JPH0625005B2 - Intermediate film composition for safety laminated glass - Google Patents
Intermediate film composition for safety laminated glassInfo
- Publication number
- JPH0625005B2 JPH0625005B2 JP22408686A JP22408686A JPH0625005B2 JP H0625005 B2 JPH0625005 B2 JP H0625005B2 JP 22408686 A JP22408686 A JP 22408686A JP 22408686 A JP22408686 A JP 22408686A JP H0625005 B2 JPH0625005 B2 JP H0625005B2
- Authority
- JP
- Japan
- Prior art keywords
- olefin
- laminated glass
- mol
- safety laminated
- film composition
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
Landscapes
- Adhesives Or Adhesive Processes (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Joining Of Glass To Other Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】 Ａ．産業上の利用分野 本発明は安全合せガラス用中間膜組成物として優れた性
能を有する、α−オレフイン変性ポリビニルアセタール
樹脂に関する。Detailed Description of the Invention A. TECHNICAL FIELD The present invention relates to an α-olefin modified polyvinyl acetal resin having excellent properties as an interlayer film composition for safety laminated glass.
Ｂ．従来技術 従来より、ポリビニルアルコール（以下ＰＶＡと略記す
る）をアセタール化して得られるポリビニルアセター
ル、なかんずくポリビニルブチラールは、可塑剤の添加
により可塑化され、更にシート状に成型され、自動車、
航空機あるいは建築物の窓ガラス等に使用される安全合
せガラスの中間膜として広く使用されている。しかしな
がら近年、安全合せガラスの強度性能に対する要求は益
々高くなり、特に通常のポリビニルアルコールから得ら
れるポリビニルアセタール樹脂を用いる従来の製品にお
いては、低温あるいは高温時における耐貫通強度の低下
が大きく、この点を改良するため、中間膜用樹脂あるい
はそれに対する添加物について多くの検討がなされてい
るが、現在なお満足するものは見い出されていない。B. 2. Description of the Related Art Conventionally, polyvinyl acetal obtained by acetalizing polyvinyl alcohol (hereinafter abbreviated as PVA), in particular polyvinyl butyral, is plasticized by adding a plasticizer, and further molded into a sheet to be used for automobiles.
It is widely used as an interlayer film for safety laminated glass used for window glass of aircraft or buildings. However, in recent years, the demand for the strength performance of safety laminated glass has become higher and higher, and particularly in the conventional products using the polyvinyl acetal resin obtained from ordinary polyvinyl alcohol, there is a large decrease in the penetration resistance at low temperature or high temperature. In order to improve the above, many studies have been made on resins for interlayer films or additives thereto, but none have been found to be satisfactory at present.
Ｃ．発明が解決しようとする問題点 本発明者らはポリビニルアセタール樹脂の原料となるＰ
ＶＡの化学変性に関して広範囲に検討を行ない、得られ
た変性ＰＶＡを用いてポリビニルアセタール樹脂を製造
し評価した結果、α−オレフイン単位を１〜１０モル％
含有する変性ＰＶＡより誘導した、 の繰り返しからなり、かつｋ，ｌ，ｍ，ｎが なる組成式を満足するα−オレフイン変性ポリビニルア
セタール樹脂は、低温から高温まで広い温度領域におい
て優れた耐貫通強度を有し、同時にガラスとの接着性に
もすぐれていることを見い出し、本発明を完成するに到
つた。C. Problems to be Solved by the Invention The present inventors have found that P, which is a raw material for polyvinyl acetal resin
After extensively studying the chemical modification of VA, the modified PVA thus obtained was used to produce and evaluate a polyvinyl acetal resin, and as a result, 1 to 10 mol% of α-olefin unit was obtained.
Derived from modified PVA containing And k, l, m, n are It was found that the α-olefin modified polyvinyl acetal resin satisfying the following compositional formula has excellent penetration resistance in a wide temperature range from low temperature to high temperature, and at the same time has excellent adhesiveness with glass, It came to completion.
Ｄ．問題点を解決するための手段 本発明において用いられる、 の繰り返しからなり、かつｋ，ｌ，ｍ，ｎが なる組成式を満足するα−オレフイン変性ポリビニルア
セタール樹脂の原料として用いられるα−オレフイン単
位を１〜１０モル％含有する変性ＰＶＡは、ビニルエス
テルとα−オレフインとの共重合体をけん化することに
よつて得ることが出きる。D. Means for Solving Problems Used in the present invention, And k, l, m, n are The modified PVA containing 1 to 10 mol% of an α-olefin unit used as a raw material of an α-olefin modified polyvinyl acetal resin satisfying the following composition formula is for saponifying a copolymer of vinyl ester and α-olefin. You can get what you want.
ビニルエステルとしては蟻酸ビニル，酢酸ビニル、プロ
ピオン酸ビニル等が挙げられるが、酢酸ビニルが経済的
にみて好ましい。Examples of the vinyl ester include vinyl formate, vinyl acetate, vinyl propionate and the like, and vinyl acetate is preferable from the economical point of view.
α−オレフインとしてはエチレン、プロピレン、ｎ−ブ
テン、イソブチレン等が挙げられるが、得られた変性Ｐ
ＶＡをアセタール化する際、該PVAが水溶性である方が
得られるポリビニルアセタールの均一性が高いため好ま
しく、上述のα−オレフインの中では水溶性になりやす
いという点でエチレンが最も好ましい。Examples of α-olefin include ethylene, propylene, n-butene, isobutylene, etc., and the obtained modified P
When VA is acetalized, it is preferable that the PVA is water-soluble because the polyvinyl acetal obtained is highly uniform, and ethylene is the most preferable among the above-mentioned α-olefins because it tends to be water-soluble.
α−オレフインの含有量としては１〜１０モル％である
ことが必要である。好ましい範囲は２〜８モル％であ
る。α−オレフインの含有量が１モル％未満の場合には
得られるポリビニルアセタール樹脂組成物を用いる安全
合せガラスの低温における耐貫通強度が低下し、またα
−オレフインの含有量が１０モル％を越える場合には高
温における耐貫通強度が低下するため好ましくない。It is necessary that the content of α-olefin be 1 to 10 mol%. The preferred range is 2 to 8 mol%. When the content of α-olefin is less than 1% by mole, the resistance to penetration at low temperature of the safety laminated glass using the obtained polyvinyl acetal resin composition is lowered, and α
-When the content of olefin is more than 10 mol%, the penetration resistance at high temperature is deteriorated, which is not preferable.
けん化度は通常７０〜100モル％の範囲が好ましい。よ
り好ましくは80〜98.5モル％である。また重合度は通常
100〜3000、より好ましくは500〜2000の範囲から選ばれ
る。The degree of saponification is usually preferably in the range of 70 to 100 mol%. It is more preferably 80 to 98.5 mol%. The degree of polymerization is usually
It is selected from the range of 100 to 3000, more preferably 500 to 2000.
こうして得られたα−オレフイン単位を１〜10モル％含
有する変性ＰＶＡは次にアセタール化され、 の繰り返しからなり、かつｋ，ｌ，ｍ，ｎが なる組成式を満足するα−オレフイン変性ポリビニルア
セタール樹脂とされる。The modified PVA containing 1-10 mol% of α-olefin units thus obtained is then acetalized, And k, l, m, n are The α-olefin modified polyvinyl acetal resin satisfying the following compositional formula.
該ポリビニルアセタールのうちではポリビニルブチラー
ル樹脂が本発明の目的に好適である。アセタール化は、
従来のポリビニルアセタール樹脂の製造方法と同様にし
て実施される。以上はα−オレフイン単位を１〜１０モ
ル％含有する変性ＰＶＡを製造した後これをアセタール
化する方法を中心に述べたが、α−オレフイン変性ＰＶ
Ａの製造途中のけん化工程においてけん化反応とアセタ
ール化を同時に実施しても本発明の変性ポリビニルアセ
タール樹脂を得ることができる。Among the polyvinyl acetals, polyvinyl butyral resin is suitable for the purpose of the present invention. Acetalization is
It is carried out in the same manner as a conventional method for producing a polyvinyl acetal resin. The above description has been centered on a method of producing a modified PVA containing 1 to 10 mol% of α-olefin units and then acetalizing the modified PVA.
The modified polyvinyl acetal resin of the present invention can be obtained by simultaneously performing the saponification reaction and the acetalization in the saponification step during the production of A.
上記の本発明のα−オレフイン変性ポリビニルアセター
ル樹脂において、 で定義されるアセタール化度は、通常0.50〜0.80、好ま
しくは0.55〜0.70の範囲から選ばれる。In the above α-olefin modified polyvinyl acetal resin of the present invention, The degree of acetalization defined by is usually selected from the range of 0.50 to 0.80, preferably 0.55 to 0.70.
このようにして得られた変性ポリビニルアセタール樹脂
を安全合せガラス中間膜として用いるためには、従来の
ポリビニルアセタール樹脂と同様に、可塑剤が樹脂１０
０部に対し20〜80部、好ましくは40〜60部用いられる。
可塑剤としては通常用いられているものがいずれも使用
でき、例えばトリエチレングリコール−ジ−２−エチル
ブチレート、トリエチレングリコール−ジ−２−エチル
ヘキソエートなどが好適に用いられる。またその他の添
加剤として着色剤、シリコン油などの添加剤を適宜加え
ることもできる。本発明における中間膜は樹脂を常法に
よりシート状に成型して作成され、これをガラス板の間
にはさみ加熱加圧されて安全合せガラスとして使用され
る。In order to use the modified polyvinyl acetal resin thus obtained as a safety laminated glass interlayer film, a plasticizer is used as the resin 10 as in the conventional polyvinyl acetal resin.
It is used in an amount of 20 to 80 parts, preferably 40 to 60 parts per 0 part.
As the plasticizer, any of those usually used can be used, and for example, triethylene glycol-di-2-ethylbutyrate, triethylene glycol-di-2-ethylhexoate and the like are preferably used. Further, other additives such as colorants and silicone oil may be appropriately added. The interlayer film in the present invention is formed by molding a resin into a sheet by a conventional method, sandwiched between glass plates, heated and pressed, and used as a safety laminated glass.
Ｅ．作用及び発明の効果 本発明の樹脂はこれを中間膜として用いた時、安全合せ
ガラスの耐貫通性が常温ばかりでなく、低温あるいは高
温時においても優れていると同時に、中間膜とガラス面
との接着性も向上させ、それによつて衝撃物により破損
されたガラス破片の飛散を減少させるという効果をも有
していることが特徴である。かかる性能が発揮される理
由は十分解明されているわけではないが、本発明の変性
ポリビニルアセタール樹脂中のα−オレフインの作用に
よつて中間膜とガラスとの密着性が向上していることに
よるものと推定される。E. Action and Effect of the Invention When the resin of the present invention is used as an intermediate film, the penetration resistance of the safety laminated glass is excellent not only at room temperature but also at low temperature or high temperature, and at the same time, the interlayer film and the glass surface are It is also characterized in that it also has the effect of improving the adhesiveness of the glass, and thereby reducing the scattering of glass fragments broken by impacts. Although the reason why such performance is exhibited is not fully understood, it is because the adhesion between the interlayer film and the glass is improved by the action of α-olefin in the modified polyvinyl acetal resin of the present invention. It is estimated that
以下に実施例を挙げて本発明を更に具体的に説明する。
なお、以下において部及び％とあるのは特にことわりの
ないかぎり重量基準を意味する。Hereinafter, the present invention will be described more specifically with reference to examples.
In the following, parts and% mean weight basis unless otherwise specified.
実施例１ エチレン単位６モル％と酢酸ビニル単位９４モル％とか
らなる共重合体をけん化することにより、エチレン単位
を６モル％含有し、酢酸ビニル単位のけん化度が９９．
０モル％、重合度1000の水溶性のエチレン変性ＰＶＡを
得た。Example 1 A copolymer composed of 6 mol% of ethylene units and 94 mol% of vinyl acetate units was saponified to contain 6 mol% of ethylene units, and the saponification degree of vinyl acetate units was 99.
A water-soluble ethylene-modified PVA with 0 mol% and a polymerization degree of 1000 was obtained.
次にこの変性ＰＶＡ１０部を水９０部に入れ、撹拌下で
加熱溶解した後、４０℃まで冷却した。４０℃で撹拌し
ながら３５％濃度の濃塩酸６．５部を添加し、更にブチ
ルアルデヒド５．２部を加えると変性ポリビニルブチラ
ールの白色沈澱が発生した。４０℃で更に４時間熟成を
行なつた後、反応を終了し、樹脂を中和、水洗し、前記
の定義によるブチラール化度が６０モル％、前記の定義
によるエチレン単位含量が６モル％の変性ポリビニルブ
チラール樹脂を得た。この樹脂１００部にトリエチレン
グリコール−ジ−２−エチルブチレート５０部を加えて
可塑化し、７０℃にて５分間ロール練りを行ない、更に
１４０℃、５０kg/cm2の条件下で厚さ０．７５mmの中間
膜を作成した。このフイルムをガラス板（厚さ３mm、巾
３００mm、長さ３００mm）２枚の間に挾んで１２０℃、
１０kg/cm2の条件で貼り合せ、安全合せガラスを得た。
得られた安全合せガラスについて耐貫通強度およびフイ
ルムとガラスとの接着性を測定した。結果を第１表に示
す。Next, 10 parts of this modified PVA was put into 90 parts of water, dissolved by heating under stirring, and then cooled to 40 ° C. While stirring at 40 ° C., 6.5 parts of concentrated hydrochloric acid having a concentration of 35% was added, and further 5.2 parts of butyraldehyde was added, whereby a white precipitate of the modified polyvinyl butyral was generated. After further aging at 40 ° C. for 4 hours, the reaction was terminated, the resin was neutralized and washed with water, the butyralization degree according to the above definition was 60 mol%, and the ethylene unit content according to the above definition was 6 mol%. A modified polyvinyl butyral resin was obtained. To 100 parts of this resin, 50 parts of triethylene glycol-di-2-ethylbutyrate was added to be plasticized, roll kneading was carried out at 70 ° C. for 5 minutes, and the thickness was 0 at 140 ° C. and 50 kg / cm 2. An interlayer film of 0.75 mm was prepared. This film is sandwiched between two glass plates (thickness 3 mm, width 300 mm, length 300 mm) at 120 ° C,
The laminated glass was obtained by laminating the laminated glass under the condition of 10 kg / cm 2 .
With respect to the obtained safety laminated glass, the penetration resistance and the adhesiveness between the film and the glass were measured. The results are shown in Table 1.
実施例２〜５ 実施例１のエチレン単位含有変性ＰＶＡにかえて次のα
−オレフイン変性ＰＶＡを使用した以外は実施例１と同
様にして変性ポリビニルブチラール樹脂を得て安全合せ
ガラス中間膜としての評価を実施した。結果を第１表に
合せて示す。Examples 2 to 5 The following α was used instead of the modified ethylene unit-containing PVA of Example 1.
-A modified polyvinyl butyral resin was obtained and evaluated as a safety laminated glass interlayer film in the same manner as in Example 1 except that olefin modified PVA was used. The results are also shown in Table 1.
実施例２において使用したα−オレフイン変性ＰＶＡ： エチレン単位を２モル％含有し、酢酸ビニル単位のけん
化度が９５．０モル％、重合度1500の水溶性エチレン変
性ＰＶＡ。Α-Olefin-modified PVA used in Example 2: A water-soluble ethylene-modified PVA containing 2 mol% of ethylene units, having a saponification degree of vinyl acetate units of 95.0 mol% and a polymerization degree of 1500.
実施例３において使用したα−オレフイン変性ＰＶＡ： エチレン単位を９モル％含有し、酢酸ビニル単位のけん
化度が９９．５モル％、重合度３００の水溶性エチレン
変性ＰＶＡ。Α-Olefin-modified PVA used in Example 3: A water-soluble ethylene-modified PVA containing 9 mol% of ethylene units, a saponification degree of vinyl acetate units of 99.5 mol%, and a polymerization degree of 300.
実施例４において使用したα−オレフイン変性ＰＶＡ： イソブテン単位を４モル％含有し、酢酸ビニル単位のけ
ん化度が９９．５モル％、重合度800の水溶性イソブテ
ン変性ＰＶＡ。Α-Olefin-modified PVA used in Example 4: Water-soluble isobutene-modified PVA containing 4 mol% of isobutene units, having a vinyl acetate unit saponification degree of 99.5 mol% and a polymerization degree of 800.
実施例５において使用したα−オレフイン変性ＰＶＡ： プロピレン単位を４モル％含有し、酢酸ビニル単位のけ
ん化度９８．５モル％、重合度５００の水溶性プロピレ
ン変性ＰＶＡ。Α-Olefin-modified PVA used in Example 5: A water-soluble propylene-modified PVA containing 4 mol% of propylene units, having a saponification degree of vinyl acetate units of 98.5 mol% and a polymerization degree of 500.
比較例１〜３ 実施例１のエチレン単位含有変性ＰＶＡに代えて次のＰ
ＶＡを用いる以外は実施例１と同様にしてポリビニルブ
チラールを得、安全合せガラス中間膜としての評価を実
施した。結果を第１表に合せて示す。Comparative Examples 1 to 3 Instead of the ethylene unit-containing modified PVA of Example 1, the following P
Polyvinyl butyral was obtained in the same manner as in Example 1 except that VA was used, and evaluated as a safety laminated glass interlayer film. The results are also shown in Table 1.
比較例１で使用したＰＶＡ： けん化度９９．１モル％、重合度1000ＰＶＡ。PVA used in Comparative Example 1: Saponification degree 99.1 mol%, polymerization degree 1000 PVA.
比較例２で使用したα−オレフイン変性ＰＶＡ： エチレン単位を０．５モル％含有し、酢酸ビニル単位の
けん化度９９．０モル％、重合度８００の水溶性エチレ
ン変性ＰＶＡ。Α-Olefin-modified PVA used in Comparative Example 2: A water-soluble ethylene-modified PVA containing 0.5 mol% of ethylene units, a saponification degree of vinyl acetate units of 99.0 mol%, and a polymerization degree of 800.
比較例３で使用したα−オレフイン変性ＰＶＡ： イソブテン単位を１２モル％含有し、酢酸ビニル単位の
けん化度９９．３モル％、重合度300の水不溶性イソブ
テン変性ＰＶＡ。Α-Olefin-modified PVA used in Comparative Example 3: A water-insoluble isobutene-modified PVA containing 12 mol% of isobutene units, a saponification degree of vinyl acetate units of 99.3 mol%, and a polymerization degree of 300.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 米津 潔 岡山県倉敷市酒津1621番地 株式会社クラ レ内 (72)発明者 山内 淳之介 岡山県倉敷市酒津1621番地 株式会社クラ レ内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyoshi Yonezu, Kuraray Co., Ltd. 1621 Satsuki, Kurashiki, Okayama Prefecture (72) Junnosuke Yamauchi, 1621 Sakata, Kurashiki City, Okayama Pref., Kuraray Co., Ltd.
Claims (4)
セタール樹脂を主剤とすることを特徴とする安全合せガ
ラス用中間膜組成物。1. And k, l, m, n are An interlayer film composition for safety laminated glass, which comprises an α-olefin modified polyvinyl acetal resin satisfying the following composition formula as a main component.
ル樹脂が、酢酸ビニルとα−オレフインとの共重合体を
けん化して得られる水溶性の変性ポリビニルアルコール
を更にアセタール化して得られる樹脂である特許請求の
範囲第１項に記載の安全合せガラス用中間膜組成物。2. The α-olefin modified polyvinyl acetal resin is a resin obtained by further acetalizing a water-soluble modified polyvinyl alcohol obtained by saponifying a copolymer of vinyl acetate and α-olefin. An interlayer film composition for safety laminated glass according to item 1 of the above.
ルブチラールである特許請求の範囲第１項及び第２項に
記載の安全合せガラス用中間膜組成物。3. The interlayer film composition for safety laminated glass according to claim 1 or 2, wherein the modified polyvinyl acetal is modified polyvinyl butyral.
の範囲第１項、第２項及び第３項に記載の安全合せガラ
ス用中間膜組成物。4. The interlayer film composition for safety laminated glass according to claim 1, 2, or 3, wherein α-olefin is ethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22408686A JPH0625005B2 (en) | 1986-09-22 | 1986-09-22 | Intermediate film composition for safety laminated glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22408686A JPH0625005B2 (en) | 1986-09-22 | 1986-09-22 | Intermediate film composition for safety laminated glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6379741A JPS6379741A (en) | 1988-04-09 |
| JPH0625005B2 true JPH0625005B2 (en) | 1994-04-06 |
Family
ID=16808333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22408686A Expired - Fee Related JPH0625005B2 (en) | 1986-09-22 | 1986-09-22 | Intermediate film composition for safety laminated glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0625005B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106715494A (en) * | 2014-06-13 | 2017-05-24 | 爱克发印艺公司 | (ethylene, vinyl acetal) copolymers and their use in lithographic printing plate precursors |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60233513D1 (en) * | 2001-09-21 | 2009-10-08 | Sekisui Chemical Co Ltd | MODIFIED POLYVINYL ACETAL RESIN |
| DE60302726T2 (en) * | 2002-07-23 | 2006-08-03 | KURARAY CO., LTD, Kurashiki | Polyvinyl acetal and its use |
| JP4794121B2 (en) * | 2002-07-23 | 2011-10-19 | 株式会社クラレ | Ink or paint binder |
| US7569166B2 (en) | 2003-06-26 | 2009-08-04 | Sekisui Chemical Co., Ltd. | Binder resin for coating paste |
| CN109207085B (en) * | 2018-06-29 | 2021-05-07 | 洛阳祺诺塑胶有限公司 | Polyvinyl butyral film with high tearing strength and production method thereof |
| WO2020196186A1 (en) | 2019-03-28 | 2020-10-01 | 株式会社クラレ | Modified vinyl acetal resin for laminated glass interlayer film |
| CN114981318A (en) | 2020-01-15 | 2022-08-30 | 株式会社可乐丽 | Resin composition, resin sheet, and laminated glass |
| KR20230169157A (en) | 2021-04-12 | 2023-12-15 | 주식회사 쿠라레 | Acetalized product of ethylene vinyl alcohol copolymer and composition containing the acetalized product |
| EP4241982A1 (en) * | 2022-03-11 | 2023-09-13 | Kuraray Europe GmbH | Process for the production of interlayer films comprising ethylene vinyl acetals |
-
1986
- 1986-09-22 JP JP22408686A patent/JPH0625005B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106715494A (en) * | 2014-06-13 | 2017-05-24 | 爱克发印艺公司 | (ethylene, vinyl acetal) copolymers and their use in lithographic printing plate precursors |
| CN106715494B (en) * | 2014-06-13 | 2019-10-18 | 爱克发有限公司 | (ethylene, vinyl acetal) copolymer and their purposes in Lighographic printing plate precursor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6379741A (en) | 1988-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4371579B2 (en) | Plasticizer-containing sheet made of partially acetalized polyvinyl alcohol | |
| JP3635635B2 (en) | Laminated glass interlayer film and laminated glass | |
| JPH0669706B2 (en) | Roughness control of polyvinyl butyral sheet | |
| JPH05104687A (en) | Sound insulating intermediate film | |
| CN109130391B (en) | Resin film for laminated glass, and process for producing the same | |
| JPH0625005B2 (en) | Intermediate film composition for safety laminated glass | |
| JPH05310449A (en) | Intermediate film for safety glass and safety glass using the same | |
| JPH07133392A (en) | Polyvinyl butyrals plasticized and having improved property of reducing stickiness to silicic glass and their productionand usage | |
| JP3377848B2 (en) | Interlayer for laminated glass and laminated glass using the same | |
| RU2086566C1 (en) | Modified polyvinyl butyral and method for its production | |
| US5466751A (en) | Plasticized polymer moldings made from modified polyvinyl butyrals | |
| JPH11323056A (en) | Interlayer for glass laminate and laminated glass | |
| JP5489960B2 (en) | Laminated glass | |
| US3923757A (en) | Transparent adhesive | |
| JPH07172878A (en) | Intermediate film for laminated glass | |
| JPH06135748A (en) | Intermediate film for laminated glass and laminated glass using the same | |
| JPH06115981A (en) | Interlayer for laminated glass | |
| JP2695063B2 (en) | Laminated glass | |
| JPH10139496A (en) | Safety glass interlayer and safety glass | |
| JPH0472304A (en) | Vinyl acetal-based polymer and production thereof | |
| JPH08109048A (en) | Intermediate film for safety glass and safety glass | |
| US3468749A (en) | Laminated glazing unit and method for producing same | |
| EP3439878B1 (en) | Multilayer film comprising layer of plasticized polyvinyl acetal with reduced flowability | |
| JP4052780B2 (en) | Interlayer film for laminated glass and laminated glass | |
| JPS6146425B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |