JP3088555B2 - Windshield - Google Patents
WindshieldInfo
- Publication number
- JP3088555B2 JP3088555B2 JP04128827A JP12882792A JP3088555B2 JP 3088555 B2 JP3088555 B2 JP 3088555B2 JP 04128827 A JP04128827 A JP 04128827A JP 12882792 A JP12882792 A JP 12882792A JP 3088555 B2 JP3088555 B2 JP 3088555B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- polycarbonate resin
- resin plate
- windshield
- impact strength
- 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
Landscapes
- Laminated Bodies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明はポリカーボネート樹脂板
に関する。更に詳しくは、優れた透明性と衝撃強度を有
し、且つ耐久性に優れた防曇性と耐候性を備えたポリカ
ーボネート樹脂製の風防板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polycarbonate resin plate. More specifically, the present invention relates to a polycarbonate resin windshield having excellent transparency and impact strength, and excellent durability and antifogging property and weather resistance.
【０００２】[0002]
【従来の技術】ポリカーボネート樹脂板は、優れた透明
性と衝撃強度を有するがゆえに広範な用途に用いられて
いるが、防曇性や耐候性に劣る欠点があり、ヘルメット
シールド、オートバイの風防板、航空機や車の窓材等の
用途では優れた透明性と衝撃強度と共に、優れた防曇性
や耐候性が要求される為、その使用が制限されていた。2. Description of the Related Art Polycarbonate resin plates have been used in a wide range of applications because of their excellent transparency and impact strength, but have drawbacks of poor antifogging properties and weather resistance. For applications such as window materials for aircraft and vehicles, excellent transparency and impact strength, as well as excellent anti-fog properties and weather resistance, have been demanded, and their use has been limited.
【０００３】ポリカーボネート樹脂板の防曇性や耐候性
を改善するためには、ポリカーボネート樹脂板の一方の
面に防曇性能を有する塗料を、他方の面に耐候性能を有
する塗料を塗装することが行われている。しかしながら
ポリカーボネート樹脂板の一方の面に防曇性能を有する
塗料を塗装し、他方の面に耐候性能を有する塗料を塗装
することは、異質の塗料を各々の面に塗装するため、塗
装工程は非常に繁雑になり、しかも、外観の良いものは
得にくい。また二つの塗料の塗装条件、乾燥条件、焼き
付け条件が異なり、各々の塗膜性能が十分に発揮されな
い問題点も生じる。In order to improve the anti-fogging property and weather resistance of a polycarbonate resin plate, it is necessary to apply a coating having anti-fog performance to one surface of the polycarbonate resin plate and a coating having weather resistance to the other surface. Is being done. However, painting a paint having anti-fog performance on one surface of a polycarbonate resin plate and painting a weather-resistant paint on the other surface involves applying a different kind of paint to each surface. In addition, it is difficult to obtain a good appearance. In addition, the coating conditions, drying conditions, and baking conditions of the two paints are different, and there is also a problem that the performance of each coating film is not sufficiently exhibited.
【０００４】また、防曇剤や耐候剤をポリカーボネート
樹脂板中に練り込む方法が有るが、防曇剤や耐候剤を多
量に添加する必要が有り、この為透明性を低下させた
り、添加物のブリードにより外観、性能を損なう問題点
が有る。There is also a method of kneading an anti-fogging agent and a weathering agent into a polycarbonate resin plate. However, it is necessary to add a large amount of an anti-fogging agent and a weathering agent. There is a problem that appearance and performance are impaired by the bleeding.
【０００５】また、樹脂板の一方の面に防曇性能を有す
るフィルムを、他方の面に耐候性能を有するフィルムを
接着剤を用いて接着する方法もあるが、この方法をポリ
カーボネート樹脂板に適用すると、接着剤の影響でポリ
カーボネート樹脂板が白化したり、衝撃強度が低下した
りする問題がある。また長期の密着性を保持する接着剤
は極めて少ない。There is also a method of bonding a film having anti-fog performance to one surface of a resin plate and a film having weather resistance to the other surface using an adhesive, but this method is applied to a polycarbonate resin plate. Then, there is a problem that the polycarbonate resin plate is whitened or the impact strength is reduced due to the influence of the adhesive. Very few adhesives maintain long-term adhesion.
【０００６】[0006]
【発明が解決しようとする課題】本発明の目的は、ヘル
メットシールド、オートバイの風防板、航空機や車の窓
材等に好適な優れた透明性と衝撃強度を有し、且つ耐久
性に優れた防曇性と耐候性を備えたポリカーボネート樹
脂板を容易に且つ経済的に提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide excellent transparency and impact strength suitable for helmet shields, windshields of motorcycles, window materials of aircrafts and cars, and excellent durability. An object of the present invention is to easily and economically provide a polycarbonate resin plate having anti-fogging property and weather resistance.
【０００７】本発明者は、上記目的を達成せんとして鋭
意検討を重ねた結果、防曇性を有する熱可塑性樹脂フィ
ルムと耐候性を有する熱可塑性樹脂フィルムをポリカー
ボネート樹脂板の夫々の面に熱圧着すれば、ポリカーボ
ネート樹脂板の優れた透明性と衝撃強度を低下させるこ
となく、且つ耐久性の優れた防曇性と耐候性を有するポ
リカーボネート樹脂板が得られることを究明し、本発明
を完成した。The present inventors have conducted intensive studies to achieve the above object, and as a result, a thermoplastic resin film having anti-fog properties and a thermoplastic resin film having weather resistance are thermocompression-bonded to respective surfaces of a polycarbonate resin plate. By doing so, it was determined that a polycarbonate resin plate having excellent anti-fogging property and weather resistance having excellent durability and without reducing the excellent transparency and impact strength of the polycarbonate resin plate could be obtained, and completed the present invention. .
【０００８】[0008]
【課題を解決するための手段】本発明は、ポリカーボネ
ート樹脂板の一方の面に防曇性を有するジアセチルセル
ローズ製のフィルムを、他方の面に耐候性を有する熱可
塑性樹脂フィルムを熱圧着してなる曇り度３％以下で衝
撃強度６０ｋｇｆ・ｃｍ／ｃｍ以上の性能を有する風防
板に係るものである。SUMMARY OF THE INVENTION The present invention provides a diacetyl cell having an antifogging property on one surface of a polycarbonate resin plate.
The present invention relates to a windshield having a performance of a haze of 3% or less and an impact strength of 60 kgf · cm / cm or more, which is obtained by thermocompression bonding a film made of rose to a thermoplastic resin film having weather resistance on the other surface.
【０００９】本発明でいう風防板とは、ヘルメットシー
ルド、オートバイの風防板、航空機や車の窓材等に使用
される板をいう。The windshield referred to in the present invention means a plate used for a helmet shield, a windshield of a motorcycle, a window material of an aircraft or a car, and the like.
【００１０】図１は本発明のポリカーボネート樹脂製の
風防板の斜視図であり、図中１はポリカーボネート樹脂
基板、２は防曇フィルム、３は耐候フィルムである。FIG. 1 is a perspective view of a polycarbonate resin windshield of the present invention, wherein 1 is a polycarbonate resin substrate, 2 is an anti-fog film, and 3 is a weather resistant film.
【００１１】本発明で使用するポリカーボネート樹脂
は、二価フェノールとカーボネート前駆体とを溶液法又
は溶融法で反応させて得られる。二価フェノールとして
は２，２−ビス（４−ヒドロキシフェニル）プロパン
［通称ビスフェノールＡ］を対象とするが、その一部又
は全部を他の二価フェノールで置換えてもよい。他の二
価フェノールとしては、例えば１，１−ビス（４−ヒド
ロキシフェニル）エタン、１，１−ビス（４−ヒドロキ
シフェニル）シクロヘキサン、２，２−ビス（４−ヒド
ロキシ−３，５−ジメチルフェニル）プロパン、２，２
−ビス（４−ヒドロキシ−３−メチルフェニル）プロパ
ン、ビス（４−ヒドロキシフェニル）サルファイド、ビ
ス（４−ヒドロキシフェニル）スルホン等があげられ
る。カーボネート前駆体としては例えばホスゲン、ジフ
ェニルカーボネート、上記二価フェノール類のビスクロ
ロホーメート、ジ−ｐ−トリルカーボネート、フェニル
−ｐ−トリルカーボネート、ジ−ｐ−クロロフェニルカ
ーボネート、ジナフチルカーボネート等があげられ、な
かでもホスゲン及びジフェニルカーボネートが特に好ま
しい。ポリカーボネート樹脂の重合度は粘度平均分子量
で表して、通常１５，０００〜４０，０００、好ましく
は１８，０００〜３０，０００であり、ポリカーボネー
ト樹脂板の厚さは任意に選択できるが、通常１〜１０mm
程度である。The polycarbonate resin used in the present invention is obtained by reacting a dihydric phenol with a carbonate precursor by a solution method or a melting method. As the dihydric phenol, 2,2-bis (4-hydroxyphenyl) propane [commonly known as bisphenol A] is intended, but a part or all of the dihydric phenol may be replaced with another dihydric phenol. Other dihydric phenols include, for example, 1,1-bis (4-hydroxyphenyl) ethane, 1,1-bis (4-hydroxyphenyl) cyclohexane, 2,2-bis (4-hydroxy-3,5-dimethyl) Phenyl) propane, 2,2
-Bis (4-hydroxy-3-methylphenyl) propane, bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl) sulfone and the like. Examples of the carbonate precursor include phosgene, diphenyl carbonate, bischloroformate of the above-mentioned dihydric phenols, di-p-tolyl carbonate, phenyl-p-tolyl carbonate, di-p-chlorophenyl carbonate, and dinaphthyl carbonate. Of these, phosgene and diphenyl carbonate are particularly preferred. The degree of polymerization of the polycarbonate resin is represented by a viscosity average molecular weight, usually 15,000 to 40,000, preferably 18,000 to 30,000, and the thickness of the polycarbonate resin plate can be arbitrarily selected. 10mm
It is about.
【００１２】かかるポリカーボネート樹脂を製造するに
際し、適当な分子量調節剤、加工性改善のための分岐
剤、反応を促進するための触媒、着色剤、必要に応じて
例えば亜燐酸エステル、燐酸エステル、ホスホン酸エス
テル等の安定剤を０．００１〜０．１重量％、テトラブ
ロムビスフェノールＡ、テトラブロムビスフェノールＡ
の低分子量ポリカーボネート、デカブロモジフェニルエ
ーテル等の難燃剤を１〜２０モル％を添加することがで
きる。In producing such a polycarbonate resin, a suitable molecular weight regulator, a branching agent for improving processability, a catalyst for accelerating the reaction, a coloring agent, and if necessary, for example, a phosphite, a phosphate, a phosphonate, 0.001 to 0.1% by weight of a stabilizer such as an acid ester, tetrabromobisphenol A, tetrabromobisphenol A
1-20 mol% of a flame retardant such as low molecular weight polycarbonate and decabromodiphenyl ether can be added.
【００１３】本発明で使用する防曇フィルムは、防曇性
を有するジアセチルセルローズ製のフィルムであり、か
かるフィルムとアクリル樹脂フィルムとの積層フィルム
も好適に使用できる。かかる防曇フィルムの厚さは通常
１０〜１００μ程度である。The antifogging film used in the present invention is a film made of diacetyl cellulose having antifogging properties .
Laminated film of Karuru film and acrylic resin film
Can also be suitably used. The thickness of such an anti-fog film is usually about 10 to 100 μm.
【００１４】また耐候フィルムは耐候剤を配合した熱可
塑性樹脂製のフィルムであり、例えば紫外線吸収剤を
０．１〜１０重量％含有するアクリル樹脂フィルム、ア
クリル樹脂フィルムラミネートフッ素樹脂フィルムなど
があげられる。かかる耐候フィルムの厚さは通常１０〜
１００μ程度である。The weather-resistant film is a film made of a thermoplastic resin containing a weather-resistant agent. Examples thereof include an acrylic resin film containing 0.1 to 10% by weight of an ultraviolet absorber and an acrylic resin film-laminated fluororesin film. . The thickness of such a weatherproof film is usually 10 to 10.
It is about 100 μ.
【００１５】ポリカーボネート樹脂板の各々の面に防曇
フィルム及び耐候フィルムを積層する方法は、熱圧着で
きる方法であれば任意に採用される。例えばラミネート
機、プレス機等で熱圧着する方法、押出し直後の溶融状
態にあるポリカーボネート樹脂板に熱圧着する方法等が
あげられる。特に、押出し直後に熱圧着する方法が好ま
しい。熱圧着条件は、ポリカーボネート樹脂板、防曇フ
ィルム及び耐候フィルムの物性により異なり、一概に特
定できないが、通常上記フィルムの二次転移温度近辺又
はそれ以上の温度で０．０３kg／cm2 以上、好ましくは
０．０５〜５kg／cm2 程度の圧力を加えることにより熱
圧着できる。The method of laminating the antifogging film and the weather-resistant film on each surface of the polycarbonate resin plate is arbitrarily adopted as long as it can be thermocompression-bonded. For example, a method of thermocompression bonding with a laminating machine, a press machine, or the like, a method of thermocompression bonding to a polycarbonate resin plate in a molten state immediately after extrusion, and the like can be given. In particular, a method of thermocompression bonding immediately after extrusion is preferable. The thermocompression bonding conditions vary depending on the physical properties of the polycarbonate resin plate, the anti-fog film and the weather-resistant film, and cannot be specified unconditionally, but are usually 0.03 kg / cm 2 or more at a temperature near or higher than the secondary transition temperature of the film. Can be thermocompression bonded by applying a pressure of about 0.05 to 5 kg / cm 2 .
【００１６】[0016]
【実施例】以下に実施例をあげて本発明を更に説明す
る。なお、特性値の評価方法は下記の通りである。The present invention will be further described with reference to the following examples. The evaluation method of the characteristic values is as follows.
【００１７】衝撃強度：アイゾット衝撃強度 ASTM D-７
９０（ノッチ付）による。厚さは３mmの試験片を用いた
(kgf・cm/cm)。Impact strength: Izod impact strength ASTM D-7
90 (with notch). A test piece with a thickness of 3 mm was used.
(kgf · cm / cm).
【００１８】曇り度：日本精密工学（株）製積分球式光
線透過率測定装置 H.T.Rメーター（Ｃ光源）により JIS
K−６７３５に準拠して測定した（ヘイズ％）。Haze: JIS based on an integrating sphere type light transmittance measurement device HTR meter (C light source) manufactured by Nippon Precision Engineering Co., Ltd.
It was measured in accordance with K-6735 (haze%).
【００１９】密着性： JIS K−５４００に準拠して碁盤
目試験で測定し、全て剥離した場合を０／１００、全く
剥離しない場合を１００／１００で示した。Adhesion: Measured by a grid test in accordance with JIS K-5400, where 0/100 indicates that all of the layers were peeled, and 100/100 indicates that they were not completely separated.
【００２０】[0020]
【実施例１及び参考例】ビスフェノールＡとホスゲンか
ら得られた粘度平均分子量２４，３００のポリカーボネ
ート樹脂をスクリュー径９０mmのＴダイ付き押出機によ
り厚さ３mm、幅１０００mmの板に溶融押出し、その表面
温度が１４０℃を保持している間に直径３００mmの２対
のロールで挟持して０．５kg／cm2 に加圧し、板の片面
に厚さ５０μ、幅１０００mmのアクリル系ポリマーをラ
ミネートしたジアセチルセルローズ製の防曇フィルム
を、反対面に厚さ５０μ、幅１０００mmのアクリル系コ
ポリマー製の耐候フィルムを夫々挿入し、熱圧着した。
防曇フィルムを熱圧着する際は、アクリル系ポリマーラ
ミネート面をポリカーボネート基板面に密着させた。Example 1 and Reference Example A polycarbonate resin having a viscosity average molecular weight of 24,300 obtained from bisphenol A and phosgene was melt-extruded into a plate having a thickness of 3 mm and a width of 1000 mm by an extruder equipped with a T-die having a screw diameter of 90 mm, and its surface was extruded. While maintaining the temperature at 140 ° C., diacetyl was sandwiched between two pairs of rolls having a diameter of 300 mm and pressed to 0.5 kg / cm 2 , and an acrylic polymer having a thickness of 50 μm and a width of 1000 mm was laminated on one side of the plate. An anti-fog film made of cellulose was inserted into the opposite surface, and a weatherable film made of an acrylic copolymer having a thickness of 50 μm and a width of 1000 mm was inserted into each of the opposite surfaces, and then thermocompression-bonded.
When thermocompression bonding of the antifogging film was performed, the acrylic polymer laminate surface was brought into close contact with the polycarbonate substrate surface.
【００２１】得られた積層板は透明でラミジワ等外観の
異常は全く認められなかった。その衝撃強度、曇り度及
び密着性を表１に示した。The obtained laminate was transparent, and no abnormal appearance such as lamella was observed at all. The impact strength, haze and adhesion are shown in Table 1.
【００２２】参考のため防曇フィルム及び耐候フィルム
を挿入しないで作成した厚さ３mmのポリカーボネート樹
脂板の衝撃強度及び曇り度を表１に併記した。For reference, the impact strength and haze of a 3 mm-thick polycarbonate resin plate prepared without inserting an antifogging film and a weatherproof film are also shown in Table 1.
【００２３】[0023]
【表１】 [Table 1]
【００２４】[0024]
【発明の効果】本発明によれば、優れた透明性と衝撃強
度を有し且つ耐久性に優れた防曇性と耐候性を備えたポ
リカーボネート樹脂製風防板を極めて容易に且つ経済的
に提供することができ、その奏する効果は格別なもので
ある。According to the present invention, there is provided a polycarbonate resin windshield having excellent transparency and impact strength, excellent durability and excellent anti-fog properties and weather resistance, very easily and economically. And the effects they produce are exceptional.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明のポリカーボネート樹脂製風防板の斜視
図である。FIG. 1 is a perspective view of a polycarbonate resin windshield of the present invention.
１ ポリカーボネート樹脂基板 ２ 防曇フィルム ３ 耐候フィルム Reference Signs List 1 polycarbonate resin substrate 2 anti-fog film 3 weather-resistant film
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. 7 , DB name) B32B 1/00-35/00
Claims (1)
曇性を有するジアセチルセルローズ製のフィルムを、他
方の面に耐候性を有する熱可塑性樹脂フィルムを熱圧着
してなる曇り度３％以下で衝撃強度６０ｋｇｆ・ｃｍ／
ｃｍ以上の性能を有する風防板。1. A shock resistance at a haze of 3% or less, which is obtained by thermocompression bonding a film made of diacetyl cellulose having antifogging properties on one surface of a polycarbonate resin plate and a thermoplastic resin film having weather resistance on the other surface. Strength 60kgf ・ cm /
A windshield with a performance of at least cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04128827A JP3088555B2 (en) | 1992-05-21 | 1992-05-21 | Windshield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04128827A JP3088555B2 (en) | 1992-05-21 | 1992-05-21 | Windshield |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05318671A JPH05318671A (en) | 1993-12-03 |
| JP3088555B2 true JP3088555B2 (en) | 2000-09-18 |
Family
ID=14994393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04128827A Expired - Fee Related JP3088555B2 (en) | 1992-05-21 | 1992-05-21 | Windshield |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3088555B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10233521A1 (en) * | 2002-07-23 | 2004-02-05 | Basf Ag | Radiation-curable coating systems with low-temperature elastic underlayer |
-
1992
- 1992-05-21 JP JP04128827A patent/JP3088555B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05318671A (en) | 1993-12-03 |
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