CN1401401A - Method for construction of polyurethane track of sports field - Google Patents
Method for construction of polyurethane track of sports field Download PDFInfo
- Publication number
- CN1401401A CN1401401A CN 02123972 CN02123972A CN1401401A CN 1401401 A CN1401401 A CN 1401401A CN 02123972 CN02123972 CN 02123972 CN 02123972 A CN02123972 A CN 02123972A CN 1401401 A CN1401401 A CN 1401401A
- Authority
- CN
- China
- Prior art keywords
- polyurethane
- track
- top layer
- runway
- job practices
- 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
- 239000004814 polyurethane Substances 0.000 title claims abstract description 70
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 70
- 238000010276 construction Methods 0.000 title claims description 30
- 238000000034 method Methods 0.000 title abstract description 9
- 239000002245 particle Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 238000000465 moulding Methods 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- 230000003746 surface roughness Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical class CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 4
- 239000012948 isocyanate Chemical class 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- 239000005056 polyisocyanate Chemical class 0.000 claims description 4
- 229920001228 polyisocyanate Chemical class 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 150000005846 sugar alcohols Polymers 0.000 claims description 4
- 208000034189 Sclerosis Diseases 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 235000013339 cereals Nutrition 0.000 description 7
- 229920003051 synthetic elastomer Polymers 0.000 description 6
- 239000005061 synthetic rubber Substances 0.000 description 6
- 239000004743 Polypropylene Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Abstract
A method for constructing the polyurethane race track on sports ground includes preparing the base layer on the sports ground, prefabricating the standard polyurethane sheets (1.25mX5-25m) by mould, and tightly adhering the sheets on the base layer. Its advantages are high thickness uniformity and flatness, high weatherability, and high surface firmness.
Description
Technical field
The present invention relates to a kind of job practices of polyurethane track of sports field, this method is separated construction with bottom and top layer that general polyurethane track and field runway is had, relate to the still construction at the scene of bottom of the sluicing gradient or planeness, the top layer that relates to elasticity, surperficial on-slip roughness or decorative pattern then changes into and utilizes mould pre-formed, form most sheet equal thickness, etc. elasticity, etc. surface roughness, etc. the top layer skin of decorative pattern; Be located on the completed bottom with unit top layer skin is closely auxilliary one by one at the scene, and finish good, standardized, the high-quality track and field way of a flatness fast.
Background technology
Common standardization polyurethane track and field runway on the present sports ground, constituted by a bottom and a top layer, and its job practices is: in the zone, scene of track and field runway, do the construction of bottom earlier, do control of ground flat degree and the sluicing gradient or drainage system etc. earlier before comprising construction, and then lay this bottom, and this primer generally can all adopt polyurethane particles, or polyurethane particles mixes use with rubber grain, and must control the planeness and the sluicing gradient well, and wherein in the chemical composition of polyurethane, the portfolio ratio that comprises polyalcohol or polyvalent alcohol and isocyanates or polyisocyanate salt, or other add ratio of filling agent or plasticizer etc., all can do multiple variation, and can be one-pack-type or dual liquid type; And after the bottom construction is finished, on bottom, remake the top layer construction, and its construction technology is: the layer of polyurethane of laying one deck suitable thickness, and before this layer of polyurethane is unhardened, the surface is promptly evenly laid one deck rubber grain or polyurethane particles more thereon, but make the sticking action (equaling layer of polyurethane) of mat layer of polyurethane, make the uneven of these densely covered particles must form a roughness surface when the adhesive use; Or the synthetic rubber particle mixed with polyurethane adhesion agent; and be laid on the bottom with suitable thickness again; to form the surface surface structure of protruding on-slip grain is arranged, the polyurethane track and field runway that whole constructions are finished can be reached the standard of international track and field alliance to the elasticity of track and field runway defined, surperficial on-slip roughness (promptly being densely covered with protruding on-slip grain) or decorative pattern.
But the method that above-mentioned tradition is made polyurethane track and field runway has following shortcoming:
When (1) constructed in the top layer, one deck rubber grain or the polyurethane particles layer laid before layer of polyurethane is unhardened can't be reached even quality requirements fully, make the not enough homogeneous of surface roughness.
(2) cohesive bond of rubber surface particle or polyurethane particles layer and layer of polyurethane can't guarantee all firmly adhesions of each particle (particle is to be trapped in the layer of polyurethane and the protruding fraction that exposes), and the less particle of part adhesion area breaks away from easily.
When (3) the top layer construction was done at the scene, the wayward homogeneous of being laid of layer of polyurethane thickness caused runway elasticity inequality, directly influences the moulding quality of runway.
When (4) the top layer construction was done at the scene, institute's palpus experience and cost of labor were all higher, can't effectively promote speed of application or quality.
And make the disappearance of polyurethane runway at tradition, the dealer once had the proposition mode of ameliorating: as Taiwan notification number 348196 cases number 86108945 they " PP (polypropylene) resin artificial grass sports field, the construction processing procedure of court runway " patent of invention, notification number 486531 cases number 88110602 they " SR (synthetic rubber) resin blanket sports grounds, court runway and pavement " patent of invention, it " PP (polypropylene) resin artificial grass sports field of notification number 445333 case 86108945A01, the construction processing procedure of court runway appends (one) " patent of invention, and have notification number 268472 cases number 84209995 they " PP resin artificial course " novel patents of similar effect or the like, wherein, though all contain the notion that has not all at the runway site operation in the technology contents of all kinds of patents, but still have desirable not to the utmost part in each process, as: notification number 486531 cases number 88110602 they " SR (synthetic rubber) resin blanket sports grounds, court runway and pavement " patent of invention, it selects for use synthetic rubber to make the beginning skin-material, not only must high pressure-temperature the beginning can moulding, processing cost is improved relatively and difficult effectively control moulding quality, it utilizes roller set that pasty state A raw material (seeing its manual) roll forming is gone out lengthy motion picture shape moulding product again, its mode comparing class is similar to the making of noodles, but not extrude as the high pressure of aluminium extruded type, broadening degree size also is difficult to effective control, and must again lengthy motion picture shape moulding product be cut into preliminary dimension when using and re-lay (seeing its manual), cause the waste of moulding product easily, be not suitable for general standardization track and field runway specification of seeing, in addition, the rubber weatherability is not good, the easy deterioration of surface physical property, not anti-spikes damage.
Summary of the invention
It is fast to the purpose of this invention is to provide a kind of speed of application, and laying quality is high and satisfy the job practices of International Track and Field Association to the polyurethane track of sports field of track and field runway requirement.
The made runway of this method is made of a bottom and a top layer, and job practices comprises the steps:
(1) does the construction of bottom earlier on the regional ground at track and field runway scene, make whole runway ground be equipped with bottom fully;
(2) in addition at non-runway scene, utilize polyurethane material, and use moulding form to carry out the mold casting forming operation, make the top layer picounit, and one whole surface that is provided with ridge design of the inner surface of this mould, make the top layer picounit that is molded into have the ridge design surface, using becomes the required surface roughness of runway;
(3) utilize the top layer picounit again,, one by one each top layer picounit closely is layed on the round floor of finishing of having constructed, make and be paved with the top layer picounit on the whole round floor, to finish the construction of whole polyurethane runway at track and field way scene.
The bottom construction of described step (1) is to finish according to general bottom job practices; do the planeness on ground or the construction of the sluicing gradient or drainage system etc. earlier before comprising construction; after treating the ground leveling; re-lay bottom, and this bottom can all adopt polyurethane particles, or polyurethane particles mixes use with rubber grain; and mix and to make adhesive with polyurethane and mixed; and before sclerosis, be laid immediately on and form bottom on the ground, this bottom is hardened in natural temperature.
About 1.25m of width and certain-length that the top layer picounit that is molded as in the described step (2) has the single runway of standard are about 5m～25m.
In the described step (3), when closely being layed in each top layer picounit on the bottom, must make to reach between top layer picounit and bottom the close adhesion between adjacent two top layer picounits.
Insert the polyurethane material in mould in the described step (2), its chemical composition is that the portfolio ratio of polyalcohol or polyvalent alcohol and isocyanates or polyisocyanate salt does not limit and can do multiple allotment.
Described polyurethane material is one-pack-type or dual liquid type.
Described polyurethane material is employed to add that to fill agent mixed proportion percentage by weight be 0%～60%;
The employed plasticizer mixed proportion of described polyurethane material percentage by weight is 0%～50%.
The hardness of described polyurethane material is 15 °～80 ° A.
The present invention's job practices speed of application is fast, and shop polyurethane runway just can satisfy the requirement of International Track and Field Association to the track and field runway.
Description of drawings
Fig. 1 is the structure sectional view of the present invention's method shop polyurethane track and field runway just.
Fig. 2 is a flow chart of the present invention.
Fig. 3 is the structural representation of the used top layer skin of the present invention.
Fig. 4 is layed in construction schematic diagram on the bottom for the present invention with the top layer skin.
The specific embodiment
See also Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the present invention includes following steps:
(1) on the runway ground 10 at track and field runway scene, do the construction of bottom 20 earlier, make whole runway ground 10 be equipped with bottom 20 fully, this is to finish according to general bottom job practices, do the planeness on ground 10 or the construction of the sluicing gradient or drainage system etc. earlier before comprising construction, after treating ground 10 levelings, re-lay this bottom 20, and this bottom 20 can all adopt polyurethane particles, or polyurethane particles mixes use with rubber grain, and mixes and to make adhesive with polyurethane and mixed, and before sclerosis, be laid immediately on the ground 10 to form bottom 20, this bottom 20 is hardened in natural temperature;
(2) in addition at non-track and field runway scene, utilize polyurethane material, and use a molding tool to carry out the mold casting forming operation, to make the plural pieces top layer picounit 30 of enough numbers respectively.This is one whole the surface that is provided with ridge design that ties up to surface within this mould, make polyurethane material inject (about 20 ℃～60 ℃ of processing temperature) in the mould and be molded into one have equal thickness, etc. the top layer picounit 30 on elasticity and ridge design 31 surfaces, and make each top layer picounit 30 to have the about 1.25m of width of the single runway of standard, reach length and decide, can be 5m～25m for best on die length; Flow into the interior polyurethane material of mould, its chemical composition comprises that the portfolio ratio of polyalcohol or polyvalent alcohol and isocyanates or polyisocyanate salt does not limit and can do multiple variation, and can be one-pack-type or dual liquid type, and other add and fill agent (as adding the stone flour of low cost) mixed proportion and can be 0%～60%, or the mixed proportion of plasticizer can be 0%～50%, all can proper proportion allocate, form type hardness tester and can be defined in 15 °～80 ° A.
(3) utilize the plural pieces top layer picounit 30 of enough numbers again, in track and field runway scene, on 0 of the bottom that one by one each top layer picounit 30 closely being layed in has constructed finishes, make on 20 of the whole bottoms and be paved with top layer picounit 30, to finish the construction of whole polyurethane runway.Its work progress is mat polyurethane adhesion agent, one by one each top layer picounit 30 closely is layed on the bottom 20, the close adhesion that comprises 30 of 20 of top layer picounit 30 and bottoms and adjacent two top layer picounits, as shown in Figure 4, can finish the construction of the good and high-quality track and field runway of a flatness fast.
The present invention has the following advantages:
(1) because of the bottom 20 of the polyurethane runway that relates to the sluicing gradient or planeness, still at track and field runway site operation, it is comparatively firm, perfect that the foundation construction of the polyurethane runway of completion back is got, the size of the runway specification of also satisfying the criteria easily.
(2) make and relate to elasticity, the top layer of surface on-slip roughness or decorative pattern, then change and utilize mould and pre-formed, and the surface design of ridge design on the mat moulding form, make each the top layer picounit 30 that is molded as all have equal thickness, etc. elasticity and identical ridge design 31 surfaces, and these ridge design 31 surfaces promptly are used for forming surface roughness, use the homogeneous of possessing surface roughness, can avoid known polyurethane track and field runway to construct fully at the scene and the top layer particle that is easy to generate easily comes off, surface roughness is inhomogeneous, and uneven thickness causes the also unequal quality shortcoming of elasticity.
(3) processing temperature of material (about 20 ℃～60 ℃) is low far beyond rubber, and because of the size of a standard track and field runway has certain specification (having only two kinds on straightaway and curved arc runway), the specification that makes polyurethane be molded as top layer picounit 30 changes little, can be divided into two kinds of a linear pattern and curved arc shapes as mould, make linear pattern and two kinds of top layer picounits 30 of curved arc shape of being molded as can organize formation one standard track and field runway, so use equipment cost and processing cost all low than roll forming, device damage rate or maintenance cost are also little.
(4) last site operation operation, only be the mat adhesive with each top layer picounit 30 close adhesion at bottom 20, and can have the width (about 1.25m), certain-length of the single runway of standard again because of each top layer picounit 30 and (can be 5m～25m), so the laying operation of close adhesion can be simpler and easy and quick.
Claims (9)
1, a kind of job practices of polyurethane track of sports field, this polyurethane runway are to be made of a bottom and a top layer skin, and this job practices may further comprise the steps:
(1) does the construction of bottom earlier on the regional ground at track and field runway scene, make whole runway ground be equipped with bottom fully;
(2) in addition at non-runway scene, utilize polyurethane material, and use a molding tool to carry out the mold casting forming operation, make the top layer picounit, and one whole surface that is provided with ridge design of the inner surface of this mould, make the top layer picounit that is molded into have the ridge design surface, using becomes the required surface roughness of runway;
(3) at track and field runway scene, one by one each top layer picounit closely is layed on the round floor of finishing of having constructed, make and be paved with the top layer picounit on the whole round floor, to finish the construction of whole polyurethane runway.
2; job practices according to the described a kind of polyurethane track of sports field of claim 1; it is characterized in that: the bottom construction of described step (1) is to finish according to general bottom job practices; do the planeness on ground or the construction of the sluicing gradient or drainage system etc. earlier before comprising construction; after treating the ground leveling; re-lay bottom; and this bottom can all adopt polyurethane particles; or polyurethane particles mixes use with rubber grain; and mix and to make adhesive with polyurethane and mixed; and before sclerosis; be laid immediately on and form bottom on the ground, this bottom is hardened in natural temperature.
3, according to the job practices of the described a kind of polyurethane track of sports field of claim 1, it is characterized in that: about 1.25m of width and certain-length that the top layer picounit that is molded as in the described step (2) has the single runway of standard are about 5m～25m.
4, according to the job practices of the described a kind of polyurethane track of sports field of claim 1, it is characterized in that: when closely being layed in each top layer picounit on the bottom in the described step (3), must make to reach between top layer picounit and bottom the close adhesion between adjacent two top layer picounits.
5, according to the job practices of the described a kind of polyurethane track of sports field of claim 1, it is characterized in that: insert the polyurethane material in mould in the described step (2), its chemical composition be polyalcohol or polyvalent alcohol and isocyanates or polyisocyanate salt portfolio ratio and the restriction and can do multiple allotment.
6, according to the job practices of claim 1 or 5 described a kind of polyurethane track of sports field, it is characterized in that: described polyurethane material is one-pack-type or dual liquid type.
7, according to the job practices of claim 1 or 5 described a kind of polyurethane track of sports field, it is characterized in that: described polyurethane material is employed to add that to fill the agent mixed proportion be 0%～60%.
8, according to the job practices of claim 1 or 5 described a kind of polyurethane track of sports field, it is characterized in that: the employed plasticizer mixed proportion of described polyurethane material is 0%～50%.
9, according to the job practices of claim 1 or 5 described a kind of polyurethane track of sports field, it is characterized in that: the hardness of described polyurethane material is 15 °～80 ° A.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02123972XA CN1166424C (en) | 2002-07-11 | 2002-07-11 | Method for construction of polyurethane track of sports field |
| TW92104115A TWI221491B (en) | 2002-07-11 | 2003-02-26 | A method for constructing the polyurethane racetrack on sports ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02123972XA CN1166424C (en) | 2002-07-11 | 2002-07-11 | Method for construction of polyurethane track of sports field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1401401A true CN1401401A (en) | 2003-03-12 |
| CN1166424C CN1166424C (en) | 2004-09-15 |
Family
ID=4745277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02123972XA Expired - Fee Related CN1166424C (en) | 2002-07-11 | 2002-07-11 | Method for construction of polyurethane track of sports field |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1166424C (en) |
| TW (1) | TWI221491B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587254A (en) * | 2012-03-20 | 2012-07-18 | 欧阳鹰湘 | Manufacturing process for cement-base plastic track coiled material |
| CN105926410A (en) * | 2016-05-16 | 2016-09-07 | 天津纽威特橡胶制品股份有限公司 | Playground plastic runway and laying method thereof |
| WO2016169302A1 (en) * | 2015-04-21 | 2016-10-27 | 李宇轩 | Sports ground pre-cast polyurethane skin layer preparation method and sports ground preparation method thereof |
| CN107254821A (en) * | 2017-06-30 | 2017-10-17 | 宁波格林美孚新材料科技有限公司 | A kind of thermoplastic foam polyurethane body athletic ground |
| CN110819221A (en) * | 2019-10-31 | 2020-02-21 | 山东扬名新材料技术有限公司 | Rare earth polyurethane plastic track |
| WO2023108308A1 (en) * | 2021-12-17 | 2023-06-22 | 李宇轩 | Method for preparing pre-cast polyurethane surface layer for use in laying sports field |
-
2002
- 2002-07-11 CN CNB02123972XA patent/CN1166424C/en not_active Expired - Fee Related
-
2003
- 2003-02-26 TW TW92104115A patent/TWI221491B/en not_active IP Right Cessation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587254A (en) * | 2012-03-20 | 2012-07-18 | 欧阳鹰湘 | Manufacturing process for cement-base plastic track coiled material |
| CN102587254B (en) * | 2012-03-20 | 2014-12-17 | 欧阳鹰湘 | Manufacturing process for cement-base plastic track coiled material |
| WO2016169302A1 (en) * | 2015-04-21 | 2016-10-27 | 李宇轩 | Sports ground pre-cast polyurethane skin layer preparation method and sports ground preparation method thereof |
| CN105926410A (en) * | 2016-05-16 | 2016-09-07 | 天津纽威特橡胶制品股份有限公司 | Playground plastic runway and laying method thereof |
| CN107254821A (en) * | 2017-06-30 | 2017-10-17 | 宁波格林美孚新材料科技有限公司 | A kind of thermoplastic foam polyurethane body athletic ground |
| CN110819221A (en) * | 2019-10-31 | 2020-02-21 | 山东扬名新材料技术有限公司 | Rare earth polyurethane plastic track |
| WO2023108308A1 (en) * | 2021-12-17 | 2023-06-22 | 李宇轩 | Method for preparing pre-cast polyurethane surface layer for use in laying sports field |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI221491B (en) | 2004-10-01 |
| CN1166424C (en) | 2004-09-15 |
| TW200417658A (en) | 2004-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102419923B1 (en) | Molded composite slab and related systems and methods | |
| EP1212266B1 (en) | Multiple layer composite material consisting of cement-bound concrete and polymer-bound concrete and method for producing the same | |
| JPH05253462A (en) | Device for supplying powder and granular material with fixed bed depth and production of patterned formed body using the same device | |
| RU2465294C1 (en) | Method to manufacture coating | |
| CN1166424C (en) | Method for construction of polyurethane track of sports field | |
| US5376321A (en) | Method of producing patterned shaped article | |
| CN1303456A (en) | Method for producing coating with decorative patterns, mineral coating and tool for implementing same | |
| CN106149508B (en) | The preparation method of the precast type polyurethane skin layer on athletic ground | |
| KR20080088049A (en) | Method of paving ground areas and multi-layered structure manufactured by using the same | |
| DE10026413A1 (en) | Process for the production of concrete blocks coated with polymer artificial stone | |
| WO2015051210A1 (en) | Cementitious product | |
| CN1077440A (en) | A kind of immitation stone plate and production technique thereof | |
| CN1280226C (en) | Regeneration and combination method for waste ceramic and its combined products | |
| JPH07195325A (en) | Molding method of molded body having pattern by granule layer | |
| TW201638431A (en) | Preparation method of precast polyurethane surface of sports ground and its manufacturing process of sports ground | |
| GB2500742A (en) | Recycling of carpets into stack with anti-skid coating | |
| JPH0768519A (en) | Molding method of patterned molded form using angle-of-repose forming member | |
| ZA200604023B (en) | Manufacture of moulded paving elements | |
| DE102004040380B4 (en) | Molded part for a wall cladding or as a support element | |
| RU39141U1 (en) | A SET OF TOOLS FOR LAYING A COATING BASED ON POLYMER MATERIAL WITH A RUBBER BABY | |
| KR100355100B1 (en) | Block type floor panel united ascon and plastics astile and processing method thereof | |
| CN2871690Y (en) | Thin washing/polishing stone brick structure | |
| CN1182009A (en) | Composite material and its preparation | |
| CA1313740C (en) | Method of manufacturing agglomerated facing boards | |
| US20210054582A1 (en) | Use of Spike Roller on an Exposed Concrete Surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YISHUDA TECHNOLOGICAL MATERIAL CO., LTD. Free format text: FORMER OWNER: LI HUANGBAO Effective date: 20081114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081114 Address after: Taiwan County, Hsinchu city China Chupei Patentee after: Isotech Products Inc Address before: Taiwan, China Patentee before: Li Huangbao |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040915 Termination date: 20120711 |