CN100478296C - Heat insulating granular polystyrene material for roof and its prepn process - Google Patents
Heat insulating granular polystyrene material for roof and its prepn process Download PDFInfo
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- CN100478296C CN100478296C CNB2006100873681A CN200610087368A CN100478296C CN 100478296 C CN100478296 C CN 100478296C CN B2006100873681 A CNB2006100873681 A CN B2006100873681A CN 200610087368 A CN200610087368 A CN 200610087368A CN 100478296 C CN100478296 C CN 100478296C
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- lagging material
- acidify magaldrate
- acidify
- additive
- polystyrene
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00586—Roofing materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Building Environments (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention discloses one kind of heat insulating material for roof of building and its usage. The heat insulating material is prepared with acidified magnesia as heat insulating material additive in 90-98 weight portions and polystyrene grain in 2-10 weight portions. The heat insulating material as one kind of excellent roof heat insulating material for building has firm inorganic matter binding to roof, high heat insulating effect and high waterproofing effect.
Description
Technical field
The present invention relates to a kind of material of construction, relate in particular to a kind of heat insulating granular polystyrene material for roof and preparation method thereof, belong to building material field.
Background technology
Defective that adopts at present the lagging material of styrofoam, compact substance styrofoam and thermal insulation mortar (cement mixing granular polystyrene) all to exist technically on the insulation market self can't to overcome and part not fully up to expectations.
Styrofoam is the organic materials that extracts from oil.Temperature influence sensitivity, molecule activity are very active.Heat resisting temperature has only 70 ℃, and when experiment recorded 70 ℃, size changing rate reached 5% after 48 hours.Area, Northeast China outdoor temperature in winter is-45 ℃～-20 ℃, and southern area metope in summer temperature can reach 70 ℃～75 ℃.The styrofoam material is subjected to the acute variation of outside air temperature, just can't change by nature to expand and warpage.Above digital proof, warpage, cracking are unavoidably.Use styrofoam to go wrong and be inevitable, the time length that goes wrong depends on the bonding object, selects for use ether of cellulose and vinylformic acid as cohesive body usually, the mixed cement mortar.These three kinds of materials all have aging time and thermal conductivity.Warpage, the cracking that can not stop styrofoam; Also can further aggravate the conduction of temperature.The styrofoam construction is gone up and is adopted rivet firmly to go up wall in addition.This constructional method makes styrofoam and metope produce the hollowing distance.The benefit that has distance is to a certain extent to having stoped the inside conduction of temperature.The problem that faces is, in case the styrofoam warpage, hot and cold air-flow just enters the hollowing distance, becomes hot and cold air-flow storing spot, is stored into certain value, and interior wall just becomes pontic, has destroyed indoor isoperibol.The person's character that can not change styrofoam just can not solve warpage, rimose problem, and also to be the Chinese and foreign department scholar be difficult to the problem of capturing so far using on the styrofoam for this.Main raw material vinylbenzene and the butane produced as styrofoam can produce obnoxious flavoures such as a large amount of benzene and carbon monoxide when burning.In case blaze up, the people sucks this kind obnoxious flavour, just loses self-saving ability, finally gets killed.The living environment of China is quite intensive again, in case produce burning, will cause large-area loss of life and personal injury, and the people are lived in unsafe hidden danger.Polyphenyl is the extract in the oil, and the lagging material of China all adopts styrofoam, Imported oil in a large number, and then cause worldwide rise in oil price; The costliness that also can cause the styrofoam material simultaneously conversely.Cause outside a large amount of loss of foreign exchange, be incubated, cause the insulation plan as a result in the whole nation can't smooth implementation, the insulation policy can't be prosecuted to the end, die on the vine as independent dependence styrofoam.
Thermal insulation mortar only adds the polyphenyl particle by cement and adds caking agent and mix.The thermal conductivity of cement is high to 1-2w/mk, and the parcel thermal conductivity is the granular polystyrene of 0.042-0.043w/mk, and formed cement and polystyrene mortar thermal conductivity is 0.095-0.098w/mk.Show via Shanghai test center of capital construction commission test result, use the thermal insulation mortar thermal conductivity at 0.1-0.2w/mk on the existing market, do not meet the standard of thermal conductivity below 0.06w/mk of national requirements lagging material.Because there is little conduction in the thermal conductivity height of cement between the cement glue.Exist little conduction to be meant that promptly hot and cold air-flow gathers earlier between the cement glue in distance element, cement can also produce certain barriering effect as the filtering net of current when gathering beginning, gathering of certain hour, body of wall stores hot and cold air and reaches certain value, make interior wall become hot and cold pontic, hot and cold air-flow importing is indoor, and it is indoor to cause outdoor hot and cold flow conductance to be advanced, and has finally destroyed the constant temperature of the interior space.
Existing lagging material can not really reach the insulation requirement really.(above Haiti district is an example, and the energy-conservation requirement of secondary reaches 55.6% energy-saving index; The three grades of energy-conservation requirements in Beijing area reach 65%).Along with the standard day by day of the energy-conservation cause of country and perfect, the generally raising of energy-conservation requirement.The energy-conservation requirement regulation of existing Beijing area reaches energy-conservation 65%.Concrete enforcement in the face of this requirement and standard, existing Guan Yong heat preserving exterior wall system, styrofoam, compact substance plate will face the practical problems in technology and the construction: the thermal conductivity of styrofoam is 0.04w/mk, the thermal conductivity of compact substance plate is 0.027-0.029w/mk, though the thermal conductivity of compact substance plate is good, use its Wind-Pressure Resistance value on Highrise buildings just can not be born.The thermal conductivity of cement and polystyrene mortar will reach 65% heat preservation energy-saving index at 0.095-0.098w/mk, thickness with thick to 10 or 15cm.This kind thickness will increase the weight of the bearing capacity of body of wall greatly, and the carrying capacity of buildings is strengthened.Also there is proposition " sandwich " method promptly to use wall on the cement and polystyrene mortar therebetween styrofoam of the right and left 3cm.The problem that occurs at first be both sides the cement and polystyrene mortar can not with the firm combination of styrofoam, cause situation about coming off easily.Body of wall is an inorganics again, and the cement and polystyrene mortar is an organism, and inorganic and organic two kinds of materials can not fine combination, in case come off, will cause casualties, and has great potential safety hazard.
The existing most insulation of roofing all adopts common styrofoam to slap together, and its compressive resistance extreme difference is generally at 3-4kg, frangible easily broken.The workmen staves styrofoam, make a mess of easily during construction.Break-up point is promptly leaked warm spot, has lost heat preservation effect.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of new skin lagging material is provided.
Technical problem to be solved by this invention realizes by following technological approaches:
The lagging material that a kind of buildings roof is used is made up of the component of following weight part: acidify magaldrate lagging material additive 90-98 part, granules of polystyrene 2-10 part;
Preferably, the weight part of each component is: 94.3 parts of acidify magaldrate lagging material additives, 5.7 parts of granules of polystyrene.
Wherein, described acidify magaldrate lagging material additive can be bought by commercial sources and (for example obtain, the trade name that can produce available from Shanghai Yu Chen Technology Co., Ltd is " two weighing apparatus " board lagging material), also can prepare by the following method: take by weighing each component: acidify magaldrate pulvis 52-54% by following weight percent, acidify magaldrate lattice body 25-35%, ultra micro building materials efficient additive 8-12% and vegetable fibre 6-8%; Above each component is mixed uniformly, promptly.The weight percent of above-mentioned each component is preferably: acidify magaldrate pulvis 54%, acidify magaldrate lattice body 30%, ultra micro building materials efficient additive 10% and vegetable fibre 6%.
The preparation method of described acidify magaldrate pulvis is as follows: will contain the magnesium rate and reach 85% above magnesium oxide ore throwing at (5% strength sulfuric acid+95% clear water; The two is a volume ratio) soak in the strong acid solution, carry out sintering after the acidifying, make pulvis and be the acidify magaldrate pulvis.
The preparation method of described acidify magaldrate lattice body is as follows: will contain the magnesium rate and reach 85% above magnesium oxide ore throwing at (35% strength sulfuric acid+65% clear water; The two is a volume ratio) soak in the strong acid solution, carry out crystallization by 180 ℃ of reactors after the acidifying, produce acidify magaldrate lattice body.
Described ultra micro building materials efficient additive is that the patent No. is the disclosed ultra micro building materials of ZL200310113325.2 patent efficient additives, concrete, described ultra micro building materials efficient additive comprises modified-cellulose 40-60 weight part, water-ground limestone 20-30 weight part, the vegetable-protein glue of material 20-30 weight part and 2-8 weight part, wherein, described modified-cellulose is selected from methyl cellulose ether, the hydroxyethyl ether Mierocrystalline cellulose, ethyl cellulose, Natvosol, carboxymethyl cellulose, hydroxypropylcellulose or their mixture; Described material is selected from silicon-dioxide, silicate, is the mineral of main component or their mixture (drawing from the patent No. is the content that the claim 1 in claims in the Granted publication of ZL200310113325.2 is put down in writing) with silicate.
Described vegetable fibre can be any one vegetable fibre, for example is straw, straw, cotton stalk, perhaps with the resulting vegetable fibre in carton making beating back, is preferably cotton stalk fiber.
Acidify magaldrate itself is a pulvis, and acidify magaldrate, acidify magaldrate lattice body and ultra micro building materials efficient additive synthesize fabulous lapping, the parcel granules of polystyrene, and granules of polystyrene is fabulous lagging material, thermal conductivity is 0.042w/mk.Granules of polystyrene solves the city white pollution and is converted into the city lagging material from the recycling to urban waste lunch box and packing used foamed plastics.
Acidify magaldrate adds ultra micro building materials efficient additive, and ultra micro building materials efficient additive increases force of cohesion with the volatilization of water molecules, strengthens intensity, and reduced volume forms the gluing inclusion with acidify magaldrate.Mix a spot of vegetable fibre of people in acidify magaldrate gluing inclusion, acid group enters into vegetable fibre, has guaranteed the without putrefaction of fiber, and the acidity of the acidify magaldrate that neutralized simultaneously makes whole material be modified as neutrality.
Ultra micro building materials efficient additive in the lagging material has extremely strong perviousness, scrapes in the slurry process at base, and ultra micro building materials efficient additive penetrates into body of wall, and as the rivet lock on the wall, material forms combining of no interface with body of wall.In addition, heat preservation slurry does not fire for 1000 ℃, in case fire appears in the room, more can not spread, feed through to other rooms.The body of wall soundproof effect is a first class, has stopped the noisy blast of whistle on the road, can be the resident and builds peace and quiet, comfortable, safe, the environment that it's like spring all the year round.
Acidify magaldrate lattice body is glassy crystal (Fig. 1), and molecular weight can be melted into water rapidly less than water.The lattice body is as the crystalline substance of magnesium oxide and magnesium chloride knot lattice, but have do not disperse, reductive strong hardness not.Mineral molecule with a kind of excellent stability carries out firmly the extremely strong molecule of a kind of activity.Original subalkaline positively charged ion is converted into negatively charged ion by acidity, both are combined into stable phase and melt body, again by the brilliant connection of solid, formed preliminary brilliant knot in 3 days, brilliant knot lattice were finished substantially in 7 days, along with the prolongation of time, the lattice body is progressively strengthened, and makes the intensity of acid lattice body reach the intensity and the hardness of silicate cement.
Acidify magaldrate lagging material additive has powerful force of cohesion and good resistance temp effect,, protects organic rerum natura granular polystyrene not contact with hot and cold air-flow with the granular polystyrene parcel within it, has delayed the aging time of granular polystyrene.The heat-resistant stable of acidify magaldrate lagging material additive is very good, and 1700 ℃ of molecular structures of high temperature do not play any variation.Granular polystyrene burning will produce a large amount of poison gas, with the acidify magaldrate lagging material additive that does not fire body it is wrapped up, and guarantees that burning-point does not reach granular polystyrene, and whole material becomes and do not fire body.Solved granular polystyrene in case burning produces the drawback of poison gas.The water-intake rate of controlling material simultaneously is in the technical indicator scope.
A kind of method for preparing lagging material of the present invention, step is as follows: take by weighing each raw material by following weight part: acidify magaldrate lagging material additive 90-98 part and granules of polystyrene 2-10 part; After above-mentioned each component mixing, stir promptly.
The application method of lagging material of the present invention: lagging material of the present invention is mixed stirring with 0.9-1 waterproof solution doubly, when doing the roof heat insulation construction, pour on the roof construction layer, chipping, thickness is at 4-6cm; On lagging material of the present invention, smear certain size cement protective layer again, on protective layer, smear one deck waterproof layer (Fig. 2).
Lagging material of the present invention can thoroughly be blocked the conduction of hot and cold temperature, the problem of solved infiltration, leaking, solved the technical problem of global roof heat insulation, it is inorganics and the combining of inorganics that lagging material of the present invention combines with metope, very firm, have simultaneously the insulation and fabulous waterproof action, can stop organism combine with inorganic metope the cracking that produces, come off may and phenomenon.Lagging material of the present invention is used on roofing and the vault insulation project, no matter how large-area roofing or vault, and its slurry base method of scraping makes whole material form an integral body, and its ultimate compression strength is about 4000kg.
Description of drawings
The crystalline phase figure of Fig. 1 acidify magaldrate lattice body.
The construction synoptic diagram of Fig. 2 lagging material of the present invention.
Embodiment
Further describe the present invention by the following examples, it should be understood that these embodiment only are used for the purpose of illustration, never limit the scope of the invention.
Embodiment 1
The preparation of granules of polystyrene: the useless styrofoam that will reclaim is pulverized the back and is crossed 60～80 mesh sieves promptly.
Acidify magaldrate lagging material additive 90kg (trade name of producing available from Shanghai Yu Chen Technology Co., Ltd is " two weighing apparatus " board lagging material) and granules of polystyrene 10kg are mixed, promptly.During application, add 90kg waterproof liquid, mix; Pour on the roof construction layer, chipping, thickness can be smeared 5cm cement protective layer simultaneously again at 4cm on lagging material of the present invention, smear one deck waterproof layer on protective layer.
After testing, the heat-insulating property parameter of lagging material of the present invention sees Table 1.
The heat-insulating property parameter of table 1 lagging material of the present invention
| Interventions Requested | Test value | Individual event is judged |
| Thermal conductivity w/mk | 0.045 | Qualified |
| Heat storage coefficient w/mk | 0.095 | Qualified |
Embodiment 2
The preparation of granules of polystyrene: the useless styrofoam that will reclaim is pulverized the back and is crossed 60～80 mesh sieves promptly.
Acidify magaldrate lagging material additive 90kg (trade name of producing available from Shanghai Yu Chen Technology Co., Ltd is " two weighing apparatus " board lagging material) and granules of polystyrene 10kg are mixed, promptly.During application, add 100kg waterproof liquid, mix; Pour on the roof construction layer, chipping, thickness can be smeared 5cm cement protective layer simultaneously again at 4cm on lagging material of the present invention, smear one deck waterproof layer on protective layer.
After testing, the heat-insulating property parameter of lagging material of the present invention sees Table 2.
The heat-insulating property of table 2 lagging material of the present invention
| Interventions Requested | Test value | Individual event is judged |
| Thermal conductivity w/mk | 0.042 | Qualified |
| Heat storage coefficient w/mk | 0.093 | Qualified |
Embodiment 3
The preparation of granules of polystyrene: the useless styrofoam that will reclaim is pulverized the back and is crossed 60～80 mesh sieves promptly.
Acidify magaldrate lagging material additive 94.3kg (trade name of producing available from Shanghai Yu Chen Technology Co., Ltd is " two weighing apparatus " board lagging material) and granules of polystyrene 5.7kg are mixed, promptly.During application, add 90kg waterproof liquid, mix; Pour on the roof construction layer, chipping, thickness can be smeared 5cm cement protective layer simultaneously again at 4cm on lagging material of the present invention, smear one deck waterproof layer on protective layer.
After testing, the heat-insulating property parameter of lagging material of the present invention sees Table 3.
The heat-insulating property parameter of table 3 lagging material of the present invention
| Interventions Requested | Test value | Individual event is judged |
| Thermal conductivity w/mk | 0.041 | Qualified |
| Heat storage coefficient w/mk | 0.094 | Qualified |
The heat-insulating property simultaneous test of the thermal insulation mortar of test example 1 lagging material of the present invention and cement parcel granular polystyrene
Detected object: lagging material of the present invention; The thermal insulation mortar of cement parcel granular polystyrene.
Detection method: industry standard method.
Detected result sees Table 4.
The heat-insulating property comparative test result of the thermal insulation mortar of table 4 lagging material of the present invention and cement parcel granular polystyrene
| Test item title and unit | The cement and polystyrene mortar | Acidify magaldrate lagging material additive parcel heat insulating granular polystyrene material |
| Thermal conductivity w/mk | 0.065 | 0.045 |
Detected result shows that the thermal conductivity of lagging material of the present invention will be starkly lower than the thermal conductivity that the water mud drum is wrapped up in the thermal insulation mortar of granular polystyrene.
Claims (7)
1. the lagging material that the buildings roof is used is made up of the component of following weight part: acidify magaldrate lagging material additive 90-98 part and granules of polystyrene 2-10 part; Described acidify magaldrate lagging material additive prepares in accordance with the following methods: take by weighing each component by following weight percent: acidify magaldrate pulvis 52-54%, acidify magaldrate lattice body 25-35%, ultra micro building materials efficient additive 8-12% and vegetable fibre 6-8%; Above each component is mixed uniformly, promptly; Described acidify magaldrate pulvis prepares by following preparation method: will contain the magnesium rate and reach magnesium oxide ore more than 85% and throw and to soak in strong acid solution, and carry out sintering after the acidifying, make pulvis and be the acidify magaldrate pulvis; Described strong acid solution is made up of according to 5: 95 volume ratio strength sulfuric acid and water; The preparation method of described acidify magaldrate lattice body is as follows: will contain the magnesium rate and reach 85% above magnesium oxide ore and throw and soak in strong acid solution, and carry out crystallization by 180 ℃ of reactors after the acidifying, and produce acidify magaldrate lattice body; Described strong acid solution is made up of according to 35: 65 volume ratio strength sulfuric acid and water; Described ultra micro building materials efficient additive comprises modified-cellulose 40-60 weight part, water-ground limestone 20-30 weight part, the vegetable-protein glue of material 20-30 weight part and 2-8 weight part, wherein, described modified-cellulose is selected from methyl cellulose ether, the hydroxyethyl ether Mierocrystalline cellulose, ethyl cellulose, Natvosol, carboxymethyl cellulose, hydroxypropylcellulose or their mixture; Described material is selected from silicon-dioxide, silicate, is the mineral of main component or their mixture with silicate.
2. according to the lagging material of claim 1, it is characterized in that the weight part of each component is: 94.3 parts of acidify magaldrate lagging material additives, 5.7 parts of granules of polystyrene.
3. according to the lagging material of claim 1, it is characterized in that the weight percent of described each component of acidify magaldrate lagging material additive is: acidify magaldrate pulvis 54%, acidify magaldrate lattice body 30%, ultra micro building materials efficient additive 10% and vegetable fibre 6%.
4. according to the lagging material of claim 1, it is characterized in that the preparation method of described granules of polystyrene is as follows: the useless styrofoam that will reclaim is pulverized the back and is crossed 60～80 mesh sieves promptly.
5. method for preparing claim 1 lagging material: take by weighing each raw material by following weight part: acidify magaldrate lagging material additive 90-98 part and granules of polystyrene 2-10 part; After above-mentioned each component mixing, stir promptly.
6. the application of the lagging material of claim 1 comprises: stirs after just the described lagging material of claim 1 and 0.9-1 waterproof solution is doubly mixed, pours on the roof construction layer, and chipping, thickness is at 4-6cm.
7. according to the application of claim 6, it is characterized in that on the described lagging material of claim 1, smearing one deck cement protective layer again, on the cement protective layer, smear one deck waterproof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100873681A CN100478296C (en) | 2006-06-12 | 2006-06-12 | Heat insulating granular polystyrene material for roof and its prepn process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100873681A CN100478296C (en) | 2006-06-12 | 2006-06-12 | Heat insulating granular polystyrene material for roof and its prepn process |
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| CN101088950A CN101088950A (en) | 2007-12-19 |
| CN100478296C true CN100478296C (en) | 2009-04-15 |
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| CN112554407A (en) * | 2020-12-11 | 2021-03-26 | 浙江恒昌建设有限公司 | Building waterproof device |
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Owner name: WUXI YUCHEN BUILDING ENERGY EFFICIENCY TECHNOLOGY Free format text: FORMER OWNER: SHANGHAI YUCHEN THERMAL INSULATION MATERIALS MARKETING CO., LTD. Effective date: 20120703 |
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Effective date of registration: 20120703 Address after: 214000 Xichang road Jiangsu Wuxi Yanqiao Huishan Economic Development Zone, supporting the district Patentee after: Wuxi Yu Chen building energy saving Technology Co., Ltd. Address before: 201802 Shanghai City, Jiading District Nanxiang Town, North Road 1755 mares tail Lane 25, room 462 Patentee before: Shanghai Yu Chen insulation materials Sales Co., Ltd. |
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