CN102532699A - Polypropylene colorant and preparation method thereof - Google Patents
Polypropylene colorant and preparation method thereof Download PDFInfo
- Publication number
- CN102532699A CN102532699A CN2011103616933A CN201110361693A CN102532699A CN 102532699 A CN102532699 A CN 102532699A CN 2011103616933 A CN2011103616933 A CN 2011103616933A CN 201110361693 A CN201110361693 A CN 201110361693A CN 102532699 A CN102532699 A CN 102532699A
- Authority
- CN
- China
- Prior art keywords
- vestolen
- look
- female
- acrylic resin
- ppr
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion 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 extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to a polypropylene colorant and a preparation method thereof. The polypropylene colorant includes by weight 10 to 80 parts of polypropylene resin, 10 to 80 parts of titanium white and 1 to 40 parts of dispersing agent. The PPR colorant can remarkably improve heat resistance of a PPR pipe without affecting mechanical strength and using performance of the pipe. The PPR colorant is less in addition and capable of reducing pipe density, thereby reducing pipe using cost, being capable of remarkably improving pipe appearance quality and enabling a pipe surface to be smooth and fine in material. The polypropylene colorant and the preparation method are easy to operate and strong in practicability and provide new using ways for produced recycling materials of enterprises in the production process.
Description
Technical field
The present invention relates to a kind of Vestolen PP 7052 look mother and preparation method thereof, be specifically related to heat-resisting look mother of PPR tubing and preparation method thereof, belong to technical field of polymer materials.
Background technology
Along with people's is practiced thrift health environment-friendly consciousness and is improved constantly; Performance advantages such as PPR tubing is just high temperature resistant, corrosion-resistant, less scaling with it, green health environmental protection progressively replace traditional zinc-plated tubing; Be widely used in cold and hot water pipeline system in the buildings, comprise industry and civilian cold and hot water, tap water and heating system etc.But adopt the PPR tubing of PPR production of resins to have light transmission separately, in the use, under the light oxygen condition; PPR tubing easy ageing, and be easy to mikrobe such as breed bacteria in the pipeline, blocking pipe system when serious; Even cause the tubing system paralysis, can't use.Therefore, need add the look mother when producing PPR tubing, guarantee that tubing is light tight.
At present; The color white masterbatch that adds in the PPR tubing is many to be that carrier, white titanium pigment are tinting material with PE, EVA, APP; These carriers and PPR resin compatible are not good or resistance toheat is not good; Influence the dispersiveness of white titanium pigment in tubing and the resistance toheat of tubing, in detection, be presented as that tubing is damaged easily in 95 ℃ of hydrostatic tests.In addition, at present the dispersion agent in the PPR look female prescription also reckons without the high thermal resistance of dispersion agent itself, and to the influence of tubing resistance toheat.If adopt the white master material of present formula system to produce PPR tubing, tubing breaks when being easy to heat in the winter time with hot-water supply, and SF is on the low side, brings great financial loss and inconvenience to the user easily.Above-mentioned phenomenon is unfavorable for wideling popularize of this emerging health environment-friendly building materials of PPR tubing, also can become a kind of threat to basing oneself upon with long term growth of entire PP R pipeline industry.
Summary of the invention
To the deficiency of prior art, the invention provides a kind of Vestolen PP 7052 look mother and preparation method thereof.
The technical scheme that the present invention takes is:
A kind of Vestolen PP 7052 look female, and its weight part ratio consists of:
Acrylic resin 10-80 part
White titanium pigment 10-80 part
Dispersion agent 1-40 part.
Described Vestolen PP 7052 look female preferred weight part ratio consists of:
Acrylic resin 30-70 part
White titanium pigment 50-70 part
Dispersion agent 5-20 part.
Described acrylic resin is one or both in PPB resin, the PPR resin;
Described acrylic resin is acrylic resin or the Vestolen PP 7052 reclaimed materials compound with original Vestolen PP 7052 new raw material, and the reclaimed materials consumption is no more than compound total amount 10%; Described Vestolen PP 7052 reclaimed materials is the reclaimed materials that enterprise produces in own production process, does not use the reuse raw material in any other source; Described acrylic resin National standard GB/T18742.1-2002 requirement, and melt mass flow rate (MFR)≤0.5g/10min (230 ℃, 2.16kg);
Described white titanium pigment is one or both in Rutile type Titanium Dioxide, the anatase thpe white powder;
Said dispersion agent component is: one or more in EBS, PE wax, Zinic stearas, PP wax, the OPE wax.
The preparation method that above-mentioned Vestolen PP 7052 look female may further comprise the steps:
A) by prescription weighing each composition weight, with acrylic resin, white titanium pigment, dispersion agent in high speed mixer in 30-80 ℃, uniform mixing 5-10 minute, blowing was gone into dry feed bin;
B) compound in the dryness storehouse is extruded with the cocurrent and parallel twin screw extruder plasticizing that fuselage is provided with vacuum unit, vacuum tightness is-0.01 to-0.1MPa, and its barrel and mold heated temperature are 180-240 ℃;
C) cooling, pelletizing treat that Masterbatch cools off the back packing fully.
According to the regulation among standard GB/T18742.2-2002,, adopt the female tubing of producing of Vestolen PP 7052 look of the present invention to have following salient features advantage with existing Vestolen PP 7052 look parent phase ratio:
1. light transmission: the female addition of Vestolen PP 7052 look of the present invention is 2% o'clock, can realize opacifying property preferably, and existing common look female needs to add 4%-5%;
2. hydrostatic test: 95 ℃ of test temperatures, Vestolen PP 7052 look mother of the present invention can bear higher hydrostatic tension:
The female acrylic resin that adopts of Vestolen PP 7052 look of the present invention is made carrier, and density is low, and is compatible fully with the PPR pipe resin; The tinting material dispersing property is splendid, and adopts heat-resisting formula system, can make to adopt polypropylene pipe of the present invention to have higher resistance toheat; Can effectively avoid the use of the generation of booster phenomenon in the process; For enhancing product performance, establish image product, product promotion is used and the tremendous development of PPR tubing industry can both play positive pushing effect; Vestolen PP 7052 look mother of the present invention can adopt the Vestolen PP 7052 reclaimed materials, has opened up the new approach that utilizes for discarded Vestolen PP 7052 reclaimed materials, has played the effect of economical environment-protective; The female acrylic resin that adopts of Vestolen PP 7052 look of the present invention is done carrier, and this carrier is the lightest a kind of material in the thermoplastics commonly used, under the identical situation of tinting material addition, can play the reduction extrudate density, thereby reduces the economical effectiveness of PPR tubing cost; The female active constituent content of Vestolen PP 7052 look of the present invention high (50%-80%), addition is few, and the recommendation addition is 1%-2%, can obtain painted preferably shaded effect; The PPR tube surfaces that adopts Vestolen PP 7052 look mother of the present invention to produce is smooth, material is fine and smooth, and good hand touch, visual appearance obviously are superior to common PPR tubing.
Embodiment
Below in conjunction with embodiment the present invention is done further explanation:
Embodiment 1
A kind of Vestolen PP 7052 look female, and prescription is seen table 1;
The preparation method may further comprise the steps:
A) by prescription weighing each composition weight, with acrylic resin, white titanium pigment, dispersion agent in high speed mixer in 40 ℃, uniform mixing 10 minutes, blowing is gone into dry feed bin;
B) the cocurrent and parallel twin screw extruder plasticizing that the compound in the dryness storehouse is provided with vacuum unit with fuselage extrudes (is example with Ke Beilong board KBL-80) vacuum tightness and is-0.01～-0.05MPa, its barrel and mold heated temperature are 180-240 ℃;
The dual-screw pelletizer temperature is set:
Speed setting:
Engine speed: 10-90 rev/min, feeding rotating speed: 10-90 rev/min, cutting machine rotating speed 200-500r/min;
C) cooling, pelletizing treat that Masterbatch cools off the back packing fully.
Embodiment 2
Prescription is seen table 1,
The preparation method may further comprise the steps:
A) by prescription weighing each composition weight, with acrylic resin, white titanium pigment, dispersion agent in high speed mixer in 80 ℃, uniform mixing 5 minutes, blowing is gone into dry feed bin;
B) compound in the dryness storehouse to be extruded with the cocurrent and parallel twin screw extruder plasticizing that fuselage is provided with vacuum unit, vacuum tightness is-0.05～-0.1MPa, its barrel and mold heated temperature are 180-240 ℃;
The setting of dual-screw pelletizer temperature, speed setting are with embodiment 1;
C) cooling, pelletizing treat that Masterbatch cools off the back packing fully.
Embodiment 3
Prescription is seen table 1, and the preparation method is with embodiment 1.
Embodiment 4
Prescription is seen table 1, and the preparation method is with embodiment 1.
Embodiment 5
Prescription is seen table 1, and the preparation method is with embodiment 1.
Embodiment 6
Prescription is seen table 1, and the preparation method is with embodiment 1.
Table 1
Test result:
The female result who adds PPR tubing of the look that each embodiment obtains:
1. light transmission: addition is 2% (wt%);
Detection method: get the 400mm length section; One end is obturaged with light-proof material, had in the pipe side under the condition of natural light, grasp the tube wall of light source direction; From the detect by an unaided eye internal surface of sample of open end, it is qualified cannot see the shadow that hand blocks light source;
Detected result:
Table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Light transmission | Qualified | Qualified | Qualified | Qualified | Qualified |
2. hydrostatic test:
Table 3
Should be pointed out that at last embodiment is the more representational example of the present invention, obvious technical scheme of the present invention is not limited to the foregoing description, and a lot of distortion can also be arranged.Those skilled in the art all should think the claimed scope of patent of the present invention with disclosed mention or the technical scheme that it is associated among the present invention.
Claims (9)
1. a Vestolen PP 7052 look female, it is characterized in that weight part ratio consists of:
Acrylic resin 10-80 part,
White titanium pigment 10-80 part,
Dispersion agent 1-40 part.
2. Vestolen PP 7052 look according to claim 1 is female, it is characterized in that weight part ratio consists of:
Acrylic resin 30-70 part,
White titanium pigment 50-70 part,
Dispersion agent 5-20 part.
3. Vestolen PP 7052 look according to claim 1 and 2 is female, it is characterized in that described acrylic resin is one or both in PPB resin, the PPR resin.
4. Vestolen PP 7052 look according to claim 1 and 2 is female, it is characterized in that described acrylic resin is the compound of acrylic resin reclaimed materials with the Vestolen PP 7052 virgin material, and the reclaimed materials consumption is no more than 10% of compound total mass.
5. Vestolen PP 7052 look according to claim 1 and 2 is female, it is characterized in that described white titanium pigment is one or both in Rutile type Titanium Dioxide, the anatase thpe white powder.
6. Vestolen PP 7052 look according to claim 1 and 2 is female, it is characterized in that described dispersion agent is: one or more in EBS, PE wax, Zinic stearas, PP wax, the OPE wax.
7. claim 1 or 2 described Vestolen PP 7052 looks female preparation method is characterized in that, may further comprise the steps:
A) by prescription weighing each composition weight, with acrylic resin, white titanium pigment, dispersion agent in high speed mixer in 30-80 ℃, uniform mixing, blowing are gone into dry feed bin;
B) compound in the dry feed bin is extruded with cocurrent and parallel twin screw extruder plasticizing, in the forcing machine vacuum tightness be-0.01～-0.1MPa, its barrel and mold heated temperature are 180-240 ℃;
C) cooling, pelletizing treat that Masterbatch cools off the back packing fully.
8. the application of each described Vestolen PP 7052 look mother of claim 1-6 in preparation PPR tubing.
9. the application of Vestolen PP 7052 look mother according to claim 8 in preparation PPR tubing, the quality addition of Vestolen PP 7052 look mother in tubing is 1%-2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103616933A CN102532699A (en) | 2011-11-15 | 2011-11-15 | Polypropylene colorant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103616933A CN102532699A (en) | 2011-11-15 | 2011-11-15 | Polypropylene colorant and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102532699A true CN102532699A (en) | 2012-07-04 |
Family
ID=46340815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103616933A Pending CN102532699A (en) | 2011-11-15 | 2011-11-15 | Polypropylene colorant and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102532699A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785300A (en) * | 2012-07-12 | 2012-11-21 | 浙江华昊化纤塑业有限公司 | Production method of color master batches for non-woven fabrics |
| CN102850658A (en) * | 2012-10-18 | 2013-01-02 | 重庆澳彩科鼎塑染色母有限责任公司 | Novel high-efficiency PPR (pentatricopeptide repeat) pipe cold-resistant toughening color master batch |
| CN103739955A (en) * | 2013-12-30 | 2014-04-23 | 重庆普利特新材料有限公司 | Faint-smell high-dispersion color master batch and preparation method thereof |
| CN105400076A (en) * | 2015-12-21 | 2016-03-16 | 慈溪康氏新材料有限公司 | Polypropylene color master batch, and preparation method thereof |
| CN106566083A (en) * | 2016-11-03 | 2017-04-19 | 苏州圣鑫莱新材料有限公司 | Nano PP color masterbatch |
| CN109627611A (en) * | 2018-12-24 | 2019-04-16 | 武汉金牛经济发展有限公司 | The low precipitation Masterbatch of PPR pipe high dispersive and preparation method based on polybutene |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1347931A (en) * | 2001-11-16 | 2002-05-08 | 大连联广色母粒有限公司 | Plastic coloring tangerine mother particle |
| CN1373038A (en) * | 2002-03-25 | 2002-10-09 | 重庆顾地塑胶电器有限公司 | Process for preparing antibacterial atactic copolypropene pipe |
| CN1844221A (en) * | 2006-04-11 | 2006-10-11 | 山西新阳新材料有限公司 | Functional white color masterbatch and its preparation process and use |
| CN101392082A (en) * | 2008-10-28 | 2009-03-25 | 宁波色母粒有限公司 | Polypropylene jade green-like color master batch and preparation method thereof |
| CN101392077A (en) * | 2008-10-28 | 2009-03-25 | 宁波色母粒有限公司 | Polypropylene color master-batch with pearlescent interference effect and preparation method thereof |
| CN102181094A (en) * | 2011-04-26 | 2011-09-14 | 中山市铁鹰塑胶有限公司 | Antistatic and anti-aging white masterbatch for polypropylene (PP) resin and preparation method thereof |
| CN102329450A (en) * | 2011-06-20 | 2012-01-25 | 洪伟 | Polypropylene color masterbatch and preparation method thereof |
-
2011
- 2011-11-15 CN CN2011103616933A patent/CN102532699A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1347931A (en) * | 2001-11-16 | 2002-05-08 | 大连联广色母粒有限公司 | Plastic coloring tangerine mother particle |
| CN1373038A (en) * | 2002-03-25 | 2002-10-09 | 重庆顾地塑胶电器有限公司 | Process for preparing antibacterial atactic copolypropene pipe |
| CN1844221A (en) * | 2006-04-11 | 2006-10-11 | 山西新阳新材料有限公司 | Functional white color masterbatch and its preparation process and use |
| CN101392082A (en) * | 2008-10-28 | 2009-03-25 | 宁波色母粒有限公司 | Polypropylene jade green-like color master batch and preparation method thereof |
| CN101392077A (en) * | 2008-10-28 | 2009-03-25 | 宁波色母粒有限公司 | Polypropylene color master-batch with pearlescent interference effect and preparation method thereof |
| CN102181094A (en) * | 2011-04-26 | 2011-09-14 | 中山市铁鹰塑胶有限公司 | Antistatic and anti-aging white masterbatch for polypropylene (PP) resin and preparation method thereof |
| CN102329450A (en) * | 2011-06-20 | 2012-01-25 | 洪伟 | Polypropylene color masterbatch and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785300A (en) * | 2012-07-12 | 2012-11-21 | 浙江华昊化纤塑业有限公司 | Production method of color master batches for non-woven fabrics |
| CN102850658A (en) * | 2012-10-18 | 2013-01-02 | 重庆澳彩科鼎塑染色母有限责任公司 | Novel high-efficiency PPR (pentatricopeptide repeat) pipe cold-resistant toughening color master batch |
| CN103739955A (en) * | 2013-12-30 | 2014-04-23 | 重庆普利特新材料有限公司 | Faint-smell high-dispersion color master batch and preparation method thereof |
| CN103739955B (en) * | 2013-12-30 | 2016-08-24 | 重庆普利特新材料有限公司 | A kind of low abnormal smells from the patient, the Masterbatch and preparation method thereof of high dispersive |
| CN105400076A (en) * | 2015-12-21 | 2016-03-16 | 慈溪康氏新材料有限公司 | Polypropylene color master batch, and preparation method thereof |
| CN106566083A (en) * | 2016-11-03 | 2017-04-19 | 苏州圣鑫莱新材料有限公司 | Nano PP color masterbatch |
| CN109627611A (en) * | 2018-12-24 | 2019-04-16 | 武汉金牛经济发展有限公司 | The low precipitation Masterbatch of PPR pipe high dispersive and preparation method based on polybutene |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102532699A (en) | Polypropylene colorant and preparation method thereof | |
| CN103709485B (en) | A kind of polyethylene anticorrosion pipeline modification regeneration PP Pipe Compound and preparation method thereof | |
| CN101805472B (en) | Regeneration high-density polyethylene (HDPE) particle used for tubings and manufacture method thereof | |
| CN101964234B (en) | Flexible plastic magnetic diaphragm material with regenerated plastics | |
| CN102485788B (en) | Crops waste material regenerated composite plastic plate and its production process | |
| CN102219966A (en) | Double-wall corrugated pipe produced by utilizing waste and old hard polyvinyl chloride (PVC) material and manufacturing method thereof | |
| CN103450530A (en) | Nanoparticle composite material | |
| CN103804940A (en) | Atmospheric pressure cold plasma modifying method for plant fiber and application of modifying method in wood-plastic composite material | |
| CN103252952B (en) | The special-shaped sheet material that after the mixing of wheat straw fiber, flyash, filled thermoplastic makes and preparation method | |
| CN104312112A (en) | Polyester polyethylene alloy plastic pipe and preparation method thereof | |
| CN103435982A (en) | High-heat-insulation, ultraviolet-isolation and transparent colored master batch and preparation method thereof | |
| CN104530609A (en) | White and totally-opaque monolayer polymer film and preparation method thereof | |
| CN111442140A (en) | Nano-antibacterial PE water supply pipeline and manufacturing process thereof | |
| CN103642258B (en) | A kind of wood is moulded composite fire-proof sheet material | |
| CN103707482B (en) | Possesses high-strength and high oxygen polyolefin pipe and preparation method thereof simultaneously | |
| CN102788198B (en) | Multifunctional PP-R pipe and preparation method thereof | |
| CN103978660A (en) | Single-screw extrusion cavity with good mixing effect | |
| CN107325369A (en) | A kind of enhanced polyethylene composite pipe and preparation method thereof | |
| CN203665900U (en) | Anti-aging PE (Polyethylene) soft belt production system | |
| CN204183862U (en) | A kind of Twin screw extruder | |
| CN104130495A (en) | Water removal master batch for plastic drip irrigation pipe or drip irrigation zone and preparation method of water removal master batch | |
| CN104725700A (en) | Impact-resistant and heat-resistant modified plastic and production method thereof | |
| CN102863692A (en) | Modified regenerated polypropylene (PP) for pipes and pipe fittings and preparation method thereof | |
| CN102372891B (en) | Special acrylonitile-styrene-acrylate color masterbatch | |
| CN204566447U (en) | The regeneration and granulation process unit of EVA dead meal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120704 |