CN1626619A - Organic fireproofing plugging - Google Patents
Organic fireproofing plugging Download PDFInfo
- Publication number
- CN1626619A CN1626619A CN 200310111118 CN200310111118A CN1626619A CN 1626619 A CN1626619 A CN 1626619A CN 200310111118 CN200310111118 CN 200310111118 CN 200310111118 A CN200310111118 A CN 200310111118A CN 1626619 A CN1626619 A CN 1626619A
- Authority
- CN
- China
- Prior art keywords
- fire prevention
- fire
- raw material
- pearlstone
- weight
- 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
- 238000004079 fireproofing Methods 0.000 title 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 8
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 7
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims abstract description 7
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 7
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 7
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 7
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010455 vermiculite Substances 0.000 claims abstract description 7
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 7
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 7
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000002265 prevention Effects 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 12
- 239000005909 Kieselgur Substances 0.000 claims description 11
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 11
- 239000003063 flame retardant Substances 0.000 claims description 11
- 229920002545 silicone oil Polymers 0.000 claims description 11
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 8
- 230000036571 hydration Effects 0.000 claims description 6
- 238000006703 hydration reaction Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 206010000369 Accident Diseases 0.000 abstract 1
- -1 diethyl silica Chemical compound 0.000 abstract 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910001562 pearlite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 239000004411 aluminium Substances 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
- 238000009435 building construction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fireproofing Substances (AREA)
Abstract
A fire-proof organic blocking material for blocking the through hole and gap in fire accident is prepared from diethyl silica oil, light and/or heavy calcium carbonate, expanded pearlite (and/or vermiculite), filler chosen from diatomite, talc powder and bentone, and fire retarder chosen from aluminium hydroxide, hydrated zinc borate and magnesium hydroxide. Its advantages are high effect and durable plasticity and toughness.
Description
Technical field
The present invention relates to refractory materials, the fire prevention calking in particularly shutoff penetrability opening and building slit.
Background technology
According to GBJ 16-87 " Code for fire protection design of buildings " and GB 50045-95 " Code for fire protection design of high rise buildings ", as the wall of building construction fire compartment and floor run through thing (as cable, airduct etc.) when passing formed opening etc. locate, must carry out fireproof blocking to it, be diffused into spreading of another subregion and poison gas from a subregion when preventing that fire from taking place.Organic fire prevention calking is the most frequently used fire-proof sealing material.
But, the present organic fire prevention calking that uses, in use, because caking agent is aging and envrionment temperature etc. is former thereby usually solidify.After the curing, the volumetric shrinkage that has and form the slit causes the shutoff imprecision, has stayed potential safety hazard; Moreover comparatively hard after solidifying, the maintenance that is not easy to cable is changed.Its fire performance of putty that also has is bad, easily hardening cracks when fire takes place and can not effectively stop flame and flue gas to spread.
Summary of the invention
In view of above-mentioned, purpose of the present invention is exactly to solve that organic fire prevention calking in use solidifies and the defective that is unfavorable for constructing, overhauls provides a kind of fire performance height, plasticity-and the good organic fire prevention calking of snappiness.
The present invention adopts diethyl silicone oil, can make putty have secular plasticity-and snappiness; And adopt the uninflammability mineral filler and fill out/seam gap material, fire retardant, fire-retardant material rational proportion realize its purpose.
Organic fire prevention calking of the present invention has the raw material of following amount by weight to mix formation:
Diethyl silicone oil 33～38, light calcium carbonate or water-ground limestone 32～37, pearlstone or expanded vermiculite 1～3, filler 17～23, fire retardant 3～6, above-mentioned fire retardant are at least a in aluminium hydroxide, hydration zinc borate and the magnesium hydroxide.
Total dosage of above-mentioned fire retardant is 3～6 weight parts, when select for use wherein two or three the time, the dosage of each raw material is adjusted arbitrarily in total dosage scope.
Above-mentioned filler is at least a in natural diatomaceous earth, talcum powder and the wilkinite.The total dosage of filler is 17～23 weight parts, when select for use wherein two or three the time, the dosage of each raw material can be adjusted arbitrarily in total dosage scope.
Diethyl silicone oil among the present invention, it has high-and low-temperature resistance and good ageing resistance and chemical stability, can make putty have secular plasticity-and snappiness.Light calcium carbonate and water-ground limestone are for filling out/the seam gap material.Filler is at least a in natural diatomaceous earth, talcum powder and the wilkinite, be nontoxic, can resistant to elevated temperatures non-combustible material.Wherein, the major function of natural diatomaceous earth is to improve the snappiness and the thermotolerance of putty; Talcous adding can make putty have to adapt to deformation ability such as flexible; Wilkinite can improve the plasticity-of putty.Pearlstone and expanded vermiculite are fire-retardant materials, and the two is light weight, porous material that thermal conductivity is low, can improve the fire performance of putty.Fire retardant is at least a in aluminium hydroxide, hydration zinc borate and the magnesium hydroxide.The three is efficient, inexpensive, nontoxic inorganic combustion inhibitor, can improve the fire performance of putty, and the generation of flue gas can suppress putty effectively and be subjected to fire the time.
The present invention is through the check of national fire-proof construction material quality supervision and test center, and detected result sees Table 1:
The performance index of table 1 organic fire prevention calking of the present invention
| Sequence number | Interventions Requested | Technical indicator | Measured result | Conclusion |
| 1 | Fire performance (min) | One-level: 〉=180 secondarys: 〉=120 three grades: 〉=60 | 194～241 | One-level is qualified |
| 2 | Outward appearance | Plastic solid has certain snappiness | Meet the requirements | Qualified |
| 3 | Density (kg/m 3) | ≤2.0×10 3 | 1.6×10 3 | Qualified |
| 4 | Water tolerance (my god) | 〉=3, no swelling | Meet the requirements | Qualified |
| 5 | Oil-proofness (my god) | 〉=3, no swelling | Meet the requirements | Qualified |
| 6 | Corrodibility (my god) | 〉=7, non-corroding and corrosion phenomenon | Meet the requirements | Qualified |
Described, organic fire prevention calking of the present invention and existing organic fire prevention calking compare, and the fire-proof and thermal-insulation effect is remarkable, and physicochemical property is good, and good weatherability has the good fire resistance energy.This putty is a kind of flexible body, and sealing characteristics is good, can adapt in the practice because the slit that the temperature difference and mechanical deformation etc. form; Have secular plasticity-and snappiness, be convenient to install, change, overhaul.When fire took place, under action of high temperature, the each component synergy expanded the putty volume a little in the putty, forms firm back-fire relief thermofin, can various openings and slit shutoff are tight, and stop propagation of flame and flue gas to spread effectively.In addition, organic fire prevention calking of the present invention, raw material sources are rich and easy to get, and production technique is simple, to no corrosive naturees such as pipeline, electric wires.
The present invention is applicable to the fireproof blocking in holes such as place electric wire such as power plant, substation, industrial and mineral factory building, Highrise buildings and pipeline, slit, stops flame and smog to spread.
Below, with embodiment the present invention is further described again.
Embodiment
Embodiment
Organic fire prevention calking of the present invention is pressed the consumption of table 2, and each feed composition of weighing is by weight mediated and evenly become to have certain flexible plastic solid, and weighing then, packing get final product.
The raw material of table 2 embodiment and dosage (weight part), fire performance
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 | |
| Major ingredient | Diethyl silicone oil | 33 | 36 | 34 | 35 | 38 | 37 |
| Fill out/connect the slot material | Light calcium carbonate | 32 | 37 | 34 | 17 | ||
| Water-ground limestone | 36 | 33 | 18 | ||||
| Filler | Natural diatomaceous earth | 20 | 17 | 10 | 16 | 11 | 14 |
| Talcum powder | 4 | 7 | 4 | ||||
| Wilkinite | 3 | 11 | 4 | ||||
| Fire-retardant material | Pearlstone | 1.5 | 2 | 2 | 1 | 3 | 1 |
| Expanded vermiculite | 0.5 | 1 | |||||
| Fire retardant | Aluminium hydroxide | 6 | 5 | 2 | |||
| Hydration zinc borate | 3 | 4.5 | |||||
| Magnesium hydroxide | 3.5 | 2 | |||||
| Fire performance (min) | 241 | 213 | 202 | 225 | 198 | 194 | |
Claims (8)
1, a kind of organic fire prevention calking, it is characterized in that having the raw material of following amount by weight to mix formation: diethyl silicone oil 33～38, light calcium carbonate is or/and water-ground limestone 32～37, pearlstone is or/and expanded vermiculite 1～3, filler 17～23, fire retardant 3～6, above-mentioned fire retardant are at least a in aluminium hydroxide, hydration zinc borate and the magnesium hydroxide.
2, organic fire prevention calking according to claim 1 is characterized in that said filler is at least a in natural diatomaceous earth, talcum powder and the wilkinite.
3, organic fire prevention calking according to claim 2 is characterized in that having the following raw material of amount by weight: diethyl silicone oil 33, light calcium carbonate 32, natural diatomaceous earth 20, pearlstone 1.5, aluminium hydroxide 6.
4, organic fire prevention calking according to claim 2 is characterized in that being made of the raw material mixing of following metering by weight: diethyl silicone oil 36, light calcium carbonate 37, natural diatomaceous earth 17, pearlstone 2, aluminium hydroxide 5.
5, organic fire prevention calking according to claim 2 is characterized in that having the following raw material of amount by weight: diethyl silicone oil 34, light calcium carbonate 34, natural diatomaceous earth 10, pearlstone 2, expanded vermiculite 0.5, magnesium hydroxide 3.5.
6, organic fire prevention calking according to claim 2 is characterized in that having the following raw material of amount by weight: diethyl silicone oil 35, water-ground limestone 36, natural diatomaceous earth 16, talcum powder 4, wilkinite 3, pearlstone 1, expanded vermiculite 1, hydration zinc borate 3.
7, organic fire prevention calking according to claim 2 is characterized in that having the following raw material of amount by weight: diethyl silicone oil 38, water-ground limestone 33, natural diatomaceous earth 11, wilkinite 11, pearlstone 3, hydration zinc borate 4.5.
8, organic fire prevention calking according to claim 2 is characterized in that having the following raw material of amount by weight: diethyl silicone oil 37, water-ground limestone 17, light calcium carbonate 18, natural diatomaceous earth 14, wilkinite 4, pearlstone 1, aluminium hydroxide 2, magnesium hydroxide 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310111118 CN1260324C (en) | 2003-12-08 | 2003-12-08 | Organic fireproofing plugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310111118 CN1260324C (en) | 2003-12-08 | 2003-12-08 | Organic fireproofing plugging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1626619A true CN1626619A (en) | 2005-06-15 |
| CN1260324C CN1260324C (en) | 2006-06-21 |
Family
ID=34759326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310111118 Expired - Fee Related CN1260324C (en) | 2003-12-08 | 2003-12-08 | Organic fireproofing plugging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1260324C (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101277007B (en) * | 2008-05-21 | 2010-04-07 | 苍南县永盛电力工程有限公司 | Technique and fixed frame for construction of cable fireproof organic block material |
| CN101968061A (en) * | 2010-11-19 | 2011-02-09 | 苏州顶裕节能设备有限公司 | Explosionproof fan |
| CN101423744B (en) * | 2008-06-23 | 2011-11-09 | 卜伟荣 | Preparation method of organic fire prevention calking composition |
| CN101503614B (en) * | 2008-02-05 | 2012-03-07 | 嵊州市电缆防火附件厂 | Preparation of expansion type halogen-free organic fireproofing blocking material |
| CN103337263A (en) * | 2013-06-19 | 2013-10-02 | 浙江川科防保材料发展有限公司 | Cable combined type fireproof blocking module for nuclear power, and preparation method thereof |
| CN104845390A (en) * | 2015-04-23 | 2015-08-19 | 铜陵祥云消防科技有限责任公司 | Mouse, ant and snake resistant fireproof putty and preparation method thereof |
| CN104845372A (en) * | 2015-04-23 | 2015-08-19 | 铜陵祥云消防科技有限责任公司 | Tension resistant fireproof putty and preparation method thereof |
| CN104861664A (en) * | 2015-04-23 | 2015-08-26 | 铜陵祥云消防科技有限责任公司 | Bird pecking-proofing fireproof jam material and preparation method thereof |
| CN104861660A (en) * | 2015-04-23 | 2015-08-26 | 铜陵祥云消防科技有限责任公司 | Weatherproof fireproof jam material and preparation method thereof |
| CN105958653A (en) * | 2016-06-30 | 2016-09-21 | 国网山东省电力公司招远市供电公司 | Grid dispatching monitoring early warning system and method |
| CN107746575A (en) * | 2017-09-22 | 2018-03-02 | 镇江市太浪新材料科技有限公司 | A kind of fire retardant for building organic fire prevention calking |
| CN107805391A (en) * | 2017-09-28 | 2018-03-16 | 公安部四川消防研究所 | A kind of silicon rubber fire retardant module and preparation method thereof |
| CN107902976A (en) * | 2017-09-28 | 2018-04-13 | 公安部四川消防研究所 | A kind of environmental protection fire retardant module and preparation method thereof |
| CN110760193A (en) * | 2019-11-20 | 2020-02-07 | 河南东风电力工程有限公司 | Organic fireproof blocking material |
| CN112961500A (en) * | 2021-03-18 | 2021-06-15 | 广州德海高分子材料科技有限公司 | Non-solidified type sealing fireproof moistureproof silica gel mud and preparation method thereof |
| CN114907054A (en) * | 2022-04-02 | 2022-08-16 | 北京交通大学 | Non-solidified fireproof plugging silica gel mud and preparation method thereof |
-
2003
- 2003-12-08 CN CN 200310111118 patent/CN1260324C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503614B (en) * | 2008-02-05 | 2012-03-07 | 嵊州市电缆防火附件厂 | Preparation of expansion type halogen-free organic fireproofing blocking material |
| CN101277007B (en) * | 2008-05-21 | 2010-04-07 | 苍南县永盛电力工程有限公司 | Technique and fixed frame for construction of cable fireproof organic block material |
| CN101423744B (en) * | 2008-06-23 | 2011-11-09 | 卜伟荣 | Preparation method of organic fire prevention calking composition |
| CN101968061A (en) * | 2010-11-19 | 2011-02-09 | 苏州顶裕节能设备有限公司 | Explosionproof fan |
| CN103337263A (en) * | 2013-06-19 | 2013-10-02 | 浙江川科防保材料发展有限公司 | Cable combined type fireproof blocking module for nuclear power, and preparation method thereof |
| CN103337263B (en) * | 2013-06-19 | 2016-01-20 | 浙江川科防保材料发展有限公司 | A kind of nuclear power cable Combined fireproof plugging module and preparation method thereof |
| CN104861660A (en) * | 2015-04-23 | 2015-08-26 | 铜陵祥云消防科技有限责任公司 | Weatherproof fireproof jam material and preparation method thereof |
| CN104861664A (en) * | 2015-04-23 | 2015-08-26 | 铜陵祥云消防科技有限责任公司 | Bird pecking-proofing fireproof jam material and preparation method thereof |
| CN104845372A (en) * | 2015-04-23 | 2015-08-19 | 铜陵祥云消防科技有限责任公司 | Tension resistant fireproof putty and preparation method thereof |
| CN104845390A (en) * | 2015-04-23 | 2015-08-19 | 铜陵祥云消防科技有限责任公司 | Mouse, ant and snake resistant fireproof putty and preparation method thereof |
| CN105958653A (en) * | 2016-06-30 | 2016-09-21 | 国网山东省电力公司招远市供电公司 | Grid dispatching monitoring early warning system and method |
| CN107746575A (en) * | 2017-09-22 | 2018-03-02 | 镇江市太浪新材料科技有限公司 | A kind of fire retardant for building organic fire prevention calking |
| CN107805391A (en) * | 2017-09-28 | 2018-03-16 | 公安部四川消防研究所 | A kind of silicon rubber fire retardant module and preparation method thereof |
| CN107902976A (en) * | 2017-09-28 | 2018-04-13 | 公安部四川消防研究所 | A kind of environmental protection fire retardant module and preparation method thereof |
| CN110760193A (en) * | 2019-11-20 | 2020-02-07 | 河南东风电力工程有限公司 | Organic fireproof blocking material |
| CN112961500A (en) * | 2021-03-18 | 2021-06-15 | 广州德海高分子材料科技有限公司 | Non-solidified type sealing fireproof moistureproof silica gel mud and preparation method thereof |
| CN114907054A (en) * | 2022-04-02 | 2022-08-16 | 北京交通大学 | Non-solidified fireproof plugging silica gel mud and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1260324C (en) | 2006-06-21 |
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| 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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SICHUAN TIANFU FIRE MATERIAL CO.,LTD. Assignor: SICHUAN FIRE Research Institute OF MINISTRY OF PUBLIC SECURITY Contract fulfillment period: 2008.1.10 to 2015.12.31 Contract record no.: 2009510000046 Denomination of invention: Organic fireproofing plugging Granted publication date: 20060621 License type: Exclusive license Record date: 20090917 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.1.10 TO 2015.12.31; CHANGE OF CONTRACT Name of requester: SICHUAN TIANFU FIREPROOFING MATERIALS CO., LTD. Effective date: 20090917 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |