JPH04292684A - Expansive sealing material - Google Patents
Expansive sealing materialInfo
- Publication number
- JPH04292684A JPH04292684A JP5473791A JP5473791A JPH04292684A JP H04292684 A JPH04292684 A JP H04292684A JP 5473791 A JP5473791 A JP 5473791A JP 5473791 A JP5473791 A JP 5473791A JP H04292684 A JPH04292684 A JP H04292684A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- pts
- parts
- vinyl chloride
- chloride 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.)
- Pending
Links
- 239000003566 sealing material Substances 0.000 title claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004014 plasticizer Substances 0.000 claims abstract description 19
- 239000003094 microcapsule Substances 0.000 claims abstract description 17
- 229920001577 copolymer Polymers 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 7
- 239000000565 sealant Substances 0.000 claims description 18
- 238000002156 mixing Methods 0.000 abstract description 23
- 238000007789 sealing Methods 0.000 abstract description 14
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 9
- 230000002265 prevention Effects 0.000 abstract description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 4
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 abstract description 2
- 239000011256 inorganic filler Substances 0.000 abstract description 2
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 2
- 229920000647 polyepoxide Polymers 0.000 abstract description 2
- 239000013008 thixotropic agent Substances 0.000 abstract description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004604 Blowing Agent Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000036314 physical performance Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gasket Seals (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、自動車の例えばシーリ
ング材のヘラかきとりの対象部位であって、見栄えが重
視されるドアオープニング部分やトランクリッドオープ
ニング部分をシールするのに利用され、より具体的には
フロントピラーアッパーとロアーとの合わせ目、フロン
トピラーロアーとサイドシルとの合わせ目、センターピ
ラーとサイドシルとの合わせ目、リヤフェンダーとサイ
ドシルとの合わせ目、リヤウエストパネルとリヤフェン
ダーとの合わせ目、リヤフェンダーとリヤコーナーフェ
ンダーとの合わせ目、リヤコーナーフェンダーとリヤパ
ネルとの合わせ目、ルーフサイドレールとセンターピラ
ーとの合わせ目、等をシールするのに利用される膨脹シ
ーリング材に関するものである。[Industrial Application Field] The present invention is used to seal door openings and trunk lid openings where appearance is important, such as parts of automobiles where sealing material is scraped off with a spatula. The joint between the front pillar upper and lower, the joint between the front pillar lower and the side sill, the joint between the center pillar and the side sill, the joint between the rear fender and the side sill, and the joint between the rear waist panel and the rear fender. This invention relates to an expansion sealing material used to seal the joint between a rear fender and a rear corner fender, the joint between a rear corner fender and a rear panel, the joint between a roof side rail and a center pillar, etc.
【０００２】0002
【従来の技術】従来、車体の水密を主目的として、自動
車ボディのパネルの合わせ目にはシーリング材が塗布さ
れている。また、自動車ボディのパネルの合わせ目は、
パネルエッジにバリが多く発生しており、エッジ錆が多
発しやすい部位でもあることから、このようなエッジ錆
が発生しないようにシーリング材を塗布することにより
防錆をはかることも行われている。2. Description of the Related Art Conventionally, a sealing material has been applied to the joints of automobile body panels with the main purpose of making the car body watertight. In addition, the joints of automobile body panels are
Many burrs occur on panel edges, which are also areas where edge rust is likely to occur frequently, so rust prevention is also carried out by applying a sealant to prevent such edge rust from occurring. .
【０００３】そして、このようなシーリング材において
は、パネルエッジ部にシーリング材を完全に塗布し、修
正を行わない”盛り切り型”のシーリング手法などが採
用されていた。[0003] With regard to such sealing materials, a "fill-in type" sealing method has been adopted in which the sealing material is completely applied to the edge of the panel and no correction is made.
【０００４】0004
【発明が解決しようとする課題】しかしながら、このよ
うな従来のシーリング材を用いた水密や防錆の手法では
、外観の見栄えが低下したものとなることがあり、また
、ドア等の水密がとくに問題となる部位には”盛り切り
型”のシール手法をとりがたいという問題点があった。[Problems to be Solved by the Invention] However, such conventional methods of watertightness and rust prevention using sealing materials sometimes result in a deteriorated appearance, and in addition, the watertightness of doors, etc. There was a problem in that it was difficult to apply a "filling type" sealing method to the problem area.
【０００５】さらに、ドアオープニング部分やトランク
リッドオープニング部分などの合わせ目は、見栄え向上
のために、ヘラを用いてシーリング材を水密に必要な量
だけ残してかき取るようにしており、これもエッジ錆の
発生をきたす原因となることがないとはいえないという
問題点があり、これらの問題点を解決することが課題と
なっていた。[0005]Furthermore, in order to improve the appearance of the seams such as door openings and trunk lid openings, a spatula is used to scrape off the sealant, leaving only the amount necessary to make it watertight. There is a problem in that it cannot be said that it does not cause rust to occur, and it has been a challenge to solve these problems.
【０００６】[0006]
【発明の目的】本発明は、このような従来の課題にかん
がみてなされたもので、自動車ボディのパネルの合わせ
目等におけるシーリングの際の作業性が著しく良好であ
ると共に、シーリング後の外観の見栄えが非常に良好で
あり、かつまた振動やねじれ等を繰り返し受けたときで
もシーリング材に割れを生じにくいため水密性および防
錆性を長期にわたって良好なものに維持することが可能
である膨脹シーリング材を提供することを目的としてい
る。[Object of the Invention] The present invention has been made in view of the above-mentioned problems of the prior art, and it improves workability when sealing the joints of automobile body panels, and improves the appearance after sealing. Expandable sealing that has a very good appearance and is resistant to cracking even when subjected to repeated vibrations or twisting, making it possible to maintain good watertightness and rust prevention over a long period of time. The purpose is to provide materials.
【０００７】[0007]
【課題を解決するための手段】本発明に係わる膨脹シー
リング材は、ペースト型と酢酸ビニル共重合型を併用し
た塩化ビニル樹脂を３０〜５０重量部と、充填剤を１５
〜２５重量部と、可塑剤を２５〜４０重量部と、膨脹マ
イクロカプセルを１〜４重量部を必須成分として配合し
、必要に応じて、密着剤，安定剤，発泡防止剤，ぬれ性
改良剤等を選択成分として配合した構成としたことを特
徴としており、より望ましくは、塩化ビニル樹脂中の酢
酸ビニル共重合型が１９重量部以上であり、また、可塑
剤中の高分子系が２０〜３０重量部である構成としたこ
とを特徴としている。[Means for Solving the Problems] The expanded sealing material according to the present invention contains 30 to 50 parts by weight of vinyl chloride resin, which is a combination of a paste type and a vinyl acetate copolymer type, and 15 parts by weight of a filler.
~25 parts by weight, 25 to 40 parts by weight of a plasticizer, and 1 to 4 parts by weight of expanded microcapsules are blended as essential ingredients, and if necessary, adhesion agents, stabilizers, antifoaming agents, and wettability improvers are added. It is characterized by having a structure in which the vinyl acetate copolymer type in the vinyl chloride resin is blended as a selective component, and more preferably the vinyl acetate copolymer type in the vinyl chloride resin is 19 parts by weight or more, and the polymer type in the plasticizer is 20 parts by weight. It is characterized by having a structure in which the amount is 30 parts by weight.
【０００８】本発明に係わる膨脹シーリング材において
、ペースト型と酢酸ビニル共重合型を併用した塩化ビニ
ル樹脂の配合量を３０〜５０重量部としているが、この
場合、３０重量部よりも少ないと、膨脹マイクロカプセ
ルを添加することによる物性の低下を補うことができず
、シーリング材の伸び率や強度などの物理性能が不十分
なものとなるので好ましくなく、５０重量部を超えると
液粘性が過大となって、シーリング時に使用される材料
圧送装置からの吐出性が低下するので好ましくない。In the expansion sealing material according to the present invention, the blending amount of the vinyl chloride resin, which is a combination of a paste type and a vinyl acetate copolymer type, is 30 to 50 parts by weight, but in this case, if it is less than 30 parts by weight, Addition of expanded microcapsules cannot compensate for the decrease in physical properties, resulting in insufficient physical properties such as elongation and strength of the sealant, which is undesirable, and if it exceeds 50 parts by weight, the liquid viscosity becomes excessive. This is undesirable because the discharge performance from the material pumping device used during sealing decreases.
【０００９】そして、ペースト型と酢酸ビニル共重合型
を併用するにあたって、酢酸ビニル共重合型の配合量が
少ないと伸び率や強度などの物理性能が低下する傾向と
なるため、酢酸ビニル共重合型は１９重量部以上とする
ことがより望ましい。When using the paste type and the vinyl acetate copolymer type together, physical properties such as elongation and strength tend to decrease if the amount of the vinyl acetate copolymer type is small, so the vinyl acetate copolymer type It is more desirable that the amount is 19 parts by weight or more.
【００１０】また、充填剤は、膨脹マイクロカプセルを
添加することによるシーリング材の物理性能の低下を防
止するために添加するが、１５重量部よりも少ないとシ
ーリング時におけるシーリング材の流れ，シーリング材
を供給する際の吐出性が問題となり、２５重量部を超え
ると伸び率や抗張力などの物性に劣ったものになるので
好ましくない。[0010]Furthermore, the filler is added to prevent deterioration of the physical performance of the sealant due to the addition of expanded microcapsules, but if the filler is less than 15 parts by weight, the flow of the sealant during sealing, Dischargeability becomes a problem when supplying, and if it exceeds 25 parts by weight, physical properties such as elongation and tensile strength become poor, which is not preferable.
【００１１】さらに、可塑剤は、シーリングの際の作業
性と物理性質の両方を良好なものとするために添加する
が、２５重量部よりも少ないと伸び率および吐出性が低
下したものとなり、４０重量部を超えると粘性が低くな
って流れが問題となるので好ましくない。Furthermore, the plasticizer is added to improve both the workability and physical properties during sealing, but if the amount is less than 25 parts by weight, the elongation rate and ejection properties will decrease. If it exceeds 40 parts by weight, the viscosity becomes low and flow becomes a problem, which is not preferable.
【００１２】そして、シーリング材の伸び率を良好なも
のに維持するためには可塑剤中の高分子系が２０〜３０
重量部であるようにすることがより望ましく、２０重量
部よりも少ないと伸び率が不十分なものになる傾向とな
り、３０重量部を超えると抗張力が不十分なものになる
傾向となる。[0012] In order to maintain the elongation rate of the sealant at a good level, the polymeric system in the plasticizer must have a content of 20 to 30%.
It is more desirable that the amount is less than 20 parts by weight, and if it is less than 20 parts by weight, the elongation rate tends to be insufficient, and if it exceeds 30 parts by weight, the tensile strength tends to be insufficient.
【００１３】さらにまた、膨脹マイクロカプセルは、焼
付け時の膨脹率を１３０％以上、より望ましくは１５０
％以上に確保するために１〜４重量部の配合割合とする
ことが望ましく、１重量部未満では１３０％以上の膨脹
率を得ることができなくなり、４重量部を超えると物理
性能の低下をきたすので好ましくない。Furthermore, the expanded microcapsules have an expansion rate of 130% or more during baking, more preferably 150% or more.
% or more, it is desirable to use a blending ratio of 1 to 4 parts by weight. If it is less than 1 part by weight, it will not be possible to obtain an expansion rate of 130% or more, and if it exceeds 4 parts by weight, the physical performance will deteriorate. This is not desirable as it may cause damage.
【００１４】このような膨脹シーリング材を用いてパネ
ルの合わせ目部分等のシーリングを行うにあたっては、
パネルの電着塗装を行ったのちシーリング材を塗布し、
ヘラによるかき取りを行ったのち中塗をし、次いで例え
ば１４０℃×３０分の焼付けを行う。[0014] When sealing the seams of panels using such an expanded sealant,
After electrocoating the panel, apply a sealant,
After scraping with a spatula, an intermediate coat is applied, and then baking is performed, for example, at 140° C. for 30 minutes.
【００１５】この焼付けにおいて、焼付け前では、図１
に示すように、シーリング材の樹脂である塩化ビニル樹
脂１は、粒子として可塑剤２の中に浮いた状態となって
おり、塩化ビニル樹脂１の間に膨脹マイクロカプセル３
が分散した状態となっている。In this baking process, before baking, the image shown in FIG.
As shown in the figure, vinyl chloride resin 1, which is a sealant resin, is floating in the plasticizer 2 as particles, and expanded microcapsules 3 are formed between the vinyl chloride resin 1.
are in a dispersed state.
【００１６】次いで、焼付け中では、図２に示すように
、塩化ビニル樹脂１がゲル化し始めると共に、膨脹マイ
クロカプセル３は内部の溶剤の蒸気圧により膨脹を始め
る。Next, during baking, as shown in FIG. 2, the vinyl chloride resin 1 begins to gel, and the expanded microcapsules 3 begin to expand due to the vapor pressure of the solvent inside.
【００１７】そして、焼付け完了後では、図３に示すよ
うに、シーリング材は完全にゲル化したものとなり、マ
イクロカプセル３は膨脹したときの形状を保持すること
ができるものとなる。After the baking is completed, as shown in FIG. 3, the sealing material becomes completely gelled, and the microcapsules 3 can maintain their expanded shape.
【００１８】[0018]
【実施例】表１，表２に示すような配合割合で、塩化ビ
ニル樹脂と、安定剤，発泡防止剤，ぬれ性改良剤を含む
薬品と、充填剤と、発泡剤（膨脹マイクロカプセル）と
、可塑剤と、密着成分とを配合したシーリング材を用意
した。[Example] Vinyl chloride resin, chemicals containing stabilizers, anti-foaming agents, and wettability improvers, fillers, and blowing agents (expanded microcapsules) were mixed in the proportions shown in Tables 1 and 2. A sealing material containing a plasticizer and an adhesion component was prepared.
【００１９】このとき、塩化ビニル樹脂のうち、ペース
ト型と酢酸ビニル共重合型（コーポリマー）との配合割
合は同じく表に示すとおりとし、また、充填剤として用
いられる無機充填剤（炭酸カルシウムを使用）と植物系
，脂肪系，シリカ系のチキソ剤との配合割合は同じく表
に示すとおりとし、さらに、可塑剤は重合系と汎用系と
高分子系（フタル酸ジオクチルを使用）の配合割合を同
じく表に示すとおりとし、さらにまた、膨張マイクロカ
プセルとして塩化ビニリデン−アクリロニトリル共重合
体よりなる外壁（外径１０〜２０μｍ）の中に低沸点炭
化水素を封入したもの（８０℃で軟化し、１４０℃で体
積が約７０倍に膨脹）を用い、さらにまた密着成分とし
てはエポキシ樹脂を用いた。At this time, the blending ratio of the paste type and vinyl acetate copolymer type (copolymer) of the vinyl chloride resin is as shown in the table, and the inorganic filler (calcium carbonate) used as a filler is The blending ratios of plant-based, fat-based, and silica-based thixotropic agents are as shown in the table, and the blending ratios of plasticizers are polymeric, general-purpose, and polymeric (using dioctyl phthalate). were as shown in the table, and furthermore, expanded microcapsules were prepared by encapsulating a low-boiling hydrocarbon in the outer wall (outer diameter 10 to 20 μm) made of vinylidene chloride-acrylonitrile copolymer (softened at 80°C, (expanded to about 70 times its volume at 140° C.) was used, and an epoxy resin was used as an adhesive component.
【００２０】そして、各シーリング材を用いてパネルの
合わせ目部分のシーリングを行い、このシーリング時の
作業性およびシーリング後の評価を行った。これらの結
果を同じく表に示す。[0020]The seams of the panels were sealed using each sealant, and the workability during sealing and the evaluation after sealing were conducted. These results are also shown in the table.
【００２１】なお、表において、膨脹率は約１３０％未
満の場合にパネルの合わせ目でのエッジ部をカバーする
ことができなくなって防錆性能上において問題があるの
で、１３０％以上であるものが望ましく、エッジ部が十
分にカバーされるようにするためには１５０％以上の膨
脹率とするのがより望ましい。[0021] In the table, if the expansion rate is less than about 130%, it will not be possible to cover the edges at the joints of the panels, causing a problem in terms of rust prevention performance. It is desirable that the expansion rate be 150% or more in order to ensure that the edge portions are sufficiently covered.
【００２２】また、塗装外観は膨脹マイクロカプセルに
よってシーリング材表面の平滑性が損なわれず、したが
って上塗塗装を行ったときに平滑面を得ることができて
外観が良好であるものを○印で示し、伸び率が２３０％
未満であったり、抗張力が約１５ｋｇ／ｃｍ２ 未満で
あったりした場合には、悪路等における走行中の振動や
ねじれなどによって車体パネルの合わせ目にあるシーリ
ング材に割れが発生して、水洩れや防錆性能の低下を生
じるので、伸び率は２５０％以上、抗張力は１５ｋｇ／
ｃｍ２ 以上であるものが望ましい。[0022] Also, regarding the painted appearance, the smoothness of the surface of the sealant is not impaired by the expanded microcapsules, and therefore, when a top coat is applied, a smooth surface can be obtained and the appearance is good. Growth rate is 230%
If the tensile strength is less than approximately 15 kg/cm2, cracks may occur in the sealing material at the joints of the car body panels due to vibration or twisting while driving on rough roads, resulting in water leakage. The elongation rate should be 250% or more and the tensile strength should be 15 kg/
cm2 or more is desirable.
【００２３】さらに、作業性のうち流れが逆Ｌ５０ｍｍ
よりも大きい場合には、パネルの垂直面にシーリング材
を塗布したときに、焼付け硬化工程に達する以前にシー
リング材の自重により脱落してしまうので、逆Ｌ５０ｍ
ｍ以下のものを○印で示し、吐出性はシーリング材の粘
度が約１３００００ｃｐｓ以上の場合にシーリング材圧
送装置からの供給が困難となるので、それよりも粘度が
低いものを○印で示した。Furthermore, in terms of workability, the flow is reversed L50mm
If the sealant is applied to the vertical surface of the panel, it will fall off due to its own weight before it reaches the baking hardening process, so the reverse L50m
For dischargeability, if the viscosity of the sealant is about 130,000 cps or more, it becomes difficult to supply it from the sealant pumping device, so those with a lower viscosity are marked with an ○. .
【００２４】[0024]
【表１】[Table 1]
【００２５】[0025]
【表２】[Table 2]
【００２６】表１，表２に示したように、本発明の要件
を満足する基準となる左端に示す実施例の場合には、い
ずれの特性も良好なものとなっていることが認められた
。[0026] As shown in Tables 1 and 2, in the case of the example shown on the left, which serves as a standard that satisfies the requirements of the present invention, it was found that all properties were good. .
【００２７】一方、上記基準となる実施例において、塩
化ビニル樹脂の配合割合を変化させたＡ，Ａ´グループ
のうち、塩化ビニル樹脂の合計の配合割合を本発明範囲
外にまで拡大して変化させたＡグループにおいては、同
Ａグループの各欄に示した結果より明らかなように、塩
化ビニル樹脂の配合割合が３０重量部よりも少ないＮｏ
．１，２では伸びおよび抗張力が低いものとなっており
、反対に塩化ビニル樹脂の配合割合が５０重量部よりも
多いＮｏ．５では液粘性が大きくなりすぎて吐出性に問
題が生じていることが明らかであるのに対して、本発明
を満足するＮｏ．３，４では良好な特性を示しているこ
とが認められた。On the other hand, in the above reference example, among groups A and A′ in which the blending ratio of vinyl chloride resin was changed, the total blending ratio of vinyl chloride resin was expanded to outside the scope of the present invention. As is clear from the results shown in each column of the same group, No.
．． No. 1 and No. 2 have low elongation and tensile strength, while No. 1, on the other hand, has a blending ratio of vinyl chloride resin of more than 50 parts by weight. In No. 5, it is clear that the liquid viscosity becomes too large and there is a problem in ejection performance, whereas in No. 5, which satisfies the present invention. It was recognized that samples 3 and 4 exhibited good characteristics.
【００２８】他方、塩化ビニル樹脂の配合割合は本発明
範囲内としているものの、ペースト型と酢酸ビニル共重
合型の配合割合を変化させたＡ´グループにおいては、
同Ａ´グループの各欄に示した結果より明らかなように
、酢酸ビニル共重合型の配合割合が１９重量部よりも少
ないＮｏ．６では伸びおよび抗張力がやや低目の値とな
っていることが認められ、酢酸ビニル共重合型の配合割
合が１９重量部以上であるＮｏ．７，８，９では良好な
特性を示していることが認められた。On the other hand, although the blending ratio of vinyl chloride resin was within the range of the present invention, in the A' group where the blending ratio of paste type and vinyl acetate copolymer type was changed,
As is clear from the results shown in each column of the same A' group, No. 1 has a blending ratio of vinyl acetate copolymer type less than 19 parts by weight. It is recognized that the elongation and tensile strength of No. 6 are slightly low, and No. 6 has a vinyl acetate copolymer type blending ratio of 19 parts by weight or more. It was observed that samples No. 7, 8, and 9 exhibited good characteristics.
【００２９】次に、上記基準となる実施例において、充
填剤の配合割合を変化させたＢグループにおいては、同
Ｂグループの各欄に示した結果より明らかなように、充
填剤の配合割合が１５重量部よりも少ないＮｏ．１０，
１１では流れや吐出性に問題を生ずることが認められ、
反対に充填剤の配合割合が２５重量部よりも多いＮｏ．
１４では伸びおよび抗張力が低下したものとなることが
認められるのに対して、本発明を満足するＮｏ．１２，
１３では良好な特性を示していることが認められた。Next, in the above reference example, in Group B, in which the blending ratio of the filler was changed, as is clear from the results shown in each column of the B group, the blending ratio of the filler was changed. No. less than 15 parts by weight. 10,
No. 11 was found to cause problems with flow and discharge properties,
On the other hand, No. 1 with a filler content of more than 25 parts by weight.
No. 14 was found to have lower elongation and tensile strength, whereas No. 14, which satisfies the present invention, had lower elongation and tensile strength. 12,
It was recognized that No. 13 exhibited good characteristics.
【００３０】さらに、上記基準となる実施例において、
可塑剤の配合割合を変化させたＣ，Ｃ´グループのうち
、可塑剤の合計の配合割合を本発明範囲外まで拡大して
変化させたＣグループにおいては、同Ｃグループの各欄
に示した結果より明らかなように、可塑剤の配合割合が
２５重量部よりも少ないＮｏ．１５では伸びが小さいと
共に粘度が高く吐出性に問題を生じていることが認めら
れ、反対に可塑剤の配合割合が４０重量部よりも多いＮ
ｏ．１８では粘度が低くなって流れが問題となると共に
抗張力が低いものとなっていることが認められるのに対
して、本発明を満足するＮｏ．１６，１７では良好な特
性を示していることが認められた。Furthermore, in the above reference example,
Among the C and C' groups in which the blending ratio of plasticizers was changed, in the C group in which the total blending ratio of plasticizers was changed to extend beyond the scope of the present invention, the following values were shown in each column of the same C group. As is clear from the results, No. 1 with a plasticizer blending ratio of less than 25 parts by weight. In case of No. 15, it was observed that the elongation was small and the viscosity was high, causing a problem in ejectability.
o. In No. 18, the viscosity is low, causing flow problems and low tensile strength, whereas No. It was observed that samples Nos. 16 and 17 exhibited good characteristics.
【００３１】他方、可塑剤の配合割合は本発明範囲内と
しているものの、汎用系と高分子系の配合割合を変化さ
せたＣ´グループにおいては、同Ｃ´グループの各欄に
示した結果より明らかなように、高分子系の配合割合が
２０重量部よりも少ないＮｏ．１９，２０では伸びが低
めの値となっていることが認められ、反対に３０重量部
よりも多いＮｏ．２２，２３では抗張力が低めの値とな
っていることが認められるのに対して、高分子系の配合
割合が２０〜３０重量部であるＮｏ．２１では良好な特
性を示していることが認められた。On the other hand, although the blending ratio of the plasticizer was within the range of the present invention, in the C' group where the blending ratio of the general-purpose type and the polymer type was changed, the results shown in each column of the C' group showed that As is clear, in No. 1, the blending ratio of the polymer system is less than 20 parts by weight. It was observed that the elongation of No. 19 and No. 20 was relatively low, and on the contrary, the elongation of No. 19 and No. 20 was relatively low. In No. 22 and No. 23, it is recognized that the tensile strength is a lower value, whereas in No. No. 2, the blending ratio of the polymer system is 20 to 30 parts by weight. It was observed that No. 21 exhibited good characteristics.
【００３２】さらにまた、上記基準となる実施例におい
て、発泡剤である膨脹マイクロカプセルの配合割合を変
化させたＤグループにおいては、同Ｄグループの各欄に
示した結果より明らかなように、発泡剤の配合割合が１
重量部よりも少ないＮｏ．２４では膨脹率が低いものに
なっていることが認められ、反対に発泡剤の配合割合が
４重量部よりも多いＮｏ，２７では伸びおよび抗張力が
低い値を示すと共に、膨脹したマイクロカプセルによっ
て表面の平滑性が損われることにより塗装外観が凹凸の
ある劣ったものになっていることが認められるのに対し
て、本発明を満足するＮｏ．２５，２６では良好な特性
を示していることが認められた。Furthermore, in the above reference example, in Group D, in which the blending ratio of expanded microcapsules as a foaming agent was changed, as is clear from the results shown in each column of Group D, foaming was achieved. The compounding ratio of the agent is 1
No. less than parts by weight. It was observed that No. 24 had a low expansion rate, while No. 27, in which the proportion of the blowing agent was more than 4 parts by weight, showed low elongation and tensile strength, and the expanded microcapsules caused a low expansion rate. It is recognized that the smoothness of No. 1 is impaired, resulting in an inferior painted appearance with unevenness. It was observed that samples Nos. 25 and 26 exhibited good characteristics.
【００３３】[0033]
【発明の効果】本発明に係わる膨脹シーリング材は、ペ
ースト型と酢酸ビニル共重合型を併用した塩化ビニル樹
脂と、充填剤と、可塑剤と、膨脹マイクロカプセルを必
須成分として特定割合配合してなるものであるから、自
動車ボディのパネルの合わせ目等におけるシーリングの
際の作業性が著しく良好であると共に、シーリング後の
外観の見栄えが非常に良好なものとなり、かつまた振動
やねじれ等を繰り返し受けたときでもシーリング材に割
れを生じにくいため水密性および防錆性を長期にわたっ
て良好なものに維持することが可能であるという著しく
優れた効果がもたらされる。[Effects of the Invention] The expanded sealing material according to the present invention is a combination of paste-type and vinyl acetate copolymer-type vinyl chloride resins, fillers, plasticizers, and expanded microcapsules in specific proportions as essential components. As a result, the workability when sealing the joints of automobile body panels is extremely good, the appearance after sealing is very good, and it also prevents repeated vibrations, twisting, etc. Since the sealing material does not easily crack even when subjected to damage, it is possible to maintain good watertightness and rust prevention over a long period of time, which is an extremely excellent effect.
【図１】シーリング材を塗布した後焼付け前の状態を示
す模型的説明図である。FIG. 1 is a schematic explanatory diagram showing a state after applying a sealant and before baking.
【図２】シーリング材を塗布した後焼付け中の状態を示
す模型的説明図である。FIG. 2 is a schematic explanatory view showing a state during baking after applying a sealant.
【図３】シーリング材の焼付け完了後の状態を示す模型
的説明図である。FIG. 3 is a schematic explanatory diagram showing the state after baking of the sealant is completed.
１ 塩化ビニル樹脂 ２ 可塑剤 ３ 膨脹マイクロカプセル 1. Vinyl chloride resin 2 Plasticizer 3. Expanded microcapsules
Claims (3)
用した塩化ビニル樹脂を３０〜５０重量部と、充填剤を
１５〜２５重量部と、可塑剤を２５〜４０重量部と、膨
脹マイクロカプセルを１〜４重量部を必須成分として配
合したことを特徴とする膨脹シーリング材。Claim 1: 30 to 50 parts by weight of vinyl chloride resin of both paste type and vinyl acetate copolymer type, 15 to 25 parts by weight of filler, 25 to 40 parts by weight of plasticizer, and expanded microcapsules. An expanded sealant characterized by containing 1 to 4 parts by weight of as an essential component.
型が１９重量部以上である請求項１記載の膨脹シーリン
グ材。2. The expanded sealing material according to claim 1, wherein the vinyl acetate copolymer type in the vinyl chloride resin is 19 parts by weight or more.
部である請求項１または２記載の膨脹シーリング材。3. The expanded sealing material according to claim 1, wherein the plasticizer contains 20 to 30 parts by weight of the polymer system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5473791A JPH04292684A (en) | 1991-03-19 | 1991-03-19 | Expansive sealing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5473791A JPH04292684A (en) | 1991-03-19 | 1991-03-19 | Expansive sealing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04292684A true JPH04292684A (en) | 1992-10-16 |
Family
ID=12979101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5473791A Pending JPH04292684A (en) | 1991-03-19 | 1991-03-19 | Expansive sealing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04292684A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5753156A (en) * | 1993-12-28 | 1998-05-19 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Process for producing non-scattering hollow plastic balloons |
| WO2000075254A1 (en) * | 1999-06-02 | 2000-12-14 | Peter Stewart Bain | Adhesive composition comprising thermoexpandable microcapsules |
| JP2003055646A (en) * | 2001-08-10 | 2003-02-26 | Sekisui Chem Co Ltd | Sealant for automobile body |
| KR100810124B1 (en) * | 2006-09-07 | 2008-03-06 | 헨켈코리아 유한회사 | Sealant composition |
| US7371300B2 (en) | 1999-06-02 | 2008-05-13 | De-Bonding Limited | Adhesive composition comprising thermoexpandable microcapsules |
-
1991
- 1991-03-19 JP JP5473791A patent/JPH04292684A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5753156A (en) * | 1993-12-28 | 1998-05-19 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Process for producing non-scattering hollow plastic balloons |
| WO2000075254A1 (en) * | 1999-06-02 | 2000-12-14 | Peter Stewart Bain | Adhesive composition comprising thermoexpandable microcapsules |
| GB2365431A (en) * | 1999-06-02 | 2002-02-20 | Peter Stewart Bain | Adhesive composition comprising thermoexpandable microcapsules |
| GB2365431B (en) * | 1999-06-02 | 2003-12-17 | Peter Stewart Bain | Adhesive composition comprising thermoexpandable microcapsules |
| US7371300B2 (en) | 1999-06-02 | 2008-05-13 | De-Bonding Limited | Adhesive composition comprising thermoexpandable microcapsules |
| JP2003055646A (en) * | 2001-08-10 | 2003-02-26 | Sekisui Chem Co Ltd | Sealant for automobile body |
| KR100810124B1 (en) * | 2006-09-07 | 2008-03-06 | 헨켈코리아 유한회사 | Sealant composition |
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