䌚瀟補融点145〓20重量郚を玄
180℃で溶融混合し、ホツトメルト組成物を調補
し評䟡した結果を衚に瀺した。 実斜䟋  原料油(a)100重量郚に察しビニルノルボルネン
15重量郚および−クレゟヌル1.5重量郚を添加
しお䞉フツ化硌玠プノラヌト0.8wtを加え20
℃で時間重合を行぀た埌実斜䟋ず同様に凊理
し、暹脂−を埗た。暹脂−の軟
化点は87℃、臭玠䟡22、色盞であ぀た。次いで
実斜䟋ず同様にしおホツトメルト組成物を調補
し評䟡した結果を衚に瀺した。 実斜䟋  原料油(a)100重量郚に察し−ビニル−−シ
クロヘキセン30重量郚およびプノヌル重量郚
を加えお原料油にトル゚ン50重量郚に懞濁させた
無氎塩化アルミニりム粉末重量郚を埐々に添加
し、実斜䟋ず同様に重合、埌凊理を行い、軟化
点90℃、臭玠䟡35、色盞の暹脂−を埗
た。次いで実斜䟋ず同様にしおホツトメルト組
成物を調補し評䟡した結果を衚に瀺した。 比范䟋  実斜䟋における分解油留分F100重量郚に察
しおビニルノルボルネン15重量郚およびプノヌ
ル重量郚を加え、実斜䟋ず同䞀条件で重合を
行い、軟化点106℃、臭玠䟡26、色盞の暹脂
−を埗、実斜䟋ず同様にしおホツトメ
ルト組成物を調補し評䟡した結果を衚に瀺し
た。 比范䟋  原料油(a)をそのたた実斜䟋ず同䞀条件で重合
を行ない、軟化点97、臭玠䟡、色盞以䞋の
暹脂−を埗、実斜䟋ず同様にしおホツ
トメルト組成物を調補し評䟡した結果を衚に瀺
した。 比范䟋  原料油(a)100重量郚に察し−ビニル−−シ
クロヘキセン100重量郚を加えた原料油にトル゚
ン50重量郚に懞濁させた無氎塩化アルミニりム粉
末重量郚を埐々に添加し、実斜䟋ず同様に重
合、埌凊理を行い、軟化点92℃、臭玠䟡43、色盞
の暹脂−を埗、実斜䟋ず同様にしお
ホツトメルト組成物を調補し評䟡した結果を衚
に瀺した。 比范䟋  実斜䟋の炭化氎玠暹脂の代わりにロゞンWW
軟化点76℃−を䜿甚した結果を衚に瀺
した。
[Table] Next, the fraction distilled from the top of the A-1 column was charged into the rectification column C-1 shown in Table 2, and under the operating conditions shown in Table 2, the total content of cyclopentadiene and methylcyclopentadiene was 0.7. A feedstock oil (a) that satisfies the feedstock oil regulations of the present invention, with a conjugated diolefin content of 3% or less by weight, is obtained from the bottom of the C-1 column. Conjugated diolefins are distilled from the top of the C-1 column. Through this operation, 54 parts by weight of the raw material oil (a) of the present invention was obtained from 100 parts by weight of the starting raw material F. The composition of this raw material oil (a) was as follows. Polymerizable content (wt%) 45.73 Total content of cyclopentadiene and methylcyclopentadiene (wt%) 0.45 Total content of indene and its alkyl derivatives wt% 1.62 Vinyltoluene content (wt%) 33.46 Conjugated diolefin content (%) ) 0.98 Indene content (%) 3.54 Vinyltoluene content (%) 73.17 Styrene content (wt%) 1.3 To 100 parts by weight of the raw material oil (a) thus obtained, 10 parts by weight of tetrahydroindene and After adding 1 part by weight of phenol and 0.8 wt% of boron trifluoride phenolate and polymerizing at 30°C for 3 hours, the catalyst was removed with an aqueous solution of caustic soda, then washed with water, and unreacted oil and low polymerization were removed by distillation. The material was removed to obtain a resin (-A). Resin (-A)
The softening point (ring and ball method) is 93℃, the bromine number (ASTMD-
1158-57T) was 18, and the hue was 1 or less (Gardner color number, according to ASTMD-1554-58T). 40 parts by weight of Resin-A thus obtained, 40 parts by weight of ethylene-vinyl acetate copolymer (manufactured by Mitsui Polychemical Co., Ltd.: Evaflex #220, vinyl acetate content 28% MI150), paraffin wax (Nippon Oil Co., Ltd.) Product: Melting point 145〓) 20 parts by weight approx.
Table 3 shows the results of melt-mixing at 180°C to prepare and evaluate hot melt compositions. Example 2 Vinylnorbornene per 100 parts by weight of feedstock oil (a)
15 parts by weight and 1.5 parts by weight of p-cresol were added, and 0.8 wt% of boron trifluoride phenolate was added.
After polymerization at ℃ for 3 hours, the same treatment as in Example 1 was carried out to obtain resin (-A). The resin (-A) had a softening point of 87°C, a bromine number of 22, and a hue of 1. Next, a hot melt composition was prepared and evaluated in the same manner as in Example 1. The results are shown in Table 3. Example 3 30 parts by weight of 4-vinyl-1-cyclohexene and 2 parts by weight of phenol were added to 100 parts by weight of raw material oil (a), and 1 part by weight of anhydrous aluminum chloride powder was suspended in 50 parts by weight of toluene. was gradually added, and polymerization and post-treatment were performed in the same manner as in Example 1 to obtain a resin (-A) with a softening point of 90°C, a bromine number of 35, and a hue of 1. Next, a hot melt composition was prepared and evaluated in the same manner as in Example 1. The results are shown in Table 3. Comparative Example 1 15 parts by weight of vinylnorbornene and 2 parts by weight of phenol were added to 100 parts by weight of the cracked oil fraction F in Example 1, and polymerization was carried out under the same conditions as in Example 1, resulting in a softening point of 106°C, a bromine value of 26, A resin (F-1) with hue 4 was obtained, and a hot melt composition was prepared and evaluated in the same manner as in Example 1. Table 3 shows the results. Comparative Example 2 Raw material oil (a) was directly polymerized under the same conditions as in Example 1 to obtain a resin (F-2) with a softening point of 97%, a bromine number of 8, and a hue of 1 or less. Table 3 shows the results of preparing and evaluating hot melt compositions. Comparative Example 3 3 parts by weight of anhydrous aluminum chloride powder suspended in 50 parts by weight of toluene was gradually added to a raw material oil prepared by adding 100 parts by weight of 4-vinyl-1-cyclohexene to 100 parts by weight of raw oil (a). Polymerization and post-treatment were carried out in the same manner as in Example 1 to obtain a resin (F-3) with a softening point of 92°C, a bromine number of 43, and a hue of 1.A hot melt composition was prepared and evaluated in the same manner as in Example 1. Table 3 shows the results.
It was shown to. Comparative Example 4 Rosin WW instead of hydrocarbon resin in Example 1
Table 3 shows the results using F-4 (softening point: 76°C).

【衚】 衚より本発明によるホツトメルト組成物は、
接着性はもずより、䜎枩特性、色盞ずもに優れた
ものであるこずは明癜である。 このこずは本発明による暹脂がホツトメルト組
成物のベヌスポリマヌである゚チレン系共重合物
ずの盞溶性が良奜であるこず、たた衚に瀺した
ように配合物のくもり点が䜎いこずからも明らか
である。 たた本発明に甚いる暹脂の軟化点は甚途に応じ
50〜125℃の広い範囲より遞択できるが、軟化点
がこの範囲を䞋たわるずホツトメルト組成物の軟
化点が䞋がり耐熱性が悪くなり、たた高すぎる堎
合は、盞溶性の䜎䞋を匕き起し、接着性も䜎䞋す
るため、奜たしくは60℃〜120℃の範囲のものが
奜適である。 さらに本発明のホツトメルト組成物に甚いる
EVA等の゚チレン系共重合物の共重合成分含有
量はあたり少なすぎるずやはり盞溶性が䜎䞋し、
接着性も悪くなるため、共重合成分の含有量は10
〜60wt、奜たしくは15〜45wtが奜適であ
る。 たたワツクス成分ずしおは、通垞50℃〜93.3℃
110〓〜200〓の融点を有する石油系ワツク
ス、およびカルナバロりなどの倩然ワツクスが䜿
甚できるが、ポリ゚チレン補造時に副生する䜎分
子量副生ワツクスおよび、各皮の合成ワツクス類
を䜿甚した堎合特に軟化点が高く、たた接着特性
の優れたホツトメルト組成物が埗られる。 詊隓法 (1) 軟化点環状法 JIS −2531による。 (2) 溶融粘床 ブルツクフむヌルド型粘床蚈による。 (3) 接着力 基材アルミ 0.1mmアルミ板間に接着剀局が0.2mmになるよ
うに180℃3minプレスし、20±℃、湿床60
に24hr攟眮埌、テンシロン匕匵り詊隓機で型
はく離を行な぀たはく離速床150mmmin。 (4) 色盞評䟡 配合埌固化させた熱溶融性接着剀の色盞を次
に瀺す刀定芏準で刀定した。 癜色〇 黄色乃至耐色× (5) くもり点 熱溶融性接着剀組成物を詊隓管にずり、
180℃に加熱し透明溶融物ずしたのち宀枩に攟
眮し、癜濁したずきの枩床をくもり点ずした。 (6) 䜎枩特性 熱溶融性接着剀の100瞊×10暪×
厚mmの詊隓片を䜜成し、−10℃においおJIS
−5400屈曲詊隓機でmmの心棒に沿぀お曲
げ、折れるか、あるいは折れないかで刀定し
た。 〇折れない ×折れる
[Table] From Table 3, the hot melt composition according to the present invention is
It is clear that not only adhesive properties but also low-temperature properties and color are excellent. This is clear from the fact that the resin according to the present invention has good compatibility with the ethylene copolymer, which is the base polymer of the hot melt composition, and from the low cloud point of the formulation as shown in Table 3. It is. In addition, the softening point of the resin used in the present invention depends on the application.
It can be selected from a wide range of 50 to 125°C, but if the softening point is below this range, the softening point of the hot melt composition will decrease and the heat resistance will deteriorate, and if it is too high, it will cause a decrease in compatibility. Since adhesiveness also decreases, a temperature range of 60°C to 120°C is preferred. Furthermore, it is used in the hot melt composition of the present invention.
If the copolymerization component content of ethylene-based copolymers such as EVA is too low, the compatibility will decrease,
The content of copolymer components should be 10
~60 wt%, preferably 15-45 wt% is suitable. In addition, as a wax component, it is usually 50℃~93.3℃
Natural waxes such as petroleum waxes with a melting point of (110〓~200〓) and carnauba wax can be used, but low molecular weight waxes produced as by-products during polyethylene production and various synthetic waxes are especially softened. A hot melt composition with a high score and excellent adhesive properties can be obtained. Test method (1) Softening point (ring method) According to JIS K-2531. (2) Melt viscosity Measured using a Bruckfield viscometer. (3) Adhesive strength Base material: Aluminum Press at 180℃ for 3 minutes so that the adhesive layer is 0.2mm between 0.1mm aluminum plates, 20±1℃, humidity 60%
After standing for 24 hours, T-peeling was performed using a Tensilon tensile tester (peeling speed 150 mm/min). (4) Hue evaluation The hue of the hot-melt adhesive that was blended and solidified was evaluated using the following criteria. White: 〇 Yellow to brown: × (5) Cloudy point Place 5 g of the hot-melt adhesive composition in a test tube,
After heating to 180°C to form a transparent melt, it was allowed to stand at room temperature, and the temperature at which it became cloudy was defined as the clouding point. (6) Low-temperature properties Hot-melt adhesive 100 (vertical) x 10 (horizontal) x 2
(thickness) mm test piece was prepared and JIS
It was bent along a 3 mm mandrel using a K-5400 bending tester, and judged whether it broke or not. 〇: Does not break ×: Can break

Claims (1)

【特蚱請求の範囲】  (A) (a) 石油類の熱分解により埗られる分解
油留分のうち145〜220℃の沞点範囲を有する
留分を蒞溜するこずにより埗た共圹ゞオレフ
むン含有量が0.7wt以䞋で共圹ゞオレフむ
ン含有率が以䞋であり、か぀むンデンお
よびそのアルキル誘導䜓の合蚈含有量が2wt
以䞋でむンデン含有率が以䞋であ぀
お、ビニルトル゚ン含有率が60〜90の留分
100重量郚に察しお、 (b) テトラハむドロむンデン、メチルテトラハ
むドロむンデン、ビニルシクロヘキセン、ビ
ニルノルボルネンから遞択された少なくずも
䞀皮を〜50重量郚添加したものを原料油ず
しお、 (c) プノヌル類0.1〜3.0重量郚の存圚䞋でフ
リヌデルクラフツ型觊媒を甚いお重合しお埗
られる軟化点60〜120℃の芳銙族系暹脂ず、 (B) ゚チレン系共重合物を必須成分ずしお含有す
るホツトメルト組成物。  前蚘゚チレン系共重合物100重量郚に察し
お、前蚘芳銙族系暹脂20〜300重量郚、ワツクス
類〜500重量郚を含有するこずを特城ずする特
蚱請求の範囲第項蚘茉のホツトメルト組成物。
[Scope of Claims] 1 (A) (a) A conjugated diolefin content obtained by distilling a fraction having a boiling point range of 145 to 220°C among cracked oil fractions obtained by thermal decomposition of petroleum. The conjugated diolefin content is 3% or less, and the total content of indene and its alkyl derivatives is 2wt% or less.
% or less, the indene content is 8% or less, and the vinyl toluene content is 60 to 90%.
Based on 100 parts by weight, (b) 5 to 50 parts by weight of at least one selected from tetrahydroindene, methyltetrahydroindene, vinylcyclohexene, and vinylnorbornene is added as a raw material oil, (c) 0.1 phenols A hot melt composition containing as essential components an aromatic resin with a softening point of 60 to 120°C obtained by polymerization using a Friedel-Crafts catalyst in the presence of ~3.0 parts by weight, and (B) an ethylene copolymer. thing. 2. The hot melt according to claim 1, which contains 20 to 300 parts by weight of the aromatic resin and 0 to 500 parts by weight of wax based on 100 parts by weight of the ethylene copolymer. Composition.
JP6079979A 1979-05-17 1979-05-17 Hot-melt composition Granted JPS55152771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6079979A JPS55152771A (en) 1979-05-17 1979-05-17 Hot-melt composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6079979A JPS55152771A (en) 1979-05-17 1979-05-17 Hot-melt composition

Publications (2)

Publication Number Publication Date
JPS55152771A JPS55152771A (en) 1980-11-28
JPS6241246B2 true JPS6241246B2 (en) 1987-09-02

Family

ID=13152718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6079979A Granted JPS55152771A (en) 1979-05-17 1979-05-17 Hot-melt composition

Country Status (1)

Country Link
JP (1) JPS55152771A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61138662A (en) * 1984-12-10 1986-06-26 Kanebo N S C Kk Hot-melt type sealing material composition
JP3379448B2 (en) * 1998-09-30 2003-02-24 荒川化孊工業株匏䌚瀟 Production method of hydrogenated C9 petroleum resin and hydrogenated C9 petroleum resin obtained by the production method
JPWO2002062892A1 (en) * 2001-02-02 2004-10-21 出光興産株匏䌚瀟 Resin composition for toner and toner

Also Published As

Publication number Publication date
JPS55152771A (en) 1980-11-28

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