CN101914280B - Method for producing thin films by recycled plastics - Google Patents

Method for producing thin films by recycled plastics Download PDF

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CN101914280B
CN101914280B CN 201010240594 CN201010240594A CN101914280B CN 101914280 B CN101914280 B CN 101914280B CN 201010240594 CN201010240594 CN 201010240594 CN 201010240594 A CN201010240594 A CN 201010240594A CN 101914280 B CN101914280 B CN 101914280B
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kneading
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plastic
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CN 201010240594
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CN101914280A (en )
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赖明志
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嘉兴南雄高分子有限公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/08Component parts, details or accessories; Auxiliary operations
    • B29C47/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/0009Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the articles
    • B29C47/0026Hollow flexible articles, e.g. blown foils or films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/08Component parts, details or accessories; Auxiliary operations
    • B29C47/78Heating or cooling the material to be extruded or the stream of extruded material or of a preformed part
    • B29C47/80Heating or cooling the material to be extruded or the stream of extruded material or of a preformed part at plasticising zone, e.g. from the feed section until the die entrance
    • B29C47/82Heating or cooling the cylinders
    • B29C47/827Heating or cooling the cylinders characterised by differential heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2947/00Indexing scheme relating to extrusion moulding
    • B29C2947/92Measuring, controlling or regulating
    • B29C2947/92504Controlled parameter
    • B29C2947/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2947/00Indexing scheme relating to extrusion moulding
    • B29C2947/92Measuring, controlling or regulating
    • B29C2947/92819Location or phase of control
    • B29C2947/92857Extrusion unit
    • B29C2947/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2947/92895Barrel or housing

Abstract

The invention relates to a method for producing thin films by recycled plastics, which adopts recycled plastics bait after film formation by blow molding to produce thin films. After twice treatment, the physical property and the heat resistant temperature of the original plastic particles of the recycled bait are slightly lowered, the temperature set in the production process is 3-10 DEG C lowerthan that of normal products, and the products can be qualified after physical property test and water pressure test. The reduction of the production temperature can greatly lower the production costand improve the energy utilization rate.

Description

利用回收塑料生产薄膜的方法 Recycled plastics film by the method of

技术领域 FIELD

[0001] 本发明涉及一种薄膜制造方法,尤其涉及一种利用回收塑料生产薄膜的方法。 [0001] The present invention relates to a method for manufacturing a thin film, particularly to a method of producing a film using a recycled plastic. 背景技术 Background technique

[0002] 发明专利00109827. 6公开了一种废塑料的回收方法,将收集到的塑料袋放入带有许多孔的滚筒中,加入洗涤剂清洗;将洗后的塑料袋放入切割机中,切成细小的塑料片, 同时将净水淋入,进行二级洗涤;然后通过带有小孔的传送带浙去水分,并进入三级加热炉中,分别控制温度为100、190、220°C ;在第一级中塑料表面的水分蒸发,在第二级中塑料变软,在第三级中塑料熔化。 [0002] Patent 00109827.6 invention discloses a method of recycling of waste plastic, plastic bags collected in the drum with a plurality of holes, the detergent was added; the washed plastic bags into the cutter , cut into small pieces of plastic, while Linru clean water, washed for two; and then to the water through the foraminous belt Zhejiang, and into three heating furnace, the temperature is controlled separately 100,190,220 ° C; in the first stage of the evaporation surface of the plastic water, in the second stage becomes soft plastic, the plastic melt in the third stage. 熔化后的塑料从炉外壁开的孔处被挤出,在冷水中被冷却,形成均勻的塑料线;然后在造粒机中将塑料线分成一段段的塑料粒,得到再生料成品颗粒;两次洗涤后的排水经过沉淀和处理后,将混有洗涤剂的水重新进入滚筒洗涤废塑料,将水回用;得到的再生塑料成品颗粒与聚乙烯可以根据7 : 3配比重新熔炼,制造出塑料再生品。 After the molten plastic is extruded from the orifice of the outer wall of the furnace open, is cooled in cold water to form a homogeneous plastic wire; plastic pellets and then into a section of the plastic line in the granulator, to give the finished particle renewable materials; two drainage after washing times after treatment and precipitation, the water mixed with detergent into the wash basket re plastic waste, the reuse water; recycled plastic finished granules obtained according to the polyethylene 7: 3 ratio remelted, producing a plastics recycling products. 该方法回收的废塑料难以直接用于薄膜生产过程中。 The recycling method for the waste plastic is difficult to directly during film production.

发明内容 SUMMARY

[0003] 本发明的目的是提供一种利用回收塑料生产薄膜的方法,对塑料制品生产过程中的废料进行回收后,直接用于薄膜的生产,减少环境污染。 [0003] The object of the present invention is to provide a recycled plastic film production method, the production process of plastic waste products recovered, was used directly in the production of film, reduce environmental pollution.

[0004] 一种利用回收塑料生产薄膜的方法,包括如下步骤: [0004] A method for producing a film using a recycled plastic, comprising the steps of:

[0005] 1)吹塑成品膜的塑料饵料经45m/min高速粉碎机压缩成碎片。 [0005] 1) blown plastic bait finished film by 45m / min speed grinder compression pieces.

[0006] 2)将塑料碎片加入造粒机,由单螺杆造粒加工混炼,第一段进料段加工温度50°C,再经第二段混炼段150°C,第三段混炼段156 °C,第四段混炼段158°C,第五段混炼段158°C,第六段混炼段160°C,第七段计量段175°C,第八段混炼段178°C,第九段混炼段183°C后经由7孔状的模具成条状的出料,每个加工段的时间均为30分钟。 [0006] 2) added to the plastic pieces granulator, granulated by a single-screw kneading process, feed section of the first stage processing temperature 50 ° C, and then the second stage mixing section 150 ° C, mixed with a third segment refining segment 156 ° C, the fourth segment kneading sections 158 ° C, the fifth paragraph kneading segments 158 ° C, sixth paragraph mixing section 160 ° C, the seventh section metering section 175 ° C, kneading the eighth segment section 178 ° C, the ninth-stage kneading section 7 via apertures 183 ° C into the strip-shaped mold of the material, the processing time of each period is 30 minutes.

[0007] 3)出料后,滚筒式的切刀台切成粒状。 After [0007] 3) the discharge, the drum is cut into a granular knife table.

[0008] 4)向热塑性弹性体原料(TPU)中加入5-10% (w/w)步骤3)塑料粒,10% (w/w) 表面外滑剂和8% (w/w)雾面剂在混料机搅拌均勻后,除湿干燥机烘干;然后于螺杆筒体中进行5段式加热混炼加工,对原料热熔混炼成液态流体, [0008] 4) 5-10% was added to the raw material thermoplastic elastomer (TPU) of (w / w) Step 3) plastic pellets, 10% (w / w) lubricant and an outer surface 8% (w / w) Fog surface agents after stirring for uniform mixing machine, a drier desiccant; then subjected to heating and kneading processing stage 5 to the screw barrel, the raw material melt kneaded to liquid fluid,

[0009] 第一段进料段温度设定150°C,时间12-20分钟; [0009] The first stage feed zone temperature was set 150 ° C, time 12-20 min;

[0010] 第二段混炼段温度设定165°C,时间12-20分钟; [0010] The second stage mixing zone temperature setting 165 ° C, time 12-20 min;

[0011] 第三段混炼段温度设定178°C,时间3-15分钟; [0011] The third stage kneading zone temperature setting 178 ° C, time of 3-15 min;

[0012] 第四段高混炼段温度设定183°C,时间3-15分钟; [0012] The fourth segment of high kneading section temperature setting 183 ° C, time of 3-15 min;

[0013] 第五段计算段温度设定185°C,时间1-10分钟; [0013] The fifth section calculating section temperature setting 185 ° C, 1-10 min;

[0014] 制得的液态流体由吹膜机模具吹朔成管状薄膜,经冷却后由成形导轮压合成双层薄膜。 [0014] The resulting liquid stream from the blowing machine blowing into a tubular film die moon, after cooling by a compression molding synthetic layer film guide rollers.

[0015] 表面外滑剂选自于二氧化硅、乙撑双油酸酰胺或碳酸钙。 [0015] The outer surface of the slip agent is selected from silica, ethylene bis-oleic acid amide or calcium carbonate.

[0016] 雾面剂为苯乙烯与丁二烯乳浆共聚物。 [0016] The matting agent is a copolymer of styrene and butadiene whey. [0017] 本发明技术方案实现的有益效果: [0017] aspect of the present invention achieves advantageous effects:

[0018] 本发明提供一种利用回收塑料生产薄膜的方法,利用吹朔成膜的塑料饵料经回收后再用于薄膜生产。 [0018] The present invention provides a method of producing a film using a recycled plastic, using a blow-forming a plastic food moon then recovered by a film production. 因回收耳料经过两次加工后,其物性与原塑粒的耐热温度有稍微下降, 生产过程设定温度会比生产一般正常产品的温度低3-10度,而成品经过物性及水压测试都能通过测试。 Material recovered by the ear twice after processing, physical properties and heat resistance temperature of the plastic raw grains has slightly dropped, the production process than the set temperature of the normal production product generally 3-10 degrees lower temperatures, and the physical properties and water pressure through the finished testing can pass the test. 生产温度的降低显著降低了生产成本和提高了能源利用。 Lower production temperatures significantly reducing the production cost and improving the energy utilization.

具体实施方式 detailed description

[0019] 以下详细描述本发明的技术方案。 [0019] aspect of the present invention is described in detail below.

[0020] 实施例1 [0020] Example 1

[0021] 由吹塑成品膜两侧所切下条状的耳料在经由耳料卷取机卷成圆筒状后,将一颗颗卷筒耳料,挂在铁架上由四颗为一组拉条经由高速粉碎机45m/min速度压缩成塑料碎片。 [0021] blown from the ear material of the finished film at both sides of the strip cut in the ear via the coiler material into a cylindrical shape, the material dolphin ear drum, hanging on the hob of the four compressed into a set of brace via plastic debris / min speed of the high-speed grinder 45m.

[0022] 接着,将塑料碎片加入造粒机,由单螺杆造粒分9段,每段30分钟进行加工:第一段进料段加工温度50°C,再经第二段混炼段150°C,第三段混炼段156°C,第四段混炼段158°C,第五段混炼段158°C,第六段混炼段160°C,第七段计量段175°C,第八段混炼段178°C,第九段混炼段183°C后经由7孔状的模具成条状的出料。 [0022] Next, the plastic pieces is added granulator, granulated by a single screw points 9, each section 30 minutes processing: the first feeding section working temperature 50 ° C, and then the second section 150 mixing section ° C, the third segment kneading sections 156 ° C, the fourth segment kneading sections 158 ° C, the fifth paragraph kneading segments 158 ° C, sixth paragraph mixing section 160 ° C, metering zone 175 ° seventh segment . C, para eighth mixing section 178 ° C, the ninth-stage kneading segments 183 ° C into strips 7 via the discharge hole-shaped mold.

[0023] 出料后,经过两个3米长的冷却水槽及吸水装置冷却成型,排除水份后再到滚筒式的切刀台切成粒状。 After [0023] the material, through two 3 m long cooling means for cooling the molding tank and the water absorption, to exclude moisture and then cut into the drum of the knife table particulate.

[0024] 向热塑性弹性体原料中加入6. 2% (w/w)粒状塑料,10% (w/w) 二氧化硅和8% (w/w)苯乙烯与丁二烯乳浆共聚物在混料机搅拌均勻后,除湿干燥机烘干;然后于螺杆筒体中进行5段式加热混炼加工,对原料热熔混炼成液态流体, [0024] 6.2% was added to the raw material thermoplastic elastomer (w / w) granulated plastic, 10% (w / w) silica, and 8% (w / w) copolymer of styrene and butadiene whey after stirring for uniform mixing machine, a drier desiccant; then subjected to heating and kneading processing stage 5 to the screw barrel, the raw material melt kneaded to liquid fluid,

[0025] 第一段进料段温度设定150°C,时间12分钟; [0025] The first stage feed zone temperature was set 150 ° C, time of 12 minutes;

[0026] 第二段混炼段温度设定165°C,时间12分钟; [0026] The second stage mixing zone temperature setting 165 ° C, time of 12 minutes;

[0027] 第三段混炼段温度设定178°C,时间3分钟; [0027] The third stage kneading zone temperature setting 178 ° C, 3 minutes;

[0028] 第四段高混炼段温度设定183°C,时间3分钟; [0028] The fourth segment of high kneading section temperature setting 183 ° C, 3 minutes;

[0029] 第五段计算段温度设定185°C,时间1分钟。 [0029] The fifth section calculating section temperature setting 185 ° C, 1 minute.

[0030] 制得的液态流体由吹膜机模具吹朔成管状薄膜,经冷却后由成形导轮压合成双层薄膜。 [0030] The resulting liquid stream from the blowing machine blowing into a tubular film die moon, after cooling by a compression molding synthetic layer film guide rollers.

[0031] 实施例2 [0031] Example 2

[0032] 由吹塑成品膜两侧所切下条状的耳料在经由耳料卷取机卷成圆筒状后,将一颗颗卷筒耳料,挂在铁架上由四颗为一组拉条经由高速粉碎机45m/min速度压缩成塑料碎片。 [0032] blown from the ear material of the finished film at both sides of the strip of material cut in the ear via the winding machine into a cylindrical shape, the material dolphin ear drum, hanging on the hob of the four compressed into a set of brace via plastic debris / min speed of the high-speed grinder 45m.

[0033] 接着,将塑料碎片加入造粒机,由单螺杆造粒分9段,每段30分钟进行加工:第一段进料段加工温度50°C,再经第二段混炼段150°C,第三段混炼段156°C,第四段混炼段158°C,第五段混炼段158°C,第六段混炼段160°C,第七段计量段175°C,第八段混炼段178°C,第九段混炼段183°C后经由7孔状的模具成条状的出料。 [0033] Next, the plastic pieces is added granulator, granulated by a single screw points 9, each section 30 minutes processing: the first feeding section working temperature 50 ° C, and then the second section 150 mixing section ° C, the third segment kneading sections 156 ° C, the fourth segment kneading sections 158 ° C, the fifth paragraph kneading segments 158 ° C, sixth paragraph mixing section 160 ° C, metering zone 175 ° seventh segment . C, para eighth mixing section 178 ° C, the ninth-stage kneading segments 183 ° C into strips 7 via the discharge hole-shaped mold.

[0034] 出料后,经过两个3米长的冷却水槽及吸水装置冷却成型,排除水份后再到滚筒式的切刀台切成粒状。 After [0034] the material, through two 3 m long cooling means for cooling the molding tank and the water absorption, to exclude moisture and then cut into the drum of the knife table particulate.

[0035] 向热塑性弹性体原料中加入7% (w/w)粒状塑料,10% (w/w) 二氧化硅和8% (w/ w)苯乙烯与丁二烯乳浆共聚物在混料机搅拌均勻后,除湿干燥机烘干;然后于螺杆筒体中进行5段式加热混炼加工,对原料热熔混炼成液态流体,[0036] 第一段进料段温度设定150°C,时间13分钟; [0035] was added 7% (w / w) in the thermoplastic elastomer in granular plastic raw material, 10% (w / w) silica, and 8% (w / w) copolymer of styrene and butadiene in the mixed whey stir the feeder, desiccant drying machine; stage 5 then heated and kneaded in a screw barrel processing, by kneading the liquid fluid material to melt, [0036] the first stage feed zone temperature was set 150 ° C, for 13 min;

[0037] 第二段混炼段温度设定165°C,时间13分钟; [0037] The second stage mixing zone temperature setting 165 ° C, for 13 min;

[0038] 第三段混炼段温度设定178°C,时间4分钟; [0038] The third stage kneading zone temperature setting 178 ° C, 4 minutes;

[0039] 第四段高混炼段温度设定183°C,时间4分钟; [0039] The fourth segment of high kneading section temperature setting 183 ° C, 4 minutes;

[0040] 第五段计算段温度设定185°C,时间2分钟。 [0040] The fifth section calculating section temperature setting 185 ° C, 2 minutes.

[0041] 制得的液态流体由吹膜机模具吹朔成管状薄膜,经冷却后由成形导轮压合成双层薄膜。 [0041] The liquid stream obtained by the film blowing machine blowing into a tubular film die moon, after cooling by a compression molding synthetic layer film guide rollers.

5 5

Claims (3)

  1. 1. 一种利用回收塑料生产薄膜的方法,包括如下步骤:1)吹塑成品膜的塑料饵料经45m/min高速粉碎机压缩成碎片;2)将塑料碎片加入造粒机,由单螺杆造粒加工混炼,第一段进料段加工温度50°C,再经第二段混炼段150°C,第三段混炼段156°C,第四段混炼段158°C,第五段混炼段158°C,第六段混炼段160°C,第七段计量段175°C,第八段混炼段178°C,第九段混炼段183°C后经由7孔状的模具成条状的出料,每个加工段的时间均为30分钟;3)出料后,在滚筒式的切刀台切成粒状;4)向热塑性弹性体原料中加入5-10w/w%步骤幻塑料粒,表面外滑剂和8w/ «%雾面剂在混料机搅拌均勻后,除湿干燥机烘干;然后于螺杆筒体中进行5段式加热混炼加工,对原料热熔混炼成液态流体,第一段进料段温度设定150°C,时间12-20分钟; 第二段混炼段温度设定165°C,时间12-20分钟; 第三段混炼 1. A method for producing a film using a recycled plastic, comprising the steps of: 1) a plastic bait finished film blown by 45m / min speed grinder compressed into pieces; 2) added to the granulator plastic pieces, made by a single screw kneading granulation process, the first stage feed section of the processing temperature 50 ° C, and then the second stage mixing section 150 ° C, the third segment kneading sections 156 ° C, the fourth segment kneading sections 158 ° C, of five kneading segment section 158 ° C, sixth paragraph mixing section 160 ° C, the seventh section metering section 175 ° C, kneading segment section VIII 178 ° C, kneading segment section after the ninth through 7 183 ° C hole-like mold into strips of the material, the processing time of each period is 30 min; 3) discharge, in the drum-type cutter cut particulate station; 4) is added to the thermoplastic elastomer 5- feedstock 10w / w% plastic pellets magic step, the outer surface of the slip agent and 8w / «% matting agent after the mixer stir desiccant dryer drying; and then heated in a 5-stage mixing screw barrel processing, kneaded to melt the raw material liquid fluid, the first stage feed zone temperature was set 150 ° C, time 12-20 min; second stage kneading zone temperature setting 165 ° C, time 12-20 min; third mixing section 温度设定178°C,时间3-15分钟; 第四段高混炼段温度设定183°C,时间3-15分钟; 第五段计算段温度设定185°C,时间1-10分钟;制得的液态流体由吹膜机模具吹朔成管状薄膜,经冷却后由成形导轮压合成双层薄膜。 Temperature setting 178 ° C, time of 3-15 min; kneading segments fourth paragraph high temperature setting 183 ° C, time of 3-15 min; fifth paragraph calculating section temperature setting 185 ° C, 1-10 min ; prepared liquid fluid into a tubular film by the blowing Schomburg mold blowing machine, after cooling the pressure of the synthesis of the guide wheel shaped two-layer film.
  2. 2.根据权利要求1所述的利用回收塑料生产薄膜的方法,其特征是所述的表面外滑剂选自于二氧化硅、乙撑双油酸酰胺或碳酸钙。 2. The method of using recycled plastics film according to claim 1, characterized in that the outer surface of the slip agent is selected from silica, ethylene bis-oleic acid amide or calcium carbonate.
  3. 3.根据权利要求1所述的利用回收塑料生产薄膜的方法,其特征是所述雾面剂为苯乙烯与丁二烯乳浆共聚物。 3. The method of recycled plastics film according to claim 1, wherein said matting agent is a copolymer of styrene and butadiene whey.
CN 201010240594 2010-07-30 2010-07-30 Method for producing thin films by recycled plastics CN101914280B (en)

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CN102642312B (en) * 2012-05-21 2014-05-21 福建百宏高新材料实业有限公司 Processing method for recovering and processing PET (polyethylene glycol terephthalate) waste film in compounding way by using twin-screw extrusion melting
CN102658655B (en) * 2012-05-21 2014-04-02 福建百宏高新材料实业有限公司 Production process of single-screw extrusion recycling of waste PET (polyester) films
CN106223528A (en) * 2016-08-31 2016-12-14 湖南宝信云建筑综合服务平台股份有限公司 Novel building mechanism capable of being conveniently mounted and used

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US5145617A (en) 1990-10-15 1992-09-08 Duro-Last, Inc. Method of processing scrap roof-membrane sheet material comprising a flexible synthetic fabric substrate enveloped in a thermoplastic plastic envelope
CN1075116A (en) 1993-01-09 1993-08-11 江苏省轻工塑料工业公司塑料研究所 Reproduction technology for leftover bits and pieces of card-protecting film
CN101033297A (en) 2007-04-17 2007-09-12 刘军 Production method for waste recombination plastics regeneration and granulation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5145617A (en) 1990-10-15 1992-09-08 Duro-Last, Inc. Method of processing scrap roof-membrane sheet material comprising a flexible synthetic fabric substrate enveloped in a thermoplastic plastic envelope
CN1075116A (en) 1993-01-09 1993-08-11 江苏省轻工塑料工业公司塑料研究所 Reproduction technology for leftover bits and pieces of card-protecting film
CN101033297A (en) 2007-04-17 2007-09-12 刘军 Production method for waste recombination plastics regeneration and granulation

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