JP2910337B2 - Decomposition / removal agent for resin coating and method for decomposition / removal of resin coating - Google Patents
Decomposition / removal agent for resin coating and method for decomposition / removal of resin coatingInfo
- Publication number
- JP2910337B2 JP2910337B2 JP3185835A JP18583591A JP2910337B2 JP 2910337 B2 JP2910337 B2 JP 2910337B2 JP 3185835 A JP3185835 A JP 3185835A JP 18583591 A JP18583591 A JP 18583591A JP 2910337 B2 JP2910337 B2 JP 2910337B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- decomposition
- compound
- resin coating
- weight
- 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.)
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- Paints Or Removers (AREA)
Description
【0001】[0001]
【産業上の利用分野】樹脂塗装の加工工程、またはリサ
イクル材の前処理工程において、効果的な塗装除去性
能、良好な作業性、高い環境安全性を有する、樹脂部品
の塗装除去剤及び塗装除去法が求められている。この発
明はオゾン層破壊等を引き起こさず、かつ取扱い性に優
れる、樹脂塗膜の分解除去剤、およびこの分解除去剤を
使用する樹脂塗膜の分解除去方法に関するものである。BACKGROUND OF THE INVENTION Paint removal agent and paint removal for resin parts with effective paint removal performance, good workability, and high environmental safety in the resin coating processing process or the pretreatment process for recycled materials. Law is required. The present invention relates to a resin film decomposition / removal agent which does not cause ozone layer destruction and the like and is excellent in handleability, and a method for decomposing and removing a resin film using the decomposition / removal agent.
【0002】[0002]
【従来の技術】従来の樹脂塗膜の剥離剤としては、クロ
ロペンタフルオロプロパン/1,1ジクロロ−1−トリ
フルオロエタン混合溶剤組成物(特開平2−286795号公
報) およびクロロペンタフルオロプロパン/ジクロロト
リフルオロエタン混合溶剤組成物(特開平2−286796号
公報) 等が提示されている。また、発明者らは既に、樹
脂塗膜除去剤組成液および除去法(特願平3−84643
号) にて物理または化学的に塗膜を除去できる溶剤また
は溶液組成を提示した。さらに、塩化メチレンの如き通
常のハロゲン系溶剤あるいは、強アルカリ溶液あるい
は、強酸溶液がよく知られている。2. Description of the Related Art Conventional stripping agents for resin coatings include chloropentafluoropropane / 1,1-dichloro-1-trifluoroethane mixed solvent composition (JP-A-2-286795) and chloropentafluoropropane. A dichlorotrifluoroethane mixed solvent composition (JP-A-2-286796) and the like have been proposed. Further, the inventors have already prepared a resin coating film remover composition solution and a removing method (Japanese Patent Application No. 3-84643).
No.) provided a solvent or solution composition capable of physically or chemically removing a coating film. Further, ordinary halogen solvents such as methylene chloride, strong alkaline solutions or strong acid solutions are well known.
【0003】[0003]
【発明が解決しようとする課題】前記特開平2−286795
号公報および同2−286796号公報に開示されている混合
溶剤組成物は、対油脂洗浄力に優れ、オゾン層破壊の危
険性が低いという特徴を持つ反面、特殊な溶剤を用いる
ため電気部品等の用途に限定されること、かつ、分子鎖
に多数のハロゲン原子(F、Cl )を含有するため、環
境衛生上取扱いに注意を要することなどの問題点があっ
た。また通常のハロゲン系溶剤の使用は環境衛生を悪化
させると同時に、オゾン層破壊を引き起こすという問題
があった。強アルカリ溶液、強酸溶液の使用において
も、作業安全性、環境安全上の問題と共に、中和等の後
処理工程が必須であるなどの繁雑さがあった。また、前
記特願平3−84643号明細書に記載した混合溶剤組成物
は、塗膜樹脂の溶液濡れ性および溶液浸透性が小さく、
また、チオシアン酸塩を用いた場合イオン解離も小さい
というような問題点があった。SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Application Laid-Open No. 2-286795.
The mixed solvent compositions disclosed in Japanese Patent Application Laid-Open Nos. 2-286796 and 2002-286796 are excellent in detergency against oils and fats and have a low risk of destruction of the ozone layer. In addition, there are problems such as that the use is limited to the above, and that since the molecular chain contains a large number of halogen atoms (F, Cl), care must be taken for handling in terms of environmental hygiene. In addition, there is a problem that the use of a normal halogen-based solvent deteriorates environmental hygiene and also causes ozone layer destruction. The use of a strong alkaline solution or a strong acid solution also involves problems such as work safety and environmental safety, as well as complexity such as the necessity of a post-treatment step such as neutralization. Further, the mixed solvent composition described in the specification of Japanese Patent Application No. 3-84643 has a small solution wettability and solution permeability of the coating film resin,
Further, when thiocyanate is used, there is a problem that ion dissociation is small.
【0004】[0004]
【課題を解決するための手段】この発明は、従来のこの
ような問題点に着目してなされたもので、アルカリ金属
(1A族)またはアルカリ土類金属(2A族)或いは4
級アンモニウムのチオシアン酸塩からなる化合物Cを8
〜65重量%、望ましくは10〜40重量%、常圧における沸
点が 100℃以下のアルコール類からなる化合物Dを10〜
85重量%、望ましくは20〜60重量%、水5〜60重量%、
望ましくは10〜30重量%の3成分から構成される混合液
からなる樹脂塗膜の分解除去剤を50〜120 ℃、望ましく
は50〜100 ℃で樹脂塗装処理樹脂部品に噴霧若しくは塗
布するか、或いは、前記分解除去剤に上記樹脂部品を浸
漬することにより、上記問題点を解決したものである。SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and is directed to an alkali metal (group 1A), an alkaline earth metal (group 2A), or an alkali metal (group 2A).
Compound C consisting of quaternary ammonium thiocyanate
Compound D consisting of alcohols having a boiling point of 100 ° C. or less at normal pressure.
85% by weight, desirably 20-60% by weight, water 5-60% by weight,
It is preferable to spray or apply a resin coating decomposition / removing agent consisting of a mixture of three components of 10 to 30% by weight at 50 to 120 ° C., preferably 50 to 100 ° C. Alternatively, the above-described problem is solved by immersing the resin component in the decomposition remover.
【0005】本発明の樹脂塗膜の分解除去剤は、アルカ
リ金属(1A族)またはアルカリ土類金属(2A族)或
いは4級アンモニウムのチオシアン酸塩からなる化合物
Cを8〜65重量%、常圧における沸点が 100℃以下のア
ルコール類からなる化合物Dを10〜85重量%、水5〜60
重量%の3成分から構成されることを特徴とするもので
ある。上記化合物Cとしては、 M(S=C=N)n 〔式中のMはアルカリ金属(1A族)或いはアルカリ土
類金属(2A族)、或いは4級アンモニウムを示す〕で
表されるチアシアン酸塩類が用いられる。また上記化合
物Dとしては、次式 R4 −OH 〔式中のR4 はCnH2n+1(n=1〜10) または芳香族
基を示す〕で表わされるモノオール、次式 HO−R5 −OH 〔式中のR5 はCnH2n(n=2〜10) または芳香族基
を示す〕で表されるジオ−ル、次式The decomposition-removing agent for the resin coating film of the present invention contains 8 to 65% by weight of a compound C consisting of an alkali metal (group 1A) or alkaline earth metal (group 2A) or a quaternary ammonium thiocyanate. 10 to 85% by weight of a compound D consisting of alcohols having a boiling point of 100 ° C. or less at a pressure of 5 to 60%
It is characterized by being composed of three components by weight. As the compound C, thiocyanic acid represented by M (S = C = N) n wherein M represents an alkali metal (group 1A) or an alkaline earth metal (group 2A), or a quaternary ammonium Salts are used. Examples of the compound D, the following formula R 4 -OH monool [R 4 in the formula is the CnH 2n + 1 indicating the (n = 1 to 10) or an aromatic group] represented by the following formula HO-R 5 A diol represented by —OH wherein R 5 represents CnH 2n (n = 2 to 10) or an aromatic group;
【化1】 または次式Embedded image Or the following equation
【化2】 で表されるトリオール、次式Embedded image A triol represented by the following formula
【化3】 〔式中のR6 はCnH2n-1(n=4〜5) で表されるテ
トラオールが用いられる。Embedded image [R 6 in the formula is a tetraol represented by CnH 2n-1 (n = 4 to 5).
【0006】[0006]
【作用】上記化合物Cの作用は、塗装樹脂またはプライ
マー樹脂と反応し、それを分解除去する。化合物Cのチ
オシアン酸金属塩は、次のモデル反応式化4に従い、塗
装樹脂またはプライマー樹脂を分解除去する。The function of the compound C is to react with the coating resin or the primer resin and decompose and remove it. The metal thiocyanate of the compound C decomposes and removes the coating resin or the primer resin according to the following model reaction formula 4.
【化4】 Embedded image
【0007】すなわち、化合物Cのイオン解離により発
生した有機イオンラジカル、および化合物Dのアルコー
ル成分が、塗料樹脂中のエーテル結合部分を選択的に分
解せしめる。That is, the organic ion radical generated by the ion dissociation of the compound C and the alcohol component of the compound D selectively decompose the ether bond in the coating resin.
【0008】一方、化合物Cの溶媒である化合物Dは、
1〜4個のヒドロキシル基を有するモノ、ジ、トリ、テ
トラオール等のアルコール類から成る。化合物Dの作用
としては、塗装樹脂の溶液濡れ性および溶液浸透性を促
進すること、即ち樹脂塗装またはプライマーを膨潤させ
て、化合物Cの拡散/浸透を促進させること、並びに、
チオシアン酸金属塩のごとき化合物Cのイオンラジカル
を溶媒和することがあげられる。そのため、n−ドデカ
ノールのごとく炭素連鎖が長すぎるのは親水性が高く不
都合であり、炭素連鎖長は10個程度が使用限界である。On the other hand, compound D, which is a solvent for compound C,
It is composed of alcohols such as mono, di, tri, tetraol having 1 to 4 hydroxyl groups. The action of compound D is to promote the solution wettability and solution permeability of the coating resin, ie, to swell the resin coating or primer to promote the diffusion / penetration of compound C;
Solvating ion radicals of compound C such as metal thiocyanate. Therefore, it is inconvenient that the carbon chain is too long like n-dodecanol because of high hydrophilicity, and the use limit is about 10 carbon chains.
【0009】また、化合物Cの直接的な溶媒である水の
作用としては、前記アルコール類の作用と同様に化合物
Cの拡散/浸透を促進させること、並びにチオシアン酸
金属塩のごとき化合物Cのイオンラジカルを溶媒和する
ことのほかに、塗装樹脂の溶液濡れ性の向上、イオン解
離を飛躍的に大きくすることがあげられる。The action of water, which is a direct solvent of the compound C, is to promote the diffusion / permeation of the compound C in the same manner as the action of the alcohols, and to promote the ionization of the compound C such as metal thiocyanate. In addition to solvation of radicals, improvement of solution wettability of coating resin and drastic increase of ion dissociation can be mentioned.
【0010】上記のようなことから、化合物Cの濃度が
8重量%未満の低濃度になると、塗装樹脂またはプライ
マー樹脂を十分に分解できない。一方、溶媒に対する溶
解度の問題により、化合物Cの濃度を65重量%より増加
させることは、現実的に不可能である。また、水の濃度
が10重量%未満の低濃度になると、十分なイオン解離が
行えず分解除去を行うことができない。一方、水の濃度
が60重量%より増加すると、塗装樹脂の溶液濡れ性およ
び拡散/浸透性が著しく低下すること並びに化合物Cが
安定に溶媒和されることから、塗装分解除去能力が損な
われる。次に、アルコール類の濃度が10重量%未満にな
ると、塗装樹脂の溶液濡れ性、および拡散/浸透性が著
しく低下するため使用できない。一方、アルコール類の
濃度が85重量%より増加すると、化合物Cの溶解度の低
下を招くと共に、化合物Cが適度に溶媒和されないこと
から、塗装分解除去剤に適さない。また、反応温度が50
℃より低くなると、化合物Dが塗装樹脂またはプライマ
ー樹脂を十分に膨潤させることができず、化合物Cも塗
装樹脂またはプライマー樹脂に十分拡散/浸透できず、
それらを分解せしめることができない。一方、反応温度
が 100℃より高くなると溶媒の蒸発により組成変化が起
こり操作が難しく、実用に適さなくなってしまう。As described above, when the concentration of compound C is lower than 8% by weight, the coating resin or the primer resin cannot be sufficiently decomposed. On the other hand, it is practically impossible to increase the concentration of compound C above 65% by weight due to the problem of solubility in a solvent. On the other hand, when the concentration of water is as low as less than 10% by weight, sufficient ion dissociation cannot be performed, and decomposition and removal cannot be performed. On the other hand, if the concentration of water is higher than 60% by weight, the solution wettability and the diffusion / permeability of the coating resin are significantly reduced, and the compound C is solvated stably, thereby impairing the ability to remove and remove the coating. Next, if the concentration of alcohols is less than 10% by weight, the wettability of the coating resin and the diffusion / permeability of the coating resin are remarkably reduced, so that they cannot be used. On the other hand, when the concentration of the alcohols is more than 85% by weight, the solubility of the compound C is lowered, and the compound C is not solvated properly. The reaction temperature is 50
When the temperature is lower than 0 ° C., the compound D cannot swell the coating resin or the primer resin sufficiently, and the compound C cannot sufficiently diffuse / permeate the coating resin or the primer resin,
They cannot be disassembled. On the other hand, if the reaction temperature is higher than 100 ° C., the composition changes due to the evaporation of the solvent, and the operation becomes difficult, which makes it unsuitable for practical use.
【0011】[0011]
【実施例】以下本発明を実施例および比較例により説明
する。樹脂塗の分解膜除去剤組成液の調整例 温室で前記化合物CおよびD(液体)および水を自動天
秤にて所定重量秤量し、ビーカー中で化合物Cを化合物
Dに溶解させた。その際、マグネチックスターラー、攪
拌子を用いて攪拌し、場合によってはウォータバス又は
オイルバスにて加温して、樹脂塗膜の分解除去剤を調製
した。The present invention will be described below with reference to examples and comparative examples. Preparation Example of Resin-coated Decomposed Film Remover Composition Liquid The compounds C and D (liquid) and water were weighed by an automatic balance in a greenhouse at a predetermined weight, and the compound C was dissolved in the compound D in a beaker. At that time, the mixture was stirred using a magnetic stirrer and a stirrer, and in some cases, heated in a water bath or an oil bath to prepare a decomposition remover for the resin coating film.
【0012】表1の樹脂塗膜の分解除去評価結果に具体
的な樹脂塗膜の分解除去剤の調製例を示した。尚、工業
的には、前記化合物Dの密度を利用し、重量換算した体
積を秤量して前記樹脂塗装の分解除去剤を調製すること
も可能である。Table 1 shows the results of the evaluation of the decomposition and removal of the resin coating film. In addition, industrially, it is also possible to prepare a decomposition remover for the resin coating by weighing the converted volume by using the density of the compound D.
【0013】樹脂塗膜の分解除去評価試験例 次に、前記樹脂塗膜の分解除去剤を適量(約100ml)ナス
型フラスコに取りマグネチックスターラー攪拌子にて、
設定温度(50〜100 ℃) になるまで、還流した。前記分
解除去剤を設定温度に保持後、樹脂塗装処理樹脂部品か
ら、切りだした横約10mm×縦約10mm×厚約2mmの割断片
5個を、フラスコ内に投入し、前記分解除去剤に45分間
浸漬し、15分間放置、観察した。その後、フラスコより
割断片を取りだし、目視にて、樹脂塗装の分解除去状態
を判定した。[0013] a resin decomposed and removed Evaluation Test Examples of the coating film Next, an appropriate amount of degradation removing agent of the resin film (about 100ml) placed in a round-bottom flask magnetic stirrer stirring element,
Reflux until the set temperature (50-100 ° C) is reached. After maintaining the decomposition remover at a set temperature, five pieces of about 10 mm width × about 10 mm height × about 2 mm thickness cut out from the resin coating treated resin part are put into a flask, and the decomposition remover is used as the decomposition remover. It was immersed for 45 minutes, left for 15 minutes, and observed. Thereafter, the split pieces were removed from the flask, and the state of decomposition and removal of the resin coating was visually determined.
【0014】表1の樹脂塗装の分解除去評価において、
具体的な評価試験例を示した。尚、評価試験に供した樹
脂塗装処理樹脂の種類は、2種( I, II)で両者は、塗
装樹脂、プライマー樹脂の化学組成が異なる。表1中、
評価試験後、塗装樹脂、プライマー樹脂に変化が観察さ
れた場合、プライマー樹脂が分解された場合は◎印、塗
装樹脂が分解された場合は○印、一部溶解または分解ま
たは膨潤が認められた場合は△印、変化が認められない
場合は×印の覧にそれぞれ変化した個数を示した。(試
験試料はそれぞれ5個とした)In the evaluation of decomposition and removal of the resin coating in Table 1,
Specific evaluation test examples are shown. The types of the resin-coated resins used in the evaluation test were two (I, II), and both had different chemical compositions of the coating resin and the primer resin. In Table 1,
After the evaluation test, when a change was observed in the coating resin and the primer resin, ◎ mark when the primer resin was decomposed, ○ mark when the coating resin was decomposed, partial dissolution or decomposition or swelling was observed In this case, the number of changes was indicated in a circle, and in the case of no change, the number of changes was indicated in a cross. (5 test samples each)
【0015】実施例1 樹脂塗膜の分解除去剤(チオシアン酸ナトリウム/エタ
ノール/水=45重量%/22重量%/33重量%) の約 100
mlを 200mlのナス型フラスコに取り、ウォーターバス
上、マグネチックスターラーを用いて攪拌し、所定温度
になるまで還流した。次に、樹脂塗装部品(塗装I, II)
の割断片(横×縦×厚=10×10×2mm) を各5個切り出
し、フラスコ中の樹脂塗膜の分解除去剤液中へ浸漬し、
30分間処理した。その後、フラスコの内容物をビーカー
に取り出し、割断片の樹脂塗装、プライマー樹脂の分解
程度を目視にて確認した。得た結果は表1に示す通りで
ある。実施例2〜14、比較例1〜9 表1に示す実施例2〜14、比較例1〜9の各樹脂塗膜の
分解除去剤を使用し、所定温度を表1に示す温度(ウォ
ーターバス又は、オイルバス加温)とした以外は、実施
例1と同様にして樹脂塗装部品の割断片を処理し、各割
断片の塗装樹脂、プライマー樹脂の分解程度を目視にて
確認した。得た結果は表1に示す通りである。 Example 1 About 100 parts of a decomposition remover (sodium thiocyanate / ethanol / water = 45% by weight / 22% by weight / 33% by weight) of a resin coating film
The mixture was placed in a 200 ml eggplant-shaped flask, stirred on a water bath using a magnetic stirrer, and refluxed until a predetermined temperature was reached. Next, resin painted parts (painting I, II)
5 pieces each (width × length × thickness = 10 × 10 × 2 mm) are cut out and immersed in a solution for decomposing and removing the resin coating in the flask,
Treated for 30 minutes. Thereafter, the contents of the flask were taken out into a beaker, and the resin coating of the split pieces and the degree of decomposition of the primer resin were visually checked. The results obtained are as shown in Table 1. Examples 2 to 14 and Comparative Examples 1 to 9 The decomposing and removing agents for the resin coatings of Examples 2 to 14 and Comparative Examples 1 to 9 shown in Table 1 were used, and the predetermined temperature was set to the temperature shown in Table 1 (water bath). Alternatively, the split pieces of the resin-coated part were treated in the same manner as in Example 1 except that the heating was performed in an oil bath, and the degree of decomposition of the coating resin and primer resin of each split piece was visually checked. The results obtained are as shown in Table 1.
【0016】[0016]
【表1】 [Table 1]
【0017】[0017]
【発明の効果】以上説明してきたように、本発明の樹脂
塗膜の分解除去剤は8〜65重量%の化合物Cと10〜85重
量%の化合物Dと5〜60重量%の水から構成したことに
より50乃至100 ℃の温度で、該分解除去剤を樹脂塗装処
理部品に噴霧若しくは塗布するか、或いは該分解除去剤
に浸漬することにより環境衛生を悪化させることも、オ
ゾン層破壊を引き起すこともなく、また求電子部位を持
たない樹脂基材を犯すことなく、塗膜樹脂のみを化学的
に分解し、溶液に可溶化ならしめ好首尾にまた、効率的
に樹脂塗膜を分解除去することができるという効果が得
られる。As described above, the resin film-decomposing / removing agent of the present invention comprises 8 to 65% by weight of compound C, 10 to 85% by weight of compound D and 5 to 60% by weight of water. As a result, at a temperature of 50 to 100 ° C., the decomposing / removing agent is sprayed or applied to the resin-coated parts, or immersed in the decomposing / removing agent, thereby deteriorating environmental hygiene and causing ozone layer destruction. Chemically decomposes only the coating resin without causing it and breaking the resin base material without the electrophilic site, solubilizing it in solution, and successfully and efficiently decomposing the resin coating The effect of being able to remove is obtained.
フロントページの続き (56)参考文献 特開 平4−293975(JP,A) 特開 平5−93157(JP,A) (58)調査した分野(Int.Cl.6,DB名) C09D 9/00 - 9/04 Continuation of the front page (56) References JP-A-4-293975 (JP, A) JP-A-5-93157 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) C09D 9 / 00-9/04
Claims (2)
土類金属(2A族)或いは4級アンモニウムのチオシア
ン酸塩8〜65重量%、常圧における沸点が100 ℃以下の
アルコール類10〜85重量%、水5〜60重量%の3成分か
ら構成されたことを特徴とする樹脂塗膜の分解除去剤。1. An alkali metal (group 1A) or alkaline earth metal (group 2A) or quaternary ammonium thiocyanate 8 to 65% by weight, an alcohol having a boiling point of 100 ° C. or less at normal pressure 10 to 85% by weight. And a decomposing / removing agent for a resin coating film, comprising three components of 5 to 60% by weight of water.
膜の分解除去剤を樹脂塗装部品に噴霧若しくは塗布する
か、或いは前記塗膜分解の除去剤に樹脂塗装製品を浸漬
することにより、塗装樹脂を分解除去することを特徴と
する樹脂塗膜の分解除去方法。2. A method of spraying or applying the resin coating composition-decomposing / removing agent according to claim 1 to a resin-coated part at a temperature of 50 to 100 ° C., or immersing a resin-coated product in said coating composition-removing remover. A method for decomposing and removing a resin coating film, comprising the steps of:
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3185835A JP2910337B2 (en) | 1991-07-01 | 1991-07-01 | Decomposition / removal agent for resin coating and method for decomposition / removal of resin coating |
US07/856,794 US5256210A (en) | 1991-03-25 | 1992-03-24 | Stripping composition for resin paint material and a method of removing resin paint materials |
GB9226893A GB2273715B (en) | 1991-03-25 | 1992-12-23 | A stripping composition for resin paint material and a method of removing resin paint materials |
DE4244355A DE4244355C2 (en) | 1991-03-25 | 1992-12-28 | Resin paint material stripping composition and resin paint material removal method |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3185835A JP2910337B2 (en) | 1991-07-01 | 1991-07-01 | Decomposition / removal agent for resin coating and method for decomposition / removal of resin coating |
GB9226893A GB2273715B (en) | 1991-03-25 | 1992-12-23 | A stripping composition for resin paint material and a method of removing resin paint materials |
DE4244355A DE4244355C2 (en) | 1991-03-25 | 1992-12-28 | Resin paint material stripping composition and resin paint material removal method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH059420A JPH059420A (en) | 1993-01-19 |
JP2910337B2 true JP2910337B2 (en) | 1999-06-23 |
Family
ID=27204619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3185835A Expired - Fee Related JP2910337B2 (en) | 1991-03-25 | 1991-07-01 | Decomposition / removal agent for resin coating and method for decomposition / removal of resin coating |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2910337B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0593157A (en) * | 1991-07-01 | 1993-04-16 | Nissan Motor Co Ltd | Method of stripping resin coating and method of post-treatment |
JP3117808B2 (en) * | 1992-09-25 | 2000-12-18 | 日産自動車株式会社 | Coating removal method |
KR100336834B1 (en) | 1999-05-19 | 2002-05-16 | 주덕영 | Method and apparatus of removing paint film of plastic bumper for automobile |
JP7109030B2 (en) | 2017-10-20 | 2022-07-29 | 地方独立行政法人山口県産業技術センター | METHOD AND APPARATUS FOR PAINT PLASTIC Peeling Film |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2910292B2 (en) * | 1991-03-25 | 1999-06-23 | 日産自動車株式会社 | Resin coating remover composition liquid and removal method |
JPH0593157A (en) * | 1991-07-01 | 1993-04-16 | Nissan Motor Co Ltd | Method of stripping resin coating and method of post-treatment |
-
1991
- 1991-07-01 JP JP3185835A patent/JP2910337B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH059420A (en) | 1993-01-19 |
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