JPH0374704B2 - - Google Patents

Info

Publication number
JPH0374704B2
JPH0374704B2 JP61110844A JP11084486A JPH0374704B2 JP H0374704 B2 JPH0374704 B2 JP H0374704B2 JP 61110844 A JP61110844 A JP 61110844A JP 11084486 A JP11084486 A JP 11084486A JP H0374704 B2 JPH0374704 B2 JP H0374704B2
Authority
JP
Japan
Prior art keywords
present
light
colored
polymer
pigments
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
JP61110844A
Other languages
Japanese (ja)
Other versions
JPS62267360A (en
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 filed Critical
Priority to JP11084486A priority Critical patent/JPS62267360A/en
Publication of JPS62267360A publication Critical patent/JPS62267360A/en
Publication of JPH0374704B2 publication Critical patent/JPH0374704B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)

Description

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

発明の背景 技術分野 本発明は、有機顔料を主要着色剤とする高分子
着色成形材に関し、さらに具体的には、本発明
は、高分子着色成形材用の耐光安定化剤に関す
る。 高分子中の顔料は、色彩を与えるばかりでな
く、高分子表面の亀裂、白亜化などの物理的また
は化学的欠陥を補足ないし増強するなどの役目を
も担うものである。 このような目的で用いられる顔料は、一般に耐
光性、隠蔽力、耐溶剤性などの物性にすぐれてい
る無機質のものが常用されている。しかしなが
ら、無機顔料には色の種類、鮮やかさ等において
制限がある。 このようなところから、有機顔料に対する需要
があつて、無機顔料では得難い色、たとえば赤色
や鮮やかな色の高分子着色物を調製する場合には
有機顔料によらざるを得ないのが現状である。 有機顔料は、このように、色相が豊富で鮮明さ
及び着色力にすぐれている。しかしながら、耐光
性や隠蔽力などの物性においては、無機顔料に比
べて劣つており、特に耐光性の低いことが使用上
の大きな障害となつている。 近年、これらの点を改良した有機顔料も開発さ
れつつあるが、それらは非常に高価であるので、
極く限られた分野でしか使用されていないのが実
情である。したがつて、慣用されている安価な有
機顔料の耐光性が改良されて耐久力のある高分子
着色物を得ることができるならば、その着色物の
付加価値性を向上させるためにも、また省資源・
省エネルギーに見地からも、有意義なことであ
る。当該業界ではこのような技術の開発を強く要
望している。 先行技術 高分子着色成形物中の有機顔料の色を光に対し
て堅牢にするために従来いくつかの手段が試みら
れてきた。例えば、(1)顔料そのものを光に対して
堅牢したり、(2)紫外線から着色顔料を保護する紫
外線吸収剤を高分子中に練り込んだり、(3)光によ
つて引き起こされる有機顔料の分解を抑制する自
動酸化防止剤を使用したり等の手段である。(1)の
手段として、対光性などの有機顔料の欠点を改善
したものも開発されてはいるが、上記したように
このような高級有機顔料は非常に高価であるた
め、青〜緑色のフタロシアニン系のものを除いて
は、極く限られた分野でしか用いられず、汎用顔
料とは言い難いのが現状である。(2)の紫外線吸収
剤としてはサリチル酸エステルやその誘導体、ベ
ンゾフエノン誘導体、ベンゾトリアゾール誘導体
などがよく知られており、また(3)の酸化防止剤と
しては立体障害のあるフエノール性化合物、アミ
ン誘導体、イミダゾール誘導体等のラジカル捕捉
能もしくは過酸化物分解能を有する化合物などが
知られている。これらの化合物の中には、確かに
有機顔料の変色や退色の防止効果を示すものもあ
るが、その効力は小さくて、充分なものとは言い
難い。 また、従来、感光性ポリマーの紫外線劣化を防
止することを目的として、組成物中にアリールス
ルホン酸金属塩を添加する技術(特開昭49−
74226号)や特定のベンゼンジチオラート金属錯
体を被覆材に添加することによつて、材料の熱的
な安定性を向上させる技術(特開昭50−45027号)
も知られている。しかし、これらの技術も、有機
系色素を含有する高分子組成物の光退色性を改善
する上においては有効ではない。 近年、染料などの有機系色素の光退色が主とし
て、色素自身の光増感作用と空気中の酸素(三重
項酸素)とが関与して生成する活性な一重項状態
の酸素によつて酸化されるために起こる、という
ことが明らかにされている。このメカニズムによ
る光退色を防止するためには、従来の紫外線吸収
剤や自動酸化防止剤は殆ど効果がなく、光退色の
主要因である活性な一重項酸素を非活性化させる
作用を有する化合物が効果を発揮する。このよう
な作用をもつ化合物としては、1,4−ジアザビ
シクロ〔2,2,2〕オクタンやβ−カロチン類
等が知られているが、これらは昇華性や光安定性
などに問題があるため実用に共するには不向きで
あり、高分子用として総合的に優れた効果を発揮
する有機顔料着色物の耐光堅牢剤はいまだ見当た
らあい。(なお、後記の効果の項を参照された
い。) 発明の概要 要 旨 本発明は上記の問題に解決を与えることを目的
とし、効果的な耐光堅牢剤の使用によつてこの目
的を達成しようとするものである。 したがつて、本発明によると光退色性に係る耐
光性を改善した有機顔料を主要着色剤とする高分
子着色成形剤用の耐光安定化剤は、下記の一般式
で表されるビスジチオ−α−ジケトンの金属錯体
を含有することを特徴とするものである。 〔式中、R1及びR2はメチル基、エチル基又はフ
エニル基を示し、M1はNi又はCoを示す。〕 効 果 本発明の高分子着色成形剤用耐光安定化剤は、
上記の点において改善されている。 なお、本出願人は上記一般式に係る化合物を塗
料組成物に応用し、塗料退色防止の発明を完成し
ている(特願昭59−209501号)。また、ビス(N
−n−ドデシルサリチルアルドイミン)金属錯体
を写真フイルム色画像の退色防止に応用した例が
開示されている(特開昭56−99340号公報)。しか
し、このような金属錯体を、有機顔料を主要着色
剤とした高分子着色成形材に直接添加し、光退色
性に係る耐光堅牢化を目的として、適用した報告
はいまだに見当たらない。 本発明は、有機色素の光退色メカニズムや防止
メカニズムの基礎的研究に基づいて、このニツケ
ル錯体の光退色防止作用が光退色の主要因である
一重項酸素の活性エネルギーを吸収して非活性化
させることに在るという発見をなし、この発明を
高分子成形材に応用して、所期の目的を達するの
に成功したものである。 本発明の安定剤化合物は、その微量を高分子中
に含有させた際に、着色有機顔料の耐光堅牢性を
著しく高めるものであつて、これらの特性を利用
すれば高分子着色物の付加価値性や耐久性を高め
て工業的ならびに省資源的に有利な改良を提供し
得るものである。 発明の具体的説明 安定剤化合物 化合物 本発明で高分子着色物の光退色に対する安定剤
として使用する錯体は、前記の一般式に属する化
合物である。 すなわち、ビスジチオ−α−ジケトンの金属錯
体の金属種は、Ni又はCoである。これらのうち
では、Niが最適である。この化合物はメチル基、
エチル基を置換基とする以外にフエニル基を持つ
が、このフエニル基は低級アルキル基又は低級ア
ルコキシ基(いずれも炭素原子数1〜6個程度)
で置換されたものであつてもよい。したがつて、
この化合物に関しての「フエニル」といえ用語
は、低級アルキル又は低級アルキル置換フエニル
を包合するものとして理解すべきである。なお、
合成面やコスト面からは、非置換のフエニルのも
のが好ましい。 これらの化合物はいずれも公知のものであり、
したがつて合目的的な任意の方法で合成したもの
を使用することができる。例えば、上記の化合物
であるビスジチオベンジル金属錯体の合成は公知
の方法によつて行なわれる。すなわち、ベンゾイ
ンと五硫化リンをジオキサン又はキシレンに溶解
し、95〜110℃で約15時間撹拌する。室温にまで
冷却後、過する。この過母液に、ベンゾイン
仕込量の約1/2モル量の塩化ニツケルを水に溶か
した溶液を加えて、還流下に3〜5時間撹拌す
る。室温にまで冷却し、析出した結晶を過して
得る。この粗生成物を、ジオキサン、メタノール
等の有機溶媒及び(又は)温水で処理することに
より未反応物、副反応物等を除去してから乾燥す
ると、融点280〜286℃の目的物であるニツケル錯
体が固型状又は粉末状として得られる。なお、上
記操作中の塩化ニツケルの代りに塩化コバルトを
使用すると300℃以上の融点をもつコバルト錯体
が得られる。 次に代表的な化合物を融点又は分解点と共に例
示するが、これらに限定されるものではない。 ビス(2,3−ジチオブタンジオン)ニツケル
(分解点 254℃) ビス(3,4−ジチオヘキサンジオン)ニツケル
(分解点 112℃) ビス(ジチオベンジル)ニツケル
(融点 286℃) ビス(ジチオベンジル)コバルト
(融点 300℃以上) ビス(4,4′−ジメチルジチオベンジル)ニツケ
ル (分解点 337℃) 上記の化合物の例のうち、市販品以外は試作合
成し、いずれも元素分析及び赤外線吸収スペクト
ル分析で構造確認を行なつた。 安定剤化合物の使用 本発明の「耐光安定化剤」は、慣用の高分子着
色成形材に前記の金属錯体(安定剤化合物)を1
種又は2種以上配合することによつて使用され
る。 本発明安定剤化合物の添加量は、高分子成分に
対して0.1〜10重量%が一般的な範囲であるが、
特に好ましくは0.3〜2重量%である。クロロス
ルホン化ポリエチレンに含有させる場合には、加
え過ぎると安定剤化合物により加硫時間をやや遅
らせたり、速めたりする傾向があるため、この添
加量は0.3〜1.5重量%程度が好適である。 なお、本発明による安定剤化合物は、それ自身
わずかに緑色を呈しているものもあるが、上記し
た添加量の範囲では着色顔料の色調変化を伴う挙
動は殆どみられず、安心して用いることができ
る。 本発明では、これらの安定剤化合物に他の酸化
防止剤や紫外線吸収剤を伴せて使用してもかまわ
ない。退色防止を助長する公知の酸化防止剤とし
ては、2,6−ジ−t−ブチル−4−メチルフエ
ノール、2,2−メチレンビス(4−メチル−6
−t−ブチルフエノール)、4,4′−チオビス
(3−メチル−6−t−ブチルフエノール)、4,
4′−ブチリデンビス(6−t−ブチル−m−クレ
ゾール)などのフエノール誘導体等が挙げられ
る。これらとの併用によつて、より大きな光退色
抑制効果の得られる場合がある。 基材高分子着色組成物 本発明の安定剤化合物が上記した特定の金属錯
体であり、有機顔料を主要着色剤とするものであ
る限り、基材高分子着色組成物は合目的的な任意
なものでありうる。 なお、ここで「基材高分子着色組成物」とは、
本発明の安定剤化合物を配合すべき高分子組成物
をいう。したがつて、前記のフエノール誘導体の
ような公知の酸化防止剤を必要に応じて配合した
ものも、本発明でいう基材高分子着色組成物と解
するものとする。 高分子組成物は一般に非常に複雑な組成をして
いるものであるが、本発明の安定剤化合物が適用
できる高分子の種類は、ポリエチレン、ポリプロ
ピレン、ポリ塩化ビニル等のポリオレフイン類、
ポリウレタン類、合成ゴム類などが好適なものと
して挙げられるが、これらに限定するものではな
い。 本発明の高分子着色組成物の主要着色剤として
用いる有機顔料としては、C.I.Pigment Red49
(リトールレツド),C.I. Pigment Red3(トルイ
ゾンレツド),C.I.Pigment Red38(ピラゾロンレ
ツドB),C.I. Piment Red48(ウオツチングレツ
ド),C.I. Pigment Orange17(オレンジレーキ)
などの赤色系有機顔料の他、C.I.Solvent33(キノ
リンイエローベース)などの黄色や青色系などの
多くの有機顔料が挙げられ、本発明は使用する有
機顔料の種類を特に限定するものではない。しか
しながら、耐光性に優れる無機顔料の中に適当な
ものが少ないためやむなく有機顔料が使用され、
かつ使用頻度の非常に高い赤色系及び黄色系有機
顔料で着色した高分子組成物に適用した場合に本
発明のメリツトは最も大きいといえよう。また、
近年の重金属公害問題に関連して使用が困難にな
りつつある無機顔料、例えば古くから多用されて
きた黄色の硫化カドミウム(CdS)のようなカド
ミニウムの毒性によりユーザー側で自主規制を行
つているものに対して、耐光性を犠牲にしてでも
安全な有機系顔料に代替しようとする考えから開
発された代替有機顔料(例えば、キノフタロン骨
格を有するものなど)を用いた高分子着色物に、
本発明の安定剤化合物を適用した場合などにも大
きなメリツトが期待できる。 本発明に係る耐光安定化剤を有効に利用できる
好適品としては、屋外で太陽光に直接さらされる
カラフルに着色された波板、雨樋、ルーフイング
材、シーリング材などの建築関連物、選択バサ
ミ、はきもの、パイプ、ホース、レジヤー用品、
自動車等乗物の外装品など、屋内で長時間光にさ
らされる電線、家電製品、OA機器を含む事務用
品、化粧板、浴槽始め大型及び小型各種容器、エ
スカレータハンドレール、玩具類など多くのもの
を挙げることができる。 以下、本発明の効果を実施例に説明するが、こ
の発明の範囲は実施例の記載の態様に限定される
ものではない。 実施例 実施例 1 クロロスルホン化ポリエチレン(米国Du Pont
社製ハイパロン40)100重量部に、軽質炭酸カル
シウム50重量部、チタン白15重量部、マグネシア
4重量部、ペンタエリスリトール3重量部、ノク
セラーTRA(ジペンタメチレンチウラムテトラス
ルフイドの大内新興化学工業株式会社商品名)2
重量部、C.I. Solvent33(キノリンイエローベー
ス)の黄色有機顔料4重量、各種安定剤化合物
0.5重量部〔ただし、2,6−ジ−t−ブチル−
4−メチルフエノール(以下、「BHT」と略す。)
は1.0重量部〕を練りロール機を用いて、通常の
加工方法で混練りした。この混練物を加熱プレス
で160℃×20分加硫し、150×150×2mmのシート
状加硫物を得た。このシート状加硫物から所定の
大きさのテストピースを切り取り、下記条件で光
暴露した。 サンシヤインウエザーメータ(黒板温度63℃、
降雨なし)で200時間暴露したときの結果は表−
1に示す通りである。 ただし、テストピースの光暴露前後の色差値
(ΔE* ab)を測定し、〔(安定剤化合物を添加したも
ののΔ* ab)/(無添加の標準のもののΔE* ab)〕×
100の値を算出して、耐光堅牢性改善の目安(表
−1〜5に示す「退色比率」)として比較した。 安定剤化合物を含まない標準加硫物の色差値
(ΔE* ab=28.5)を基準(100)とすると、本発明の
安定剤化合物(本発明例)は、32.5〜49.3%とな
り、これらの安定剤化合物の添加により着色顔料
の光退色が1/3〜1/2に抑制され、耐光堅牢性の向
上が認められる。 実施例 2 ポリ塩化ビニル(三井東圧化学(株)製ビニクロン
4000M)100重量部に赤色顔料C.I.Pigment 38 6
重量部、各種安定剤化合物0.5重量部を混合し、
加熱プレスにより175℃×5分で加熱成型し、150
×150×2mmのシートを作製した。これ以降、実
施例3と同一方法によりサンシヤインウエザーメ
ータ中で光暴露した結果は表−2に示す通りであ
る。 ただし、BHTの添加量は1.0重量部である。 表−2から、本発明の安定剤化合物添加により
耐光堅牢性の向上が認められる。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a colored polymer molding material containing an organic pigment as a main colorant, and more specifically, the present invention relates to a light-fast stabilizer for a colored polymer molding material. Pigments in polymers not only provide color, but also play the role of supplementing or reinforcing physical or chemical defects such as cracks and chalking on the surface of the polymer. Pigments used for this purpose are generally inorganic pigments that have excellent physical properties such as light resistance, hiding power, and solvent resistance. However, inorganic pigments have limitations in terms of color type, brightness, etc. For this reason, there is a demand for organic pigments, and currently organic pigments have no choice but to be used to prepare colored polymers with colors that are difficult to obtain with inorganic pigments, such as red or bright colors. . Organic pigments are thus rich in hue and have excellent clarity and coloring power. However, they are inferior to inorganic pigments in physical properties such as light resistance and hiding power, and in particular, their low light resistance is a major obstacle in their use. In recent years, organic pigments with improvements in these points have been developed, but they are very expensive, so
The reality is that it is only used in extremely limited fields. Therefore, if the light resistance of commonly used inexpensive organic pigments can be improved and durable polymer colored products can be obtained, it is also possible to improve the added value of the colored products. Resource saving·
This is also significant from the standpoint of energy conservation. The industry is strongly requesting the development of such technology. PRIOR ART Several means have been attempted in the past to make the color of organic pigments in colored polymer moldings more robust to light. For example, (1) pigments themselves can be made more durable against light, (2) UV absorbers can be incorporated into polymers to protect colored pigments from UV rays, and (3) organic pigments can be protected against light. Measures include using autooxidation inhibitors to suppress decomposition. As a means of (1), products have been developed that improve the drawbacks of organic pigments such as light resistance, but as mentioned above, such high-grade organic pigments are very expensive, so blue to green pigments have been developed. At present, with the exception of phthalocyanine-based pigments, they are used only in extremely limited fields and cannot be called general-purpose pigments. Salicylic acid esters and their derivatives, benzophenone derivatives, benzotriazole derivatives, etc. are well known as ultraviolet absorbers for (2), and antioxidants for (3) include sterically hindered phenolic compounds, amine derivatives, Compounds having radical scavenging ability or peroxide decomposition ability such as imidazole derivatives are known. Although some of these compounds do exhibit the effect of preventing discoloration and fading of organic pigments, their effectiveness is small and cannot be said to be sufficient. In addition, there has been a technique to add arylsulfonic acid metal salts to compositions for the purpose of preventing ultraviolet deterioration of photosensitive polymers (Japanese Unexamined Patent Application Publication No. 49-1999).
74226) or a specific benzenedithiolate metal complex to the coating material to improve the thermal stability of the material (JP-A-50-45027).
is also known. However, these techniques are not effective in improving the photobleaching properties of polymer compositions containing organic dyes. In recent years, photobleaching of organic dyes such as dyes has mainly been caused by oxidation by active singlet oxygen generated through the involvement of the photosensitizing effect of the dye itself and oxygen in the air (triplet oxygen). It has been shown that this happens because of the To prevent photobleaching caused by this mechanism, conventional ultraviolet absorbers and autooxidant inhibitors have little effect, and compounds that have the effect of deactivating active singlet oxygen, which is the main cause of photobleaching, are needed. be effective. Compounds that have this effect include 1,4-diazabicyclo[2,2,2]octane and β-carotenes, but these have problems with sublimation and photostability. It is unsuitable for practical use, and a light fastener for organic pigments that exhibits comprehensively excellent effects for use with polymers has yet to be found. (Please refer to the Effects section below.) Summary of the Invention The present invention aims to provide a solution to the above-mentioned problems, and attempts to achieve this aim by using an effective light fastener. That is. Therefore, according to the present invention, the light-fast stabilizer for polymeric colored molding agents containing an organic pigment as a main coloring agent with improved light resistance related to photobleaching is bisdithio-α represented by the general formula below. - It is characterized by containing a metal complex of diketone. [In the formula, R 1 and R 2 represent a methyl group, an ethyl group, or a phenyl group, and M 1 represents Ni or Co. ] Effects The light-fast stabilizer for polymer colored molding agents of the present invention has the following properties:
Improvements have been made in the above points. The present applicant has completed an invention for preventing paint fading by applying the compound according to the above general formula to a paint composition (Japanese Patent Application No. 59-209501). Also, screws (N
An example has been disclosed in which a (n-dodecylsalicylaldimine) metal complex is applied to prevent color fading of photographic film color images (Japanese Patent Application Laid-open No. 56-99340). However, no reports have yet been found in which such a metal complex is directly added to a colored polymer molding material using an organic pigment as the main coloring agent for the purpose of increasing light fastness related to photobleaching. The present invention is based on basic research on the photobleaching mechanism and prevention mechanism of organic dyes.The photobleaching prevention effect of this nickel complex absorbs the activation energy of singlet oxygen, which is the main cause of photobleaching, and deactivates it. He made the discovery that it is possible to do this, applied this invention to polymer molding materials, and succeeded in achieving the desired purpose. The stabilizer compound of the present invention, when contained in a small amount in a polymer, significantly increases the light fastness of a colored organic pigment, and by utilizing these properties, it can add value to colored polymers. It is possible to provide improvements that are advantageous in terms of industrial and resource saving by increasing the strength and durability. DETAILED DESCRIPTION OF THE INVENTION Stabilizer Compound The complex used in the present invention as a stabilizer against photobleaching of a colored polymer is a compound belonging to the general formula described above. That is, the metal species of the metal complex of bisdithio-α-diketone is Ni or Co. Among these, Ni is the best. This compound has a methyl group,
In addition to having an ethyl group as a substituent, it has a phenyl group, and this phenyl group is a lower alkyl group or a lower alkoxy group (both have about 1 to 6 carbon atoms)
It may be replaced with . Therefore,
The term "phenyl" with respect to this compound is to be understood as encompassing lower alkyl or lower alkyl substituted phenyl. In addition,
From the viewpoint of synthesis and cost, unsubstituted phenyl is preferred. All of these compounds are known,
Therefore, those synthesized by any method suitable for the purpose can be used. For example, the above compound, a bisdithiobenzyl metal complex, is synthesized by a known method. That is, benzoin and phosphorus pentasulfide are dissolved in dioxane or xylene and stirred at 95 to 110°C for about 15 hours. After cooling to room temperature, filter. A solution of nickel chloride dissolved in water in an amount of about 1/2 mole of the charged amount of benzoin is added to this mother liquor, and the mixture is stirred under reflux for 3 to 5 hours. Cool to room temperature and filter the precipitated crystals. This crude product is treated with an organic solvent such as dioxane, methanol, etc. and/or hot water to remove unreacted substances, side-reacted substances, etc., and then dried. The complex is obtained in solid or powdered form. Note that if cobalt chloride is used in place of nickel chloride in the above operation, a cobalt complex with a melting point of 300°C or higher can be obtained. Next, representative compounds will be illustrated along with their melting points or decomposition points, but the invention is not limited to these. Bis(2,3-dithiobutanedione)nickel
(Decomposition point 254℃) Bis(3,4-dithiohexanedione)nickel
(Decomposition point 112℃) Bis(dithiobenzyl)nickel
(Melting point 286℃) Bis(dithiobenzyl)cobalt
(Melting point: 300°C or higher) Bis(4,4'-dimethyldithiobenzyl)nickel (Decomposition point: 337°C) Among the above examples of compounds, those other than commercially available products were synthesized as prototypes, and all were analyzed by elemental analysis and infrared absorption spectrometry. The structure was confirmed. Use of stabilizer compound The "light-resistant stabilizer" of the present invention is a method in which the above-mentioned metal complex (stabilizer compound) is added to a commonly used polymer colored molding material.
It is used either as a species or as a combination of two or more species. The amount of the stabilizer compound of the present invention added is generally in the range of 0.1 to 10% by weight based on the polymer component.
Particularly preferred is 0.3 to 2% by weight. When added to chlorosulfonated polyethylene, the amount added is preferably about 0.3 to 1.5% by weight, since the stabilizer compound tends to slightly delay or speed up the vulcanization time if added too much. Although some of the stabilizer compounds according to the present invention exhibit a slight green color, within the above-mentioned addition amount range, there is hardly any behavior accompanied by a change in the color tone of the colored pigment, and it can be used with confidence. can. In the present invention, these stabilizer compounds may be used in combination with other antioxidants and ultraviolet absorbers. Known antioxidants that help prevent discoloration include 2,6-di-t-butyl-4-methylphenol, 2,2-methylenebis(4-methyl-6
-t-butylphenol), 4,4'-thiobis(3-methyl-6-t-butylphenol), 4,
Examples include phenol derivatives such as 4'-butylidene bis(6-t-butyl-m-cresol). By using these together, a greater effect of suppressing photobleaching may be obtained. Base polymer coloring composition As long as the stabilizer compound of the present invention is the above-mentioned specific metal complex and has an organic pigment as the main coloring agent, the base polymer coloring composition can be any suitable material. It can be something. In addition, the "base polymer coloring composition" here refers to
Refers to a polymer composition in which the stabilizer compound of the present invention is to be incorporated. Therefore, compositions containing known antioxidants such as the above-mentioned phenol derivatives, if necessary, are also considered to be the base polymer coloring compositions referred to in the present invention. Polymer compositions generally have very complex compositions, but the types of polymers to which the stabilizer compound of the present invention can be applied include polyolefins such as polyethylene, polypropylene, and polyvinyl chloride;
Preferred examples include polyurethanes, synthetic rubbers, etc., but are not limited thereto. As the organic pigment used as the main coloring agent of the polymer coloring composition of the present invention, CIPigment Red49
(Little Red), CI Pigment Red3 (Toluizone Red), CIPigment Red38 (Pyrazolone Red), CI Piment Red48 (Watching Red), CI Pigment Orange17 (Orange Lake)
In addition to red organic pigments such as CISolvent 33 (quinoline yellow base), many other yellow and blue organic pigments can be mentioned, and the present invention does not particularly limit the type of organic pigment used. However, since there are few suitable inorganic pigments with excellent light resistance, organic pigments have no choice but to be used.
It can be said that the merits of the present invention are greatest when applied to polymer compositions colored with red and yellow organic pigments, which are very frequently used. Also,
Inorganic pigments whose use has become difficult due to heavy metal pollution problems in recent years, such as yellow cadmium sulfide (CdS), which has been widely used for a long time, are subject to voluntary restrictions by users due to the toxicity of cadmium. In contrast, polymer colored products using alternative organic pigments (for example, those with a quinophthalone skeleton) were developed with the idea of replacing them with safe organic pigments even at the expense of light resistance.
Great benefits can also be expected when the stabilizer compound of the present invention is applied. Suitable products that can effectively utilize the light stabilizer according to the present invention include architectural-related materials such as colorfully colored corrugated boards, rain gutters, roofing materials, and sealing materials that are directly exposed to sunlight outdoors; Scissors, footwear, pipes, hoses, leisure supplies,
Exterior parts of vehicles such as automobiles, electric wires that are exposed to light indoors for long periods of time, home appliances, office supplies including office equipment, decorative boards, bathtubs and other large and small containers, escalator handrails, toys, and many other items. can be mentioned. Hereinafter, the effects of the present invention will be explained with reference to Examples, but the scope of the present invention is not limited to the embodiments described in the Examples. Examples Example 1 Chlorosulfonated polyethylene (Du Pont, USA)
100 parts by weight of Hypalon 40), 50 parts by weight of light calcium carbonate, 15 parts by weight of titanium white, 4 parts by weight of magnesia, 3 parts by weight of pentaerythritol, Noxeler TRA (Dipentamethylenethiuram tetrasulfide produced by Ouchi Shinko Chemical) Kogyo Co., Ltd. Product name) 2
Parts by weight, 4 weight parts of CI Solvent 33 (quinoline yellow base) yellow organic pigment, various stabilizer compounds
0.5 parts by weight [However, 2,6-di-t-butyl-
4-Methylphenol (hereinafter abbreviated as "BHT")
1.0 parts by weight] was kneaded using a kneading roll machine using a conventional processing method. This kneaded material was vulcanized in a hot press at 160° C. for 20 minutes to obtain a sheet-like vulcanized product measuring 150×150×2 mm. A test piece of a predetermined size was cut from this sheet-like vulcanizate and exposed to light under the following conditions. Sunshine weather meter (blackboard temperature 63℃,
The results for 200 hours of exposure (no rainfall) are shown in Table-
As shown in 1. However, the color difference value (ΔE * ab ) of the test piece before and after exposure to light is measured and calculated as [(Δ * ab of the one with added stabilizer compound) / (ΔE * ab of the standard one without additives)] ×
A value of 100 was calculated and compared as a measure of light fastness improvement ("fading ratio" shown in Tables 1 to 5). If the color difference value (ΔE * ab = 28.5) of a standard vulcanizate that does not contain a stabilizer compound is used as the standard (100), the stabilizer compound of the present invention (example of the present invention) has a value of 32.5 to 49.3%. By adding the agent compound, the photofading of the colored pigment is suppressed to 1/3 to 1/2, and the light fastness is improved. Example 2 Polyvinyl chloride (Viniclon manufactured by Mitsui Toatsu Chemical Co., Ltd.)
4000M) 100 parts by weight of red pigment CIPigment 38 6
parts by weight and 0.5 parts by weight of various stabilizer compounds,
Heat molded at 175℃ x 5 minutes using a heating press, 150℃
A sheet of 150 x 2 mm was prepared. Thereafter, the samples were exposed to light in a sunshine weather meter using the same method as in Example 3, and the results are shown in Table 2. However, the amount of BHT added is 1.0 parts by weight. From Table 2, it is recognized that the light fastness is improved by adding the stabilizer compound of the present invention.

【表】【table】

【表】【table】

【表】【table】

Claims (1)

【特許請求の範囲】 1 下記一般式()で表されるビスジチオ−α
−ジケトンの金属錯体からなることを特徴とす
る、高分子着色成形材用の耐光安定化剤。 〔式中、R1及びR2はメチル基、エチル基又はフ
エニル基を示し、M1はNi又はCoを示す。〕
[Claims] 1 Bisdithio-α represented by the following general formula ()
- A light stabilizer for colored polymer molding materials, characterized by comprising a metal complex of diketone. [In the formula, R 1 and R 2 represent a methyl group, an ethyl group, or a phenyl group, and M 1 represents Ni or Co. ]
JP11084486A 1986-05-16 1986-05-16 Light-resistant stabilized polymer colored composition Granted JPS62267360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11084486A JPS62267360A (en) 1986-05-16 1986-05-16 Light-resistant stabilized polymer colored composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11084486A JPS62267360A (en) 1986-05-16 1986-05-16 Light-resistant stabilized polymer colored composition

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP13386189A Division JPH02132133A (en) 1989-05-26 1989-05-26 Polymer coloring composition stable to light

Publications (2)

Publication Number Publication Date
JPS62267360A JPS62267360A (en) 1987-11-20
JPH0374704B2 true JPH0374704B2 (en) 1991-11-27

Family

ID=14546094

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11084486A Granted JPS62267360A (en) 1986-05-16 1986-05-16 Light-resistant stabilized polymer colored composition

Country Status (1)

Country Link
JP (1) JPS62267360A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5190576B2 (en) * 2009-08-25 2013-04-24 株式会社ピラミッド Method for improving light resistance of synthetic resin and synthetic resin product
JP5493600B2 (en) * 2009-08-31 2014-05-14 三菱電機ビルテクノサービス株式会社 Handrail for man conveyor and handrail for man conveyor
CN109438822B (en) * 2018-09-29 2021-06-11 云南曲靖塑料(集团)有限公司 Black mulching film for cigarettes and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4974226A (en) * 1972-10-16 1974-07-17
JPS5024344A (en) * 1973-02-26 1975-03-15
JPS5045027A (en) * 1973-08-28 1975-04-22
JPS54135837A (en) * 1977-09-21 1979-10-22 Scott Gerald Decomposition controllable polymer composition and film*and other products made therefrom
JPS5523119A (en) * 1978-08-04 1980-02-19 Kawaguchi Kagaku Kogyo Kk Preparation of granular rubber compounding ingredient
JPS5573710A (en) * 1978-11-28 1980-06-03 Japan Atom Energy Res Inst Preparation of molded article of flame-retardant and radiation-resistant polymer composition
JPS5921374A (en) * 1982-07-29 1984-02-03 Yuichi Imagawa Processing of eel bone
JPH0238145A (en) * 1988-07-29 1990-02-07 Iseki & Co Ltd Controller for running of tractor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4974226A (en) * 1972-10-16 1974-07-17
JPS5024344A (en) * 1973-02-26 1975-03-15
JPS5045027A (en) * 1973-08-28 1975-04-22
JPS54135837A (en) * 1977-09-21 1979-10-22 Scott Gerald Decomposition controllable polymer composition and film*and other products made therefrom
JPS5523119A (en) * 1978-08-04 1980-02-19 Kawaguchi Kagaku Kogyo Kk Preparation of granular rubber compounding ingredient
JPS5573710A (en) * 1978-11-28 1980-06-03 Japan Atom Energy Res Inst Preparation of molded article of flame-retardant and radiation-resistant polymer composition
JPS5921374A (en) * 1982-07-29 1984-02-03 Yuichi Imagawa Processing of eel bone
JPH0238145A (en) * 1988-07-29 1990-02-07 Iseki & Co Ltd Controller for running of tractor

Also Published As

Publication number Publication date
JPS62267360A (en) 1987-11-20

Similar Documents

Publication Publication Date Title
AU637868B2 (en) Photochromic composition
JPH08225679A (en) Latent light stabilizer
JP3366697B2 (en) Long wavelength ultraviolet absorber and method for producing the same
JPH1171356A (en) Triazine-based compound and ultraviolet light absorber
JPH0931067A (en) Stabilizer combination
SU1063290A3 (en) Composition for producing mass-dyed high-molecular organic polymeric material
US20090162307A1 (en) Photolatent Systems
JP3061308B2 (en) Stabilizer mixtures for compounds with photochromic activity
US5919944A (en) Polymerisable diketopyrrolopyrroles
JPH10316876A (en) New diketopyrrolopyrrole composition
US3700709A (en) Azomethine pigments
JPH0374704B2 (en)
EP0669330A1 (en) Benzotriazole dimers useful as U.V. absorbers
JP2956907B2 (en) New pigment
BE1012760A3 (en) Stabilized composition, compound content therein as stabilizing and use of this compound.
JPH0649832B2 (en) Novel pigment of amine salt of azo compound, method for producing the same, and method for coloring polymer organic material by using the same
JP4594522B2 (en) Process for the production of alkylthio and / or arylthio substituted diketodiarylpyrrolopyrroles
BR9902065B1 (en) TRIS-RESORCINIL TRIZINES, ITS USE, COMPOSITION UNDERSTANDING AND METHOD OF ORGANIC STABILIZATION AGAINST DAMAGING EFFECTS OF LIGHT, OXYGEN AND / OR HEAT
JPH0499B2 (en)
KR100393360B1 (en) New blue diketopyrrolopyrrole pigment
JP4450869B2 (en) Method for coloring high molecular weight organic materials and polycyclic pigments
KR950003399A (en) Particulate cyano-substituted diketopyrrolopyrrole pigments and methods for their preparation
US5378276A (en) Diketopyrrolopyrroles containing nitroxyl groups
US3389004A (en) Ultraviolet light stabilizers for plastic materials
US6107491A (en) Polymerizable diketopyrrolopyrroles