JPH02301417A - Manufacture of surface-roughened polyvinyl butyral resin sheet - Google Patents
Manufacture of surface-roughened polyvinyl butyral resin sheetInfo
- Publication number
- JPH02301417A JPH02301417A JP1122399A JP12239989A JPH02301417A JP H02301417 A JPH02301417 A JP H02301417A JP 1122399 A JP1122399 A JP 1122399A JP 12239989 A JP12239989 A JP 12239989A JP H02301417 A JPH02301417 A JP H02301417A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- die
- polyvinyl butyral
- butyral resin
- pitch
- 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
- 229920005989 resin Polymers 0.000 title claims abstract description 35
- 239000011347 resin Substances 0.000 title claims abstract description 35
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000001125 extrusion Methods 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 abstract description 13
- 239000011521 glass Substances 0.000 abstract description 13
- 239000005340 laminated glass Substances 0.000 description 8
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000002313 adhesive film Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- UTOPWMOLSKOLTQ-UHFFFAOYSA-N octacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O UTOPWMOLSKOLTQ-UHFFFAOYSA-N 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- JEYLQCXBYFQJRO-UHFFFAOYSA-N 2-[2-[2-(2-ethylbutanoyloxy)ethoxy]ethoxy]ethyl 2-ethylbutanoate Chemical compound CCC(CC)C(=O)OCCOCCOCCOC(=O)C(CC)CC JEYLQCXBYFQJRO-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 230000021736 acetylation Effects 0.000 description 1
- 238000006640 acetylation reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XTKDAFGWCDAMPY-UHFFFAOYSA-N azaperone Chemical compound C1=CC(F)=CC=C1C(=O)CCCN1CCN(C=2N=CC=CC=2)CC1 XTKDAFGWCDAMPY-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- -1 grooves remain Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、粗面化ポリビニルブチラール樹脂シートの製
造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing a roughened polyvinyl butyral resin sheet.
ポリビニルブチラール（以下、ｒＰＶＢＪと略す）樹脂
は、粘着性を有するため、シートに成形した後、ロール
状に巻き取って保管している間にシート同士が粘着しあ
う、いわゆるブロッキング現象を起こし後続の工程にお
ける取扱が困難となる問題がある。また、合わせガラス
の中間膜として使用する場合、シートが平滑であるとシ
ートとガラス板を張り合わせる際に、両者の界面に空気
が巻き込まれて封じ込められ、合わせガラスに気泡が残
り易いという問題があった。Polyvinyl butyral (hereinafter abbreviated as rPVBJ) resin has adhesive properties, so after being formed into a sheet, it causes the so-called blocking phenomenon in which the sheets stick to each other while being wound up into a roll and stored. There are problems that make handling in the process difficult. In addition, when used as an interlayer film for laminated glass, if the sheet is smooth, air will be trapped at the interface between the sheet and glass plate when they are pasted together, and air bubbles will easily remain in the laminated glass. there were.
従来、これらの問題を解決する方法として、保管時のブ
ロッキング防止のために、
■ ＰＶＢ樹脂シート表面に重炭酸ソーダの粉末を噴霧
・塗布する方法。Conventionally, methods to solve these problems include spraying and applying bicarbonate of soda powder to the surface of the PVB resin sheet to prevent blocking during storage.
■ 押出成形してなるＰＶＢ樹脂シートを非粘着性フィ
ルムと合わせて巻き取る方法。（特開昭４８−８６９１
５号、特公昭４６〜４２１０４号）合わせガラスの製造
における空気の巻き込みを防止するために、
■ ガラスとの張り合わせ時に空気の逃げ道が形成され
るように、エンボスロールを用いてＰＶＢ樹脂シートを
加熱加圧処理することによりシート表面に凹凸を形成す
る方法。 （特開昭６２−５２１４８号）
などが提案されている。■ A method of rolling up an extruded PVB resin sheet together with a non-adhesive film. (Unexamined Japanese Patent Publication No. 48-8691
(No. 5, Special Publication No. 46-42104) In order to prevent air entrainment during the manufacture of laminated glass, ■ Heat the PVB resin sheet using an embossing roll so that an air escape path is formed when laminated with glass. A method of forming irregularities on the sheet surface by applying pressure. (Unexamined Japanese Patent Publication No. 62-52148), etc. have been proposed.
しかし、上記■の方法によって得られるシートは、使用
時に表面に塗布された重炭酸ソーダを水洗等により除去
する必要があり、工程が煩雑となる問題がある。一方、
上記■の方法は、非粘着性フィルムをシートと一緒に巻
き取るための装置、及び使用時には非粘着性フィルムを
剥離するための装置が必要となる、また非粘着性フィル
ムが必要であり、これがコスト上昇の原因となる。上記
■の方法では、使用するエンボスロールの製作上の問題
から、シートの張り合わせ時に空気の逃げ道となる溝を
規則的な方向、幅、間隔、深さで形成することが困難で
あった。However, when using the sheet obtained by the method (2) above, it is necessary to remove the bicarbonate of soda applied to the surface by washing with water or the like, which makes the process complicated. on the other hand,
Method (2) above requires a device for winding up the non-adhesive film together with the sheet, and a device for peeling off the non-adhesive film during use, and also requires a non-adhesive film. This causes an increase in costs. In the method (2) above, due to problems in manufacturing the embossing roll used, it was difficult to form grooves that would serve as escape routes for air when laminating sheets with regular directions, widths, intervals, and depths.
そこで本発明の目的は、重ね合わせて保管してもブロッ
キングが起こらず、ガラス板等と張り合わせる場合に空
気の巻き込みがなく、特に、合わせガラスの製造に好適
なＰＶＢ樹脂シートを得ることができる方法を提供する
ことにある。Therefore, an object of the present invention is to obtain a PVB resin sheet that does not cause blocking even when stored in layers, does not entrain air when laminated with glass plates, etc., and is particularly suitable for manufacturing laminated glass. The purpose is to provide a method.
〔課題を解決するための手段］
本発明は、上記課題を解決する方法として、ポリビニル
ブチラール樹脂を押出成形機によりシートに成形する方
法であって、ダイ先端リップ部の上下内面の少なくとも
一方に溶融ポリビニルブチラール樹脂の押出方向に対し
て直角方向に１０〜７００μ糟のピッチで配置された、
高さ５〜１００μ閘の複数の凸部を有するダイを用いる
ことを特徴とする粗面化ポリビニルブチラール樹脂シー
トの製造方法を提供するものである。[Means for Solving the Problems] As a method for solving the above problems, the present invention provides a method of molding polyvinyl butyral resin into a sheet using an extrusion molding machine, the method comprising: Arranged at a pitch of 10 to 700 μm in the direction perpendicular to the extrusion direction of the polyvinyl butyral resin,
The present invention provides a method for producing a roughened polyvinyl butyral resin sheet, which is characterized by using a die having a plurality of convex portions having a height of 5 to 100 μm.
本発明の方法は、押出されるシートの表及び裏を成形す
るダイ先端リップ部の上下内面の少なくとも一方に所定
の凸部を有するダイを装着した押出成形機にＰＶＢ樹脂
を供給し、溶融して押出成形することにより、粗面化Ｐ
ＶＢ樹脂シートを製造する方法である。In the method of the present invention, PVB resin is supplied to an extrusion molding machine equipped with a die that has a predetermined convex portion on at least one of the upper and lower inner surfaces of the die tip lip portion that forms the front and back sides of the sheet to be extruded, and the PVB resin is melted. By extrusion molding, the surface is roughened.
This is a method for manufacturing a VB resin sheet.
本発明の方法で用いられる押出成形機は、ダイ先端リッ
プ部の上下内面の少なくとも一方に、高さ５〜１００
μｍ、好ましくは１０〜５０μ信の複数の凸部を押出方
向に対して直角方向に１０〜７００μ鴎、好ましくは３
０〜５００ μｍのピッチで配置してなるダイを有する
ものである。リップ部に配置される凸部の高さが５μｍ
未満では、得られるシートの表面に形成される溝が浅く
、なだらかなものとなってしまい、シートを重ね合わせ
て保管した場合にブロッキングが起こり易（なり、また
ガラスと張り合わせた場合には脱気性が低下する。また
凸部の高さがｔｏｏ ｕ ｔａを超えると、得られるシ
ートを重ね合わせてもブロッキングは起こり難くなるが
、シートの表面に形成される溝が深くなりすぎるため、
ガラスと張り合わせても溝が残ってしまい、気泡がガラ
スとシートの界面に残ってしまう。The extrusion molding machine used in the method of the present invention has a height of 5 to 100 mm on at least one of the upper and lower inner surfaces of the die tip lip.
A plurality of convex portions with a diameter of 10 to 50 μm, preferably 10 to 700 μm, preferably 3 μm, are formed in a direction perpendicular to the extrusion direction.
It has dies arranged at a pitch of 0 to 500 μm. The height of the convex part placed on the lip part is 5 μm
If the thickness is less than 100 mm, the grooves formed on the surface of the resulting sheet will be shallow and smooth, and blocking will easily occur when the sheets are stacked and stored. In addition, if the height of the convex portion exceeds too much, blocking will hardly occur even if the resulting sheets are stacked, but the grooves formed on the surface of the sheets will become too deep.
Even when bonded to glass, grooves remain, and air bubbles remain at the interface between the glass and the sheet.
凸部のピッチが１０μｍ未満のリップ部を有するダイは
製作が困難であり、またピッチが１０μｍ未満であると
得られるシートを重ね合わせた場合にブロッキングが起
こり易くなり、張り合わせ時の脱気性も悪くなる。また
、凸部を配置するピッチが７００ μｍを超えると得ら
れるシートの表面において平坦部の面積が大きくなるた
めブロンキングが起こり易くなる。この凸部の形態とし
ては、例えば、前記高さの角錐状、角錐台状、半球状、
円錐状、円柱状等の突起、断面が三角形状、台形状又は
半円状で押出方向に延びた前記高さのレール状の形状の
突起が挙げられる。また、隣合った凸部は同一の形状で
あってもよいし、異なった形状のものでもよい。It is difficult to manufacture a die having a lip portion with a pitch of convex portions of less than 10 μm, and when the pitch is less than 10 μm, blocking tends to occur when the resulting sheets are stacked together, and degassing performance during lamination is poor. Become. Furthermore, if the pitch at which the convex portions are arranged exceeds 700 μm, the area of the flat portions on the surface of the resulting sheet increases, making bronking more likely to occur. The shape of the convex portion may be, for example, pyramid-shaped, truncated pyramid-shaped, hemispherical, or
Examples include protrusions having a conical or cylindrical shape, and rail-shaped protrusions having a triangular, trapezoidal, or semicircular cross section and extending in the extrusion direction and having the above-mentioned height. Further, adjacent convex portions may have the same shape or may have different shapes.
以上のような凸部を設けたリップ部を先端に有するダイ
から溶融ＰＶＢ樹脂を押出成形することにより、通常、
ＴＤ力方向押出方向と垂直な方向）に深さ５〜１００μ
ｍ、幅５〜２００μｍ程度の微細な溝を１０〜７００Ｉ
ｊＩＩｌのピッチで表及び裏の少なくとも一方の面に有
するＰＶＢ樹脂シートが得られる。By extruding molten PVB resin from a die having a lip portion with a convex portion as described above at the tip,
TD force direction (direction perpendicular to extrusion direction) to a depth of 5 to 100μ
m, fine grooves with a width of about 5 to 200 μm at 10 to 700 I
A PVB resin sheet having a pitch of jIIl on at least one of the front and back surfaces is obtained.
本発明の方法によって合わせガラスの中間膜として用い
られるＰＶＢ樹脂シートを製造する場合には、通常、先
端リップ部の上下内面の両方に凸部を有するダイを用い
て、表及び裏の両面に溝を有するシートが成形される。When manufacturing a PVB resin sheet used as an interlayer film for laminated glass by the method of the present invention, a die having convex portions on both the upper and lower inner surfaces of the tip lip is usually used, and grooves are formed on both the front and back surfaces. A sheet having the following properties is formed.
本発明の方法において、ダイ先端のリップ部の温度をＰ
ＶＢ樹脂のダイ入口における温度より４０℃以上低い温
度、好ましくは１４０〜１８０℃に調節して押出成形す
ると、シートのＴＤ力方向押出方向に対して直角方向）
に延びた高低差４〜２０μｍの凹凸が形成されたＰＶＢ
樹脂シートが得られるため、ガラス板との張り合わせ時
の空気の巻き込みを防止する上で有効である。リップ部
の温度の調節は、例えば、押出シートの表面状態を観察
しながら、加熱用ヒーターの電圧を調節する等の方法に
よって行うことができる。また、ダイ温度をダイ壁面近
傍での溶融ポリビニルブチラール樹脂の粘度が１ｏｏｏ
ｏｏ〜１００００００ポイズになる温度に調節すると、
押出シートの表面に艶消し状梨地が生じ、数μｌ−数１
０μ−の凹凸を有する粗面が形成され、シートを重ね合
わせた場合にブロッキングが起こり難く、ガラスとの張
り合わせ時の脱気性が良好となる点で有効である。In the method of the present invention, the temperature of the lip at the tip of the die is set to P
When extrusion molding is performed at a temperature 40°C or more lower than the temperature at the die inlet of the VB resin, preferably 140 to 180°C, the TD force direction of the sheet (perpendicular to the extrusion direction)
PVB with unevenness extending from 4 to 20 μm in height
Since a resin sheet is obtained, it is effective in preventing air from being drawn in when bonding to a glass plate. The temperature of the lip portion can be adjusted by, for example, adjusting the voltage of a heating heater while observing the surface condition of the extruded sheet. In addition, the viscosity of the molten polyvinyl butyral resin near the die wall surface is 1ooo.
If you adjust the temperature to oo ~ 1,000,000 poise,
A matte satin finish appears on the surface of the extruded sheet, and the amount of
This is effective in that a rough surface with 0 micron concavities and convexities is formed, which prevents blocking when the sheets are stacked on top of each other, and improves degassing properties when laminated with glass.
本発明の方法において、押出成形の加圧力は、通常、好
ましくは１００〜３００ ｋｇ／ｃ艷、特に好ましくは
１００〜２００ ｋｇ／ｃｎｌである。In the method of the present invention, the extrusion pressure is usually preferably 100 to 300 kg/cnl, particularly preferably 100 to 200 kg/cnl.
本発明の方法で使用される押出成形機の形式は、特に限
定されず、単軸又は二輪以上の多軸押出機等のいずれの
形式のものも用いることができる。The type of extrusion molding machine used in the method of the present invention is not particularly limited, and any type of extruder such as a single-screw extruder or a multi-screw extruder with two or more wheels can be used.
本発明の方法において押出成形されるＰＶＢ樹脂は、特
に限定されず、例えば、ブチラール化度５０〜８０モル
％、ビニルアルコール度４９〜１９モル％、残りがアセ
チル基等の組成を有する張り合わせ接着性シートに用い
られるものが挙げられる。また、このＰＶＢ樹脂に通常
添加される添加剤、例えば、トリエチレングリコールジ
ー２−エチルブチレート、ＤＢＰ等の耐寒性、耐候性、
耐湿性を有する可塑剤；接着性を制御するために用いら
れる滑剤；離型性材料などの適量を添加することも任意
である。The PVB resin to be extruded in the method of the present invention is not particularly limited, and has, for example, a butyralization degree of 50 to 80 mol%, a vinyl alcohol content of 49 to 19 mol%, and the remainder is an acetyl group. Examples include those used for sheets. In addition, additives that are usually added to this PVB resin, such as triethylene glycol di-2-ethyl butyrate and DBP, can improve cold resistance, weather resistance,
It is also optional to add appropriate amounts of a moisture-resistant plasticizer; a lubricant used to control adhesion; and a release material.
以下、実施例及び比較例を挙げて本発明の詳細な説明す
る。Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples.
実施例１〜４、比較例１〜２
ＰＶＢ （７’チラ一ル化度６５モル％、ビニルアルコ
ール度３５モル％、アセチル化度１モル％） １００重
量部、トリエチレングリコールジー２−エチルブチレー
ト４０重量部、ステアリン酸ナトリウム０．１重量部及
びモンタン酸のエステルからなるワックス０．５重量部
からなる組成物を調製した。Examples 1 to 4, Comparative Examples 1 to 2 PVB (degree of 7' tylation: 65 mol%, degree of vinyl alcohol: 35 mol%, degree of acetylation: 1 mol%) 100 parts by weight, triethylene glycol-di-2-ethylbutylene A composition was prepared consisting of 40 parts by weight of chloride, 0.1 parts by weight of sodium stearate, and 0.5 parts by weight of a wax consisting of an ester of montanic acid.
次に、第１図に一部を切り欠いて示す図、第２図にその
Ａ−Ａ線断面図を示すように、先端リップ部１の内面２
に、表１に示す高さ及びピッチを有し、断面が台形状の
レール状凸部３を設けてなるＴ−ダイ（幅２５０閣、リ
ップ間隙０．５ ｍ） ４が装着され、Ｔ−ダイ４のダ
イ入口５の温度及びリップ部１の温度を表１に示すよう
に調節された押出成形機（口径５０ｎｎφ、スクリュー
有効長Ｌ／Ｄ：２２、スクリューの圧縮比ＣＲ：２．５
、スクリュー回転数： ４０ｒ、ｐ、ｍ、）を用いて、
上記に得られた組成物を押出成形し、ＰＶＢ樹脂シート
を得た。Next, as shown in FIG. 1 with a partially cut away view and FIG. 2 as a cross-sectional view taken along line A-A,
A T-die (width 250 mm, lip gap 0.5 m) 4 having the height and pitch shown in Table 1 and having a rail-shaped convex portion 3 with a trapezoidal cross section is attached to the T-die. An extrusion molding machine (bore diameter 50 nnφ, screw effective length L/D: 22, screw compression ratio CR: 2.5
, screw rotation speed: 40 r, p, m,),
The composition obtained above was extrusion molded to obtain a PVB resin sheet.
また、比較例１では、リップ部の内面が平滑であるＴ−
ダイを用い、比較例２ではリップ部に凸部を有するＴ−
ダイを用いて組成物を押出成形してＰＶＢ樹脂シートを
得た。In addition, in Comparative Example 1, the inner surface of the lip portion was smooth.
In Comparative Example 2, a T-
The composition was extruded using a die to obtain a PVB resin sheet.
得られたＰＶＢ樹脂シートについて、下記の方法にした
がって、ブロッキング性を測定し、また合わせガラスの
製造における気泡残留性を評価した。結果を表１に示す
。The blocking properties of the obtained PVB resin sheets were measured according to the method described below, and the bubble retention in the production of laminated glass was evaluated. The results are shown in Table 1.
プ旦ヱ土ｌ久住
３０Ｘ１００ ｍｍのＰＶＢ樹脂シート２枚を重ね合わ
せ、２ｋｇの荷重で２０℃で２４時間加圧した後、２０
０ｗｎ ／ ｍ ｔ ｎ、の剥離速度で１８０°剥離試
験を行い、剥離力を測定した。Two PVB resin sheets of 30 x 100 mm were stacked together and pressed at 20°C for 24 hours with a load of 2 kg, and then
A 180° peel test was conducted at a peel rate of 0 wn/m t n, and the peel force was measured.
ム せガースのパ
縦１０ｃｍＸ横１０ｃｍＸ厚さ３ｆｆＩ［Ｉｌのガラス
板２枚の間にＰＶＢ樹脂シートを挟み、１３０℃におい
て１０ｋｇ／ｄの圧力で５分間加熱加圧した後、冷却し
た。A PVB resin sheet was sandwiched between two glass plates measuring 10 cm long, 10 cm wide, and 3 ffI thick, heated and pressed at 130° C. for 5 minutes at a pressure of 10 kg/d, and then cooled.
次に、１２０ ”Ｃのギヤオーブン中で２時間加熱した
後、ガラス板とＰＶＢ樹脂シートとの間隙における気泡
の発生状態を観察し、下記の基準で評価した。Next, after heating in a gear oven at 120''C for 2 hours, the state of bubble generation in the gap between the glass plate and the PVB resin sheet was observed and evaluated based on the following criteria.
Ａ−・−−−一−−−−−−−−−−−−−−気泡がな
い。A-----1----------No air bubbles.
Ｂ−−−−−−−−−−−−−一気泡が１〜４個発生し
た。B--------- 1 to 4 bubbles were generated.
ｃ−一−−−−−−−−−−−−・−・−気泡が５個以
上発生した。c-1--------------------- 5 or more bubbles were generated.
本発明の方法によって得られる粗面化ＰＶＢ樹脂シート
は、保管時にブロッキングを生ぜず、ガラス板等と張り
合わせた場合に空気の巻き込みがなく、特に合わせガラ
スの製造において、気泡のない合わせガラスを製造する
のに好適である。The roughened PVB resin sheet obtained by the method of the present invention does not cause blocking during storage, does not entrain air when laminated with glass plates, etc., and can produce bubble-free laminated glass, especially in the production of laminated glass. It is suitable for
第１図は実施例で使用したＴ−ダイの一部を切り欠いて
示した図、第２図はそのＡ−Ａ線断面図である。
１−・−−−−−−一先端リンプ部、３−−ｍ−−・−
・・−レール状突起、４−・−−−−−Ｔ−ダイ、
５−・−−−−−一・・−ダイ入口。FIG. 1 is a partially cutaway view of the T-die used in the example, and FIG. 2 is a cross-sectional view taken along line A--A. 1--------One tip limp part, 3--m----
...-Rail-shaped protrusion, 4-----T-die,
5-------1...-Die entrance.
Claims (2)
ートに成形する方法であって、ダイ先端リップ部の上下
内面の少なくとも一方に溶融ポリビニルブチラール樹脂
の押出方向に対して直角方向に１０〜７００μｍのピッ
チで配置された、高さ５〜１００μｍの複数の凸部を有
するダイを用いることを特徴とする粗面化ポリビニルブ
チラール樹脂シートの製造方法。(1) A method of forming polyvinyl butyral resin into a sheet using an extrusion molding machine, in which at least one of the upper and lower inner surfaces of the die tip lip is formed at a pitch of 10 to 700 μm in a direction perpendicular to the extrusion direction of the molten polyvinyl butyral resin. A method for producing a roughened polyvinyl butyral resin sheet, characterized by using a die having a plurality of arranged convex portions having a height of 5 to 100 μm.
トの製造方法であって、ダイ先端のリップ部の温度を、
ポリビニルブチラール樹脂のダイ入口における温度より
４０℃以上低い温度に調節する方法。(2) The method for producing a roughened polyvinyl butyral resin sheet according to claim 1, wherein the temperature of the lip at the tip of the die is
A method of adjusting the temperature to 40°C or more lower than the temperature of polyvinyl butyral resin at the die inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1122399A JPH02301417A (en) | 1989-05-16 | 1989-05-16 | Manufacture of surface-roughened polyvinyl butyral resin sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1122399A JPH02301417A (en) | 1989-05-16 | 1989-05-16 | Manufacture of surface-roughened polyvinyl butyral resin sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02301417A true JPH02301417A (en) | 1990-12-13 |
Family
ID=14834830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1122399A Pending JPH02301417A (en) | 1989-05-16 | 1989-05-16 | Manufacture of surface-roughened polyvinyl butyral resin sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02301417A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003512283A (en) * | 1999-10-25 | 2003-04-02 | ハーテー トロプラスト アクチェンゲゼルシャフト | Method and film for producing laminated glass |
| JP2003528749A (en) * | 2000-03-29 | 2003-09-30 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Glass / polyvinyl butyral laminate having directional texture and method for preparing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2489951A (en) * | 1946-06-22 | 1949-11-29 | Monsanto Chemicals | Extrusion apparatus |
| JPS5192866A (en) * | 1975-01-02 | 1976-08-14 |
-
1989
- 1989-05-16 JP JP1122399A patent/JPH02301417A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2489951A (en) * | 1946-06-22 | 1949-11-29 | Monsanto Chemicals | Extrusion apparatus |
| JPS5192866A (en) * | 1975-01-02 | 1976-08-14 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003512283A (en) * | 1999-10-25 | 2003-04-02 | ハーテー トロプラスト アクチェンゲゼルシャフト | Method and film for producing laminated glass |
| JP2003528749A (en) * | 2000-03-29 | 2003-09-30 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Glass / polyvinyl butyral laminate having directional texture and method for preparing the same |
| JP4879438B2 (en) * | 2000-03-29 | 2012-02-22 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Glass / polyvinyl butyral laminate having directional surface pattern and method for preparing the same |
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