CN103183955A - Novel foaming thermoplastic polyurethane elastomer material sole and preparation method thereof - Google Patents
Novel foaming thermoplastic polyurethane elastomer material sole and preparation method thereof Download PDFInfo
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- CN103183955A CN103183955A CN2011104465165A CN201110446516A CN103183955A CN 103183955 A CN103183955 A CN 103183955A CN 2011104465165 A CN2011104465165 A CN 2011104465165A CN 201110446516 A CN201110446516 A CN 201110446516A CN 103183955 A CN103183955 A CN 103183955A
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- novel
- sole
- tpu material
- thermoplastic polyurethane
- polyurethane elastomer
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- 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
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- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a preparation method of a novel foaming thermoplastic polyurethane elastomer material (novel F-TPU material) sole. The preparation method comprises the steps of: heating and extruding novel F-TPU material granules by a single-screw extruder, melting the novel F-TPU material granules and extruding novel F-TPU material melt, injecting the novel F-TPU material melt into a sole mold, and cooling and curing for molding. The invention also discloses a novel F-TPU material sole. According to the novel F-TPU material sole and the preparation method thereof, the novel F-TPU material sole is high in strength, good in elasticity, light in weight, wearable, comfortable and anti-slip, has a cushioning effect for ground impact, can be made into soles of multiple colors and multiple hardness, is integrally molded in sole midsole and outsole, and has the advantages of no pollution, low cost and simple process.
Description
Technical field
The present invention relates to the organic polymer chemical technology field, relate in particular to a kind of novel foamed thermoplastic polyurethane elastomer material (novel F-TPU material) sole and preparation method thereof.
Background technology
As everyone knows, the conventional footwear material uses rubber to do sole mostly, and about 40%, low-grade footwear gel content is lower at most for its gel content, because the existence of a large amount of stopping composition makes that the intensity of rubber soles is low, use properties is poor.EVA foaming (one step foaming) and PHYION foaming (second time of foaming) are adopted in the end in the sole.Wherein the end, be to use often among the PHYION, have light, good springiness and have good damping performance, but the wear resisting property at the end is poor among the PHYION.And among the EVA among the end and the PHYION end similar, just through one step foaming, cost is lower, but elasticity and wear resisting property are all poor than the end among the PHYION simultaneously.Have following shortcoming when making EVA microporous foam material for shoes: adopt different hot melt adhesive bonding agent next bonding EVA or other materials sole, various different hot melt adhesive products all have certain toxicity in varying degrees, and part work must be by manually finishing.This causes one to be that the toxicity of sizing agent can produce very big influence to the personnel health, also directly increase cost on the other hand.Can not foam at 1: 1 during foaming, cause the size of sole and the not of uniform size of die for shoe-sole to cause; Used raw materials consumption amount height during foaming, the raw materials cost height, foaming proportion is generally between 0.5～0.8.
At present, thermoplastic polyurethane material (TPU), is widely used therefore in a lot of industries because having plurality of advantages such as high abrasion, snappiness, antifatigue, chemical resistant properties, and wherein sole market is particularly considerable.But when current material adopts the multigraph press injection technique, can not once shaped.The TPU sole also has some shortcomings, and is big such as weight, the hardness height, therefore how aspects such as damping performance difference improve the shortcoming of TPU sole, allow the numerous advantages of TPU sole collection with all over the body, just become a main research class of current TPU sole industry.
Summary of the invention
At the weak point that exists in the above-mentioned technology, the embodiment of the invention provides novel F-TPU material preparation method of shoe pads, comprises the steps:
Novel F-TPU material granule is heated and push with single screw extrusion machine, melt novel F-TPU material granule and extrude novel F-TPU material melt;
Novel F-TPU material melt is injected die for shoe-sole;
The cooling curing moulding.
According to one preferred embodiment of the present invention, single screw extrusion machine comprises feed zone, compression section and homogenizing zone, and the feed zone temperature is controlled at 140～145 ℃.
According to one preferred embodiment of the present invention, temperature control in compression section is at 150～160 ℃.
According to one preferred embodiment of the present invention, the control of homogenizing zone temperature is at 145～150 ℃.
According to one preferred embodiment of the present invention, when novel F-TPU material melt injected die for shoe-sole, injection pressure was 90～140bar, and injection speed is 75mm/s, and the injecting glue time is 1.7～2.0s.
According to one preferred embodiment of the present invention, when novel F-TPU material melt injected die for shoe-sole, be 3～5min inject time.
According to one preferred embodiment of the present invention, during the cooling curing moulding, be 60～80s cooling time.
According to one preferred embodiment of the present invention, during die for shoe-sole comprises in bottom die and the outsole molds bottom die and outsole molds one-body molded.
According to one preferred embodiment of the present invention, during the cooling curing moulding, the middle end and outer bottom are one-body molded.
The embodiment of the invention also provides novel F-TPU material sole, the end and outer bottom during novel F-TPU material sole comprises, and the middle end and outer bottom are one-body molded.
In novel F-TPU material sole of the present invention and preparation method thereof, adopt the method for disk injection, can arrive mold closing foaming in 1: 1, once shaped, free bonding, waste material can reuse, have pollution-free, cost is low and advantage of simple technology.
Description of drawings
Fig. 1 is the schema of novel F-TPU material preparation method first embodiment of the present invention;
Fig. 2 is the schema of novel F-TPU material preparation method second embodiment of the present invention;
Fig. 3 is the process flow sheet of novel F-TPU material preparation method second embodiment of the present invention;
Fig. 4 is the schema of the novel F-TPU material of the present invention preparation method of shoe pads one preferred embodiment.
Embodiment
See also Fig. 1, Fig. 1 is the schema of novel F-TPU material preparation method first embodiment of the present invention.Novel F-TPU material preparation method may further comprise the steps:
Step S21, the feed end that the A component is introduced first single screw extrusion machine by test tank respectively carries out the prepolymerization reaction, and the A component comprises polyester polyol, linking agent and isocyanic ester;
Step S22, add the B component and introduce the feed end of second screw extrusion press with reacted A component at the discharge end of first single screw extrusion machine, wherein the B component comprises: catalyzer, frothing aid, water, tensio-active agent, triisocyanate, help sulphur agent and whipping agent;
Step S23, A component and B component polyreaction under the extruding of second screw extrusion press, fully extrude from the discharge end of the second spiral shell screw extrusion press reaction back.
See also Fig. 2 and Fig. 3, Fig. 2 is the schema of novel F-TPU material preparation method second embodiment of the present invention, and Fig. 3 is the process flow sheet of novel F-TPU material preparation method second embodiment of the present invention.Particularly, the A component is introduced the feed end 101 of first single screw extrusion machine 10 and carried out the prepolymerization reaction at first single screw extrusion machine 10 by header tank 4 and test tank 7 from changing batch can 1 respectively, the control of first single screw extrusion machine, 10 temperature of reaction is introduced reacted A component the feed end 131 of second screw extrusion press 13 in the time of 90 ℃～110 ℃.The A component comprises polyester polyol, linking agent and isocyanic ester, and polyester polyol to account for the A components by weight be 50%～70%, it is 6%～9% that linking agent accounts for the A components by weight, it is 18%～50% that isocyanic ester accounts for the A components by weight.It is 65% that polyester polyol accounts for A component optimum weight ratio, and it is 8% that linking agent accounts for A component optimum weight ratio, and it is 27% that isocyanic ester accounts for A component optimum weight ratio.
Discharge end 103 at first single screw extrusion machine 10 is metered into the B component by powder feeding machine 11 by weight-loss type powder metering device 12, temperature of reaction control is at 100 ℃ when adding the B component, and B component and A component together enter 13 feed ends 131 of second single screw extrusion machine then.Wherein the B component comprises: catalyzer, frothing aid, water, tensio-active agent, triisocyanate, help sulphur agent and whipping agent.Catalyzer and A components by weight are 1 ‰～3 ‰, frothing aid and A components by weight are 4 ‰～5 ‰, water and A components by weight are 0.9 ‰～2 ‰, tensio-active agent and A components by weight are 1 ‰～10 ‰, triisocyanate and A components by weight are 1 ‰～4 ‰, helping sulphur agent and A components by weight is 1 ‰～3 ‰, and whipping agent and A components by weight are 2%～4%.Catalyzer and A component optimum weight ratio are 1.5 ‰, frothing aid and A component optimum weight ratio are 4 ‰, water and A component optimum weight ratio are 1 ‰, tensio-active agent and A component optimum weight ratio are 3 ‰, triisocyanate and A component optimum weight ratio are 3 ‰, helping sulphur agent and A component optimum weight ratio is 1.5 ‰, and whipping agent and A component optimum weight ratio are 3%.
Except said components, the B component also comprises interior lubrication prescription, outer lubrication prescription and tinting material, and interior lubrication prescription and A components by weight are 1 ‰～3 ‰, and outer lubrication prescription and A components by weight are 2 ‰～3 ‰, and tinting material and A components by weight are 1 ‰～10 ‰.Interior lubrication prescription and A component optimum weight ratio are 1.5 ‰, and outer lubrication prescription and A component optimum weight ratio are 2.1 ‰.
Wherein, enter A component and B component polyreaction under 13 extruding of second single screw extrusion machine of 13 feed ends 131 of second single screw extrusion machine, fully extrude from the discharge end 133 of second single screw extrusion machine 13 the reaction back.The novel F-TPU material that to extrude then enters underwater pelletizer 14, and the temperature of cutting control under water is at 25 ℃～30 ℃.Cutting is finished, and utilizes water separator 15 to carry out separating of water and novel F-TPU material granule again, and the novel F-TPU material granule that obtains enters air dryer 15 air-dry last introducing material-storage jars 17.
When the discharge end 101 of first single screw extrusion machine 10 adds the B component, also can add the C component simultaneously, after C component and B component are fully mixed by powder feeding machine 11, enter the discharge end 103 of first single screw extrusion machine 10.The C component comprises toughner, softening agent and toughener, and toughner and A components by weight are 3%～8%, and softening agent and A components by weight are 1%～10%, and toughener and A components by weight are 1%～10%.Toughner and A component optimum weight ratio are 4%, and softening agent and A component optimum weight ratio are 7%, and toughener and A component optimum weight ratio are 3%～5%.
In the present embodiment, the isocyanic ester main component is diphenylmethanediisocyanate, whipping agent is Cellmic C 121 or sodium bicarbonate, linking agent is 1,4 butyleneglycols or hexylene glycol or 4-hydroxyethyl oxygen ethyl-1-hydroxyethylbenzene diether, catalyzer is metal species: stannous octoate or dibutyltin dilaurate or mercuric acetate, or be non-metal kind: three own tin diamino or dimethylethanolamines, interior lubrication prescription is amine hydroxybenzene, helping the sulphur agent is Lin Suanergai, outer lubrication prescription is ethylenebisstearamide, and tinting material is toner or look mother.
See also Fig. 4, Fig. 4 is the schema of the novel F-TPU material of the present invention preparation method of shoe pads one preferred embodiment.Novel F-TPU material preparation method of shoe pads may further comprise the steps:
Step S31 heats novel F-TPU material granule and pushes with single screw extrusion machine, melts novel F-TPU material granule and extrudes novel F-TPU material melt;
Step S32 injects die for shoe-sole with novel F-TPU material melt;
Step S33, the cooling curing moulding.
Particularly, single screw extrusion machine comprises feed zone, compression section and homogenizing zone, novel F-TPU material granule is heated and when pushing with single screw extrusion machine, novel F-TPU material granule at first is introduced into the feed zone of single screw extrusion machine and successively enters compression section and homogenizing zone, wherein the control of feed zone temperature is at 140～145 ℃, compression section temperature control is at 150～160 ℃, and the homogenizing zone temperature is controlled at 145～150 ℃.
After single screw extrusion machine fully melts novel F-TPU material granule, extrude novel F-TPU material melt and inject die for shoe-sole, wherein, and bottom die and outsole molds during die for shoe-sole comprises, middle bottom die and outsole molds are one-body molded.
When the novel F-TPU material melt of extruding from single screw extrusion machine injected die for shoe-sole, injection pressure was controlled to be 90～140bar, and injection speed is controlled to be 75mm/s, and the injecting glue time is controlled to be 1.7～2.0s, is controlled to be 3～5min inject time.
Novel F-TPU material melt enters the air that die for shoe-sole runs into the die for shoe-sole die cavity instantaneous expansion is become big, is full of the die cavity of whole die for shoe-sole and in the moulding of die cavity cooling curing.During the cooling curing moulding, the middle end and outer bottom are one-body molded, and be 60～80s cooling time.The sole of moulding reaches 1: 1 foaming ratio, and namely the size of sole and die for shoe-sole die cavity is big or small consistent.
The embodiment of the invention also provides novel F-TPU material sole, the end and outer bottom during novel F-TPU material sole comprises, and the middle end and outer bottom are one-body molded.
The equal toxicological harmless of all raw materials that novel F-TPU material sole of the present invention and preparation method thereof is selected, production process does not produce toxic gas and toxic liquid.Do not need to be stained with and connect agent, the middle end and outer bottom once shaped can reduce a large amount of manual works.Waste can use repeatedly, and raw material availability reaches 100%, very environmental protection, and foaming degree height, and blowing ratio focuses between 0.3～0.5, has reduced raw materials cost.
In the embodiment of the invention, can adopt novel F-TPU material to carry out one-shot forming production technology, drawback and the shortcoming of material toxicity in original production technique and manual production have not only been avoided, novel F-TPU material sole product among the present invention simultaneously not only has the various advantages of traditional TPU material, also has sole intensity height simultaneously, good springiness, light weight, wear-resisting, comfortable, anti-skidding, impact to ground has shock absorption, can be made into multiple color, advantages such as many hardness sole will be opened up the use road of a type material and novel production process for Chinese sole industry.
In sum, novel F-TPU material sole of the present invention and preparation method thereof, have pollution-free, cost is low and technology is simple, the advantage of excellent property.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification sheets of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. a novel foamed thermoplastic polyurethane elastomer material preparation method of shoe pads is characterized in that, comprises the steps:
Novel F-TPU material granule is heated and push with single screw extrusion machine, melt novel F-TPU material granule and extrude novel F-TPU material melt;
Novel F-TPU material melt is injected die for shoe-sole;
The cooling curing moulding.
2. novel foamed thermoplastic polyurethane elastomer material preparation method of shoe pads according to claim 1 is characterized in that single screw extrusion machine comprises feed zone, compression section and homogenizing zone, and the feed zone temperature is controlled at 140～145 ℃.
3. novel foamed thermoplastic polyurethane elastomer material preparation method of shoe pads according to claim 2 is characterized in that, the compression section temperature is controlled at 150～160 ℃.
4. novel foamed thermoplastic polyurethane elastomer material preparation method of shoe pads according to claim 2 is characterized in that, the homogenizing zone temperature is controlled at 145～150 ℃.
5. novel foamed thermoplastic polyurethane elastomer material preparation method of shoe pads according to claim 1, it is characterized in that when novel F-TPU material melt injected die for shoe-sole, injection pressure was 90～140bar, injection speed is 75mm/s, and the injecting glue time is 1.7～2.0s.
6. novel foamed thermoplastic polyurethane elastomer material preparation method of shoe pads according to claim 1 is characterized in that, when novel F-TPU material melt injected die for shoe-sole, be 3～5min inject time.
7. novel foamed thermoplastic polyurethane elastomer material preparation method of shoe pads according to claim 1 is characterized in that, during the cooling curing moulding, be 60～80s cooling time.
8. novel foamed thermoplastic polyurethane elastomer material preparation method of shoe pads according to claim 1 is characterized in that, bottom die and outsole molds during described die for shoe-sole comprises, and described middle bottom die and described outsole molds are one-body molded.
9. novel foamed thermoplastic polyurethane elastomer material preparation method of shoe pads according to claim 8 is characterized in that during the cooling curing moulding, the middle end and outer bottom are one-body molded.
10. a novel foamed thermoplastic polyurethane elastomer material sole is characterized in that, the end and outer bottom during described novel F-TPU material sole comprises, and the described middle end and described outer bottom are one-body molded.
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| CN201110446516.5A CN103183955B (en) | 2011-12-28 | 2011-12-28 | A kind of foamed thermoplastic polyurethane elastomer material sole and preparation method thereof |
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| CN201110446516.5A CN103183955B (en) | 2011-12-28 | 2011-12-28 | A kind of foamed thermoplastic polyurethane elastomer material sole and preparation method thereof |
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| CN103183955B CN103183955B (en) | 2015-08-19 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441409A (en) * | 2014-11-04 | 2015-03-25 | 林仔孺 | Production process of foamed TPU (Thermoplastic polyurethane) sole |
| CN104626454A (en) * | 2014-12-24 | 2015-05-20 | 东莞智标鞋业科技有限公司 | Preparation method and product of double-density-layer middle sole |
| CN104774433A (en) * | 2015-04-14 | 2015-07-15 | 江苏绿艳高分子材料有限公司 | TUP large sole and preparation method thereof |
| CN104799477A (en) * | 2014-01-24 | 2015-07-29 | 三晃股份有限公司 | Integrally-formed shoe material and manufacturing method thereof |
| WO2015123961A1 (en) * | 2014-02-18 | 2015-08-27 | 山东美瑞新材料有限公司 | Extruded foamed thermoplastic polyurethane elastomer particle and preparation method therefor |
| CN105829417A (en) * | 2013-10-11 | 2016-08-03 | 巴斯夫欧洲公司 | Method for producing expanded thermoplastic elastomer particles |
| CN106349681A (en) * | 2016-08-22 | 2017-01-25 | 刘真言 | Hot-melt adhesive shoe lining and preparation method thereof |
| CN106380824A (en) * | 2016-09-05 | 2017-02-08 | 万家鑫（福建）皮塑鞋材有限公司 | ETPU luminous shoe material and preparation process thereof |
| CN108095245A (en) * | 2017-12-15 | 2018-06-01 | 清远市广硕鞋业有限公司 | Wear-resisting anti-slip sole structure |
| CN109262935A (en) * | 2018-09-12 | 2019-01-25 | 广东昂斯新材料技术有限公司 | It is a kind of for manufacturing the frothing injection system of thermoplastic polyurethane sole, shoes |
| CN105829417B (en) * | 2013-10-11 | 2019-07-16 | 巴斯夫欧洲公司 | The preparation method of expanded thermoplastic elastomer bead |
| CN112638192A (en) * | 2018-09-03 | 2021-04-09 | 帝斯曼知识产权资产管理有限公司 | Shoe comprising a sole of thermoplastic material and method for manufacturing such a shoe |
| US11020922B2 (en) | 2018-07-27 | 2021-06-01 | Adidas Ag | Footwear with padding and midsole structures and the method of making the same |
| CN113068898A (en) * | 2020-01-06 | 2021-07-06 | 广东昂斯新材料技术有限公司 | Thermoplastic polyurethane foamed sole with injection stripe lines and preparation process thereof |
| WO2022000723A1 (en) * | 2020-07-01 | 2022-01-06 | 宏威运动用品制造(张家口)有限公司 | Plastic shoe shell and forming process and using method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105829417A (en) * | 2013-10-11 | 2016-08-03 | 巴斯夫欧洲公司 | Method for producing expanded thermoplastic elastomer particles |
| US10392488B2 (en) | 2013-10-11 | 2019-08-27 | Basf Se | Method for producing expanded thermoplastic elastomer particles |
| CN105829417B (en) * | 2013-10-11 | 2019-07-16 | 巴斯夫欧洲公司 | The preparation method of expanded thermoplastic elastomer bead |
| CN104799477A (en) * | 2014-01-24 | 2015-07-29 | 三晃股份有限公司 | Integrally-formed shoe material and manufacturing method thereof |
| WO2015123961A1 (en) * | 2014-02-18 | 2015-08-27 | 山东美瑞新材料有限公司 | Extruded foamed thermoplastic polyurethane elastomer particle and preparation method therefor |
| US10137601B2 (en) | 2014-02-18 | 2018-11-27 | Miracll Chemicals Co., Ltd. | Extruded expanded thermoplastic polyurethane elastomer bead and preparation method therefor |
| CN104441409A (en) * | 2014-11-04 | 2015-03-25 | 林仔孺 | Production process of foamed TPU (Thermoplastic polyurethane) sole |
| CN104626454A (en) * | 2014-12-24 | 2015-05-20 | 东莞智标鞋业科技有限公司 | Preparation method and product of double-density-layer middle sole |
| CN104774433A (en) * | 2015-04-14 | 2015-07-15 | 江苏绿艳高分子材料有限公司 | TUP large sole and preparation method thereof |
| CN106349681A (en) * | 2016-08-22 | 2017-01-25 | 刘真言 | Hot-melt adhesive shoe lining and preparation method thereof |
| CN106380824A (en) * | 2016-09-05 | 2017-02-08 | 万家鑫（福建）皮塑鞋材有限公司 | ETPU luminous shoe material and preparation process thereof |
| CN108095245A (en) * | 2017-12-15 | 2018-06-01 | 清远市广硕鞋业有限公司 | Wear-resisting anti-slip sole structure |
| US11020922B2 (en) | 2018-07-27 | 2021-06-01 | Adidas Ag | Footwear with padding and midsole structures and the method of making the same |
| CN112638192A (en) * | 2018-09-03 | 2021-04-09 | 帝斯曼知识产权资产管理有限公司 | Shoe comprising a sole of thermoplastic material and method for manufacturing such a shoe |
| CN109262935A (en) * | 2018-09-12 | 2019-01-25 | 广东昂斯新材料技术有限公司 | It is a kind of for manufacturing the frothing injection system of thermoplastic polyurethane sole, shoes |
| CN109262935B (en) * | 2018-09-12 | 2021-07-20 | 广东昂斯新材料技术有限公司 | Foaming injection molding system for manufacturing thermoplastic polyurethane soles and shoes |
| CN113068898A (en) * | 2020-01-06 | 2021-07-06 | 广东昂斯新材料技术有限公司 | Thermoplastic polyurethane foamed sole with injection stripe lines and preparation process thereof |
| WO2021138968A1 (en) * | 2020-01-06 | 2021-07-15 | 广东昂斯新材料技术有限公司 | Thermoplastic polyurethane foam sole having injected textures and preparation process therefor |
| WO2022000723A1 (en) * | 2020-07-01 | 2022-01-06 | 宏威运动用品制造(张家口)有限公司 | Plastic shoe shell and forming process and using method therefor |
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| CN103183955B (en) | 2015-08-19 |
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