CN102504180A - Special low-density PU (polyurethane) board for automobile roof - Google Patents
Special low-density PU (polyurethane) board for automobile roof Download PDFInfo
- Publication number
- CN102504180A CN102504180A CN2011102973755A CN201110297375A CN102504180A CN 102504180 A CN102504180 A CN 102504180A CN 2011102973755 A CN2011102973755 A CN 2011102973755A CN 201110297375 A CN201110297375 A CN 201110297375A CN 102504180 A CN102504180 A CN 102504180A
- Authority
- CN
- China
- Prior art keywords
- special
- plate
- low density
- roof
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a special low-density PU (polyurethane) board for an automobile roof. The special low-density PU (polyurethane) board is characterized by being prepared from the following raw materials in parts by weight: 50-70 parts of polyether polyol, 20-30 parts of phthalic anhydride polyester polyol, 10-20 parts of high-functionality polyether polyol, 1-2 parts of hard foam silicone oil, 0.1-0.5 part of amine catalyst, 5-25 parts of foaming agent and 0.5-1.0 part of hole opening agent through the following steps: uniformly mixing the raw materials to prepare an A material; reacting the A material with 140-180 parts of crude MDI (methylene diphenyl diisocyanate) (isocyanate) to generate a large foam block; and slicing, so that the density of the PU board can be up to 15-25Kg/m<3>. The special low-density PU board can be used as the automobile roof, and is strong in rigidity, good in dimension stability and low in cost.
Description
Technical field
The present invention relates to automotive trim and use the polyurethane foam production technical field, is the special-purpose low density PU plate of a kind of roof of the vehicle specifically.
Background technology
Existing car inner decorative ceiling mostly adopts the polyurethane foam board manufacturing method, and promptly polyurethane foam board and non-woven fabrics, spun glass, tackiness agent are combined into base material, through heating and mould pressing and the compound car inner decorative ceiling that becomes of lining.Along with the raising of production technology and the demand that reduces cost, low density PU plate more and more comes into one's own, and present low density PU plate exists problems such as poor rigidity, dimensional stability are general to need to solve.
Summary of the invention
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art, and provide a kind of roof of the vehicle special-purpose low density PU plate, mainly solve problems such as existing low density PU plate poor rigidity and dimensional stability are general.
In order to achieve the above object; The present invention is achieved in that the low density PU plate that a kind of roof of the vehicle is special-purpose; Its special character is that it is processed by the following weight proportion raw material: polyether glycol 50-70 part, benzoic anhydride polyester polyol 20-30 part, high functionality polyether glycol 10-20 part; Hard bubble silicone oil 1-2 part, amines catalyst 0.1-0.5 part, whipping agent 5-25 part, pore-creating agent 0.5-1.0 part, thick MDI 140-180 part, described low density PU plate density range: 15-25kg/m3.
The special-purpose low density PU plate of a kind of roof of the vehicle of the present invention; It is processed by following optimum weight proportion raw material: 60 parts of polyether glycols, 25 parts of benzoic anhydride polyester polyols, 15 parts of high functionality polyether glycols; Hard bubble 1.5 parts of silicone oil, 0.3 part of amines catalyst, 20 parts of whipping agents, 0.75 part of pore-creating agent, 160 parts of thick MDI.
The special-purpose low density PU plate of a kind of roof of the vehicle of the present invention, its described polyether glycol is two or more mixing among polyethers 350, polyethers 4110, polyethers 330N, polyethers 700, polyethers 3050, the polyethers ED-28.
The special-purpose low density PU plate of a kind of roof of the vehicle of the present invention, its described polyester polyol is one or both mixing among phthalic anhydride polyester 3152, the phthalic anhydride polyester DF380.
The special-purpose low density PU plate of a kind of roof of the vehicle of the present invention, its described silicone oil that hard bubbles is one or both mixing among AK-8805, AK-8835, L580, the HP-850.
The low density PU plate that a kind of roof of the vehicle of the present invention is special-purpose, its described amines catalyst are one or both the combination among AS-33, C6608, HP305, the HP115.
The low density PU plate that a kind of roof of the vehicle of the present invention is special-purpose, its described whipping agent are a kind of among water, HCFC-141b, the HFC-245fa.
The low density PU plate that a kind of roof of the vehicle of the present invention is special-purpose, its described thick MDI are a kind of among PM-200,44V20, M20S, the MR-200.
The special-purpose low density PU plate of a kind of roof of the vehicle of the present invention, its described pore-creating agent is 501 tensio-active agents.
The special-purpose low density PU plate of a kind of roof of the vehicle of the present invention, its described high functionality polyether glycol is to be initiator with sucrose, the functionality 6-7 of synthesizing polyether.
The special-purpose low density PU plate of a kind of roof of the vehicle of the present invention is on the basis of existing polyurethane foamed material; The silicone oil that hard bubbles that in its proportioning raw materials, adds optimum proportion makes foam aperture evenly, in order; Add pore-creating agent and make the PU cystose possess perforate property raising dimensional stability, add benzoic anhydride polyester polyol, can effectively improve tensile strength; Add the high functionality polyether glycol, make elongation at break and compressive strength improve.
The special-purpose low density PU plate of a kind of roof of the vehicle of the present invention; Its preparation method is to be mixed by polyether glycol, benzoic anhydride polyester polyol, high functionality polyether glycol, the silicone oil that hard bubbles, amines catalyst, whipping agent, pore-creating agent to process the A material; The A material reacts with thick MDI (isocyanic ester); Foaming becomes urethane bulla piece; The polyurethane foam piece that plasticizing is good is cut edge, is cut into slices, and makes the special-purpose low density PU plate of roof of the vehicle, and the special-purpose low density PU plate density of the roof of the vehicle of processing is 15-25Kg/m3.
Compared with present technology the special-purpose low density PU plate of a kind of roof of the vehicle of the present invention has outstanding substantive distinguishing features and marked improvement, and its rigidity is strong, and dimensional stability is good, and cost is low.
Embodiment:
In order to understand better and to implement, specify the present invention below in conjunction with embodiment.
Embodiment 1, takes by weighing polyethers 330N and polyethers 4,110 70 Kg exactly, benzoic anhydride polyester polyol DF380 20 Kg; High functionality polyether glycol 10 Kg, the silicone oil AK-8805 1Kg that hard bubbles, amines catalyst HP115 and AS-33 0.5Kg; Whipping agent water 5.0 Kg, pore-creating agent A501 0.8 Kg mixes it and processes A material; The A material mixed high-speed stirring 30 seconds with PM-200 140 Kg; Foaming becomes urethane bulla piece, and the polyurethane foam piece that plasticizing is good is cut edge, cut into slices, and makes the special-purpose low density PU plate of roof of the vehicle.
Embodiment 2, take by weighing polyethers 3050, polyethers ED28 60 Kg exactly, phthalic anhydride polyester DF380, benzoic anhydride polyester polyol 3152 30Kg; High functionality polyether glycol 10 Kg, the silicone oil L-580 that hard bubbles, AK-8835 2Kg, amines catalyst HP115 and C6608 0.1Kg; Blowing agent H CFC-141b 20 Kg, pore-creating agent A501 0.6 Kg mixes support A material with it; Mixed high-speed stirring 40 seconds with 44,V20 160 Kg again; Foaming becomes urethane bulla piece, and the polyurethane foam piece that plasticizing is good is cut edge, cut into slices, and makes the special-purpose low density PU plate of roof of the vehicle.
Embodiment 3, take by weighing polyethers 700, polyethers 4110 50Kg exactly, and phthalic anhydride polyester 3,152 30 Kg, high functionality polyether glycol 20Kg, silicone oil HP850 1.5Kg hard bubbles; Amines catalyst HP115 and HP305 0.3Kg, whipping agent water 5.0Kg, HFC-245fa 14 Kg; Pore-creating agent A501 0.5 Kg; It is mixed and made into the A material, mixed high-speed stirring 45 seconds with M20S 180 Kg again, foaming becomes urethane bulla piece; The polyurethane foam piece that plasticizing is good is cut edge, is cut into slices, and makes the special-purpose low density PU plate of roof of the vehicle.
Embodiment 4; Take by weighing polyethers 330N, polyethers 700, polyethers 350 65Kg exactly, polyester polyol DF380 22 Kg, high functionality polyether glycol 13 Kg, silicone oil AK-8805 1.3 Kg that hard bubble, amines catalyst AS-33, HP305, C6608 0.4Kg; Whipping agent water 5.0Kg, HCFC-141b 10 Kg; Pore-creating agent A501 1.0 Kg, it is mixed process A material, mixed high-speed stirring 35 seconds with MR-200 170 Kg again, foaming becomes urethane bulla piece; The polyurethane foam piece that plasticizing is good is cut edge, is cut into slices, and makes the special-purpose low density PU plate of roof of the vehicle.
Embodiment 5, take by weighing polyethers 330N, polyethers 700 and polyethers 4,110 60 Kg exactly, phthalic anhydride polyester DF380 25 Kg; High functionality polyether glycol 15 Kg, hard bubble silicone oil AK-8805 and HP-850 1.5 Kg, amines catalyst AS-33, C6608t HP305 0.3Kg; Whipping agent water 10.0Kg, HCFC-141b 10 Kg, pore-creating agent A501 0.75 Kg mixes it and processes A material; Mixed high-speed stirring 35 seconds with 44,V20 160 Kg again; Foaming becomes urethane bulla piece, and the polyurethane foam piece that plasticizing is good is cut edge, cut into slices, and makes the special-purpose low density PU plate of roof of the vehicle.
Embodiment 6, take by weighing polyethers 330N and polyethers 4,110 70 Kg exactly, benzoic anhydride polyester polyol DF380 20 Kg; High functionality polyether glycol 10 Kg, the silicone oil AK-8805 1Kg that hard bubbles, amines catalyst HP115 and AS-33 0.1Kg; Whipping agent water and HCFC-141b 25Kg, pore-creating agent A501 0.5 Kg mixes it and processes A material; The A material mixed high-speed stirring 30 seconds with PM-200 160 Kg; Foaming becomes urethane bulla piece, and the polyurethane foam piece that plasticizing is good is cut edge, cut into slices, and makes the special-purpose low density PU plate of roof of the vehicle.
The key technical indexes that the PU plate of above embodiment reaches:
| Sequence number | Project | Index |
| 1 | Density (kg/m3) | 15-25 |
| 2 | Flexural strength (Mpa) | ≥180 |
| 3 | Compressive strength (Kpa) | ≥130 |
| 4 | Tensile strength (Kpa) | ≥160 |
| 5 | Elongation at break (%) | ≥10 |
Claims (10)
1. the special-purpose low density PU plate of a roof of the vehicle; It is characterized in that it is processed by the following weight proportion raw material: polyether glycol 50-70 part, benzoic anhydride polyester polyol 20-30 part, high functionality polyether glycol 10-20 part; Hard bubble silicone oil 1-2 part, amines catalyst 0.1-0.5 part, whipping agent 5-25 part, pore-creating agent 0.5-1.0 part; Thick MDI 140-180 part, described low density PU plate density range: 15-25kg/m3.
2. the special-purpose low density PU plate of a kind of roof of the vehicle according to claim 1; It is characterized in that it is processed by the following weight proportion raw material: 60 parts of polyether glycols, 25 parts of benzoic anhydride polyester polyols, 15 parts of high functionality polyether glycols; Hard bubble 1.5 parts of silicone oil, 0.3 part of amines catalyst, 20 parts of whipping agents, 0.75 part of pore-creating agent, 160 parts of thick MDI.
3. the special-purpose low density PU plate of a kind of roof of the vehicle according to claim 1 and 2 is characterized in that described polyether glycol is two or more mixing among polyethers 350, polyethers 4110, polyethers 330N, polyethers 700, polyethers 3050, the polyethers ED-28.
4. the special-purpose low density PU plate of a kind of roof of the vehicle according to claim 1 and 2 is characterized in that described polyester polyol is one or both mixing among phthalic anhydride polyester 3152, the phthalic anhydride polyester DF380.
5. the special-purpose low density PU plate of a kind of roof of the vehicle according to claim 1 and 2 is characterized in that the described silicone oil that hard bubbles is one or both mixing among AK-8805, AK-8835, L580, the HP-850.
6. the special-purpose low density PU plate of a kind of roof of the vehicle according to claim 1 and 2 is characterized in that described amines catalyst is the mixing of two or three among AS-33, C6608, HP305, the HP115.
7. the special-purpose low density PU plate of a kind of roof of the vehicle according to claim 1 and 2 is characterized in that described whipping agent is one or both mixing among water, HCFC-141b, the HFC-245fa.
8. the low density PU plate that a kind of roof of the vehicle according to claim 1 and 2 is special-purpose is characterized in that described thick MDI is a kind of among PM-200,44V20, M20S, the MR-200.
9. the special-purpose low density PU plate of a kind of roof of the vehicle according to claim 1 and 2 is characterized in that described pore-creating agent is the A501 tensio-active agent.
10. the special-purpose low density PU plate of a kind of roof of the vehicle according to claim 1 and 2 is characterized in that described high functionality polyether glycol is to be initiator with sucrose, the functionality 6-7 of synthesizing polyether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110297375 CN102504180B (en) | 2011-09-29 | 2011-09-29 | Special low-density PU (polyurethane) board for automobile roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110297375 CN102504180B (en) | 2011-09-29 | 2011-09-29 | Special low-density PU (polyurethane) board for automobile roof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102504180A true CN102504180A (en) | 2012-06-20 |
| CN102504180B CN102504180B (en) | 2013-04-17 |
Family
ID=46216319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110297375 Active CN102504180B (en) | 2011-09-29 | 2011-09-29 | Special low-density PU (polyurethane) board for automobile roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102504180B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898815A (en) * | 2012-10-09 | 2013-01-30 | 烟台正海汽车内饰件有限公司 | Soft and light PU foam plate for automobile engine sound insulating pad |
| CN103342797A (en) * | 2013-07-16 | 2013-10-09 | 山东泽辉高科涂层有限公司 | Polyurethane resin for superfine fiber synthetic leather |
| CN104004152A (en) * | 2014-04-19 | 2014-08-27 | 上海东大化学有限公司 | Combined polyether, polyurethane heat insulation layer repairing agent and use method thereof |
| CN104448230A (en) * | 2014-12-29 | 2015-03-25 | 上海东大化学有限公司 | Premixed polyol and polyurethane sandwich panel made of premixed polyol |
| CN104693395A (en) * | 2015-01-27 | 2015-06-10 | 瀚寅(苏州)新材料科技有限公司 | Flame-retardant polyurethane material and preparation method thereof |
| CN104725587A (en) * | 2013-12-18 | 2015-06-24 | 上海东大聚氨酯有限公司 | Polyurethane thermal-insulation layer repair agent, applications and use method thereof |
| CN105315423A (en) * | 2015-11-17 | 2016-02-10 | 山东一诺威新材料有限公司 | Continuous production-type all-water low-density acoustical board material and preparation method thereof |
| CN106397710A (en) * | 2016-09-30 | 2017-02-15 | 上海东大聚氨酯有限公司 | Combined polyether, polyurethane raw material composition, foam and preparation method |
| CN107474211A (en) * | 2017-08-14 | 2017-12-15 | 华信博伟（安徽）车辆部件有限公司 | A kind of roof sound panel and preparation method thereof |
| CN109627746A (en) * | 2018-11-23 | 2019-04-16 | 贵州航天天马机电科技有限公司 | A kind of frangible formula protection cap in big negative pressure polyurethane front end and its forming method |
| CN112079985A (en) * | 2020-09-21 | 2020-12-15 | 长春富晟汽车饰件有限公司 | Polyurethane plate for automobile roof and preparation method thereof |
| CN114605954A (en) * | 2022-02-25 | 2022-06-10 | 南宁珀源能源材料有限公司 | High-adhesion and water-boiling fast-degumming two-component polyurethane adhesive, preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6330240A (en) * | 1986-07-24 | 1988-02-08 | Sekisui Chem Co Ltd | Preparation of sheet-shaped molding |
| US20060141236A1 (en) * | 2004-12-27 | 2006-06-29 | Bayer Materialscience Ag | Polyurethane molded article and production method thereof |
| CN102093527A (en) * | 2010-12-30 | 2011-06-15 | 上海东大聚氨酯有限公司 | Composite polyether, polyurethane rigid foam as well as raw material composition and usage thereof |
| CN102174166A (en) * | 2011-01-20 | 2011-09-07 | 北京科聚化工新材料有限公司 | Thermoplastic semihard polyurethane foam for automobile ceiling and preparation method thereof |
-
2011
- 2011-09-29 CN CN 201110297375 patent/CN102504180B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6330240A (en) * | 1986-07-24 | 1988-02-08 | Sekisui Chem Co Ltd | Preparation of sheet-shaped molding |
| US20060141236A1 (en) * | 2004-12-27 | 2006-06-29 | Bayer Materialscience Ag | Polyurethane molded article and production method thereof |
| CN102093527A (en) * | 2010-12-30 | 2011-06-15 | 上海东大聚氨酯有限公司 | Composite polyether, polyurethane rigid foam as well as raw material composition and usage thereof |
| CN102174166A (en) * | 2011-01-20 | 2011-09-07 | 北京科聚化工新材料有限公司 | Thermoplastic semihard polyurethane foam for automobile ceiling and preparation method thereof |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898815B (en) * | 2012-10-09 | 2014-08-13 | 烟台正海汽车内饰件有限公司 | Soft and light PU foam plate for automobile engine sound insulating pad |
| CN102898815A (en) * | 2012-10-09 | 2013-01-30 | 烟台正海汽车内饰件有限公司 | Soft and light PU foam plate for automobile engine sound insulating pad |
| CN103342797A (en) * | 2013-07-16 | 2013-10-09 | 山东泽辉高科涂层有限公司 | Polyurethane resin for superfine fiber synthetic leather |
| CN104725587A (en) * | 2013-12-18 | 2015-06-24 | 上海东大聚氨酯有限公司 | Polyurethane thermal-insulation layer repair agent, applications and use method thereof |
| CN104004152A (en) * | 2014-04-19 | 2014-08-27 | 上海东大化学有限公司 | Combined polyether, polyurethane heat insulation layer repairing agent and use method thereof |
| CN104004152B (en) * | 2014-04-19 | 2016-06-08 | 上海东大化学有限公司 | Combined polyether, polyurethane insulation coating renovation agent and using method thereof |
| CN104448230A (en) * | 2014-12-29 | 2015-03-25 | 上海东大化学有限公司 | Premixed polyol and polyurethane sandwich panel made of premixed polyol |
| CN104693395A (en) * | 2015-01-27 | 2015-06-10 | 瀚寅(苏州)新材料科技有限公司 | Flame-retardant polyurethane material and preparation method thereof |
| CN105315423A (en) * | 2015-11-17 | 2016-02-10 | 山东一诺威新材料有限公司 | Continuous production-type all-water low-density acoustical board material and preparation method thereof |
| CN105315423B (en) * | 2015-11-17 | 2018-01-30 | 山东一诺威新材料有限公司 | A kind of full water low density acoustic plate material of continous way type of production and preparation method thereof |
| CN106397710A (en) * | 2016-09-30 | 2017-02-15 | 上海东大聚氨酯有限公司 | Combined polyether, polyurethane raw material composition, foam and preparation method |
| CN106397710B (en) * | 2016-09-30 | 2019-01-01 | 上海东大聚氨酯有限公司 | Combined polyether, polyurethane raw material composition, foam and preparation method |
| CN107474211A (en) * | 2017-08-14 | 2017-12-15 | 华信博伟（安徽）车辆部件有限公司 | A kind of roof sound panel and preparation method thereof |
| CN109627746A (en) * | 2018-11-23 | 2019-04-16 | 贵州航天天马机电科技有限公司 | A kind of frangible formula protection cap in big negative pressure polyurethane front end and its forming method |
| CN109627746B (en) * | 2018-11-23 | 2021-04-06 | 贵州航天天马机电科技有限公司 | Large negative pressure polyurethane front end fragile protective cover and forming method thereof |
| CN112079985A (en) * | 2020-09-21 | 2020-12-15 | 长春富晟汽车饰件有限公司 | Polyurethane plate for automobile roof and preparation method thereof |
| CN114605954A (en) * | 2022-02-25 | 2022-06-10 | 南宁珀源能源材料有限公司 | High-adhesion and water-boiling fast-degumming two-component polyurethane adhesive, preparation method and application thereof |
| CN114605954B (en) * | 2022-02-25 | 2024-02-13 | 南宁珀源能源材料有限公司 | High-adhesion and quick-boiling degumming double-component polyurethane adhesive, and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102504180B (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102504180B (en) | Special low-density PU (polyurethane) board for automobile roof | |
| CN101177525B (en) | Fibre-reinforced polyurethane modified polyisocyanurate composite material and preparation method thereof | |
| CN102898815B (en) | Soft and light PU foam plate for automobile engine sound insulating pad | |
| CN101735425B (en) | Preparation method of rigid spraying polyurethane blended materials for refrigeration house | |
| CN102391640B (en) | Special PU (polyurethane) plate for automobile roof and prepared by one-step wet method | |
| CN103562249B (en) | Moulded parts consisting of reinforced polyurethane urea elastomers and use thereof | |
| CN102399436B (en) | Coarse-cell polyurethane foam board produced with wet method | |
| CN103221445A (en) | Process for making low density high resiliency flexible polyurethane foam | |
| CN101117399A (en) | Cystosepiment for passenger car inner decoration ceiling | |
| WO2012087667A1 (en) | Polyol formulations for improved cold temperature skin cure of polyurethane rigid foams | |
| CN102825712B (en) | Manufacturing technology of automobile instrument desk | |
| CN105153390A (en) | Environment-friendly polyurethane foaming mixed material for tyre and preparation method thereof | |
| CN106632986A (en) | Fiber-reinforced polyurethane rigid forma material | |
| CN108610463A (en) | Low-VOC hydrolysis-resistant polyurethane foam and preparation method thereof | |
| CN105348481B (en) | A kind of special lightweight PU plates of passenger car skylight sunshading board | |
| CN102399437B (en) | DVD high-density PU plate special for automobile interior decoration | |
| CN102725330B (en) | Method for making low density polyurethane foam for sound and vibration absorption | |
| KR20120053748A (en) | Enviromental-friendly polyurethane using biopolyol | |
| JP2012046589A (en) | Polyurethane foam | |
| US5066685A (en) | Fibre-reinforced rigid polyurethane foam and polyol component therefor | |
| CN106632952B (en) | polyurethane foam capable of being thermoformed and preparation method thereof | |
| JPS59117521A (en) | Preparation of polyurethane elastomer | |
| JP7048646B2 (en) | Polyurethane foam with excellent fire resistance and its manufacturing method | |
| CN102367288A (en) | Polyurethane foam composition | |
| CN102399435B (en) | Polyurethane large block-foam used for car ceiling and its production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YANTAI ZHENGHAI HETAI TECHNOLOGY CO., LTD. Free format text: FORMER NAME: YANTAI ZHENGHAI AUTOMOTIVE INTERIOR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 265500 Shandong province Yantai Fushan High-tech Zone Xiangfu Street No. 57 Patentee after: Yantai Zheng Hai He Tai Science and Technology Co., Ltd. Address before: 265500 Shandong province Yantai Fushan High-tech Zone Xiangfu Street No. 57 Patentee before: Yantai Zhenghai Automotive Interior Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180104 Address after: No. 4, Huimin Road, red sand Park, Shishan town, Nanhai District, Nanhai District, Foshan, Guangdong Patentee after: Foshan Zhenghai automotive interiors Co. Ltd. Address before: 265500 Shandong province Yantai Fushan High-tech Zone Xiangfu Street No. 57 Patentee before: Yantai Zheng Hai He Tai Science and Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |