JP3671282B2

JP3671282B2 - Forming method of airtight members for building materials

Info

Publication number: JP3671282B2
Application number: JP28896996A
Authority: JP
Inventors: 直久宮川; 勝久加藤
Original assignee: トキワケミカル工業株式会社; 株式会社システムテクニカル
Priority date: 1996-09-25
Filing date: 1996-09-25
Publication date: 2005-07-13
Anticipated expiration: 2016-09-25
Also published as: JPH10100220A

Description

【０００１】
【産業上の利用分野】
本発明は、各種建築の建具等の建材に使用する摺動面の分離気密等の向上の役目を果たすために圧接する気密部材であつて、その主たる目的とする所は、気密部材の摩擦抵抗を少なく、且つ分離と接合を円滑にするために気密部材の表面に、押し出し成形によつて摩擦抵抗の少ない薄保護被膜を被着することを目的とする建材用気密部材の成形方法に関するものである。
【０００２】
【従来の技術】
従来この種の建材等に用いる気密部材は、ゴム、合成樹脂、プラスチツク等で形成されているが、緩衝性、弾力性及び分離性等の役目を果たすために当然に柔軟性が充分に必要である。また、強固で破損することのない構成材料を使用するのが一般的な事柄である。
そこで、近年この気密部材の構成材料として、ポリオレフイン系樹脂の熱可塑性エラストマーを主体として形成されたものがある。
【０００３】
【発明が解決しようとする課題】
上記従来の気熱部材に使用する構成材料に使用するポリオレフイン系樹脂の熱可塑性エラストマーによれば、その性質上、硬度の範囲が大変に狭いため、通常の柔軟性を必要とする場合には、発泡体を以て成形する必要がある。然し、この樹脂の発泡体の場合は、押し出し成形工程が大変に難しい欠点と、製品が最良でないと云う欠点がある。
本発明は従来の欠点を解決したものであり、その主たる目的とする所は、気密部材の主体となる構成材料として、スチレン系熱可塑性エラストマーの樹脂を使用し、その露出する表面の接触部片に、摩擦抵抗の少ない粗面部を形成する薄保護被膜を押し出し成形を以て同時に一体的に成形し、表面が円滑で強靱化された気密部材を成形することにある、
【０００４】
【課題を解決するための手段】
上記目的を達成するために、本発明の気密部材の成形方法によれば、その主たる構成材料を、スチレン系熱可塑性エラストマー樹脂の合成樹脂を以て押し出し成形する。この気密部材には、取着部片と接触部片とを長手方向に形成してある。次いで、該接触部片には、建材部との接触面に薄保護被膜を一体に被着してある。該薄保護被膜の構成材料として、低粘度で高流動性のポリオレフイン系樹脂のベース材料に対して、このベース材料より高粘度及び低流動性の大小各種の粉末又は粒子を混合した混合合成樹脂を使用し、取着部片と接触部片との軟質合成樹脂と同時に押し出し成型機で成形し、その後一台の金型ダイス内部で一体に重合することで、該薄保護被膜の表面に熱と押圧力によつて凸部及び凹部よりなる粗面部を表面に形成して、摩擦抵抗を減少するものである。
また、該気密部材の取着部片にも、該薄保護被膜を被着成形することによつて、強固で装着を容易とするものである。
【０００５】
【作用】
上記の如く、押し出し成形された気密部材は、スチレン系熱可塑性エラストマーを一方の押し出し成型機に投入する。薄保護被膜を形成する低粘度の高流動性のポリオレフイン系樹脂をベース材料として、大小各種の粉末又は粒子からなる合成樹脂粘度の低流動性のポリオレフイン系樹脂の添加材料を混合した合成樹脂をもう一台の押し出し成型機に注入し、二台の押し出し成型機を使用して、同時に押し出し成形を実施して一台の金型ダイスの内部で押し出し重合する。この時、気密部材のスチレン系熱可塑性エラストマーの樹脂と、薄保護被膜のベース材料の低粘度のポリオレフイン系は、相溶性があるため一体的に重合される。
更に、該薄保護被膜の添加材の高粘度のポリオレフイン系樹脂の大小各種の粉末又は粒子は、粘度が高く、流動性が低いため、表面に細かい凹部と凸部による粗面部を形成することができる。また、高粘度のポリオレフイン系樹脂は、粘度が高く、流動性が低いため、溶融状態にあつてもベース材のように、流動性が高くならず、ある程度の粉末又は粒子の形状を維持したままで押し出し成形されて表面に細かい凹部及び凸部の粗面部を確実に形成するものである。
【０００６】
【実施例】
次に、本発明の実施例を図面について説明すると、サッシ、ドアーの接合個所に使用する気密、緩衝、分離等の役目を果たす長手方向に押し出し成形される気密部材（１）は、図１に示す如く、長手方向の取着部片（２）と、該取着部片（２）に隣接する接触部片（３）とを各々スチレン系熱可塑性エラストマーの軟質合成樹脂を以て一体的に押し出し成形されている。
該接触部片（３）には、表面の一部又は全部に薄保護被膜（４）を被着する。この薄保護被膜（４）の構成材料としては、低粘度で高流動性のポリオレフィン系樹脂をベース材とし、このベースの材料より高粘度で低流動性の大小各種の粉末又は粒子からなるポリオレフィン系樹脂を混合した混合合成樹脂を使用する。
次いで、該取着部片（２）と該接触部片（３）との該軟質合成樹脂と、該薄保護被膜（４）の該混合合成樹脂とを各々押し出し成型機で同時に押し出し成形する。その後一台の金型ダイスの内部を通過して一体に重合成形することにより、該薄保護被膜（４）の表面に熱による凸部（６）と凹部（７）とで不揃いの粗面部（８）を容易に形成するものである。
また、図１に示す薄保護被膜（５）は、接触部片（３）以外の該取着部片（２）の表面にも、前記同様に成形された薄保護被膜（５）による該粗面部（８）を形成したものである。図２、図３に示すものは、気密部材（１）を引き戸（１０）の戸当たり面に装着して使用した場合と、鏡板（１２）を設けた縦框（１１）との召合わせ部に装着した使用状態を示したものである。
【０００７】
図４の他の実施例は、スチレン系熱可塑性エラストマーよりなる取着部片（１３）に隣接して突条の接触部片（１４）を一体に形成し、その接触部片（１４）の表面の一部又は全部に薄保護被膜（１６）を被着する。この薄保護被膜（１６）は、その構成材料を先に述べた如く、低粘度で高流動性のポリオレフイン系樹脂をベース材とし、このベースより高粘度で低流動性の大小各種の粉末又は粒子からなるポリオレフイン系樹脂を混合した混合合成樹脂を使用し、取着部片（１３）と接触部片（１４）との軟質合成樹脂と、該薄保護被膜（１６）の混合合成樹脂とを各々の押し出し成型機で同時に押し出し成形し、その後一台の金型ダイス内部で一体に重合成形することで薄保護被膜（１６）の表面に、熱による凸部（１７）と凹部（１８）とを形成した粗面部（１９）を形成する。なお、該接触部片（１４）以外の取着部片（１３）の表面外周にも、前記同様に成形された薄保護被膜（１５）を被着して、粗面部（１９）を形成するものである。
【０００８】
次に、図５及び図６に示すものは、図４に示す気密部材（１）を各種の縦框（２０）に挿入装着した使用状態を示すものである。また、図４に示す気密部材（１）を硝子板（２４）を有する下框（２１）の取着縁（２２）に挿入装着して使用した状態を示すもので、（２３）は窓等の下枠を示したものである。
【０００９】
なお、薄保護被膜（４）及び（５）と薄保護被膜（１５）及び（１６）の合成樹脂の材料は、ベース材として、メルトフローレート０．５ｇ以上／１０分（ＡＳＴＭＤ１２３８１９０℃）の低粘度ポリエチレンを使用する。
また、大小各種の粉末又は粒子からなる添加物としては、メルトフローレート０．１ｇ以下／１０分（ＡＳＴＭＤ１２３８１９０℃）の高粘度ポリエチレンを使用する。
【００１０】
更に、スチレン系熱可塑性エラストマーとしては、スチレン・プロツク・コポリマー系の熱可塑性エラストマーに高温でのゴム弾性を付与した、動的架橋熱可塑性エラストマーを使用する。例えば、理研ビニル株式会社の商品名「アクテイマー」を使用する。
【００１１】
【表１】

本発明の気密部材の本体として使用したスチレン系熱可塑性エラストマーと、従来のポリオレフイン系熱可塑性エラストマーとの比較表である。
ポリオレフイン系樹脂の熱可塑性エラストマーでは、硬度ＨｓＡが５０度乃至９０度しかないが、スチレン系熱可塑性エラストマーでは、ＨｓＡが２０度乃至８０度まで可能である。
また、着熱部材の接触部片は、用途上、通常柔軟性が要求されている。従つて、ポリオレフイン系樹脂に通常柔軟性を必要とする場合は、発泡体にする必要性があるが、樹脂の発泡体の作業の場合には、成形が非常に難しい欠点と、品質が大変に落ちる欠点等がある。
【００１２】
【発明の効果】
本発明の気密部材によれば、各種のドアー、サツシ窓等に装着する取着部材の表面に、摩擦抵抗が小さい薄保護被膜を被着してあるので、建具、サツシ等に装着する気密部材を敏速、簡単確実に滑り込ませて挿着できる便利な効果と、摩擦抵抗が小さく滑性があるため、従来のポリオレフイン系樹脂の熱可塑性エラストマーのような発泡体とするものでは、工程が非常に困難となると共に、品質が著しく悪化することなく長期間に亘つて強固な結合状態で使用できる効果がある。更に、該気密部材の接触部片の表面に薄保護被膜を被着したことにより、各種の建材等の召し合わせ部及び引き違い建具の接合部とに、凸部及び凹部による粗面部を形成し、開閉時の接触及び分離の容易さと、気密を充分に維持することができる効果がある。
そして、気密部材の構成材料であるスチレン系熱可塑性エラストマー樹脂と、ドアー及びサツシと接触する接触部片に重合形成された薄保護被膜は、摩擦抵抗が小さいベース材料である低粘度で高流動性のポリオレフイン系樹脂とは互いに相溶性があるため、押し出し成形時の熱と圧力によつて一体的に強固となり、且つ、薄保護被膜の厚さを自由に調整できる効果がある。また、該薄保護被膜の構成材料として、低粘度で高流動性のポリオレフイン系樹脂をベース材料とし、このベース材料より高粘度で低流動性の大小各種の粉末又は粒子からなるポリオレフイン系樹脂を混合した混合合成樹脂と、気密部材の取着部片と接触部片との軟質合成樹脂とを各々押し出し成型機で同時に押し出し成形し、その後一台の金型ダイス内部で一体に重合することによつて成形時の熱と圧力で薄保護被膜の表面に、細かい凹部と凸部による粗面部を確実容易に形成できる効果がある。また、薄保護被膜の表面に形成された不揃いの粗面部は、建材、サツシ等の接合、分離等の開閉操作を円滑軽快にすると共に、接触状態の気密性を充分に達成する効果がある。
【図面の簡単な説明】
【図１】本発明の気密部材の斜面図である。
【図２】同じく本発明を引き戸の戸当たりに装着した横断平面図である。
【図３】同じく本発明を縦框の側壁に装着した横断面図である。
【図４】本発明の他の実施例の気密部材の斜面図である。
【図５】同じく本発明をサツシ縦框に装着した横断平面図である。
【図６】本発明をサツシの下框に装着した縦断側面図である。
【符号の説明】
１気密部材
２取着部片
３接触部片
４薄保護被膜
５薄保護被膜
６凸部
７凹部
８粗面部
１３取着部片
１４接触部片
１５薄保護被膜
１６薄保護被膜
１９粗面部[0001]
[Industrial application fields]
The present invention is an airtight member that is in pressure contact for the purpose of improving the separation airtightness of the sliding surface used for building materials such as various building fixtures, the main purpose of which is the friction resistance of the airtight member In addition, the present invention relates to a method for forming an airtight member for building materials, which is intended to apply a thin protective film with low frictional resistance to the surface of the airtight member by extrusion to reduce separation and joining smoothly. is there.
[0002]
[Prior art]
Conventionally, airtight members used for this kind of building materials have been formed of rubber, synthetic resin, plastics, etc., but naturally sufficient flexibility is necessary to fulfill the role of buffering, elasticity and separation. is there. In addition, it is a general matter to use a constituent material that is strong and does not break.
Therefore, in recent years, as a constituent material of this hermetic member, there is one formed mainly of a thermoplastic elastomer of a polyolefin resin.
[0003]
[Problems to be solved by the invention]
According to the thermoplastic elastomer of the polyolefin resin used for the constituent material used in the conventional air heat member, because of its nature, the range of hardness is very narrow, when normal flexibility is required, It is necessary to mold with a foam. However, this resin foam has the disadvantage that the extrusion process is very difficult and the product is not the best.
The present invention solves the conventional drawbacks, and the main object of the present invention is to use a styrene thermoplastic elastomer resin as the main constituent material of the airtight member, and to contact the exposed surface contact piece. In addition, a thin protective film that forms a rough surface portion with a low frictional resistance is formed simultaneously and integrally by extrusion, and an airtight member having a smooth and tough surface is formed.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, according to the method for molding an airtight member of the present invention, the main constituent material is extruded using a synthetic resin of a styrene-based thermoplastic elastomer resin. In this airtight member, an attachment part piece and a contact part piece are formed in the longitudinal direction. Next, a thin protective coating is integrally applied to the contact piece on the contact surface with the building material part. As a constituent material of the thin protective coating, a mixed synthetic resin obtained by mixing low-viscosity and high-flowability polyolefin resin base materials with various types of powders or particles having higher and lower viscosity than the base material. Use and mold it with an extrusion molding machine at the same time as the soft synthetic resin of the attachment piece and the contact piece, and then polymerize integrally inside one mold die, heat on the surface of the thin protective coating A rough surface portion including a convex portion and a concave portion is formed on the surface by the pressing force to reduce the frictional resistance.
Further, the thin protective film is also applied to the attachment portion piece of the airtight member to make it strong and easy to install.
[0005]
[Action]
As described above, the extruded hermetic member is charged with styrene thermoplastic elastomer in one of the extrusion molding machines. Using a low-viscosity, high-flowability polyolefin resin that forms a thin protective coating as a base material, a synthetic resin that is a mixture of small and large powders and particles of synthetic resin viscosity and low-flowability polyolefin resin is added. It is injected into one extrusion molding machine, and two extrusion molding machines are used to carry out extrusion molding at the same time to perform extrusion polymerization inside one mold die. At this time, since the resin of the styrenic thermoplastic elastomer of the airtight member and the low-viscosity polyolefin of the base material of the thin protective coating are compatible, they are integrally polymerized.
Furthermore, the various powders or particles of the high-viscosity polyolefin resin as the additive for the thin protective film have a high viscosity and low fluidity, and therefore may form a rough surface portion with fine concave and convex portions on the surface. it can. In addition, high-viscosity polyolefin resin has high viscosity and low fluidity, so even in the molten state, it does not have high fluidity and maintains a certain shape of powder or particles even in the base material. Is formed by extrusion to ensure the formation of fine concave and convex rough surface portions on the surface.
[0006]
【Example】
Next, an embodiment of the present invention will be described with reference to the drawings. A hermetic member (1) extruded in the longitudinal direction and serving as a hermetic, shock absorbing, separating, etc. used at a joining portion of a sash and a door is shown in FIG. As shown, the longitudinal attachment piece (2) and the contact piece (3) adjacent to the attachment piece (2) are each integrally extruded with a soft synthetic resin of styrenic thermoplastic elastomer. Has been.
A thin protective coating (4) is applied to part or all of the surface of the contact piece (3). As a constituent material of the thin protective coating (4), a polyolefin resin comprising a low-viscosity and high-flowability polyolefin resin as a base material, and various types of powders or particles having a higher viscosity and lower flowability than the base material. A mixed synthetic resin mixed with a resin is used.
Next, the soft synthetic resin of the attachment piece (2) and the contact piece (3) and the mixed synthetic resin of the thin protective film (4) are simultaneously extruded by an extrusion molding machine. Then, by passing through the inside of one die and integrally polymerizing and molding, the surface of the thin protective coating (4) has a rough surface portion that is uneven between the convex portion (6) and the concave portion (7) due to heat ( 8) is easily formed.
Further, the thin protective film (5) shown in FIG. 1 is formed on the surface of the attachment piece (2) other than the contact piece (3) by the thin protective film (5) formed in the same manner as described above. A surface portion (8) is formed. FIG. 2 and FIG. 3 show a summing part between the case where the airtight member (1) is used on the sliding surface of the sliding door (10) and the vertical gutter (11) provided with the end plate (12). It shows the state of use attached to.
[0007]
In another embodiment of FIG. 4, a contact piece (14) of a protrusion is integrally formed adjacent to an attachment piece (13) made of a styrenic thermoplastic elastomer, and the contact piece (14) A thin protective coating (16) is applied to part or all of the surface. As described above, the thin protective coating (16) has a low viscosity and high fluidity polyolefin resin as a base material, and various kinds of powders or particles having a viscosity higher than that of the base and a low fluidity. A mixed synthetic resin mixed with a polyolefin-based resin comprising a soft synthetic resin of an attachment piece (13) and a contact piece (14), and a mixed synthetic resin of the thin protective film (16), respectively. The extrusion (17) and the depression (18) due to heat are formed on the surface of the thin protective coating (16) by extrusion molding at the same time with an extrusion molding machine, and then integrally polymerizing inside a single die. The formed rough surface portion (19) is formed. A thin protective film (15) formed in the same manner as described above is also applied to the outer periphery of the surface of the attachment part (13) other than the contact part piece (14) to form a rough surface part (19). Is.
[0008]
Next, what is shown in FIG.5 and FIG.6 shows the use condition which inserted and attached the airtight member (1) shown in FIG. 4 to various vertical rods (20). 4 shows a state in which the airtight member (1) shown in FIG. 4 is inserted and mounted on the attachment edge (22) of the lower eyelid (21) having the glass plate (24). (23) is a window or the like. The bottom frame of is shown.
[0009]
In addition, the material of the synthetic resin of the thin protective coatings (4) and (5) and the thin protective coatings (15) and (16) is, as a base material, a melt flow rate of 0.5 g or more / 10 minutes (ASTM D1238 190 ° C.) Use low viscosity polyethylene.
Moreover, as an additive consisting of various kinds of powders or particles, high-viscosity polyethylene having a melt flow rate of 0.1 g or less / 10 minutes (ASTM D1238 190 ° C.) is used.
[0010]
Further, as the styrenic thermoplastic elastomer, a dynamically crosslinked thermoplastic elastomer obtained by imparting rubber elasticity at high temperature to a styrene / block / copolymer thermoplastic elastomer is used. For example, the trade name “Actamer” of Riken Vinyl Corporation is used.
[0011]
[Table 1]

It is a comparison table of the styrene thermoplastic elastomer used as the main body of the airtight member of the present invention and the conventional polyolefin thermoplastic elastomer.
Polyolefin resin thermoplastic elastomers have a hardness HsA of only 50 to 90 degrees, whereas styrene thermoplastic elastomers can have an HsA of 20 to 80 degrees.
Further, the contact piece of the heat receiving member is usually required to be flexible for use. Therefore, when the polyolefin resin usually requires flexibility, it is necessary to make it into a foam. However, in the case of resin foam work, it is very difficult to mold and the quality is extremely high. There are some drawbacks.
[0012]
【The invention's effect】
According to the airtight member of the present invention, since a thin protective film with low frictional resistance is applied to the surface of the attachment member attached to various doors, sash windows, etc., the airtight member attached to joinery, sash, etc. With a convenient effect that allows quick and easy slipping and insertion, and a low frictional resistance and slipperiness, it is very difficult to make a foam like a thermoplastic elastomer of conventional polyolefin resin. In addition to being difficult, there is an effect that it can be used in a strong bonded state for a long period of time without significantly deteriorating the quality. Furthermore, by applying a thin protective film on the surface of the contact portion piece of the airtight member, a rough surface portion by a convex portion and a concave portion is formed on the summing portion of various building materials and the joint portion of the sliding joinery. There is an effect that the contact and separation at the time of opening and closing can be easily maintained and airtightness can be sufficiently maintained.
The styrene-based thermoplastic elastomer resin, which is a constituent material of the airtight member, and the thin protective film formed by polymerization on the contact piece in contact with the door and the sash are low viscosity and high fluidity, which is a base material with low frictional resistance. Since the polyolefin resin is compatible with each other, it is strengthened integrally by heat and pressure during extrusion, and the thickness of the thin protective film can be freely adjusted. In addition, as a constituent material of the thin protective coating, a low-viscosity and high-flowability polyolefin resin is used as a base material, and mixed with a polyolefin resin composed of various types of powders or particles having a higher viscosity and lower flowability than this base material. The mixed synthetic resin and the soft synthetic resin of the attachment part and the contact part of the airtight member are extruded simultaneously with an extrusion molding machine, and then integrally polymerized inside a single die. Thus, there is an effect that a rough surface portion having fine concave portions and convex portions can be easily and reliably formed on the surface of the thin protective film by heat and pressure during molding. In addition, the uneven rough surface portion formed on the surface of the thin protective film has an effect of smoothly opening and closing operations such as joining and separation of building materials and sashes and sufficiently achieving airtightness in a contact state.
[Brief description of the drawings]
FIG. 1 is a perspective view of an airtight member of the present invention.
FIG. 2 is a cross-sectional plan view in which the present invention is similarly mounted on a sliding door.
FIG. 3 is a cross-sectional view in which the present invention is similarly mounted on the side wall of a vertical fence.
FIG. 4 is a perspective view of an airtight member according to another embodiment of the present invention.
FIG. 5 is a cross-sectional plan view in which the present invention is similarly mounted on a sash downspout.
FIG. 6 is a longitudinal side view of the present invention mounted on the lower arm of a sash.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Airtight member 2 Attachment part piece 3 Contact part piece 4 Thin protective film 5 Thin protective film 6 Convex part 7 Recessed part 8 Rough surface part 13 Attachment part piece 14 Contact part piece 15 Thin protective film 16 Thin protective film 19 Rough surface part

Claims

The airtight member (1) extruded and molded in the longitudinal direction to be fitted and attached to the joint of the sash and door is a building material in which the attachment piece (2) and the contact piece (3) of various shapes are integrated. In a method for forming an airtight member for use, a soft synthetic material having a hardness of Hs JIS A 20 degrees to Hs JIS A 60 degrees with a styrene-based thermoplastic elastomer as a constituent material of the attachment piece (2) and the contact piece (3) The contact piece (3) is made of a low-viscosity, high-fluidity polyolefin-based resin as a base material as a constituent material for all or part of the thin protective coating (4). Using a mixed synthetic resin mixed with a polyolefin resin composed of various powders or particles having a higher viscosity and lower fluidity than the material of the material, and the mixed synthesis on the surface of the soft synthetic resin with the contact piece (3) The thin protective film made of resin (4 ) And the thin protective coating (5) of the attachment piece (2) are connected and extruded simultaneously by an extrusion molding machine, and then passed through the inside of a single die and integrally molded. By doing so, the surface of the thin protective coating (4) of the contact piece (3) and the thin protective coating (5) of the attachment piece (2) is heated to form convex portions (6) and concave portions ( 7. A method for forming an airtight member for building materials, comprising forming an irregular rough surface portion (8) comprising 7) .