JPS6032858A - Varnish for coating metal surface - Google Patents
Varnish for coating metal surfaceInfo
- Publication number
- JPS6032858A JPS6032858A JP14147283A JP14147283A JPS6032858A JP S6032858 A JPS6032858 A JP S6032858A JP 14147283 A JP14147283 A JP 14147283A JP 14147283 A JP14147283 A JP 14147283A JP S6032858 A JPS6032858 A JP S6032858A
- Authority
- JP
- Japan
- Prior art keywords
- varnish
- polyvinyl butyral
- phenolic resin
- type phenolic
- resol
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は電線、コイル含浸用のフェノール樹脂系ワニス
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a phenolic resin varnish for impregnating electric wires and coils.
従来の電線、コイル含浸用フェノール樹脂系ワニスは単
にレゾール型フェノール樹脂をアルコールに溶解したワ
ニスのため塗膜が硬くて脆い、下地金属との密着性か悪
い、ワニスのタレか多く塗膜厚みか不均一となりしかも
塗膜の厚い部分は硬化時に発泡しやすい等の欠点があり
改良が望まれていたものである。Conventional phenolic resin varnish for impregnating electric wires and coils is simply a varnish made by dissolving resol-type phenolic resin in alcohol, so the coating is hard and brittle, has poor adhesion to the underlying metal, and is prone to sagging or thick coating. There are drawbacks such as non-uniformity and the tendency of foaming in thick areas of the coating film during curing, and improvements have been desired.
本発明の目的は上記欠点を解決するもので、塗膜が適度
の可塑性を有し、下地金属との密着性に優れ、タレの少
ない金属表面被覆用ワニスを提供することにある。The object of the present invention is to solve the above-mentioned drawbacks, and to provide a varnish for coating metal surfaces, which has a coating film having appropriate plasticity, excellent adhesion to the underlying metal, and less sagging.
本発明はレゾール型フェノール樹脂２０〜６０重量％（
以下単に％と記す）にポリビニルブチラール８０〜４０
％を加え有機溶剤に溶解したことを特徴とする金属表面
被覆用ワニスで以下本発明の詳細な説明する。本発明に
用いるフェノール類は、フェノール、クレゾール、キシ
レノール等の単独、混合物、変性物等のフェノール類全
般で特に限定するものではない。ポリビニルブチラール
は特に限定するものではなく通常用いられているものを
そのまま用いることかできるものである。レゾール型フ
ェノール樹脂とポリビニルブチラールの比率はレゾール
型フェノール樹脂２０−６０％に対してポリビニルブチ
ラール８０〜４０％であることが必要である。即ちポリ
ビニルブチラールの景が４０％未満では塗膜の可塑性か
なくなり、８０％をこえると耐熱性か低下するからであ
る。有機溶剤はメチルアルコール、エチルアルコール、
アセトン、メチルエチルケトン、トルエン等の単独、混
合物等レゾール型フェノール樹脂、ポリビニルブチラー
ルを溶解するものであるならばよく特に限定するもので
はない。なお必要に応じてワニスに塗料や顔料等の着色
剤、界面活性剤、カップリング剤等を必要に応じて添加
することもできるものである。The present invention uses a resol type phenolic resin of 20 to 60% by weight (
Polyvinyl butyral 80 to 40 (hereinafter simply expressed as %)
The present invention will be described in detail below using a varnish for coating metal surfaces, which is characterized in that it is dissolved in an organic solvent. The phenols used in the present invention are not particularly limited, and include phenols in general, such as phenol, cresol, xylenol, etc. alone, mixtures, and modified products. Polyvinyl butyral is not particularly limited, and commonly used polyvinyl butyral can be used as is. The ratio of resol type phenolic resin to polyvinyl butyral is required to be 80 to 40% polyvinyl butyral to 20 to 60% of resol type phenolic resin. That is, if the content of polyvinyl butyral is less than 40%, the plasticity of the coating film will be lost, and if it exceeds 80%, the heat resistance will decrease. Organic solvents include methyl alcohol, ethyl alcohol,
Acetone, methyl ethyl ketone, toluene, etc. may be used singly or as a mixture, and there are no particular limitations as long as they can dissolve the resol type phenol resin and polyvinyl butyral. Note that coloring agents such as paints and pigments, surfactants, coupling agents, etc. may be added to the varnish as necessary.
実施例ル
ゾール型フェノール樹脂２５重量部（以下単に部と記す
）に対しポリビニルブチラールπ部を加えてからメチル
エチルケトン、メチルアルコール、トルエンの等夛混合
溶剤に樹脂量が２５％になるように溶解して金属表面被
覆用ワニスを得た。Example: π parts of polyvinyl butyral were added to 25 parts by weight (hereinafter simply referred to as "parts") of Luzole type phenolic resin, and then dissolved in a mixed solvent of equal amounts of methyl ethyl ketone, methyl alcohol, and toluene so that the resin amount was 25%. A varnish for coating metal surfaces was obtained.
実施例２
レゾール型フェノール樹脂聞部、ポリビニルブチラール
４５部を加えた以外は実施例１と同様に処理して金属表
面被覆用ワニスを得た。Example 2 A varnish for coating metal surfaces was obtained in the same manner as in Example 1, except that a resol type phenolic resin portion and 45 parts of polyvinyl butyral were added.
従来例
レゾール製フェノール樹脂のみを用いた以外は実施例１
と同様に処理して金属表面被覆ワニスを得た。Conventional example Example 1 except that only Resol phenol resin was used
A metal surface coating varnish was obtained in the same manner as above.
実施例１及び２と従来例のワニスを鉄板に塗布し性能試
験した結果は第１表に明白なように本発明の金属表面被
覆用ワニスの性能はよく本発明の優れていることを確認
した。The varnishes of Examples 1 and 2 and the conventional example were applied to an iron plate and tested for performance. As shown in Table 1, the performance of the varnish for coating metal surfaces of the present invention was well confirmed to be superior to that of the present invention. .
ｌｌｌｌｓｍ間隔のゴバン目１００ケを作成°シ、セロ
ハンテープを貼りつけ、剥した時の残留数で与る。Create 100 goblets with llllsm spacing, apply cellophane tape, and calculate the number remaining when removed.
米２鉄板を虹径１＋ｉＪの丸梓に巻さつけた時の塗膜の
クラック発生状態をみる。クランク発生なしを合格とす
る。Let's look at the state of cracks in the paint film when a rice 2 iron plate is wrapped around a round Azusa with a rainbow diameter of 1+iJ. A test with no cranking is considered a pass.
来３２００時間処理倣、発（ｌ！；のものを不合格、ｙ
ｔ発生のないものを特徴とする
特許出願人
松下電工株式会社
代理人弁理士 竹 元 敏 丸
（はか２名）After 3,200 hours of processing, the original (l!;) was rejected, y
Applicant for a patent characterized by no t occurrence Toshimaru Takemoto, patent attorney representing Matsushita Electric Works Co., Ltd. (2 people)
Claims (1)
ポリビニルブチラール８０〜４０貴重囁を加え有機溶剤
に溶解したことを特徴とする金属表面被覆用ワニス。(1) A varnish for coating metal surfaces, characterized in that 80 to 40% polyvinyl butyral is added to 20 to 60% by weight of a resol type phenolic resin and dissolved in an organic solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14147283A JPS6032858A (en) | 1983-08-01 | 1983-08-01 | Varnish for coating metal surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14147283A JPS6032858A (en) | 1983-08-01 | 1983-08-01 | Varnish for coating metal surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6032858A true JPS6032858A (en) | 1985-02-20 |
Family
ID=15292677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14147283A Pending JPS6032858A (en) | 1983-08-01 | 1983-08-01 | Varnish for coating metal surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032858A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0641988A1 (en) * | 1993-09-06 | 1995-03-08 | Rütgerswerke Aktiengesellschaft | Layered product, method and adhesive for the manufacturing of such a product |
-
1983
- 1983-08-01 JP JP14147283A patent/JPS6032858A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0641988A1 (en) * | 1993-09-06 | 1995-03-08 | Rütgerswerke Aktiengesellschaft | Layered product, method and adhesive for the manufacturing of such a product |
| TR28795A (en) * | 1993-09-06 | 1997-03-25 | Akzo Nobel Nv | Composite materials and methods and adhesives used in their manufacture. |
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