JPS585939B2 - Polyester material - Google Patents
Polyester materialInfo
- Publication number
- JPS585939B2 JPS585939B2 JP50042423A JP4242375A JPS585939B2 JP S585939 B2 JPS585939 B2 JP S585939B2 JP 50042423 A JP50042423 A JP 50042423A JP 4242375 A JP4242375 A JP 4242375A JP S585939 B2 JPS585939 B2 JP S585939B2
- Authority
- JP
- Japan
- Prior art keywords
- present
- flame retardant
- flame
- cyanuric acid
- molded product
- 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
Links
Description
【発明の詳細な説明】
本発明は、ポリエステル難燃性組成物に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to polyester flame retardant compositions.
詳しくは、樹脂が本来から有している物性と同等の物性
を有する、難燃性成型品を提供するポリエステル難燃性
組成物に関するものである。Specifically, the present invention relates to a polyester flame-retardant composition that provides flame-retardant molded products having physical properties equivalent to those originally possessed by resins.
ポリブチレンテレフタレート樹脂はその優れた物性及び
加工成型の容易さという点から数多くの用途に付されて
いるが、惜しいことに易燃性であるという大きな欠点を
有している。Polybutylene terephthalate resin is used in many applications because of its excellent physical properties and ease of processing and molding, but unfortunately it has the major drawback of being easily flammable.
この欠点を解消するために幾多の研究が費され、種々の
難燃化剤が開発された。In order to overcome this drawback, much research has been conducted and various flame retardants have been developed.
なかでもアンチモン化合物、ハロゲンを含有する特定化
合物及びこれらを併用したものは、難燃化効果が著しく
高いので、最も一般的に使用されている。Among these, antimony compounds, specific compounds containing halogens, and combinations thereof are most commonly used because they have extremely high flame retardant effects.
しかし、これら周知の難燃化剤を使用する場合、成型品
に難燃性をもたせるためには、成型品中に多量の、例え
ば２０〜４０重量％の難燃化剤を存在させなければなら
ない。However, when using these well-known flame retardants, in order to impart flame retardancy to the molded product, a large amount of the flame retardant, for example 20 to 40% by weight, must be present in the molded product. .
その結果、樹脂本来の有する物性を備えない成型品、と
くに耐衝撃強度の低下した成型品となる。As a result, a molded product that does not have the physical properties inherent to the resin, particularly a molded product with reduced impact strength, results.
そして更に、上記化合物はそれ自身有毒であるか、ある
いは分解時に発生するガス有毒なので、これを多量に含
有する成型品は公害問題を惹起する。Moreover, since the above-mentioned compounds are themselves toxic or the gases generated during decomposition are toxic, molded products containing large amounts of them pose a pollution problem.
本発明者らは上記事情に鑑み鋭意研究した結果、ポリブ
チレンテトフタレート樹脂にシアヌール酸またはその誘
導体を難燃化剤として存在させれば少量の存在量でも充
分成型品に難燃性をもたすことができることを見出し本
発明に到達した。The inventors of the present invention conducted intensive research in view of the above circumstances, and found that if cyanuric acid or its derivatives were present as a flame retardant in polybutylene tetophthalate resin, even a small amount of cyanuric acid or its derivatives would provide sufficient flame retardancy to the molded product. The present invention was achieved by discovering that it is possible to do this.
以下本発明を詳細に説明する。The present invention will be explained in detail below.
本発明において、難燃性組成物は、ポリブチレンテレフ
タレート樹脂と、一般式
で示される化合物（以下これをシアヌール酸化合物とい
う）とから形成される。In the present invention, the flame retardant composition is formed from a polybutylene terephthalate resin and a compound represented by the general formula (hereinafter referred to as a cyanuric acid compound).
そして、前示一般式で示される化合物が、難燃化剤とし
ての役割を果す。The compound represented by the above general formula serves as a flame retardant.
シアヌール酸は尿素を加熱分解すれば得られるが、尿素
の加熱分解物としてはその他にシアン酸、ビイウレット
、アンメリツド、アメリン、メラミン等が知られている
。Cyanuric acid can be obtained by thermally decomposing urea, and other known thermally decomposed products of urea include cyanic acid, biuret, ammelid, amerin, and melamine.
これらのうちシアヌール酸、メラミンを除く化合物は分
解温度が低く、成型時に分解するので難燃化剤としては
使用できない。Among these, compounds other than cyanuric acid and melamine have a low decomposition temperature and decompose during molding, so they cannot be used as flame retardants.
他方、メラミンは難燃化剤として有効であることが周知
であるが、その難燃化効果はシアヌール酸に比し低い。On the other hand, although melamine is well known to be effective as a flame retardant, its flame retardant effect is lower than that of cyanuric acid.
また尿素自体にも、難燃化効果があることが知られてい
る。It is also known that urea itself has a flame retardant effect.
しかしその効果は微少であり、かつ成型品の物性を著し
く悪くするので実用化の段階に到っておらず、従って尿
素から前示一般式に示される化合物の優れた難燃化効果
を予測することは不可能である。However, the effect is minimal and it significantly deteriorates the physical properties of the molded product, so it has not reached the stage of practical application.Therefore, it is difficult to predict the excellent flame retardant effect of the compound represented by the above general formula from urea. That is impossible.
シアヌール酸の構造式としては
の２つが考えられており、後者は通常インシアヌール酸
といわれているが、本発明にいうシアヌール酸は上記２
構造のいづれであってもよい。Two structural formulas of cyanuric acid are considered, and the latter is usually referred to as incyanuric acid, but the cyanuric acid referred to in the present invention has the above two structural formulas.
It may have any structure.
シアネール酸化合物は、本発明組成物中に通常０．５〜
２０重量％、最適には１〜１０重量％含有するように添
加される。The cyanate compound is usually contained in the composition of the present invention in an amount of 0.5 to
It is added in an amount of 20% by weight, preferably 1 to 10% by weight.
本発明においては、２０重量％以下という従来の難燃化
剤使用量にくらべ少ない量であっても、充分に難燃化効
果を挙げることができ、その結果樹脂本来の有する物性
の低減を最小限度とすることができる。In the present invention, a sufficient flame retardant effect can be achieved even if the amount used is less than 20% by weight, compared to the conventional amount of flame retardant used, and as a result, the reduction in the physical properties inherent in the resin is minimized. It can be set as a limit.
本発明組成物は、常法に従ってポリブチレンテレフタレ
ート樹脂と、シアヌール酸化合物とをブレンドすること
により製造される。The composition of the present invention is produced by blending a polybutylene terephthalate resin and a cyanuric acid compound according to a conventional method.
通常練り込みにより製造されるが、練り込みにあたって
常温でシアヌール酸化合物が固体の場合には、シアヌー
ル酸化合物を微細に粉砕するのが好ましい。It is usually produced by kneading, but if the cyanuric acid compound is solid at room temperature during kneading, it is preferable to finely grind the cyanuric acid compound.
勿論、本発明組成物は他の難燃化剤、発泡剤、帯電防止
剤、着色剤、滑剤、核剤あるいはガラス繊維、タルク、
アスベスト、クレー、ウイスカーのような充填剤を含ん
でいてもよい。Of course, the composition of the present invention may also contain other flame retardants, blowing agents, antistatic agents, colorants, lubricants, nucleating agents, glass fibers, talc,
It may also contain fillers such as asbestos, clay, and whiskers.
このようにして得られる本発明組成物は、周知の種々の
方法によりフイルム、シート、フィラメントその他各種
の成型品に成型される。The composition of the present invention thus obtained is molded into films, sheets, filaments, and various other molded products by various well-known methods.
成型法としては押出成型、射出成型、圧縮成型、吹き込
み成型いづれもが採用できる。As the molding method, extrusion molding, injection molding, compression molding, and blow molding can all be used.
以上本発明について詳述したが、本発明組成物により得
られる成型品は従来に比べ、難燃化剤含量が少ない場合
であっても顕著な難燃性を示す。The present invention has been described in detail above, and the molded product obtained from the composition of the present invention exhibits remarkable flame retardancy compared to conventional products even when the content of flame retardant is small.
そして成型品中の難燃化剤含量を少なくすることが可能
なことにより、次のような利点が得られる。By being able to reduce the content of flame retardant in the molded product, the following advantages can be obtained.
まず第１に、ポリブチレンテレフタレート樹脂本来の物
性を備えた難燃性成型品を得ることができる。First of all, it is possible to obtain a flame-retardant molded product that has the physical properties inherent to polybutylene terephthalate resin.
第２に、本発明において難燃化剤として使用される化合
物は、公害問題を惹起するようなものではない。Second, the compounds used as flame retardants in the present invention do not pose a pollution problem.
実施例 １
ポリブチレンテレフタレートに、表に示す量のシアヌー
ル酸をブレンドし、３ｍｍ×１２ｍｍ×１６５ｍｍの燃
焼試験片を射出成型した。Example 1 Polybutylene terephthalate was blended with cyanuric acid in the amount shown in the table, and a combustion test piece of 3 mm x 12 mm x 165 mm was injection molded.
この試験片を、ＵＬ−９４に準拠し、クランプにて垂直
に保持し、下端に炎長２ｃｍのガスを１０秒間接炎した
。This test piece was held vertically with a clamp in accordance with UL-94, and a gas with a flame length of 2 cm was blown at the lower end for 10 seconds.
この操作を５個の試験片について行ない、その結果を表
に示した。This operation was performed on five test pieces, and the results are shown in the table.
比較例 １
ポリブチレンテレフタレートに、難燃化剤を伺も加えな
い場合について、実施例１と同様に試験して表に示す結
果を得た。Comparative Example 1 A test was conducted in the same manner as in Example 1, except that no flame retardant was added to polybutylene terephthalate, and the results shown in the table were obtained.
Claims (1)
される化合物を含有してなるポリエステル難燃性粗成物
。1 A polyester flame-retardant crude product containing a polybutylene terephthalate resin and a compound represented by the general formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50042423A JPS585939B2 (en) | 1975-04-08 | 1975-04-08 | Polyester material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50042423A JPS585939B2 (en) | 1975-04-08 | 1975-04-08 | Polyester material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50160363A JPS50160363A (en) | 1975-12-25 |
| JPS585939B2 true JPS585939B2 (en) | 1983-02-02 |
Family
ID=12635640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50042423A Expired JPS585939B2 (en) | 1975-04-08 | 1975-04-08 | Polyester material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS585939B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001247751A (en) * | 1999-12-28 | 2001-09-11 | Daicel Chem Ind Ltd | Flame-retardant resin composition |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5796040A (en) * | 1980-12-08 | 1982-06-15 | Polyplastics Co | Polyester resin composition having resistance to discoloration by light (color fastness to light) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4839778A (en) * | 1971-09-18 | 1973-06-11 | ||
| JPS4916795A (en) * | 1972-06-02 | 1974-02-14 |
-
1975
- 1975-04-08 JP JP50042423A patent/JPS585939B2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4839778A (en) * | 1971-09-18 | 1973-06-11 | ||
| JPS4916795A (en) * | 1972-06-02 | 1974-02-14 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001247751A (en) * | 1999-12-28 | 2001-09-11 | Daicel Chem Ind Ltd | Flame-retardant resin composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50160363A (en) | 1975-12-25 |
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