JPH0321573B2 - - Google Patents

Info

Publication number
JPH0321573B2
JPH0321573B2 JP59225014A JP22501484A JPH0321573B2 JP H0321573 B2 JPH0321573 B2 JP H0321573B2 JP 59225014 A JP59225014 A JP 59225014A JP 22501484 A JP22501484 A JP 22501484A JP H0321573 B2 JPH0321573 B2 JP H0321573B2
Authority
JP
Japan
Prior art keywords
group
vinyl chloride
chloride resin
compound represented
film
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 - Lifetime
Application number
JP59225014A
Other languages
Japanese (ja)
Other versions
JPS61101544A (en
Inventor
Suenori Nakashita
Hideo Tsujimoto
Kazunari Hasegawa
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.)
Sakai Chemical Industry Co Ltd
Original Assignee
Sakai Chemical Industry Co Ltd
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 Sakai Chemical Industry Co Ltd filed Critical Sakai Chemical Industry Co Ltd
Priority to JP59225014A priority Critical patent/JPS61101544A/en
Publication of JPS61101544A publication Critical patent/JPS61101544A/en
Publication of JPH0321573B2 publication Critical patent/JPH0321573B2/ja
Granted legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor

Landscapes

  • Protection Of Plants (AREA)
  • Greenhouses (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Description

【発明の詳細な説明】[Detailed description of the invention]

〔産業上の利用分野〕 本発明は耐候性の優れた農業フイルム用の塩化
ビニル樹脂組成物に関する。 〔従来の技術及び発明が解決しようとする課題〕 塩化ビニル樹脂は、透明性、強度、経済性など
に優れるため、ビニルハウスやトンネル等の農業
フイルムとして多量に使用されている。 しかしながら、塩化ビニル樹脂には、屋外使用
した場合、太陽光線やほこり、酸素等の影響を受
けて、硬化や褐変劣化等、いわゆる耐候劣化を起
こし易いという欠点がある。この欠点は、農業フ
イルムにおいては、特に問題となる。 このため、従来、塩化ビニル樹脂を農業フイル
ムに適用する場合は、塩化ビニル樹脂に耐候性改
良剤として有機酸金属塩、紫外線吸収剤、酸化防
止剤、有機亜リン酸エステル等を使用することが
一般的に行われている。 その他、下記一般式(1)又は(2)で表される化合物
を配合することにより、光および熱に対する塩素
含有樹脂の安定性を改良することも報告されてい
る(特開昭55−50043号、特開昭53−91958号、特
開昭58−76441号公報など参照)。 〔但し、上式(1)および(2)中、R7〜R9はアルキ
ル基、アリールアルキル基などである。〕 しかしながら、これらとても僅か1年程度の屋
外曝露で褐変してしまうなど、十分な耐候性を有
するものではなかつた。 このため、より優れた耐候性を有する農業フイ
ルム用塩化ビニル樹脂の出現が農業界において要
望されていたのである。 そこで、かかる要望に応えるべく鋭意研究した
結果、本発明者等は、塩化ビニル樹脂、可塑剤、
ノニオン系界面活性剤および有機酸金属塩からな
る従来既知の塩化ビニル樹脂組成物に、上式(1)又
は(2)などで表される化合物の他、さらに特定の化
合物を配合することにより、耐候性が著しく優れ
た農業フイルム用塩化ビニル樹脂組成物が得られ
ることを見出した。 本発明はかかる知見に基づきなされたものであ
つて、その目的とするところは、優れた耐候性を
有する農業フイルム用塩化ビニル樹脂組成物を提
供するにある。 〔課題を解決するための手段〕 上記目的を達成するための本発明に係る農業フ
イルム用塩化ビニル樹脂組成物は、塩化ビニル樹
脂に、可塑剤、ノニオン系界面活性剤、有機酸金
属塩、下記一般式〔〕で表される化合物、およ
び、下記一般式〔〕で表される化合物および/
又は下記一般式〔〕で表される化合物が配合さ
れてなる。 〔但し、上式中、R1〜R6は同一または異なつ
て、アルキル基、アルケニル基、フエニル基、ト
ルイル基、キシリル基、ノニルフエニル基、ベン
ジル基または−(CoH2oO)n−R7を示し、ここに
R7はアルキル基、nは2または3の整数、mは
1以上の整数である。〕 本発明において使用される式〔〕で表される
化合物としては、例えば次のような化合物を挙げ
ることができる。 上式〔〕で表される化合物は、塩化ビニル樹
脂100重量部に対して、通常0.1〜10重量部、好ま
しくは1〜6重量部用いられ、一種単独で用いら
れてもよく、二種以上併用されてもよい。 次に、式〔〕または式〔〕で表される化合
物としては、例えば次のような化合物を挙げるこ
とができる。 式〔〕で表される化合物 式〔〕で表される化合物 上記、式〔〕で表される化合物および式
〔〕で表される化合物は、塩化ビニル樹脂100重
量部に対して、総量で通常0.01〜5重量部、好ま
しくは0.05〜1.0重量部用いられ、またこれらの
化合物は、それぞれ一種単独を用いられてもよ
く、二種以上併用されてもよい。 なお、通常の合成法では、両式の化合物が混在
して生成する。 本発明における可塑剤としては、例えばジオク
チルフタレート、ジヘキシルフタレート、ジイソ
デシルフタレート等のフタル酸エステル系、ジオ
クチルアジペート、ジイソノニルアジペート等の
アジピン酸エステル系など、塩化ビニル樹脂用の
可塑剤として一般に用いられている従来既知の
種々の可塑剤を用いることができる。 本発明におけるノニオン系界面活性剤は、農業
フイルムに一般的に配合されているものであり、
次に示す如く流滴剤として機能するものである。 すなわち、寒くなると、温室栽培用ビニルハウ
ス等の農業フイルムの内部壁面には、内外の温度
差に起因して、湿気が付着する所謂結露現象が起
こる。この結露現象により生じた水滴は、塩化ビ
ニル樹脂が疎水性であるため、室内の植物に落滴
し、その成育を妨げる。ところが、ノニオン系界
面活性剤がフイルム中に配合されていると、フイ
ルム表面が親水性となり水とのなじみがよくな
り、結露した水滴はフイルムの内部壁面に沿つて
下方へ流下し地中に流れ去るため、植物の成育が
妨げられないのである。 上記ノニオン系界面活性剤としては、従来一般
に流滴剤として用いられているものを用いること
ができ、ソルビタンモノステアレート、ソルビタ
ンモノパルミテート、ソルビタンモノラウレー
ト、ソルビタンセスキステアレート、ソルビタン
ジパルミテート、ポリオキシエチレンソルビタン
モノステアレート、ポリオキシエチレンソルビタ
ンセスキステアレート、ポリオキシエチレンソル
ビタンジステアレート、ソルビトールモノステア
レート、ジペンタエリスリトールモノパルミテー
ト、グリセリンモノステアレートが例示される。 本発明における有機酸金属塩としては、例えば
Ba、Ca、Sr、MgまたはZnのステアリン酸塩、
ラウリン酸塩、オクチル酸塩、ベヘニン酸塩、オ
レイン酸塩、安息香酸塩、トルイル酸塩、パラタ
ーシヤリブチル安息香酸塩またはデヒドロ酢酸塩
など、従来既知の種々の有機酸金属塩を用いるこ
とができる。 また、成型加工上あるいは使用上における基本
的な性能を満たす為に、本発明に係る農業フイル
ム用塩化ビニル樹脂組成物に、強化剤、滑剤、ブ
ロツキング防止剤、有機亜リン酸エステル、顔
料、紫外線吸収剤、ゲル化剤、酸化防止剤、着色
防止剤、エポキシ化合物などの、従来既知の塩化
ビニル樹脂用の各種添加剤を適宜配合してもよ
い。 〔実施例〕 以下、本発明を実施例に基づいてさらに詳細に
説明するが、本発明は下記実施例に何ら限定され
るものではなく、その要旨を変更しない範囲にお
いて適宜変更して実施することが可能なものであ
る。 (実施例1〜11および比較例1〜9) 表1に示す各組成の配合物を180℃のロールに
て混練し、厚さ0.1mmのフイルムとした。得られ
たフイルムを屋外にて曝露試験を行い、フイルム
の変色状態を目視にて観察し耐候性を評価した。 (実施例12〜15および比較例10〜13) 表2に示す各組成の配合物を180℃のロールに
て混練し、厚さ0.1mmのフイルムとした。得られ
たフイルムを屋外にて曝露試験を行い、フイルム
の状態を目視にて観察し耐候性を評価した。 (実施例16〜23および比較例14〜17) 表3に示す各組成の配合物を180℃のロールに
て混練し、厚さ0.1mmのフイルムとした。得られ
たフイルムを屋外にて曝露試験を行い、フイルム
の状態を目視にて観察し耐候性を評価した。 表1、表2および表3に示した耐候性の評価基
準は次の通りである。 ○:変化なし ○△:わずかに褐変 △:褐変部有り △×:褐変部多し ×:全面褐変
[Industrial Application Field] The present invention relates to a vinyl chloride resin composition for use in agricultural films that has excellent weather resistance. [Prior Art and Problems to be Solved by the Invention] Vinyl chloride resins are used in large quantities as agricultural films for vinyl houses, tunnels, etc. because of their excellent transparency, strength, and economic efficiency. However, when used outdoors, vinyl chloride resins have the disadvantage that they are susceptible to so-called weather resistance deterioration, such as hardening and browning deterioration, due to the influence of sunlight, dust, oxygen, and the like. This drawback is particularly problematic in agricultural films. For this reason, conventionally, when applying vinyl chloride resin to agricultural films, organic acid metal salts, ultraviolet absorbers, antioxidants, organic phosphite esters, etc. have not been used as weather resistance improvers in the vinyl chloride resin. This is commonly done. In addition, it has also been reported that the stability of chlorine-containing resins against light and heat can be improved by blending a compound represented by the following general formula (1) or (2) (Japanese Patent Laid-Open No. 55-50043 , JP-A-53-91958, JP-A-58-76441, etc.). [However, in the above formulas (1) and (2), R 7 to R 9 are an alkyl group, an arylalkyl group, etc. ] However, these did not have sufficient weather resistance, as they turned brown after being exposed outdoors for only about one year. Therefore, there has been a demand in the agricultural industry for a vinyl chloride resin for agricultural films that has better weather resistance. Therefore, as a result of intensive research to meet such demands, the present inventors have discovered that vinyl chloride resin, plasticizer,
By blending a specific compound in addition to the compound represented by the above formula (1) or (2) into a conventionally known vinyl chloride resin composition consisting of a nonionic surfactant and an organic acid metal salt, It has been found that a vinyl chloride resin composition for agricultural film can be obtained which has extremely excellent weather resistance. The present invention was made based on this knowledge, and its object is to provide a vinyl chloride resin composition for agricultural films that has excellent weather resistance. [Means for Solving the Problems] The vinyl chloride resin composition for agricultural film according to the present invention to achieve the above object contains a vinyl chloride resin, a plasticizer, a nonionic surfactant, an organic acid metal salt, and the following. Compounds represented by the general formula [], and compounds represented by the following general formula [] and/or
Or, a compound represented by the following general formula [] is blended. [However, in the above formula, R 1 to R 6 are the same or different and are an alkyl group, an alkenyl group, a phenyl group, a tolyl group, a xylyl group, a nonylphenyl group, a benzyl group, or -(C o H 2o O) n -R 7 and here
R 7 is an alkyl group, n is an integer of 2 or 3, and m is an integer of 1 or more. ] Examples of the compound represented by the formula [ ] used in the present invention include the following compounds. The compound represented by the above formula [] is usually used in an amount of 0.1 to 10 parts by weight, preferably 1 to 6 parts by weight, per 100 parts by weight of the vinyl chloride resin, and may be used alone or in combination of two or more. May be used in combination. Next, examples of the compound represented by formula [] or formula [] include the following compounds. Compound represented by formula [] Compound represented by formula [] The compound represented by the above formula [] and the compound represented by the formula [] are used in a total amount of usually 0.01 to 5 parts by weight, preferably 0.05 to 1.0 parts by weight, based on 100 parts by weight of the vinyl chloride resin, Further, these compounds may be used alone or in combination of two or more. In addition, in normal synthesis methods, compounds of both formulas are produced in a mixture. Examples of plasticizers used in the present invention include phthalate esters such as dioctyl phthalate, dihexyl phthalate, and diisodecyl phthalate, and adipic esters such as dioctyl adipate and diisononyl adipate, which are commonly used as plasticizers for vinyl chloride resins. Various conventionally known plasticizers can be used. The nonionic surfactant in the present invention is one that is commonly blended into agricultural films,
It functions as a droplet agent as shown below. That is, when it gets cold, a so-called dew condensation phenomenon occurs in which moisture adheres to the inner wall surface of an agricultural film such as a vinyl greenhouse for greenhouse cultivation due to the difference in temperature between the inside and outside. Since the vinyl chloride resin is hydrophobic, water droplets generated by this dew condensation fall on indoor plants and hinder their growth. However, when a nonionic surfactant is blended into the film, the surface of the film becomes hydrophilic and blends well with water, allowing the condensed water droplets to flow downward along the inner wall of the film and into the ground. Because they leave, plant growth is not hindered. As the nonionic surfactant, those commonly used as droplet agents can be used, such as sorbitan monostearate, sorbitan monopalmitate, sorbitan monolaurate, sorbitan sesquistearate, and sorbitan dipalmitate. , polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan sesquistearate, polyoxyethylene sorbitan distearate, sorbitol monostearate, dipentaerythritol monopalmitate, and glycerin monostearate. Examples of the organic acid metal salt in the present invention include
Stearate of Ba, Ca, Sr, Mg or Zn,
Various conventionally known metal salts of organic acids can be used, such as laurate, octylate, behenate, oleate, benzoate, toluate, paratertiary butylbenzoate or dehydroacetate. can. In addition, in order to satisfy the basic performance in molding processing or use, the vinyl chloride resin composition for agricultural films according to the present invention may contain reinforcing agents, lubricants, anti-blocking agents, organic phosphite esters, pigments, ultraviolet rays, etc. Various conventionally known additives for vinyl chloride resins, such as absorbers, gelling agents, antioxidants, color inhibitors, and epoxy compounds, may be appropriately blended. [Examples] The present invention will be described in more detail based on Examples below, but the present invention is not limited to the Examples below, and may be practiced with appropriate modifications within the scope of the gist thereof. is possible. (Examples 1 to 11 and Comparative Examples 1 to 9) Blends having the respective compositions shown in Table 1 were kneaded with a roll at 180°C to form a film with a thickness of 0.1 mm. The obtained film was subjected to an outdoor exposure test, and the discoloration state of the film was visually observed to evaluate weather resistance. (Examples 12 to 15 and Comparative Examples 10 to 13) Blends having the respective compositions shown in Table 2 were kneaded with a roll at 180°C to form a film with a thickness of 0.1 mm. The obtained film was subjected to an exposure test outdoors, and the state of the film was visually observed to evaluate its weather resistance. (Examples 16 to 23 and Comparative Examples 14 to 17) Blends having the respective compositions shown in Table 3 were kneaded with a roll at 180°C to form a film with a thickness of 0.1 mm. The obtained film was subjected to an exposure test outdoors, and the state of the film was visually observed to evaluate its weather resistance. The weather resistance evaluation criteria shown in Tables 1, 2, and 3 are as follows. ○: No change ○△: Slight browning △: Browning areas present △ ×: Many browning areas ×: Full browning

【表】【table】

【表】【table】

【表】【table】

〔発明の効果〕〔Effect of the invention〕

以上詳細に説明したように、本発明に係る塩化
ビニル樹脂組成物は、〔〕の化合物のみ、或い
は、〔〕および/又は〔〕の化合物のみを塩
化ビニル樹脂に配合したものでは得られない優れ
た耐候性を、〔〕と、〔〕および/又は〔〕
との相乗効果によりを発現するものであり、高度
の耐候性が要求される農業フイルムとして用いて
好適である等、本発明は優れた特有の効果を奏す
る。
As explained in detail above, the vinyl chloride resin composition according to the present invention has advantages that cannot be obtained by blending only the compound [] or only the compounds [] and/or [] into a vinyl chloride resin. weather resistance, [], [] and/or []
The present invention exhibits excellent and unique effects, such as being suitable for use as an agricultural film that requires a high degree of weather resistance.

Claims (1)

【特許請求の範囲】 1 塩化ビニル樹脂に、可塑剤、ノニオン系界面
活性剤、有機酸金属塩、下記一般式〔〕で表さ
れる化合物、および、下記一般式〔〕で表され
る化合物および/又は下記一般式〔〕で表され
る化合物が配合されてなる農業フイルム用の塩化
ビニル樹脂組成物。 〔ただし、R1〜R6は同一または異なつて、ア
ルキル基、アルケニル基、フエニル基、トルイル
基、キシリル基、ノニルフエニル基、ベンジル基
または−(CoH2oO)n−R7を示し、ここにR7はア
ルキル基、nは2または3の整数、mは1以上の
整数を示す。〕
[Claims] 1. A vinyl chloride resin, a plasticizer, a nonionic surfactant, an organic acid metal salt, a compound represented by the following general formula [], and a compound represented by the following general formula [] and A vinyl chloride resin composition for agricultural film, which contains/or a compound represented by the following general formula []. [However, R 1 to R 6 are the same or different and represent an alkyl group, an alkenyl group, a phenyl group, a tolyl group, a xylyl group, a nonylphenyl group, a benzyl group, or -(C o H 2o O) n -R 7 , Here, R 7 is an alkyl group, n is an integer of 2 or 3, and m is an integer of 1 or more. ]
JP59225014A 1984-10-25 1984-10-25 Chlorine-containing resin composition Granted JPS61101544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59225014A JPS61101544A (en) 1984-10-25 1984-10-25 Chlorine-containing resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59225014A JPS61101544A (en) 1984-10-25 1984-10-25 Chlorine-containing resin composition

Publications (2)

Publication Number Publication Date
JPS61101544A JPS61101544A (en) 1986-05-20
JPH0321573B2 true JPH0321573B2 (en) 1991-03-25

Family

ID=16822717

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59225014A Granted JPS61101544A (en) 1984-10-25 1984-10-25 Chlorine-containing resin composition

Country Status (1)

Country Link
JP (1) JPS61101544A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63175057A (en) * 1987-01-13 1988-07-19 Mitsubishi Kasei Vinyl Co Vinyl chloride based polymer composition
JPH01184130A (en) * 1988-01-18 1989-07-21 Mitsubishi Kasei Vinyl Co Agricultural vinyl chloride resin film
JPH02108536A (en) * 1988-10-18 1990-04-20 Mitsubishi Kasei Vinyl Co Vinyl chloride resin film for agricultural use
JP2654694B2 (en) * 1989-09-13 1997-09-17 日本ポリウレタン工業株式会社 Method for producing thermoplastic polyurethane resin with excellent thermal stability

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52148026A (en) * 1976-05-28 1977-12-08 Hoechst Ag Phosphite and stabilizer composition containing same
JPS5391958A (en) * 1977-08-17 1978-08-12 Katsuta Kako Kk Stabilized halogeneecontaining resin composition
JPS5550043A (en) * 1978-10-06 1980-04-11 Adeka Argus Chem Co Ltd Halogen-containing resin composition
JPS5876441A (en) * 1981-10-31 1983-05-09 Kanegafuchi Chem Ind Co Ltd Vinyl chloride pasty resin composition and vinyl chloride pasty resin sol composition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52148026A (en) * 1976-05-28 1977-12-08 Hoechst Ag Phosphite and stabilizer composition containing same
JPS5391958A (en) * 1977-08-17 1978-08-12 Katsuta Kako Kk Stabilized halogeneecontaining resin composition
JPS5550043A (en) * 1978-10-06 1980-04-11 Adeka Argus Chem Co Ltd Halogen-containing resin composition
JPS5876441A (en) * 1981-10-31 1983-05-09 Kanegafuchi Chem Ind Co Ltd Vinyl chloride pasty resin composition and vinyl chloride pasty resin sol composition

Also Published As

Publication number Publication date
JPS61101544A (en) 1986-05-20

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