JP2001270052A - Co-extruded item and window molding - Google Patents
Co-extruded item and window moldingInfo
- Publication number
- JP2001270052A JP2001270052A JP2000083893A JP2000083893A JP2001270052A JP 2001270052 A JP2001270052 A JP 2001270052A JP 2000083893 A JP2000083893 A JP 2000083893A JP 2000083893 A JP2000083893 A JP 2000083893A JP 2001270052 A JP2001270052 A JP 2001270052A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl chloride
- resin composition
- chloride resin
- molding
- vinyl
- 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
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、優れた耐候性や耐
熱変形性を付与し、圧縮永久歪を小さくした軟質樹脂組
成物を使用した共押出成形品に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a co-extruded article using a soft resin composition having excellent weather resistance and heat deformation resistance and reduced compression set.
【０００２】[0002]
【従来の技術】従来より、可塑剤を配合した軟質塩化ビ
ニル系樹脂は、窓枠等の建材用ガスケット、ベルトモー
ル、ウィンドウモール及びサイドモール等の自動車用ガ
スケット等の材料として広く使われている。しかし、こ
の塩化ビニル系樹脂は加硫ゴムに比べ高温時の形状保形
性や圧縮永久歪が著しく劣るという欠点があった。2. Description of the Related Art Conventionally, a soft vinyl chloride resin containing a plasticizer has been widely used as a material for gaskets for building materials such as window frames, and gaskets for automobiles such as belt moldings, window moldings and side moldings. . However, this vinyl chloride resin has a drawback that the shape retention at high temperatures and compression set are significantly inferior to vulcanized rubber.
【０００３】これらの欠点の改良方法としては、例えば
平均重合度２５００〜３８００の高重合度塩化ビニル系
樹脂を使用する方法が挙げられる。この方法を使用する
と、例えば、ＪＩＳ Ｋ６２６２（７０℃×２２Ｈｒ）
に定める圧縮永久歪を、従来品の６０〜７０％から、５
０％近くへと低減させることができる。しかし、この方
法により得られた塩化ビニル系樹脂は、更に低く良好な
圧縮永久歪特性を要求される、モールの材料としては不
充分であった。この欠点を改良するために更に高重合度
化した塩化ビニル系樹脂を使用しても、更なる圧縮永久
歪の低減は図れず、塩化ビニル系樹脂の成形性が悪くな
るという欠点があった。[0003] As a method of improving these disadvantages, for example, there is a method of using a high polymerization degree vinyl chloride resin having an average polymerization degree of 2500 to 3800. When this method is used, for example, JIS K6262 (70 ° C. × 22 hours)
Compression set from 60-70% of the conventional product to 5%
It can be reduced to nearly 0%. However, the vinyl chloride resin obtained by this method is insufficient as a material for moldings, which is required to have even lower and good compression set characteristics. Even if a vinyl chloride resin having a higher degree of polymerization is used to improve this disadvantage, the compression set cannot be further reduced, and the moldability of the vinyl chloride resin deteriorates.
【０００４】この欠点を改良するために、塩化ビニル系
樹脂及び可塑剤からなる軟質塩化ビニル系樹脂に部分架
橋ニトリルゴムを添加し、圧縮永久歪特性を改良する方
法が一般的に用いられている。In order to improve this drawback, a method is generally used in which a partially crosslinked nitrile rubber is added to a soft vinyl chloride resin comprising a vinyl chloride resin and a plasticizer to improve the compression set characteristics. .
【０００５】又、圧縮永久歪特性をより一層改良するた
めに、塩化ビニル系樹脂、可塑剤及び部分架橋ニトリル
ゴムからなる軟質塩化ビニル系樹脂に架橋剤を添加し、
成形加工時に部分架橋ニトリルゴムを動的に架橋させる
ことにより、圧縮永久歪特性をより一層改良する方法が
提案されている。In order to further improve the compression set characteristics, a crosslinking agent is added to a soft vinyl chloride resin comprising a vinyl chloride resin, a plasticizer and a partially crosslinked nitrile rubber,
There has been proposed a method for further improving the compression set characteristics by dynamically cross-linking partially cross-linked nitrile rubber during molding.
【０００６】[0006]
【発明が解決しようとする課題】しかし、これらの方法
により得られた塩化ビニル系樹脂は、高温時の形状保持
性や圧縮永久歪特性が確かに改良されるけれども、成形
加工時の溶融粘度が高い、成形性が劣る、更には樹脂組
成物中に含まれる部分架橋ニトリルゴムに起因する屋外
暴露による色調変化が大きい、物性の低下が大きく耐候
性が劣るおそれがあるという課題があった。However, although the vinyl chloride resin obtained by these methods can certainly improve the shape retention at high temperatures and the compression set characteristics, the melt viscosity at the time of molding processing is low. There are problems that the resin composition is high, the moldability is inferior, the color tone is largely changed by exposure to the outdoors due to the partially cross-linked nitrile rubber contained in the resin composition, the physical properties are greatly reduced, and the weather resistance is inferior.
【０００７】本発明は、塩化ビニル系樹脂の成形加工性
や耐候性を低下させることなく、高温時の形状保形性や
圧縮永久歪特性を改良した樹脂組成物を提供することを
目的とする。An object of the present invention is to provide a resin composition having improved shape retention at high temperatures and improved compression set without deteriorating the moldability and weatherability of a vinyl chloride resin. .
【０００８】[0008]
【課題を解決するための手段】即ち本発明は、塩化ビニ
ル系樹脂、アクリル系ゴム、及び可塑剤を含有してなる
軟質樹脂組成物と、硬質樹脂組成物とを共押出してなる
共押出成形品であり、塩化ビニル系樹脂の平均重合度が
８００〜４０００である該共押出成形品であり、さら
に、充填剤を含有してなる該共押出成形品であり、充填
剤が炭酸カルシウム及び／又はタルクである該共押出成
形品であり、アクリル系ゴムがコア−シェル型構造を有
する該共押出成形品である。そして、該共押出成形品か
らなるウインドウモールである。That is, the present invention relates to a coextrusion molding method comprising coextruding a soft resin composition containing a vinyl chloride resin, an acrylic rubber, and a plasticizer, and a hard resin composition. A co-extruded product having an average degree of polymerization of a vinyl chloride resin of 800 to 4000, further comprising a filler, wherein the filler is calcium carbonate and / or Or talc, wherein the acrylic rubber has a core-shell type structure. And it is a window molding consisting of the co-extruded product.
【０００９】[0009]
【発明の実施の形態】以下本発明を詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
【００１０】本発明に用いられる塩化ビニル系樹脂とし
ては、塩化ビニルと、それに共重合可能なビニル化合物
との混合物を、懸濁重合法、塊状重合法、微細懸濁重合
法又は乳化重合法等の通常の方法によって重合した樹脂
組成物、並びに、エチレン−酢酸ビニル共重合体、エチ
レン−アクリル酸エチル共重合体又は塩素化ポリエチレ
ン等に塩化ビニルをグラフト共重合した樹脂組成物等が
挙げられる。又、塩素化塩素ビニル系樹脂を用いてもよ
い。As the vinyl chloride resin used in the present invention, a mixture of vinyl chloride and a vinyl compound copolymerizable therewith can be prepared by a suspension polymerization method, a bulk polymerization method, a fine suspension polymerization method or an emulsion polymerization method. And a resin composition obtained by graft copolymerization of vinyl chloride with ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, chlorinated polyethylene, or the like. Further, a chlorinated vinyl chloride resin may be used.
【００１１】前記塩化ビニルと共重合可能なビニル化合
物としては、酢酸ビニルやプロピオン酸ビニル等のビニ
ルエステル類、メチルアクリレートやブチルアクリレー
ト等のアクリル酸エステル類、メチルメタクリレートや
エチルメタクリレート等のメタクリル酸エステル類、ブ
チルマレートやジエチルマレート等のマレイン酸エステ
ル類、ジブチルフマレートやジエチルフマレート等のフ
マル酸エステル類、ビニルメチルエーテル、ビニルブチ
ルエーテル及びビニルオクチルエーテル等のビニルエー
テル類、アクリロニトリルやメタクリロニトリル等のシ
アン化ビニル類、エチレン、プロピレンやスチレン等の
α−オレフィン類、塩化ビニリデンや臭化ビニル等の塩
化ビニル以外のハロゲン化ビニリデンやハロゲン化ビニ
ル類、並びに、ジアリルフタレート等のフタル酸エステ
ル類が挙げられる。これらのビニル化合物は、塩化ビニ
ル系樹脂の構成成分中３０質量％以下が好ましく、２０
質量％以下がより好ましい。Examples of the vinyl compound copolymerizable with vinyl chloride include vinyl esters such as vinyl acetate and vinyl propionate, acrylates such as methyl acrylate and butyl acrylate, and methacrylates such as methyl methacrylate and ethyl methacrylate. , Maleic esters such as butyl malate and diethyl malate, fumaric esters such as dibutyl fumarate and diethyl fumarate, vinyl ethers such as vinyl methyl ether, vinyl butyl ether and vinyl octyl ether, and acrylonitrile and methacrylonitrile. Vinyl cyanides, α-olefins such as ethylene, propylene and styrene, vinylidene halides and vinyl halides other than vinyl chloride such as vinylidene chloride and vinyl bromide, and di- Phthalic acid esters such as Rirufutareto like. The content of these vinyl compounds is preferably 30% by mass or less in the components of the vinyl chloride resin.
% By mass or less is more preferable.
【００１２】これらの塩化ビニル系樹脂の平均重合度
は、ＪＩＳ Ｋ６７２１により測定する平均重合度（以
下重合度と称す）が８００〜４０００であることが好ま
しく、１３００〜３８００がより好ましく、１７００〜
２５００が最も好ましい。重合度が８００未満だと硬質
樹脂組成物との共押出成形時、軟質樹脂組成物の溶融粘
度が低下し、硬質樹脂組成物との熱融着性が劣るおそれ
があり、４０００を越えると得られた樹脂組成物の成形
加工時の溶融粘度が著しく高くなり、加工性が悪くなる
おそれがある。The average degree of polymerization of these vinyl chloride resins is preferably from 800 to 4000, more preferably from 1300 to 3800, more preferably from 1700 to 3800, as measured by JIS K6721.
2500 is most preferred. When the degree of polymerization is less than 800, the melt viscosity of the soft resin composition may decrease during co-extrusion molding with the hard resin composition, and the heat-fusibility with the hard resin composition may be inferior. There is a possibility that the melt viscosity of the obtained resin composition at the time of molding processing becomes extremely high and the processability is deteriorated.
【００１３】本発明に用いられるアクリル系ゴムの中で
は、圧縮永久歪特性や耐候性の点で、コア材と、このコ
ア材の表面を覆うシェル材とからなるコア−シェル型構
造を有するアクリル系ゴムが好ましい。Among the acrylic rubbers used in the present invention, an acrylic having a core-shell type structure comprising a core material and a shell material covering the surface of the core material in terms of compression set characteristics and weather resistance. A system rubber is preferred.
【００１４】コア材とは、ブチルアクリレートを主成分
として、ブチルアクリレートと反応性が等しく、２個以
上の二重結合を有する単量体、例えばジビニルベンゼン
等の芳香族ジビニル単量体やブチレングリコールジアク
リレート等により架橋が施されたものをいう。The core material is a monomer having butyl acrylate as a main component and having the same reactivity as butyl acrylate and having two or more double bonds, for example, an aromatic divinyl monomer such as divinylbenzene or butylene glycol. It refers to one crosslinked with diacrylate or the like.
【００１５】シェル材は、塩化ビニル系樹脂との相溶性
に優れる単量体を最低１個以上含む構造が好ましい。塩
化ビニル系樹脂との相溶性に優れるシェル材としては、
ポリメタクリル酸メチルやポリメタクリル酸エチル等の
ポリメタクリル酸エステル類及びポリカプロラクトン等
のポリエステル類、ポリエステル系ポリウレタン、エチ
レン−酢酸ビニル共重合体及びスチレン−アクリロニト
リル共重合体等の樹脂組成物が挙げられる。The shell material preferably has a structure containing at least one monomer having excellent compatibility with the vinyl chloride resin. As a shell material with excellent compatibility with vinyl chloride resin,
Polymethacrylates such as polymethyl methacrylate and polyethyl methacrylate; polyesters such as polycaprolactone; polyester-based polyurethanes; resin compositions such as ethylene-vinyl acetate copolymer and styrene-acrylonitrile copolymer; .
【００１６】コア−シェル型構造を有するアクリル系ゴ
ムとしては、Ｐ７３９５（ＧｏｏｄＹｅａｒ社製）等が
挙げられる。Examples of the acrylic rubber having a core-shell type structure include P7395 (manufactured by GoodYear).
【００１７】アクリル系ゴムの使用量は、塩化ビニル系
樹脂１００質量部に対して１０〜３００質量部が好まし
く、２０〜２００質量部がより好ましい。１０質量部未
満だと圧縮永久歪特性や耐候性が劣るおそれがあり、３
００質量部を越えると成形加工時の溶融粘度が著しく高
くなり、加工性が悪くなるおそれがある。The amount of the acrylic rubber used is preferably from 10 to 300 parts by mass, more preferably from 20 to 200 parts by mass, per 100 parts by mass of the vinyl chloride resin. If the amount is less than 10 parts by mass, compression set characteristics and weather resistance may be inferior.
If the amount exceeds 00 parts by mass, the melt viscosity at the time of molding becomes extremely high, and the workability may be deteriorated.
【００１８】本発明に用いられる可塑剤としては、特に
限定されるものではなく、従来の軟質塩化ビニル系樹脂
に使われるものを使用できる。可塑剤の中では、ジ−２
−エチルヘキシルフタレートやジブチルフタレート等の
フタル酸エステル類、ジ−２−エチルヘキシルアジペー
ト等のアジピン酸エステル類、ジブチルセバケート等の
セバシン酸エステル、トリ−２−エチルヘキシルトリメ
リテート等のトリメリット酸エステル及びエポキシ化大
豆油等のエポキシ系化合物からなる群のうちの１種又は
２種以上が好ましい。The plasticizer used in the present invention is not particularly limited, and those used in conventional soft vinyl chloride resins can be used. Among the plasticizers, di-2
Phthalic acid esters such as -ethylhexyl phthalate and dibutyl phthalate; adipic acid esters such as di-2-ethylhexyl adipate; sebacic acid esters such as dibutyl sebacate; trimellitic acid esters such as tri-2-ethylhexyl trimellitate; One or more of the group consisting of epoxy compounds such as epoxidized soybean oil is preferred.
【００１９】可塑剤の使用量は、製品に要求される硬
さ、可撓性、物性及び成形加工性の点で、塩化ビニル系
樹脂１００質量部に対し２０〜２００質量部が好まし
く、３０〜１５０質量部がより好ましい。２０質量部未
満だと柔軟性を付与しにくく、圧縮永久歪が大きく、加
工性が悪くなるおそれがあり、２００質量部を越えると
樹脂組成物中に可塑剤を吸収しにくく、成形品から可塑
剤が滲み出て、形状保持性や成形加工性が悪くなるおそ
れがある。The amount of the plasticizer to be used is preferably 20 to 200 parts by mass, and more preferably 30 to 200 parts by mass with respect to 100 parts by mass of the vinyl chloride resin in terms of hardness, flexibility, physical properties and moldability required for the product. 150 parts by mass is more preferred. If the amount is less than 20 parts by mass, it is difficult to impart flexibility, the compression set is large, and the processability may be deteriorated. If the amount is more than 200 parts by mass, the plasticizer is hardly absorbed in the resin composition, and There is a possibility that the agent may exude and the shape retention and molding processability may deteriorate.
【００２０】本発明では、製品に要求される硬さ、可撓
性、物性及び成形加工性を満たす点で、充填剤を用いる
ことが好ましい。In the present invention, it is preferable to use a filler from the viewpoint of satisfying hardness, flexibility, physical properties and moldability required for products.
【００２１】本発明に用いられる充填剤としては、炭酸
カルシウム、タルク、シリカ、クレー、水酸化アルミニ
ウム及び酸化アンチモン等が挙げられる。これらの中で
は、軟質樹脂組成物の成形加工時の賦形性を大幅に改善
する点で、炭酸カルシウム及び／又はタルクが好まし
い。The filler used in the present invention includes calcium carbonate, talc, silica, clay, aluminum hydroxide and antimony oxide. Among these, calcium carbonate and / or talc are preferred from the viewpoint of greatly improving the shapeability of the soft resin composition during molding.
【００２２】本発明に用いられる炭酸カルシウムは、重
質炭酸カルシウムや軽質炭酸カルシウムの何れでも良
い。The calcium carbonate used in the present invention may be either heavy calcium carbonate or light calcium carbonate.
【００２３】炭酸カルシウムの平均粒径は特に制限はな
いが、通常、０．０３〜４．０μｍが好ましく、０．０
４〜２．０μｍがより好ましい。０．０３μｍ未満だと
賦形性の付与効果が認められないおそれがあり、４．０
μｍを越えるとは成形品表面が平滑にならず、外観不良
となるおそれがある。The average particle size of the calcium carbonate is not particularly limited, but is usually preferably from 0.03 to 4.0 μm, more preferably from 0.03 to 4.0 μm.
4 to 2.0 μm is more preferred. If it is less than 0.03 μm, the effect of imparting shapeability may not be recognized, and it may be 4.0.
If it exceeds μm, the surface of the molded article may not be smooth and the appearance may be poor.
【００２４】本発明に用いられるタルクは、粘土鉱物の
一種である。The talc used in the present invention is a kind of clay mineral.
【００２５】タルクの平均粒径は特に制限はないが、通
常、０．８〜１２μｍが好ましく、１．０〜９μｍがよ
り好ましく、１．５〜５μｍが最も好ましい。０．８μ
ｍ未満だと変形やソリが大きいおそれがあり、１２μｍ
を越えると表面が平滑にならず、外観不良となるおそれ
がある。The average particle size of talc is not particularly limited, but is generally preferably 0.8 to 12 μm, more preferably 1.0 to 9 μm, and most preferably 1.5 to 5 μm. 0.8μ
If it is less than m, deformation and warping may be large,
If it exceeds, the surface may not be smooth and the appearance may be poor.
【００２６】充填剤の使用量は、塩化ビニル系樹脂１０
０質量部に対し３〜２００質量部が好ましく、５〜１５
０質量部がより好ましい。３質量部未満だと成形品にお
ける細部形状の成形加工性が悪いおそれがあり、２００
質量部を越えると成形品における細部形状の成形加工性
が悪く、成形品表面が平滑にならないおそれがある。The amount of the filler used is 10
3 to 200 parts by mass, preferably 5 to 15 parts by mass, per 0 parts by mass.
0 parts by mass is more preferred. If the amount is less than 3 parts by mass, the molding processability of the detailed shape of the molded product may be poor,
If the amount exceeds the mass part, the moldability of the detailed shape of the molded product is poor, and the surface of the molded product may not be smooth.
【００２７】本発明に用いられる硬質樹脂組成物として
は、硬質塩化ビニル系樹脂、アクリロニトリル−ブタジ
エン−スチレン共重合体（以下ＡＢＳ樹脂と称す）、ア
クリロニトリル−塩素化ポリエチレン−スチレン共重合
体、（メタ）アクリレート−スチレン−アクリロニトリ
ル共重合体及びスチレン−アクリロニトリル共重合体等
が挙げられる。これらの中では、経済性の点で、硬質塩
化ビニル系樹脂及び／又はＡＢＳ樹脂が好ましい。The hard resin composition used in the present invention includes hard vinyl chloride resin, acrylonitrile-butadiene-styrene copolymer (hereinafter referred to as ABS resin), acrylonitrile-chlorinated polyethylene-styrene copolymer, ) Acrylate-styrene-acrylonitrile copolymer and styrene-acrylonitrile copolymer. Among them, a hard vinyl chloride resin and / or an ABS resin are preferable in terms of economy.
【００２８】本発明の各樹脂組成物には、その性能を極
端に低下させない範囲内で、エチレン−酢酸ビニル共重
合体、アクリル系樹脂、塩素化ポリエチレン、ポリウレ
タン及びアクリロニトリル−ブタジエン共重合体等の塩
化ビニル系樹脂との相溶性に優れる熱可塑性樹脂、塩化
ビニル系樹脂に通常添加される三酸化アンチモンやホウ
酸亜鉛に代表される難燃剤、ステアリン酸バリウム、ス
テアリン酸亜鉛及び三塩基性硫酸鉛等の熱安定剤、酸化
防止剤、紫外線吸収剤、滑剤、並びに、着色剤等の各種
添加剤を必要に応じて添加できる。Each of the resin compositions of the present invention includes ethylene-vinyl acetate copolymer, acrylic resin, chlorinated polyethylene, polyurethane, acrylonitrile-butadiene copolymer and the like within a range that does not extremely deteriorate the performance. Thermoplastic resin excellent in compatibility with vinyl chloride resin, flame retardant represented by antimony trioxide and zinc borate usually added to vinyl chloride resin, barium stearate, zinc stearate and tribasic lead sulfate Various additives such as a heat stabilizer, an antioxidant, an ultraviolet absorber, a lubricant, and a colorant can be added as necessary.
【００２９】本発明において各樹脂組成物を構成する各
成分を混合、混練する方法や、得られた樹脂組成物を成
形加工する方法は特に限定されるものではなく、一般的
な混練方法及び成形加工方法を用いることができる。In the present invention, the method of mixing and kneading the components constituting each resin composition and the method of molding and processing the obtained resin composition are not particularly limited, and general kneading methods and molding methods Processing methods can be used.
【００３０】即ち、各成分を、ヘンシェルミキサーやス
ーパーミキサーのような高速ミキサーやリボンブレンダ
ー等の混合機に投入し、例えば１５０℃以下の温度でそ
れぞれの混合機に見合った時間、均一にブレンドする。
得られた混合物をバンバリーミキサー、ミキシングロー
ル及び押出機等といった、通常の塩化ビニル系樹脂の製
造に用いられる混練機を使い、常法により造粒すること
ができる。That is, each component is charged into a mixer such as a high-speed mixer such as a Henschel mixer or a super mixer, or a ribbon blender, and is uniformly blended at a temperature of, for example, 150 ° C. or less for a time appropriate for each mixer. .
The resulting mixture can be granulated by an ordinary method using a kneader such as a Banbury mixer, a mixing roll, and an extruder, which is used for a usual production of a vinyl chloride resin.
【００３１】共押出装置については特に規定しないが、
通常、硬質材料に使用する混練押出装置Ａ、軟質材料に
使用する混練押出装置Ｂを同一の金型Ｃで接合一体化し
て、共押出装置Ｄを得る方法が用いられており、個々の
押出装置Ａ、Ｂの大きさ、単軸、二軸等及び横型、並び
に、竪型装置等の選定は、使用される材料や共押出製品
の形状や寸法により適宜選定されうるものである。Although there is no particular limitation on the co-extrusion apparatus,
Usually, a kneading and extruding apparatus A used for a hard material and a kneading and extruding apparatus B for a soft material are joined and integrated with the same mold C to obtain a co-extrusion apparatus D. The size of A and B, single-screw, twin-screw, horizontal and vertical devices, and the like can be appropriately selected depending on the material used and the shape and dimensions of the co-extruded product.
【００３２】本発明において、表面意匠性等を賦与する
目的で、共押出成形時、表面に塩化ビニル系樹脂組成物
やアクリル樹脂組成物等を多層に共押出してもかまわな
い。In the present invention, for the purpose of imparting surface design and the like, a multi-layer of a vinyl chloride resin composition or an acrylic resin composition may be coextruded on the surface during coextrusion molding.
【００３３】本発明の共押出成形品は耐候性と圧縮永久
歪特性に優れることから、ウェザーストリップ、グラス
ランチャンネル、ウィンドウモール、ベルトモール及び
ドアミラーパッキング等の自動車外装用部材、シフトレ
バーブーツ、サイドブレーキカバー、ヘッドレスト及び
アームレスト等の自動車内装用部材、各種シール材及び
各種ガスケットを含む工業用パッキン材料、ケーブル、
カールコード及びマイクロホンコード等の電線被覆用部
材、並びに、防水用土木シート、止水用土木シート及び
窓枠用グレージング等の建築用部材等に幅広く利用する
ことができる。Since the co-extruded product of the present invention is excellent in weather resistance and compression set characteristics, it is used for automobile exterior members such as weather strip, glass run channel, window molding, belt molding and door mirror packing, shift lever boot, side brake. Automotive interior materials such as covers, headrests and armrests, industrial packing materials including various sealing materials and various gaskets, cables,
It can be widely used for electric wire covering members such as curl cords and microphone cords, as well as architectural members such as waterproof civil engineering sheets, waterproof civil engineering sheets, and window frame glazings.
【００３４】[0034]
【実施例】以下、本発明を実験例により説明する。The present invention will be described below with reference to experimental examples.
【００３５】実験例１ 表１に示す配合の使用原料を７５リットルのヘンシェル
ミキサーに投入した。撹拌混合後、９０ｍ／ｍ単軸押出
機〔池貝鉄工（株）製〕にて混練ペレット化を行い、軟
質樹脂樹脂組成物と硬質樹脂組成物のペレットをそれぞ
れ１５ｋｇを得た。これを使用し次の２台の押出機にて
共押出を行った。 押出機Ａ ６５ｍ／ｍ単軸押出機（池貝鉄工（株）製） 押出機Ｂ ４０ｍ／ｍ竪型単軸押出機（（株）プラスチ
ック工学研究所製） なお、共押出成形品用のダイは、硬質樹脂組成物Ａと軟
質樹脂組成物Ｂの構成となるよう設計されたものを使用
した。Experimental Example 1 Raw materials having the composition shown in Table 1 were charged into a 75-liter Henschel mixer. After stirring and mixing, the mixture was kneaded into pellets using a 90 m / m single screw extruder (manufactured by Ikegai Iron Works Co., Ltd.) to obtain 15 kg of a soft resin resin composition and 15 kg of a hard resin composition pellet. Using this, co-extrusion was performed with the following two extruders. Extruder A 65 m / m single-screw extruder (manufactured by Ikegai Iron Works Co., Ltd.) Extruder B 40 m / m vertical single-screw extruder (manufactured by Plastic Engineering Laboratory Co., Ltd.) And those designed to have the constitution of the hard resin composition A and the soft resin composition B were used.
【００３６】（使用原料） 塩化ビニル系樹脂−１：重合度２０００ アクリル系ゴム−１：Ｇｏｏｄ Ｙｅａｒ（株）製商品
名「サニガムＰ７３９５」、コア−シェル型構造を有す
るもの 可塑剤：市販品、ジ−２−エチルヘキシルフタレート 充填剤−１：市販品、炭酸カルシウム、平均粒径１．８
μｍ 熱安定剤−１：市販品、ステアリン酸バリウム 熱安定剤−２：市販品、ステアリン酸亜鉛 部分架橋ニトリルゴム：部分架橋アクリロニトリル−ブ
タジエン共重合体、ＪＳＲ（株）製商品名「Ｎ２０１」 硬質樹脂組成物：硬質塩化ビニル系樹脂（塩化ビニル系
樹脂と安定剤を含有したもの）(Raw materials) Vinyl chloride resin-1: Degree of polymerization 2,000 Acrylic rubber-1: "Sanigam P7395" (trade name, manufactured by Good Year Co., Ltd.) having a core-shell structure Plasticizer: commercially available product Di-2-ethylhexyl phthalate Filler-1: Commercial product, calcium carbonate, average particle size 1.8
μm Heat stabilizer-1: Commercial product, barium stearate Heat stabilizer-2: Commercial product, zinc stearate Partially crosslinked nitrile rubber: Partially crosslinked acrylonitrile-butadiene copolymer, trade name “N201” manufactured by JSR Corporation Hard Resin composition: Hard vinyl chloride resin (containing vinyl chloride resin and stabilizer)
【００３７】〔試験方法〕 （圧縮永久歪の評価）ＪＩＳ Ｋ６２６２に準拠し、試
験条件７０℃×２２時間で軟質樹脂組成物の圧縮永久歪
の評価を行った。 （耐候性の評価）ＪＩＳ Ｋ６２５１に規定される３号
ダンベルをカーボンアーク式サンシャインウエザオメー
タ（スガ試験機（株）製）を用い、ブラックパネル温度
６３℃、晴１０８分／雨１２分のサイクルで１０００時
間、軟質樹脂組成物に対して暴露し、暴露前後の色調変
化を色差計（カラーコンピュータＳＭ５、スガ試験機
（株）製）を用いて評価した。色差ΔＥはＪＩＳ Ｚ８
７３０により算出した。 （成形加工性の評価）軟質樹脂組成物、硬質樹脂組成物
の押出成形用にそれぞれ４０ｍ／ｍ竪型単軸押出機、６
５ｍ／ｍ単軸押出機を使用し、ダイス温度１７０℃で押
出してウインドウモールを成形し、共押出性の評価を行
った。成形品が平滑で形状の良好なものを○、成形品表
面が平滑ではあるが粗いものを△、成形品の表面に波打
ちが見られ、端部が裂けているものを×とした。 （剥離強度の評価）成形加工性の評価の際に得られた共
押出成形品の軟質樹脂組成物と硬質樹脂組成物との融着
強度を引張試験機（商品名「オートグラフ」）を用い、
１８０°剥離試験で評価した。[Test Method] (Evaluation of Compression Set) The compression set of the soft resin composition was evaluated at 70 ° C. for 22 hours in accordance with JIS K6262. (Evaluation of weather resistance) Using a No. 3 dumbbell specified in JIS K6251 using a carbon arc sunshine weatherometer (manufactured by Suga Test Instruments Co., Ltd.), a black panel temperature of 63 ° C., a cycle of 108 minutes of fine weather and 12 minutes of rain For 1000 hours, and the change in color tone before and after the exposure was evaluated using a color difference meter (Color Computer SM5, manufactured by Suga Test Instruments Co., Ltd.). Color difference ΔE is JIS Z8
730. (Evaluation of molding processability) 40 m / m vertical single-screw extruder for extrusion molding of soft resin composition and hard resin composition, 6
Using a 5 m / m single-screw extruder, extrusion was performed at a die temperature of 170 ° C. to form a window molding, and the co-extrusion property was evaluated. When the molded article was smooth and had a good shape, it was evaluated as ○, when the surface of the molded article was smooth but rough, was evaluated as Δ, and when the surface of the molded article was wavy and the end was torn, it was evaluated as ×. (Evaluation of peeling strength) Using a tensile tester (trade name "Autograph"), the fusion strength between the soft resin composition and the hard resin composition of the co-extruded product obtained at the time of evaluation of moldability was measured. ,
It was evaluated by a 180 ° peel test.
【００３８】[0038]
【表１】 [Table 1]
【００３９】実験例２表２に示す配合の使用原料を使用
したこと以外は、実験例１と同様の条件により目的とす
るものを得、評価を行った。その結果を表２に示す。EXPERIMENTAL EXAMPLE 2 An objective product was obtained and evaluated under the same conditions as in Experimental Example 1, except that the raw materials having the composition shown in Table 2 were used. Table 2 shows the results.
【００４０】（使用原料） 塩化ビニル系樹脂−２：重合度１３００ 塩化ビニル系樹脂−３：重合度１７００ 塩化ビニル系樹脂−４：重合度２５００ 塩化ビニル系樹脂−５：重合度３８００(Raw materials used) Vinyl chloride resin-2: Degree of polymerization 1300 Vinyl chloride resin-3: Degree of polymerization 1700 Vinyl chloride resin-4: Degree of polymerization 2500 Vinyl chloride resin-5: Degree of polymerization 3800
【００４１】[0041]
【表２】 [Table 2]
【００４２】実験例３ 表３に示す配合の使用原料を使用したこと以外は、実験
例１と同様の条件により目的とするものを得、評価を行
った。その結果を表３に示す。Experimental Example 3 An objective substance was obtained and evaluated under the same conditions as in Experimental Example 1 except that the raw materials having the composition shown in Table 3 were used. Table 3 shows the results.
【００４３】[0043]
【表３】 [Table 3]
【００４４】実験例４ 表４に示す配合の使用原料を使用したこと以外は、実験
例１と同様の条件により目的とするものを得、評価を行
った。その結果を表４に示す。Experimental Example 4 The objective product was obtained and evaluated under the same conditions as in Experimental Example 1 except that the raw materials having the composition shown in Table 4 were used. Table 4 shows the results.
【００４５】（使用原料） 充填剤−２：市販品、タルク、平均粒径４μｍ 充填剤−３：市販品、水酸化アルミニウム 充填剤−４：市販品、クレー(Raw materials used) Filler-2: Commercial product, talc, average particle size 4 μm Filler-3: Commercial product, aluminum hydroxide Filler-4: Commercial product, clay
【００４６】〔試験方法〕 （細部形状の成形加工性の評価）成形加工性の評価試験
方法で成形したウインドウモールにつき、表面状態が特
に平滑で、金型形状が細部まで賦形されたものを○、細
部まで賦形されていない箇所が僅かにあるものを△、細
部まで賦形されなかったものを×とした。[Test Method] (Evaluation of Formability of Detail Shape) With respect to the window molding formed by the evaluation test method of formability, the one having a particularly smooth surface state and a detailed shape of the mold was used. 、, a case where there were a few places where the details were not formed was marked as Δ, and a case where the details were not formed was marked as ×.
【００４７】[0047]
【表４】 [Table 4]
【００４８】実験例５ 表５に示す配合の使用原料を使用したこと以外は、実験
例１と同様の条件により目的とするものを得、評価を行
った。その結果を表５に示す。Experimental Example 5 An objective product was obtained and evaluated under the same conditions as in Experimental Example 1 except that the raw materials having the composition shown in Table 5 were used. Table 5 shows the results.
【００４９】（使用原料） アクリル系ゴム−２：市販品、コア−シェル型構造を有
しないもの(Raw materials) Acrylic rubber-2: commercially available product, having no core-shell structure
【００５０】[0050]
【表５】 [Table 5]
【００５１】[0051]
【発明の効果】本発明により、硬質樹脂組成物との熱融
着性、塩化ビニル系樹脂の成形加工性や耐候性を低下さ
せることなく、圧縮永久歪特性を改良した共押出成形品
を提供できる。特にＪＩＳ Ｋ６２６２（７０℃×２２
時間）に定める圧縮永久歪が、従来品よりも低く良好な
ので、モール、特に車両用モール（好ましくはウインド
ウモール）として使用できる。According to the present invention, there is provided a co-extruded product having improved compression set characteristics without deteriorating the heat-fusibility with a hard resin composition, the moldability and weatherability of a vinyl chloride resin. it can. In particular, JIS K6262 (70 ° C × 22
Since the compression set determined at (time) is lower and better than that of the conventional product, it can be used as a molding, especially a molding for vehicles (preferably a window molding).
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｌ 27/06 Ｃ０８Ｌ 27/06 33/08 33/08 // Ｂ２９Ｋ 19:00 Ｂ２９Ｋ 19:00 27:06 27:06 105:06 105:06 Ｂ２９Ｌ 9:00 Ｂ２９Ｌ 9:00 31:30 31:30 Ｆターム(参考） 4F071 AA24 AA33 AA77 AA81 AC10 AE04 AH10 BB06 BC01 4F100 AA08A AC10A AK01B AK15A AK25A AK74 AL05A AL05B AN02A BA02 BA07 CA04A CA23A EH20 GB07 GB36 JJ03 JK05 JK12B JK13A 4F207 AA15 AA43 AA45 AB07 AB11 AG03 AH23 KA01 KA17 KB22 4J002 BD061 BD071 BD081 BD091 BD101 BN081 BN122 DE237 DJ047 EH096 EH146 FD017 FD026 GM00 GN00 GQ01──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) C08L 27/06 C08L 27/06 33/08 33/08 // B29K 19:00 B29K 19:00 27:06 27:06 105: 06 105: 06 B29L 9:00 B29L 9:00 31:30 31:30 F term (reference) 4F071 AA24 AA33 AA77 AA81 AC10 AE04 AH10 BB06 BC01 4F100 AA08A AC10A AK01B AK15A AK25A AK74 AL05A AL05B AN02 BA02 BA02 CA04A CA23A EH20 GB07 GB36 JJ03 JK05 JK12B JK13A 4F207 AA15 AA43 AA45 AB07 AB11 AG03 AH23 KA01 KA17 KB22 4J002 BD061 BD071 BD081 BD091 BD101 BN081 BN122 DE237 DJ047 EH096 EH146 GM017 FD017 FD017 FD017 FD017 FD017 FD017
Claims (6)
び可塑剤を含有してなる軟質樹脂組成物と、硬質樹脂組
成物とを共押出してなる共押出成形品。1. A co-extruded product obtained by co-extrusion of a soft resin composition containing a vinyl chloride resin, an acrylic rubber, and a plasticizer, and a hard resin composition.
〜４０００である請求項１記載の共押出成形品。2. The average degree of polymerization of the vinyl chloride resin is 800.
The co-extruded product according to claim 1, wherein the number is from 4000 to 4000.
又は２記載の共押出成形品。3. The method according to claim 1, further comprising a filler.
Or a co-extruded product according to 2.
クである請求項３記載の共押出成形品。4. The co-extruded product according to claim 3, wherein the filler is calcium carbonate and / or talc.
有する請求項１〜４のうちの１項記載の共押出成形品。5. The co-extruded product according to claim 1, wherein the acrylic rubber has a core-shell type structure.
成形品からなるウインドウモール。6. A window molding comprising the co-extruded product according to claim 1. Description:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000083893A JP2001270052A (en) | 2000-03-24 | 2000-03-24 | Co-extruded item and window molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000083893A JP2001270052A (en) | 2000-03-24 | 2000-03-24 | Co-extruded item and window molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001270052A true JP2001270052A (en) | 2001-10-02 |
Family
ID=18600451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000083893A Pending JP2001270052A (en) | 2000-03-24 | 2000-03-24 | Co-extruded item and window molding |
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| Country | Link |
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| JP (1) | JP2001270052A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019517617A (en) * | 2016-06-07 | 2019-06-24 | アルケマ フランス | Polymer composition, process for its preparation, its use and composition comprising said polymer composition |
| CN110894327A (en) * | 2019-10-08 | 2020-03-20 | 佛山市龙异卫浴科技有限公司 | Manufacturing method of high-light-transmission soft-hard co-extrusion PVC adhesive tape |
-
2000
- 2000-03-24 JP JP2000083893A patent/JP2001270052A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019517617A (en) * | 2016-06-07 | 2019-06-24 | アルケマ フランス | Polymer composition, process for its preparation, its use and composition comprising said polymer composition |
| CN110894327A (en) * | 2019-10-08 | 2020-03-20 | 佛山市龙异卫浴科技有限公司 | Manufacturing method of high-light-transmission soft-hard co-extrusion PVC adhesive tape |
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