JPH03137145A - Ethylene-vinyl acetate copolymer composition - Google Patents
Ethylene-vinyl acetate copolymer compositionInfo
- Publication number
- JPH03137145A JPH03137145A JP27383489A JP27383489A JPH03137145A JP H03137145 A JPH03137145 A JP H03137145A JP 27383489 A JP27383489 A JP 27383489A JP 27383489 A JP27383489 A JP 27383489A JP H03137145 A JPH03137145 A JP H03137145A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl acetate
- acetate copolymer
- ethylene
- copolymer
- basic metal
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 22
- 239000005038 ethylene vinyl acetate Substances 0.000 title abstract description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 title abstract description 5
- 239000002245 particle Substances 0.000 claims abstract description 25
- 229910052728 basic metal Inorganic materials 0.000 claims abstract description 15
- 150000003818 basic metals Chemical class 0.000 claims abstract description 15
- 229920001577 copolymer Polymers 0.000 claims description 28
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 13
- 239000005977 Ethylene Substances 0.000 claims description 13
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract description 9
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract description 7
- 239000000920 calcium hydroxide Substances 0.000 abstract description 7
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 7
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 4
- 239000000347 magnesium hydroxide Substances 0.000 abstract description 4
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- 230000001629 suppression Effects 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 30
- 238000000034 method Methods 0.000 description 12
- 235000019645 odor Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- 241000519995 Stachys sylvatica Species 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000000052 vinegar Substances 0.000 description 2
- 235000021419 vinegar Nutrition 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009820 dry lamination Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はエチレン・酢酸ビニル共重合体組成物に関し、
特にフィルム加工性の改善されたエチレン・酢酸ビニル
共重合体組成物に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an ethylene/vinyl acetate copolymer composition,
In particular, the present invention relates to an ethylene/vinyl acetate copolymer composition with improved film processability.
【従来の技術ｌ
エチレン・酢酸ビニル共重合体は有用な高分子材料であ
り１例えば酢酸ビニル含有量が１〜４０重量％程度のも
のが日用成形品として、また、酢酸ビニル含有量が１０
〜３０重量％程度のものは農業用フィルムとして、さら
に、酢酸ビニル含有量が１〜１０重量％のものが型袋用
フィルムやドライラミネーション用原反フィルムとして
、それぞれ利用されている。[Prior art l] Ethylene/vinyl acetate copolymer is a useful polymeric material.1 For example, those with a vinyl acetate content of 1 to 40% by weight are used as everyday molded products, and those with a vinyl acetate content of 10% by weight are used as everyday articles.
Those with a vinyl acetate content of about 1 to 10% by weight are used as agricultural films, and those with a vinyl acetate content of about 1 to 10% by weight are used as films for mold bags and raw films for dry lamination.
しかし、当該共重合体には、その製造当初からの、或は
その加工工程などで加えられる熱や力によって発生した
遊離酢酸が含まれていることが避は難（、この遊離酢酸
はロール、バンバリー、押出機等の通常の混線機を用い
た処理工程で大半（８０〜９５％）は飛散するとはいえ
、なお残存ないし新たに発生するものもあり、そのため
、臭気の発生やこれと接触する機器での腐食の誘発等の
問題がある。However, it is inevitable that the copolymer contains free acetic acid generated from the beginning of its manufacture or from heat and force applied during the processing process (this free acetic acid is Although the majority (80-95%) is dispersed in the treatment process using normal mixing machines such as Banbury and extruders, some remain or are newly generated, resulting in the generation of odors and the risk of contact with this. There are problems such as induction of corrosion in equipment.
この臭気の発生や機器に対する腐食の誘発の原因である
遊離酢酸量の低減を目的として、従来でも例えば水酸化
カルシウム、水酸化マグネシウムなどの塩基性金属水酸
化物を当該共重合物に添加することによって、遊離酢酸
を酢酸塩にする方法が提案されている（特公昭４９−１
３６１６号、同５１１０２６４号各明細書）。In order to reduce the amount of free acetic acid that causes this odor and corrosion of equipment, basic metal hydroxides such as calcium hydroxide and magnesium hydroxide have traditionally been added to the copolymer. proposed a method of converting free acetic acid into acetate (Special Publication No. 49-1).
3616 and 5110264).
これらの方法は、エチレン・酢酸ビニル共重合体の遊離
酢酸含有量の低減に効果的であるが、実際の添加に当た
っては、添加された塩基性金属水酸化物のすべてが遊離
酢酸と反応して酢酸塩となるとは限らないので、一般的
には、効果の安全性を見込んで、酢酸塩にするために必
要な理論量の１．５〜２倍程度の、過剰の塩基性金属水
酸化物が添加されている。These methods are effective in reducing the free acetic acid content of the ethylene/vinyl acetate copolymer, but in actual addition, all of the added basic metal hydroxide reacts with the free acetic acid. Generally, in order to ensure the safety of the effect, an excess of basic metal hydroxide is used, which is about 1.5 to 2 times the theoretical amount required to convert it into acetate. is added.
［発明が解決しようとする課題１
しかしながら、上記の配合組成物では１粒子径の大きい
塩基性金属水酸化物が、遊離酢酸との反応に与らない余
剰分としてそのまま残存しており、そのため、フィルム
加工時にフィルム加工機のグイ出口において摩擦帯電し
、このものからフィルム中の塩基性金属水酸化物からダ
イにスパークしてフィルムに白傷が発生することが判明
した。この白傷の発生は、成形加工時のシェアレートＵ
ｌ断速度）が大きいほど顕著となる。[Problem to be Solved by the Invention 1] However, in the above blended composition, the basic metal hydroxide with a large particle size remains as it is as a surplus that does not participate in the reaction with free acetic acid. It was found that triboelectrification occurs at the goo exit of the film processing machine during film processing, and this causes sparks from the basic metal hydroxide in the film to the die, causing white scratches on the film. The occurrence of these white scratches is due to the shear rate U during molding process.
The larger the rupture speed), the more noticeable it becomes.
また、フィルム中に残存する余剰の塩基性金属水酸化物
は、新たな臭気発生源となることも判明した。この臭い
は、塩基性金属水酸化物の粒子径にあまり影響されず、
フィルム中に残存する塩基性金属水酸化物の余剰量が多
くなるほど顕著となる。It has also been found that the excess basic metal hydroxide remaining in the film becomes a new source of odor. This odor is not significantly affected by the particle size of the basic metal hydroxide;
The problem becomes more noticeable as the excess amount of basic metal hydroxide remaining in the film increases.
本発明の目的は、このような問題点を解決し、加工性、
臭気の点で改善されたエチレン・酢酸ビニル共重合体組
成物を提供することにある。The purpose of the present invention is to solve these problems and improve workability,
An object of the present invention is to provide an ethylene/vinyl acetate copolymer composition that is improved in odor.
［課題を解決するための手段］
本発明は、上記の問題が、エチレン・酢酸ビニル共重合
体に添加する塩基性金属水酸化物の粒子径に関係し、特
定の粒子径以下のものを用いることにより上記の問題を
解決したものである。[Means for Solving the Problems] The present invention solves the above problem in relation to the particle size of the basic metal hydroxide added to the ethylene/vinyl acetate copolymer, and solves the problem by using a particle size below a specific particle size. This solves the above problem.
すなわち１本発明の組成物は、エチレン・酢酸ビニル共
重合体に平均粒子径が５ｕｌＩ＋以下の塩基性金属水酸
化物を重量基準で１０〜５０００ｐｐｍ添加したことを
特徴とするものである。That is, the composition of the present invention is characterized in that 10 to 5000 ppm by weight of a basic metal hydroxide having an average particle diameter of 5 ulI+ or less is added to an ethylene/vinyl acetate copolymer.
エチレン・酢酸ビニル共電Ａ
本発明で用いるエチレン・酢酸ビニル共重合体としては
、酢酸ビニル含有量が０．１重量％以上のものであれば
よく、０．５〜４０重量％のものが好ましい、この当該
共重合体は、例えば３０重量％以下の他の共単量体成分
を含む多成分共重合体であってもよい、また、この共重
合体は、この種の共重合体に通常配合し得る補助成分例
えば安定剤、着色料、充填剤などを含むものであっても
よい、さらにこの共重合体は、例えば低密度ないし高密
度ポリエチレン、ポリプロピレンなどの他のポリオレフ
ィンや、その他の重合体との混合物の状態にあってもよ
い、この混合物中の共重合体の含量は、酢酸ビニル含有
量が上記の値となるような任意のものであり得る。特に
押出フィルム用としては、この共重合体のＶＦＲが０．
１〜３０ｇ／１０分のものが好ましい。Ethylene/vinyl acetate copolymer A The ethylene/vinyl acetate copolymer used in the present invention may have a vinyl acetate content of 0.1% by weight or more, preferably 0.5 to 40% by weight. , the copolymer may be a multicomponent copolymer containing, for example, up to 30% by weight of other comonomer components; The copolymer may also contain auxiliary components such as stabilizers, colorants, fillers, etc. The copolymer may also contain other polyolefins such as low-density to high-density polyethylene, polypropylene, and other polymers. The content of the copolymer in this mixture, which may be in a mixture with the copolymer, can be any such that the vinyl acetate content is at the above-mentioned value. Especially for extruded films, the VFR of this copolymer is 0.
1 to 30 g/10 minutes is preferable.
塩 金
本発明に用いる塩基性金属水酸化物は、例えば水酸化カ
ルシウム、水酸化マグネシウムが好適であり、平均粒子
径が５１１ｆｆ＋以下、好ましくは３１μｍ以下のもの
であればよいにのものは３０１Ｉｍ以上、特に２０ｕｒ
ｎ以上の粒径物を実質的に含まないものが好ましい、平
均粒子径が上記より大きいと効果が奏されない、また、
３０μｍより大きい粒子怪物は、遊離酢酸との反応性が
劣る傾向にあり、そのまま残存しやすい、そのため、前
記した理由により問題を発生させることとなり易い。Salt Gold The basic metal hydroxide used in the present invention is preferably, for example, calcium hydroxide or magnesium hydroxide, and has an average particle size of 511 ff+ or less, preferably 31 μm or less, but those with an average particle size of 301 Im or more are suitable. , especially 20ur
It is preferable that the particles do not substantially contain particles with a particle diameter of n or more; if the average particle diameter is larger than the above, the effect will not be achieved;
Particle monsters larger than 30 μm tend to have poor reactivity with free acetic acid and tend to remain as they are, which tends to cause problems for the reasons mentioned above.
このような限定された粒子径のものの製造方法としては
、一般的には分級により篩い分けされる。また、必要に
応じ機械粉砕してから分級することも可能である。As a method for producing particles having such a limited particle size, the particles are generally sieved by classification. Furthermore, if necessary, it is also possible to mechanically crush and then classify.
ｙ童
本発明の組成物において、エチレン・酢酸ビニル共重合
体に対する塩基性金属水酸化物の具体的な添加量は、当
該共重合体中の酢酸ビニル含有量、当該共重合体の重合
後の処理の度合い、添加方法などにより異なるので、添
加時の対象共重合体中の遊離酢酸量に応じて決定すべき
であるが、通常は、当該共重合体に対し１０〜５０００
ｐｐｍ （重量基準）、好ましくは１５〜４０００ｐ
ｐｍの添加が有効である。また、この添加物は２種以上
混合して使用してもよい。In the composition of the present invention, the specific amount of basic metal hydroxide added to the ethylene/vinyl acetate copolymer is based on the vinyl acetate content in the copolymer and the amount after polymerization of the copolymer. It should be determined according to the amount of free acetic acid in the target copolymer at the time of addition, as it varies depending on the degree of treatment, addition method, etc., but usually 10 to 5000
ppm (by weight), preferably 15-4000p
Addition of pm is effective. Further, two or more kinds of these additives may be used in combination.
添加は、当該共重合体製造時の造粒工程、混線工程、フ
ィルム加工工程のいずれにおいても可能である、また、
添加方法は、均一な分触が得られるならば、任意な方法
が採用でき、当該共重合体に添加物を直接又はマスター
バッチの形で添加して練り込むなど、既知の添加方法が
いずれも利用可能である。ａｍａ度は、一般に１００〜
２５０℃程度が好ましい。It can be added in any of the granulation process, cross-wire process, and film processing process during the production of the copolymer, and
Any known addition method can be used as long as a uniform distribution can be obtained, and any known addition method can be used, such as adding the additive directly to the copolymer or kneading it in the form of a masterbatch. Available. AMA degree is generally 100~
The temperature is preferably about 250°C.
〔実施例１
実施例１及び２
エチレン・酢酸ビニル共重合体Ａ及びＢ（ＭＦＲＯ，５
ｇ７１０分、酢酸ビニル含有量がそれぞれ５重量％及び
１５重量％）のそれぞれに、混線ロールを用いて平均粒
子径が５μｍで最大粒径が１９μｍの水酸化カルシウム
をそれぞれ５０口ｐｐ層（重量）添加し、混練して組成
物Ａ及びＢを得た。[Example 1 Examples 1 and 2 Ethylene-vinyl acetate copolymer A and B (MFRO, 5
g710 minutes, vinyl acetate content is 5% by weight and 15% by weight, respectively), and a 50 pp layer (by weight) of calcium hydroxide with an average particle size of 5 μm and a maximum particle size of 19 μm using a mixed wire roll. Compositions A and B were obtained by adding and kneading.
これらの組成物を９０＋ａｍ径のインフレーションフィ
ルム加工機を用いて、２００℃でタイ出口のシェアレー
ト７ｏｓｅｃ−’にて各５ｈｍ厚みのインフレーション
フィルムに加工した。These compositions were processed into blown films each having a thickness of 5 hm at 200°C and a tie exit shear rate of 7 osec-' using a 90+am diameter blown film processing machine.
組成物Ａ及びＢともインフレーションフィルム加工時、
スパークによるフィルムの白傷発生は全く起こらなかっ
た。また組成物Ａ及びＢのフィルム中の酢ｆＭ濃度はそ
れぞれ１０ｐｐｎ＋及び２５ｐｐｍの少量であった。During blown film processing for both compositions A and B,
There were no white spots on the film caused by sparks. Also, the vinegar fM concentrations in the films of Compositions A and B were as low as 10 ppn+ and 25 ppm, respectively.
実施例３及び４
実施例１及び２におい−て、水酸化カルシウムの代わり
に平均粒子径か２μｍで最大粒径が８ｇａ＋の水酸化マ
グネシウムを用いた他は実施例１及び２と同様の方法で
組成物Ｃ及びＤのインフレーションフィルムをそれぞれ
得た。Examples 3 and 4 In Examples 1 and 2, the same method as in Examples 1 and 2 was used except that magnesium hydroxide with an average particle size of 2 μm and a maximum particle size of 8 ga+ was used instead of calcium hydroxide. Blown films of compositions C and D were obtained, respectively.
組成物Ｃ及びＤともインフレーションフィルム加工時、
スパークによるフィルムの白傷発生は全く起こらなかっ
た。また組成物Ｃ及びＤのフィルム中の酢ｒＭａ度ハソ
ｈ ｆ ｈ ｉ２ｐｐｍ 及Ｕ ２８ｐｐｍ （７）
少量であった。For both compositions C and D, during blown film processing,
There were no white spots on the film caused by sparks. In addition, the vinegar rMa degree in the films of compositions C and D is h f h i2 ppm and U 28 ppm (7)
It was a small amount.
比較例１〜２
実施例１及び２において、水酸化カルシウムを平均粒子
径がＩＯＢで最大粒径が５１）＋ｍの水酸化カルシウム
に変更した他は実施例１及び２と同様の方法で、組成物
Ｅ及びＦのインフレーションフィルムをそれぞれ得た。Comparative Examples 1 to 2 In Examples 1 and 2, the composition was prepared in the same manner as in Examples 1 and 2, except that the calcium hydroxide was changed to calcium hydroxide with an average particle size of IOB and a maximum particle size of 51)+m. Blown films of products E and F were obtained, respectively.
組成物Ｅ及びＦは、どちらもインフレーションフィルム
加工時、スパークによるフィルムの白傷発生が起こった
。また組成物Ｅ及びＦのフィルム中の酢酸濃度はそれぞ
れ５０ｐｐｍ及びｔｔｏｐｐｍと多量であった。Compositions E and F both caused white scratches on the film due to sparks during blown film processing. Furthermore, the acetic acid concentrations in the films of Compositions E and F were as high as 50 ppm and ttoppm, respectively.
【発明の効果］
本発明によるエチレン・酢酸ビニル共重合体組成物は、
フィルム加工時に発生するスパーク及びそれによる白傷
の問題を解決できるのみならず。[Effect of the invention] The ethylene/vinyl acetate copolymer composition according to the present invention has
Not only can it solve the problem of sparks that occur during film processing and the white scratches caused by them.
臭気の発生をも大巾に抑制することが可能となった点で
実用上極めて意義のあるものである。This is of great practical significance in that it has become possible to greatly suppress the generation of odors.
Claims (1)
５μｍ以下の塩基性金属水酸化物を重量基準で１０〜５
０００ｐｐｍ添加したことを特徴とするエチレン・酢酸
ビニル共重合体組成物。(1) 10 to 5 by weight basic metal hydroxide with an average particle size of 5 μm or less is added to the ethylene/vinyl acetate copolymer.
An ethylene/vinyl acetate copolymer composition characterized in that 000 ppm of the copolymer is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27383489A JPH03137145A (en) | 1989-10-23 | 1989-10-23 | Ethylene-vinyl acetate copolymer composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27383489A JPH03137145A (en) | 1989-10-23 | 1989-10-23 | Ethylene-vinyl acetate copolymer composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03137145A true JPH03137145A (en) | 1991-06-11 |
Family
ID=17533196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27383489A Pending JPH03137145A (en) | 1989-10-23 | 1989-10-23 | Ethylene-vinyl acetate copolymer composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03137145A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009040951A (en) * | 2007-08-10 | 2009-02-26 | Bridgestone Corp | Method for producing sealing film for solar cell |
| JP2009179810A (en) * | 2009-05-20 | 2009-08-13 | Bridgestone Corp | Pair of sealing film for solar cell |
| EP2262001A1 (en) * | 2008-03-21 | 2010-12-15 | Bridgestone Corporation | Pair of sealing films and solar battery using the pair of sealing films |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4913616A (en) * | 1972-05-19 | 1974-02-06 | ||
| JPS59226037A (en) * | 1983-06-08 | 1984-12-19 | Kyowa Chem Ind Co Ltd | Resin composition for agricultural film |
| JPS60181147A (en) * | 1984-02-29 | 1985-09-14 | Dainippon Printing Co Ltd | Film for radiation sterilization package |
| JPS62104854A (en) * | 1985-10-31 | 1987-05-15 | Ube Ind Ltd | Flame-retardant resin composition |
| JPH01234436A (en) * | 1988-03-14 | 1989-09-19 | Kounoshima Kagaku Kogyo Kk | Inorganic flame-retardant for thermoplastic resin |
| JPH0320908A (en) * | 1989-06-16 | 1991-01-29 | Hitachi Cable Ltd | Flame retardant electric wire and cable |
-
1989
- 1989-10-23 JP JP27383489A patent/JPH03137145A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4913616A (en) * | 1972-05-19 | 1974-02-06 | ||
| JPS59226037A (en) * | 1983-06-08 | 1984-12-19 | Kyowa Chem Ind Co Ltd | Resin composition for agricultural film |
| JPS60181147A (en) * | 1984-02-29 | 1985-09-14 | Dainippon Printing Co Ltd | Film for radiation sterilization package |
| JPS62104854A (en) * | 1985-10-31 | 1987-05-15 | Ube Ind Ltd | Flame-retardant resin composition |
| JPH01234436A (en) * | 1988-03-14 | 1989-09-19 | Kounoshima Kagaku Kogyo Kk | Inorganic flame-retardant for thermoplastic resin |
| JPH0320908A (en) * | 1989-06-16 | 1991-01-29 | Hitachi Cable Ltd | Flame retardant electric wire and cable |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009040951A (en) * | 2007-08-10 | 2009-02-26 | Bridgestone Corp | Method for producing sealing film for solar cell |
| EP2262001A1 (en) * | 2008-03-21 | 2010-12-15 | Bridgestone Corporation | Pair of sealing films and solar battery using the pair of sealing films |
| EP2262001A4 (en) * | 2008-03-21 | 2014-04-09 | Bridgestone Corp | Pair of sealing films and solar battery using the pair of sealing films |
| JP2009179810A (en) * | 2009-05-20 | 2009-08-13 | Bridgestone Corp | Pair of sealing film for solar cell |
| JP4522478B2 (en) * | 2009-05-20 | 2010-08-11 | 株式会社ブリヂストン | A pair of sealing films for solar cells |
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