CN1076274C - Method for manufacturing internal cavity of bowl washer - Google Patents
Method for manufacturing internal cavity of bowl washer Download PDFInfo
- Publication number
- CN1076274C CN1076274C CN98110888A CN98110888A CN1076274C CN 1076274 C CN1076274 C CN 1076274C CN 98110888 A CN98110888 A CN 98110888A CN 98110888 A CN98110888 A CN 98110888A CN 1076274 C CN1076274 C CN 1076274C
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- Prior art keywords
- internal cavity
- thermoplastic resin
- bowl washer
- weight
- auxiliary material
- 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.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 22
- -1 polypropylene Polymers 0.000 claims abstract description 19
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 18
- 239000004743 Polypropylene Substances 0.000 claims abstract description 13
- 229920001155 polypropylene Polymers 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 239000011342 resin composition Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 12
- 239000004615 ingredient Substances 0.000 claims description 11
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000007822 coupling agent Substances 0.000 claims description 8
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- 239000011256 inorganic filler Substances 0.000 claims description 7
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical group CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 4
- 239000003508 Dilauryl thiodipropionate Substances 0.000 claims description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 4
- 239000012965 benzophenone Substances 0.000 claims description 4
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 4
- 239000003607 modifier Substances 0.000 claims description 4
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 3
- 235000013539 calcium stearate Nutrition 0.000 claims description 3
- 239000008116 calcium stearate Substances 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 claims description 2
- 229920002292 Nylon 6 Polymers 0.000 abstract description 6
- SYJPAKDNFZLSMV-HYXAFXHYSA-N (Z)-2-methylpropanal oxime Chemical compound CC(C)\C=N/O SYJPAKDNFZLSMV-HYXAFXHYSA-N 0.000 abstract 1
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 229920000426 Microplastic Polymers 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 230000036314 physical performance Effects 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- DJOWTWWHMWQATC-KYHIUUMWSA-N Karpoxanthin Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1(O)C(C)(C)CC(O)CC1(C)O)C=CC=C(/C)C=CC2=C(C)CC(O)CC2(C)C DJOWTWWHMWQATC-KYHIUUMWSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OKHIGGWUISQLMG-UHFFFAOYSA-N 3-diethoxysilylpropan-1-amine Chemical group CCO[SiH](OCC)CCCN OKHIGGWUISQLMG-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- VCAFTIGPOYBOIC-UHFFFAOYSA-N phenyl dihydrogen phosphite Chemical class OP(O)OC1=CC=CC=C1 VCAFTIGPOYBOIC-UHFFFAOYSA-N 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a method for manufacturing internal cavities of bowl washers. A modified thermoplastic resin composition is adopted as main material; thermoplastic resin such as polypropylene or nylon 6 or valox is adopted as base material in a recipe of raw material; organic fillings, modified agent, antioxidizer, light stabilization agent and other auxiliary agents are added; manufacturing material is together mixed and extruded out of the composition through an extruder; the manufacturing material is poured into a mould of an internal cavity of a bowl washer under certain molding technics through an injection molding machine; finally, the internal cavity of the bowl washer, which has high performance, is manufactured.
Description
The present invention relates to the method for manufacturing technology of the manufacture method of internal cavity of bowl washer, particularly a kind of plastic products, belong to plastic products processing and manufacturing field.
All there is obvious weak point in the manufacturing of internal cavity of bowl washer in the past from material and forming method.The past internal cavity of bowl washer is made of stainless steel material, goods production cost height not only then, and also production efficiency is low, and not really desirable.Internal cavity of bowl washer was also once made material with unsaturated polyester (UP) in the past, but its forming method adopts compression molding, and the major defect of this method is that production efficiency is low, and its waste product can't be recycled in addition, is unfavorable for the regeneration and the environmental protection of resource.Also once used ABS resin injection mo(u)lding internal cavity of bowl washer, though this method overcomes above-mentioned shortcoming, its shortcoming is that the operating temperature of goods can not surpass 65 ℃, and hear resistance is relatively poor, and easily aging, and service life is not long.
The purpose of this invention is to provide a kind of method of making internal cavity of bowl washer, enable to eliminate the various shortcomings that above-mentioned conventional method is brought, thereby enhance productivity, improve product properties, improve the quality of products.
The present invention achieves the above object by following technological means: a kind of manufacture method of internal cavity of bowl washer, its processing step is as follows: at first the thermoplastic resin composition is passed through double screw extruder blend extruding pelletization down at 200～250 ℃, obtain the modified plastics particle, descend drying after 4～8 hours at 90～110 ℃ on this modified plastics particle then, by injection machine under 210～250 ℃ of temperature, 60～100MPa pressure condition, be injected in the designed internal cavity of bowl washer mould, obtain the internal cavity of bowl washer product of moulding after 1～4 minute to be cooled; It is characterized in that, described thermoplastic resin composition's prescription (percetage by weight) comprising: thermoplastic resin 60～76%, modifier 7～10%, the steady agent 0～0.5% of inorganic filler 17～30%, antioxidant 0.05～0.7%, light of crossing through coupling agent treatment, wherein, described first three kind component is called major ingredient, the two kinds of components in back are auxiliary material, in process for preparation, at first prepare major ingredient 100 weight portions, and then the adding auxiliary material, the addition of described auxiliary material is to be the percetages by weight of 100 weight portions as radix with the major ingredient amount; Wherein said thermoplastic resin is selected from polypropylene, a kind of in the polybutylene terephthalate (PBT), described inorganic filler is selected from mica powder, a kind of in the kaolin, its particle diameter is 600～1200 orders, described coupling agent is selected from gamma-aminopropyl-triethoxy-silane, its concentration is 1.5% weight, described modifier is selected from polypropylene grafted maleic anhydride or ABS, and described antioxidant is selected from four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid] pentaerythritol ester and dilauryl thiodipropionate, perhaps 1,2,5-three (the 4-tert-butyl group-3-hydroxyl-2,6-xylyl benzyl) 1,3,5-triazine-2,4,6-(1H, 3H, 5H) triketone and 2,4-dibutyl phenyl phosphites, the steady agent of described light is selected from second-hydroxyl-4-oxy-octyl benzophenone.
Described thermoplastic resin composition's prescription (percetage by weight) also comprises auxiliary material calcium stearate 0.1～0.5%.
The prepared internal cavity of bowl washer of the inventive method has more advantage and effect, not only can improve the production efficiency of goods, and can improve intensity, rigidity, the hear resistance of goods; The long-term serviceability temperature of goods can reach more than 100 ℃, and the dimensional stability of goods also improves, and also improves in environmental protection and waste product recoverying and utilizing method.Also can reduce production costs in addition.
By the following examples the present invention further is illustrated.
Embodiment one
The thermoplastic resin base-material that adopts is polypropylene (PP); The particle diameter of the inorganic filler of selecting is the 600-1200 order; And with suitable coupling agent it being carried out surface treatment, the thermoplastic resin composition's of this modification prescription is as follows: mica powder 30% (KH550 namely is γ-aminopropyl diethoxy silane) antioxidant 1010 0.05～0.3% (antioxidant 1010 is that four [β-(3.5-di-tert-butyl-4-hydroxy phenyl) propionic acid] defend the tetrol ester season) DLTP 0.25～0.6% (DLTP the is dilauryl thiodipropionate) UV531 0.01～0.5% (UV531 is second-hydroxyl-4-oxy-octyl benzophenone) that polypropylene (PP) 60% polypropylene grafted maleic anhydride (PP-g-MAH) 10% is processed through 1.5% KH550
Above-mentioned composition is mixed in homogenizer, 200～230 ℃ of following blend granulations, make thermoplasticity modification polypropylene plastic pellet by double screw extruder.Descend drying after 4 hours at 100 ℃ on this modified plastics particle then, by injection machine under the pressure condition of 210～230 ℃ temperature and 60～100MPa (MPa), be injected in the designed internal cavity of bowl washer mould, after 1～2 minute to be cooled, can obtain the internal cavity of bowl washer of moulding.
The Main physical performance of these goods is as follows:
Long-term serviceability temperature is greater than 100 ℃
Hot strength 〉=30MPa (MPa)
Unnotched impact strength 〉=20KJ/m
2(thousand joule/square metre)
Heat distortion temperature (under the 0.466MPa) 〉=130 ℃
Embodiment two
The thermoplastic resin base-material that is adopted is nylon 6 (PA6), the particle diameter of the inorganic filler of selecting for use is the 600-1200 order, and it is carried out surface treatment with suitable coupling agent, the thermoplastic resin composition's of this modification prescription is as follows: nylon 6 (PA6) 78% kaolin 20,%KH,550 1% (KH550 system (gamma-aminopropyl-triethoxy-silane) antioxidant (antioxidant 1010: DLTP=1: 2.5) 0.07-0.7% (antioxidant 1010 is that four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid] defend the tetrol ester season) (DLTP is a dilauryl thiodipropionate) UV531 0.2～0.5% (UV531 is second-hydroxyl-4-oxy-octyl benzophenone)
Above-mentioned composition is mixed in homogenizer, 200～230 ℃ of following blend granulations, make thermoplasticity modification of nylon 6 plastic pellets by double screw extruder.Descend drying after 8 hours at 90 ℃ on this modified plastics particle then, by injection machine under the pressure condition of 220～250 ℃ temperature and 60～100MPa (MPa), be injected in the designed internal cavity of bowl washer mould, after 1～2 minute to be cooled, can obtain the internal cavity of bowl washer of moulding.
The Main physical performance of these goods is as follows:
Long-term serviceability temperature is greater than 100 ℃
Hot strength 〉=60MPa (MPa)
Unnotched impact strength 〉=50KJ/m
2(thousand joule/square metre)
Heat distortion temperature (under the 0.466MPa) 〉=190 ℃
Embodiment three
The thermoplastic resin base-material that is adopted is polybutylene terephthalate (PBT) (PBT), the particle diameter of the inorganic filler of selecting for use is the 600-1200 order, and it being carried out surface treatment with suitable coupling agent, the thermoplastic resin composition's of this modification prescription is as follows: the mica powder 17% that polybutylene terephthalate (PBT) (PBT) 76% handles through 1.5%KH550 (KH550 (gamma-aminopropyl-triethoxy-silane) ABS of system 7% antioxidant 2777 0.1-0.5% phosphite ester 0.1-1.0% calcium stearate 0.1-0.5%
Antioxidant 2777 herein is 1,2,5-three (the 4-tert-butyl group-3-hydroxyl-2,6-xylyl benzyl) 1,3, and 5-triazine-2,4,6-(1H, 3H, 5H) triketone and 2, the mixture of 4-dibutyl phenyl phosphites, its ratio is 1: 2
Above-mentioned composition is mixed in homogenizer, 220～250 ℃ of following blend granulations, make thermoplasticity modified poly ester plastic pellet by double screw extruder.This modified plastics particle under the pressure condition of 220-260 ℃ of temperature and 60～100MPa (MPa), is injected in the designed internal cavity of bowl washer mould, after 1～4 minute to be cooled, can obtains the internal cavity of bowl washer of moulding.
The Main physical performance of these goods is as follows:
Long-term serviceability temperature is greater than 100 ℃
Hot strength 〉=60MPa (MPa)
Unnotched impact strength 〉=40KJ/m
2(thousand joule/square metre)
Heat distortion temperature (under the 0.466MPa) 〉=190 ℃
What deserves to be explained is that first three kind component is called major ingredient among the above embodiment one, three, all the other components are called auxiliary material, in the reality preparation, usually are to be the addition that auxiliary material is controlled on the basis with the major ingredient.For example, in embodiment 1, get polypropylene 60 weight portions, polypropylene grafted maleic anhydride 10 weight portions earlier, and through mica powder 30 weight portions of coupling agent treatment, the major ingredient of totally 100 weight portions, the major ingredient with this 100 weight portion serves as that the basis adds auxiliary material antioxidant 1010 0.05～0.3 weight portion (i.e. 0.05～0.3 weight portion auxiliary material/100 weight portion major ingredients), DLTP0.25～0.6 weight portion, UV531 0.01～0.5 weight portion then.
Claims (2)
1. the manufacture method of an internal cavity of bowl washer, its processing step is as follows: at first the thermoplastic resin composition is passed through double screw extruder blend extruding pelletization down at 200～250 ℃, obtain the modified plastics particle, descend drying after 4～8 hours at 90～110 ℃ on this modified plastics particle then, by injection machine under 210～250 ℃ of temperature, 60～100MPa pressure condition, be injected in the designed internal cavity of bowl washer mould, obtain the internal cavity of bowl washer product of moulding after 1～4 minute to be cooled; It is characterized in that, described thermoplastic resin composition's prescription (percetage by weight) comprising: thermoplastic resin 60～76%, modifier 7～10%, the steady agent 0～0.5% of inorganic filler 17～30%, antioxidant 0.05～0.7%, light of crossing through coupling agent treatment, wherein, described first three kind component is called major ingredient, the two kinds of components in back are auxiliary material, in process for preparation, at first prepare major ingredient 100 weight portions, and then the adding auxiliary material, the addition of described auxiliary material is to be the percetages by weight of 100 weight portions as radix with the major ingredient amount; Wherein said thermoplastic resin is selected from polypropylene, a kind of in the polybutylene terephthalate (PBT), described inorganic filler is selected from mica powder, a kind of in the kaolin, its particle diameter is 600～1200 orders, described coupling agent is selected from gamma-aminopropyl-triethoxy-silane, its concentration is 1.5% weight, described modifier is selected from polypropylene grafted maleic anhydride or ABS, and described antioxidant is selected from four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid] pentaerythritol ester and dilauryl thiodipropionate, perhaps 1,2,5-three (the 4-tert-butyl group-3-hydroxyl-2,6-xylyl benzyl) 1,3,5-triazine-2,4,6-(1H, 3H, 5H) triketone and 2,4-dibutyl phenyl phosphites, the steady agent of described light is selected from second-hydroxyl-4-oxy-octyl benzophenone.
2. the manufacture method of internal cavity of bowl washer according to claim 1 is characterized in that, described thermoplastic resin composition's prescription (percetage by weight) also comprises auxiliary material calcium stearate 0.1～0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98110888A CN1076274C (en) | 1998-06-08 | 1998-06-08 | Method for manufacturing internal cavity of bowl washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98110888A CN1076274C (en) | 1998-06-08 | 1998-06-08 | Method for manufacturing internal cavity of bowl washer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1238260A CN1238260A (en) | 1999-12-15 |
| CN1076274C true CN1076274C (en) | 2001-12-19 |
Family
ID=5220903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98110888A Expired - Lifetime CN1076274C (en) | 1998-06-08 | 1998-06-08 | Method for manufacturing internal cavity of bowl washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1076274C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759915B (en) * | 2008-12-23 | 2013-06-05 | 上海金发科技发展有限公司 | Detergent and hot water solution soakage-resistance polypropylene composite |
| CN102286163A (en) * | 2011-07-15 | 2011-12-21 | 高星 | Composite material for manufacturing liner of electric water heater and preparation method thereof |
| BR102013028247A2 (en) * | 2013-11-01 | 2015-09-22 | Univ Fed De Santa Catarina Ufsc | process for increasing adhesion of an inorganic reinforcement material to a polymer matrix, inorganic reinforcement material, process for obtaining a thermoplastic composite material, thermoplastic composite material and thermoplastic composite article |
| CN104844770B (en) * | 2015-04-15 | 2018-05-08 | 宁波奇红电器有限公司 | A kind of refrigerator-freezer liner material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157092A (en) * | 1984-01-26 | 1985-08-17 | チッソ株式会社 | Heavy metal composition for radiation protective material |
| US4997720A (en) * | 1987-03-31 | 1991-03-05 | Dexter Corporation | Thermoplastic compositions and articles made therefrom |
-
1998
- 1998-06-08 CN CN98110888A patent/CN1076274C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60157092A (en) * | 1984-01-26 | 1985-08-17 | チッソ株式会社 | Heavy metal composition for radiation protective material |
| US4997720A (en) * | 1987-03-31 | 1991-03-05 | Dexter Corporation | Thermoplastic compositions and articles made therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1238260A (en) | 1999-12-15 |
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Denomination of invention: Method for manufacturing internal cavity of bowl washer Effective date of registration: 20150810 Granted publication date: 20011219 Pledgee: Hefei Xingtai financing Company limited by guarantee Pledgor: Hefei Genius New Materials Co., Ltd. Registration number: 2015340000014 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20161121 Granted publication date: 20011219 Pledgee: Hefei Xingtai financing Company limited by guarantee Pledgor: Hefei Genius New Materials Co., Ltd. Registration number: 2015340000014 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20011219 |
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| CX01 | Expiry of patent term |