JPH06226742A - Regeneration treatment of painted plastic - Google Patents
Regeneration treatment of painted plasticInfo
- Publication number
- JPH06226742A JPH06226742A JP3731193A JP3731193A JPH06226742A JP H06226742 A JPH06226742 A JP H06226742A JP 3731193 A JP3731193 A JP 3731193A JP 3731193 A JP3731193 A JP 3731193A JP H06226742 A JPH06226742 A JP H06226742A
- Authority
- JP
- Japan
- Prior art keywords
- coating film
- plastic
- coated
- polypropylene
- urethane
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0255—Specific separating techniques using different melting or softening temperatures of the materials to be separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
- B29L2009/005—Layered products coated
- B29L2009/006—Layered products coated painted
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Cleaning In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は使用済み塗装プラスチッ
ク材の再生処理方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recycling used painted plastic material.
【０００２】[0002]
【従来の技術】近年地球環境保全のために使用済みプラ
スチック材料のリサイクルが要望され、各種技術が開発
されている。中でもプラスチックに塗装を施した部品を
再生する場合、再生材料に塗膜が混入すると、機械的特
性が極端に低下するため、塗膜の分離が不可欠となって
いたが、従来はショットブラストによる塗膜除去や、押
出成形機内部で溶融した後にフィルタで分離する方法が
採られていた。2. Description of the Related Art Recently, in order to protect the global environment, recycling of used plastic materials has been demanded, and various techniques have been developed. In particular, when reclaiming plastic-coated parts, if the paint film mixes in the recycled material, the mechanical properties will drop significantly, so separation of the paint film was indispensable. A method of removing the film or separating with a filter after melting inside the extruder has been adopted.
【０００３】[0003]
【発明が解決しようとする課題】従来の塗装プラスチッ
クの再生処理において、塗膜を分離する手段がショット
ブラストの場合は、処理物の形状によりムラが生じて塗
膜が残り易く、これを完全に除去するためには長時間の
処理が必要であった。またショットブラストの効果を上
げるためにショットを強くすると、プラスチックが焼け
たり、ブラストがプラスチックに埋没して異物になるな
どの問題があった。また押出成形機による溶融濾過の場
合は、濾過用フィルタのメッシュを細かくすれば、塗膜
はかなり分離できるが、塗膜が薄いため伸びた破断塗膜
が混入する欠点があった。更に他の弊害として、フィル
タによる圧力損失が大きくなるため、押出量の低下や剪
断発熱によるプラスチックの劣化を来たし、再生材料の
品質低下となる欠点があった。以上のように従来の再生
処理方法では、塗膜の残留、異物の混入、更にプラスチ
ックの劣化等を回避することが出来なかった。本発明は
前記従来の問題を解消できる、効率的で新規な塗装プラ
スチックの再生処理方法を提供しようとするものであ
る。In the conventional recycling treatment of coated plastics, when the means for separating the coating film is shot blasting, unevenness is caused due to the shape of the treated material and the coating film tends to remain. It took a long time to remove it. Further, when the shot is strengthened to improve the effect of shot blasting, there are problems that the plastic is burnt or the blast is buried in the plastic and becomes a foreign substance. Further, in the case of melt filtration using an extrusion molding machine, if the mesh of the filter for filtration is made fine, the coating film can be separated considerably, but there is a drawback that an extended broken coating film is mixed because the coating film is thin. As another adverse effect, there is a drawback that the pressure loss due to the filter becomes large, so that the extrusion amount is reduced and the plastic is deteriorated due to the heat generated by shearing, and the quality of the recycled material is deteriorated. As described above, in the conventional reprocessing method, it is impossible to avoid the residual coating film, the inclusion of foreign matter, and the deterioration of plastic. SUMMARY OF THE INVENTION The present invention is intended to provide an efficient and novel method for recycling a coated plastic, which can solve the above conventional problems.
【０００４】[0004]
【課題を解決するための手段】このため本発明は、塗装
プラスチックの塗膜直下に薄い溶融層を形成させた後、
同溶融層と塗膜を除去するようにしたものであり、また
塗装プラスチックの塗膜除去操作の前処理として塗装面
を平坦化するようにしたもので、これを課題解決の手段
とするものである。更に本発明は、ウレタン塗装したポ
リプロピレン成形品の塗膜を除去する方法において、同
成形品をウレタン塗料のゴム状温度域で、更にポリプロ
ピレンの軟化温度以下の範囲に加熱して塗膜を除去する
ようにしてなるもので、これを課題解決のための手段と
するものである。Therefore, according to the present invention, after forming a thin molten layer immediately below the coating film of coated plastic,
It is designed to remove the molten layer and the coating film, and to flatten the coating surface as a pretreatment for the coating plastic coating film removal operation.This is a means for solving the problem. is there. Further, the present invention is a method for removing a coating film of a urethane-coated polypropylene molded article, wherein the molded article is heated in a rubbery temperature range of the urethane coating and further to a range not higher than the softening temperature of polypropylene to remove the coating film. In this way, this is a means for solving the problem.
【０００５】[0005]
【作用】塗装プラスチック部品の殆どは、熱可塑性プラ
スチックの成形体に熱硬化性プラスチックをベースとし
た塗料が塗装されている。このため塗装表面から急速に
加熱すると、塗膜は溶融せずに塗膜直下のプラスチック
に薄い溶融層が生成する。この薄い溶融層は軟弱であ
り、機械的な剪断力を加えると容易に溶融層から塗膜が
分離できる。溶融層の形成温度は、結晶性プラスチック
では溶融温度以上、非晶性プラスチックではガラス転移
点以上の温度域である。そして急速加熱条件としては、
溶融層を可能な限り薄くして再生材の回収率を上げるた
めに、短時間に塗膜直下のプラスチックを溶融させて、
熱伝導による溶融層の厚化を防止することが、再生プラ
スチックの回収率向上につながる。In most of the coated plastic parts, a thermoplastic resin molding is coated with a coating material based on a thermosetting plastic. Therefore, when the coating surface is heated rapidly, the coating film does not melt and a thin molten layer is formed in the plastic immediately below the coating film. This thin molten layer is soft, and the coating can be easily separated from the molten layer by applying mechanical shearing force. The formation temperature of the molten layer is in the temperature range above the melting temperature for crystalline plastics and above the glass transition point for amorphous plastics. And as the rapid heating conditions,
To make the molten layer as thin as possible and increase the recovery rate of recycled materials, melt the plastic immediately below the coating film in a short time,
Preventing the thickness of the molten layer from increasing due to heat conduction improves the recovery rate of recycled plastic.
【０００６】またウレタン塗装したポリプロピレンを、
ウレタン塗膜のゴム状温度域で、更にポリプロピレンの
軟化温度以下の範囲で加熱することにより、ポリプロピ
レンは固体状態で剛性を保持し、ウレタン塗膜は、ゴム
状態となる。このウレタン塗膜のゴム状態は、ウレタン
が架橋反応で三次元構造となっているため、ポリプロピ
レンの軟化温度域では溶融することはない。このような
状態にすると、ウレタン塗膜はポリプロピレン母材から
容易に剥離できる状態となり、常法の剪断力を与えるこ
とにより、塗膜を分離することが可能である。Polyurethane coated with urethane,
By heating in the rubbery temperature range of the urethane coating film and further in the range not higher than the softening temperature of polypropylene, the polypropylene maintains the rigidity in the solid state and the urethane coating film becomes the rubber state. The rubber state of this urethane coating film does not melt in the softening temperature range of polypropylene because urethane has a three-dimensional structure due to the crosslinking reaction. In such a state, the urethane coating film can be easily separated from the polypropylene base material, and the coating film can be separated by applying a usual shearing force.
【０００７】[0007]
【実施例】以下本発明を図面の実施例について説明する
と、図１は本発明方法を実施する１実施例を示し、１は
塗膜２を施した自動車用のプラスチック製廃バンパー、
３は廃バンパー１上の塗膜を急速に加熱して、塗膜２の
直下に薄い溶融層を形成させる火炎４を噴射するガスバ
ーナであり、この溶融層を介し塗装プラスチック廃バン
パー１のプラスチックと塗膜２を、塗膜の除去手段５
（例えばドクター、回転刃、板状ナイフ、ワイヤブラシ
等）で塗膜屑６として除去する。なお、ガスバーナ３に
よる加熱に代え、赤外線加熱、熱プラズマによる加熱、
加熱板、加熱ローラによる加熱、加熱液体のスプレーに
る加熱、加熱液体浴への浸漬による加熱等の方法が利用
できる。また７はローラ８を用いた廃バンパー１の表面
の倣い手段である。９はガスバーナ３、塗膜の除去手段
５、倣い手段７を一体に固定する固定板である。また本
発明は、前記塗膜２の除去操作の前処理として、プラス
チック廃バンパー１を加熱ロール等を用いてプレスする
ことにより平坦化すれば、塗膜２の除去作業の効率化
と、単純化を図ることができる。また本発明は、ウレタ
ン塗装したポリプロピレン廃バンパーの塗膜除去方法に
も適用でき、この場合にはウレタン塗料のゴム状温度域
で、更にポリプロピレンの軟化温度以下の範囲に加熱し
て塗膜を除去することにより、塗装プラスチックの再生
処理を行なうものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments of the drawings. FIG. 1 shows one embodiment for carrying out the method of the present invention, and 1 is a waste plastic bumper for automobiles coated with a coating film 2.
Reference numeral 3 is a gas burner that rapidly heats the coating film on the waste bumper 1 to inject a flame 4 that forms a thin molten layer directly under the coating film 2. The coating film 2 is replaced with a coating film removing means 5
(For example, a doctor, a rotary blade, a plate knife, a wire brush, etc.) is used to remove the coating film scraps 6. In addition, instead of heating by the gas burner 3, infrared heating, heating by thermal plasma,
Methods such as heating with a heating plate and a heating roller, heating by spraying a heating liquid, and heating by immersion in a heating liquid bath can be used. Reference numeral 7 is a means for copying the surface of the waste bumper 1 using a roller 8. Reference numeral 9 is a fixing plate for integrally fixing the gas burner 3, the coating film removing means 5, and the copying means 7. Further, according to the present invention, if the plastic waste bumper 1 is flattened by pressing using a heating roll or the like as a pretreatment for the removal operation of the coating film 2, the removal operation of the coating film 2 can be made more efficient and simplified. Can be achieved. The present invention can also be applied to a method for removing a coating film from a polypropylene waste bumper coated with urethane. In this case, the coating film is removed by heating in the rubbery temperature range of the urethane coating and further to a range not higher than the softening temperature of polypropylene. By doing so, the coated plastic is recycled.
【０００８】ここで請求項１の具体例を以下に説明す
る。５年間使用した車から回収したプラスチックバンパ
ー（ポリプロピレンとエチレン−プロピレンゴムのポリ
マーブレンドを射出成形し、ウレタン系塗料を施したも
の）の再生処理を行なった。この場合は回収したプラス
チックバンパーを、１５０℃に予熱したプレスにより１
００kg／cm2 の圧力で３０秒間プレスして平坦化した。
その後ガスバーナで塗装面を加熱し、塗膜直下のプラス
チックの温度が、１９０℃に昇温して溶融層が形成され
ていることを確認し、直ちに板状ナイフで塗膜を除去し
た。この除去処理により塗膜はバンパーから完全に除去
することができた。塗膜除去後のバンパーから試験片を
採取し、引張強度と破断伸びを測定したところ、それぞ
れ１８２kgf/cm2 、２４０％の結果を得た。A specific example of claim 1 will be described below. A plastic bumper (a polymer blend of polypropylene and ethylene-propylene rubber was injection-molded and a urethane-based paint was applied) collected from a car that had been used for 5 years was regenerated. In this case, the recovered plastic bumper is pressed by a press preheated to 150 ° C
It was pressed at a pressure of 00 kg / cm 2 for 30 seconds for flattening.
After that, the coated surface was heated with a gas burner, the temperature of the plastic immediately below the coating film was raised to 190 ° C., and it was confirmed that a molten layer had been formed, and the coating film was immediately removed with a plate knife. By this removal treatment, the coating film could be completely removed from the bumper. A test piece was taken from the bumper after removal of the coating film, and the tensile strength and the breaking elongation were measured, and the results were 182 kgf / cm 2 and 240%, respectively.
【０００９】次に前記具体例と比較するために、同じ回
収バンパーを使用し、塗装されたままの状態で破砕した
材料を押出成形機を通して再生した。押出成形機にはメ
ッシュのスクリーンを装着し、樹脂温度を２３０℃で押
出した。押出物はシート状で押出し、前記具体例と同様
に試験片を採取し、引張強度と破断伸びを測定した結
果、それぞれ１４３kgf/cm2 、１１５％となり、前記具
体例に比べて大幅な物性低下が見られた。この原因は、
試験片の破断面に塗膜の存在が確認されたことから、塗
膜破片が異物として作用したことと、溶融、混練による
劣化と推定された。For comparison with the above example, the same recovered bumper was then used to reclaim the as-painted crushed material through an extruder. The extrusion molding machine was equipped with a mesh screen and extruded at a resin temperature of 230 ° C. The extrudate extruded in sheet form, the collected examples as well as the test piece and the measurement results of the tensile strength at break elongation, next each 143kgf / cm 2, 115%, substantial lowering of physical properties in comparison to the Examples It was observed. The cause is
Since the presence of the coating film was confirmed on the fracture surface of the test piece, it was presumed that the coating film fragment acted as a foreign matter and that it was deteriorated due to melting and kneading.
【００１０】次に請求項３に対する具体例を説明する。
５年間使用した車から回収したウレタン塗装ポリプロピ
レン製バンパーから注意深く塗膜とプラスチック部分を
採取し、動的弾性率Ｅ′を測定した結果を図２に示す。
図２より塗膜の動的弾性率は常温（２０℃）から徐々に
低下し、８０℃で約２×１０7 Paとゴム状態となり、そ
の後ほぼ一定の値を示した。一方ポリプロピレンの動的
弾性率は常温（２０℃）で８×１０8 Paと高く、１５０
℃で１０8 Paまで低下し、それ以上の高温側では急激に
動的弾性率が低下し、軟化から溶融状態に至る。そこで
前記ウレタン塗装のポリプロピレンバンパーを、９０
℃、１２０℃、１５０℃の各温度に調整した空気加熱炉
中で３分間加熱し、塗膜がゴム状態になったところで、
直ちにワイヤブラシで塗膜を除去した。塗膜はワイヤブ
ラシ側にフィルム状で掻き取られ、プラスチック側には
塗膜が残らなかった。Next, a specific example for claim 3 will be described.
FIG. 2 shows the results of measuring the dynamic elastic modulus E ′ by carefully collecting the coating film and the plastic part from the urethane-coated polypropylene bumper collected from the car used for 5 years.
From FIG. 2, the dynamic elastic modulus of the coating film gradually decreased from room temperature (20 ° C.) to a rubber state of about 2 × 10 7 Pa at 80 ° C., and thereafter showed a substantially constant value. On the other hand, polypropylene has a high dynamic elastic modulus of 8 × 10 8 Pa at room temperature (20 ° C.), which is 150
The temperature decreases to 10 8 Pa at ℃, and the dynamic elastic modulus sharply decreases on the higher temperature side, and the softening to the melting state occurs. Therefore, replace the urethane-coated polypropylene bumper with 90
After heating for 3 minutes in an air heating furnace adjusted to each temperature of ℃, 120 ℃, 150 ℃, when the coating film becomes rubber state,
The coating film was immediately removed with a wire brush. The coating film was scraped off as a film on the wire brush side, and no coating film remained on the plastic side.
【００１１】[0011]
【発明の効果】以上詳細に説明した如く本発明の請求項
１によると、塗装プラスチックの塗膜直下のプラスチッ
クに薄い溶融層を作ることにより、軟弱層を形成させて
塗膜の剥離を容易とし、回収したプラスチックには、塗
膜等の異物が全く含有することなく、更に溶融・混練し
ないことから、再生時の物性低下を全く起こさせずに再
生プラスチック原料として使用することができる。As described in detail above, according to claim 1 of the present invention, by forming a thin molten layer in the plastic immediately below the coating film of the coated plastic, a soft layer is formed to facilitate the peeling of the coating film. Since the recovered plastic does not contain any foreign matter such as a coating film and is not further melted and kneaded, it can be used as a recycled plastic raw material without causing any deterioration in physical properties during recycling.
【００１２】また本発明の請求項３では、ウレタン塗装
したポリプロピレン成形品を、ウレタン塗料のゴム状温
度域で、更にポリプロピレンの軟化温度以下の範囲に加
熱して、ポリプロピレンから塗膜を除去するようにした
ことにより、回収したポリプロピレンには塗膜等の異物
は全く含有しない剥離処理が行なわれ、溶融・混練しな
いことから、再生時の物性低下を全く起こさせずに、再
生プラスチック原料として使用することができる。また
本発明は、塗装プラスチックの塗膜除去操作の前処理と
して塗装面を平坦化するようにしたので、ブレート等に
よる塗膜除去作業の容易化を図ることができる。According to claim 3 of the present invention, the polypropylene-molded product coated with urethane is heated in the rubber-like temperature range of the urethane coating to a temperature not higher than the softening temperature of polypropylene to remove the coating film from the polypropylene. By doing so, the recovered polypropylene is subjected to a peeling treatment that does not contain foreign matter such as a coating film and does not melt or knead, so it is used as a recycled plastic raw material without causing any deterioration in physical properties during recycling. be able to. Further, according to the present invention, since the coated surface is flattened as a pretreatment for the coating film removing operation of the coated plastic, it is possible to facilitate the coating film removing work by means of the plate or the like.
【図１】本発明の方法を実施する塗膜剥離処理手段の１
例を示す説明図である。FIG. 1 is one of coating film peeling treatment means for carrying out the method of the present invention.
It is explanatory drawing which shows an example.
【図２】本発明の請求項３におけるウレタン塗料とポリ
プロピレン剥離温度域の説明図である。FIG. 2 is an explanatory diagram of a urethane paint and polypropylene peeling temperature range in claim 3 of the present invention.
１ 廃バンパー ２ 塗膜 ３ ガスバーナ ４ 火炎 ５ 塗膜の除去手段 ６ 塗膜屑 ７ 倣い手段 1 waste bumper 2 coating film 3 gas burner 4 flame 5 coating film removing means 6 coating film scrap 7 copying means
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｂ２９Ｋ 105:26 Ｂ２９Ｌ 31:20 4Ｆ (72)発明者 安藤 精持 名古屋市中村区岩塚町字高道１番地 三菱 重工業株式会社名古屋研究所内 (72)発明者 田村 幸夫 名古屋市中村区岩塚町字高道１番地 三菱 重工業株式会社名古屋研究所内 (72)発明者 木下 清 名古屋市中村区岩塚町字高道１番地 三菱 重工業株式会社名古屋研究所内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Reference number within the agency FI technical display location // B29K 105: 26 B29L 31:20 4F (72) Inventor Seijo Iwatsuka, Nakamura-ku, Nagoya Character Highway No. 1 Mitsubishi Heavy Industries, Ltd. Nagoya Research Institute (72) Inventor Yukio Tamura Iwatsuka Town, Nakamura-ku, Nagoya City Character Highway No. 1 Mitsubishi Heavy Industries Ltd. Nagoya Research Institute (72) Inventor Kiyoshi Kinoshita Iwatsuka, Nakamura-ku, Nagoya City No. 1 character highway inside Nagoya Institute of Mitsubishi Heavy Industries, Ltd.
Claims (3)
層を形成させた後、同溶融層と塗膜を除去することを特
徴とする塗装プラスチックの再生処理方法。1. A method for recycling a coated plastic, which comprises forming a thin molten layer directly below the coated film of the coated plastic and then removing the molten layer and the coated film.
の塗膜を除去する方法において、同成形品をウレタン塗
料のゴム状温度域で、更にポリプロピレンの軟化温度以
下の範囲に加熱して塗膜を除去することを特徴とする塗
装プラスチックの再生処理方法。2. A method for removing a coating film of a urethane-molded polypropylene molded product, wherein the molded product is heated in the rubber-like temperature range of the urethane coating material and further to a range not higher than the softening temperature of polypropylene to remove the coating film. A method for recycling coated plastic, which is characterized in that
理として塗装面を平坦化することを特徴とする請求項
１、２記載の塗装プラスチックの再生処理方法。3. The method for reclaiming coated plastic according to claim 1, wherein the coated surface is flattened as a pretreatment for the coating film removing operation of the coated plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3731193A JP3202385B2 (en) | 1993-02-03 | 1993-02-03 | Reprocessing of painted plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3731193A JP3202385B2 (en) | 1993-02-03 | 1993-02-03 | Reprocessing of painted plastic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06226742A true JPH06226742A (en) | 1994-08-16 |
| JP3202385B2 JP3202385B2 (en) | 2001-08-27 |
Family
ID=12494152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3731193A Expired - Fee Related JP3202385B2 (en) | 1993-02-03 | 1993-02-03 | Reprocessing of painted plastic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3202385B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000318095A (en) * | 1998-09-28 | 2000-11-21 | Kuraray Co Ltd | Multilayered film |
| WO2005058570A1 (en) * | 2003-10-31 | 2005-06-30 | Matsushita Electric Industrial Co., Ltd. | Apparatus for separating metal coating film and method for separating metal coating film |
| WO2007099952A1 (en) * | 2006-02-28 | 2007-09-07 | Lintec Corporation | Protection sheet for coating film |
| JP2007229711A (en) * | 2006-02-27 | 2007-09-13 | Aker Yards Sa | Method of eliminating coating, usage and apparatus for applying the method |
| JP2008272995A (en) * | 2007-04-27 | 2008-11-13 | Kyokuto Sangyo Kk | Lining releasing apparatus |
| CN105396844A (en) * | 2015-12-09 | 2016-03-16 | 浦江县乾坤工贸有限公司 | Automatic high-temperature rubberizing plate washing device |
| CN107901277A (en) * | 2017-12-27 | 2018-04-13 | 台州金福桂再生资源利用有限公司 | A kind of bending waste plastic scrapes equipment |
-
1993
- 1993-02-03 JP JP3731193A patent/JP3202385B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000318095A (en) * | 1998-09-28 | 2000-11-21 | Kuraray Co Ltd | Multilayered film |
| WO2005058570A1 (en) * | 2003-10-31 | 2005-06-30 | Matsushita Electric Industrial Co., Ltd. | Apparatus for separating metal coating film and method for separating metal coating film |
| US7838791B2 (en) | 2003-10-31 | 2010-11-23 | Panasonic Corporation | Metal coating removing apparatus and metal coating removing method |
| JP2007229711A (en) * | 2006-02-27 | 2007-09-13 | Aker Yards Sa | Method of eliminating coating, usage and apparatus for applying the method |
| KR101359074B1 (en) * | 2006-02-27 | 2014-02-05 | 에스티엑스 프랑스 에스에이 | A Method of Eliminating a Coating, A Use and Devices Implementing the Method |
| WO2007099952A1 (en) * | 2006-02-28 | 2007-09-07 | Lintec Corporation | Protection sheet for coating film |
| JP2007231117A (en) * | 2006-02-28 | 2007-09-13 | Lintec Corp | Protective sheet of urethane-based coated film for automobile |
| US8574395B2 (en) | 2006-02-28 | 2013-11-05 | Lintec Corporation | Protection sheet for coating film |
| JP2008272995A (en) * | 2007-04-27 | 2008-11-13 | Kyokuto Sangyo Kk | Lining releasing apparatus |
| CN105396844A (en) * | 2015-12-09 | 2016-03-16 | 浦江县乾坤工贸有限公司 | Automatic high-temperature rubberizing plate washing device |
| CN107901277A (en) * | 2017-12-27 | 2018-04-13 | 台州金福桂再生资源利用有限公司 | A kind of bending waste plastic scrapes equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3202385B2 (en) | 2001-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6217804B1 (en) | Painted plastic material recycling process | |
| US20140220280A1 (en) | Process of recycling plastics, products and applications thereof | |
| EP0652093B1 (en) | Method and apparatus for peeling coating from coated plastics and method for recycling plastics | |
| KR930023132A (en) | How to Recycle Plastic from Varnished Plastic Parts | |
| JPH06226742A (en) | Regeneration treatment of painted plastic | |
| GB2278119A (en) | Recycling a resin component | |
| JP3283681B2 (en) | Method of peeling and regenerating coating film of coated plastic molded article | |
| JP3177371B2 (en) | How to recycle painted resin products | |
| CN115073808B (en) | Method for recycling nylon 6 from tire cord fabric, cleaning liquid and regenerated nylon 6 | |
| JP3283682B2 (en) | Method of peeling and regenerating coating film of coated plastic molded article | |
| JP2829236B2 (en) | How to recycle painted resin products | |
| JP3131554B2 (en) | Paint film peeling method and paint film peeling device for painted resin products | |
| JP3177372B2 (en) | How to recycle painted resin products | |
| JPS58381B2 (en) | rubber | |
| JP3228599B2 (en) | Method and apparatus for recycling resin parts | |
| JPH11320561A (en) | Method for recycling resin material | |
| JP3177373B2 (en) | How to recycle painted resin products | |
| CN115678258B (en) | Tire cord fabric recycling high-impact regenerated nylon and preparation method thereof | |
| JPH06100726A (en) | Regenerated composition of resin having coating film or metal-plated resin and its regenerating method | |
| JP3228597B2 (en) | Method and apparatus for recycling resin parts | |
| JPH07112436A (en) | Regenerating method of coated resin component | |
| JP3228598B2 (en) | Method and apparatus for recycling resin parts | |
| Sato et al. | Bumper recycling technology | |
| CN117986689A (en) | Liquid rubber prepared from waste latex and preparation method thereof | |
| JPH11156854A (en) | Method for recycling interior finish material for vehicle and recycled product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20001212 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010515 |
|
| LAPS | Cancellation because of no payment of annual fees |