CN1047096A - Foamed body composition, its method for making, by its artificial soil made from and in insulation, purposes on heat insulation - Google Patents
Foamed body composition, its method for making, by its artificial soil made from and in insulation, purposes on heat insulation Download PDFInfo
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- CN1047096A CN1047096A CN 89103094 CN89103094A CN1047096A CN 1047096 A CN1047096 A CN 1047096A CN 89103094 CN89103094 CN 89103094 CN 89103094 A CN89103094 A CN 89103094A CN 1047096 A CN1047096 A CN 1047096A
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Abstract
The invention provides the careful uniform low density of a kind of bubble, uninflammability, high strength, low-cost polyethylene-based foamed body composition and method for making thereof, the artificial soil that the particle of this kind foamed body composition and soil or sandstone mix, the thermal insulation material that this kind foamed body composition is constituted are applied to the heat-insulating method of building surface and use circular article that this kind foamed body composition the makes insulation purposes as fishpond or opening groove.
Description
The present invention relates to a kind of polyethylene-based foamed body composition, its method for making and application thereof.
United States Patent (USP) NO.4 has disclosed the compound method of the polyethylene-based foamed body composition of a kind of low density uninflammability in 477,599, and the compressive strength of the foamed body composition that produces according to this method is greater than 10Kg/cm
2And density is less than 100Kg/m
3The feature of its compound method is at the organic free radical initiator that has added specified quantitative except polyethylene-based resin and inorganic fillings and whipping agent.And its manufacturing course is at first with the polyethylene-based resin of specified quantitative, mineral filler, and whipping agent and organic free radical initiator mix or plate object is made with hot pressing in mixing back on thermocompressor.
Yet,, when making plate object, reality but can pass skewness and make the difference of the material occurrence temperature gradient in hot-die so that the nexine of products obtained therefrom can't obtain on average fine and closely woven air bladder structure according to prescription that above-mentioned patent disclosed and manufacturing course because heat in the dull and stereotyped inner vapor heating of thermocompressor with the top layer bubble is not of uniform size.And when making large-sized product, the size of bubble has bigger difference.Thereby, the characteristic instability of the product of making according to the prescription and the manufacturing course of this patent.
In order to overcome the shortcoming of above-mentioned patent, the contriver studies through great efforts and has found this United States Patent (USP) NO.4, adds specific modification agent again in 477,599 compositions and tranquilizer then can address the above problem.And via adding special modification agent and tranquilizer this moment, also can be without free radical starting agent, thus reduce cost.
The even low density uninflammability of bubble of the present invention, high strength, being characterised in that of low-cost polyethylene-based foamed body composition are included at least a mineral filler that suitable solvent existence mixes polyethylene-based resin (b) 25 to 1500 weight parts of (a) 100 weight parts down; (c) organic free radical of 0 to the 20 weight part agent of having begun; (d) modification agent of 2 to 7 weight parts; (e) whipping agent of 5 to 10 weight parts and (f) compositions such as tranquilizer of 1 to 2 weight part.
In the present invention, used resin composition, mean by polyvinyl chloride, the inferior ethene of polychlorostyrene, polyvinyl chloride copolymer, the multipolymer of the inferior ethene of polychlorostyrene and chlorinatedpolyethylene, but copolymerization be the monomer of polyvinyl chloride and the inferior ethylene copolymer of polychlorostyrene as: ethene, propylene, vinyl acetate between to for plastic, vinylformic acid, acrylate, vinylformic acid, vinyl cyanide, inclined to one side vinyl cyanide partially, arbitrary at least composition of selecting in the vinylbenzene etc. is polymerized.
The filler of any polyethylene-based resin composition in the past, all applicable to the present invention, as: carbonate, vitriol, silicate, phosphoric acid salt, borate, oxide compound and the oxyhydroxide of metals such as calcium, magnesium, aluminium, titanium and zinc, or its hydrate etc., silica, anhydrous silicon salt, talcum, puddled soil, clay etc. all are.These fillers all can use separately or more than two kinds.Its granular size applicatory is quite extensive, should be good by No. 40 mesh to 70 mesh persons only.
The used organic solvent of allotment among the present invention, so long as all can knowing polyethylene-based resin composition employee, as aromatic series hydrocarbon classes such as benzene, toluene, ethylbenzene, dimethylbenzene, chlorobenzenes, as the hydrocarbon of fontanelizations such as ethylene chloride, tri-chlorination ether, tetracol phenixin, as ketones such as acetone, ethyl methyl ketone, hexones.These solvents can separately or mix more than two kinds and to use, and its consumption is preferably at the 30-100 weight percent of polyvinyl chloride resin and mineral filler gross weight.
Used whipping agent among the present invention, commonly used any polyethylene-based resin foamed dose is all applicable.Good especially with general thermolysis pattern, it is as the azoformamide of organic system whipping agent, N, N '-dinitrosopentamethylene tetramine, dinitroso-N, N '-terephthalamide dimethyl ester (N, N '-dinitrose-N, N '-dimethylterephthalic amide), the P-toluene sulfonyl hydrazide, 4,4 '-oxygen two benzol sulfohydrazides, benzene-1,3-disulfonyl hydrazide, terephthalic acid etc., and inorganic be the Sodium Hydrogen Carbonate, ammonium chloride etc. of whipping agent.These whipping agents can separately or mix more than two kinds and use.
Can make the free radical starting agent that foam is used for the present invention, it is free radical starting agent that (a) azo is arranged: two alkyl nitrile of azo for example
(R represents low alkyl group or lower alkyl carboxyl in the formula);
Azo dicyclohexyl nitrile
The azo dibasic acid esters
(wherein R represents rudimentary carbon back); The hyponitrous acid ester
RO-N=N-OR(wherein R represents benzyl or low alkyl group);
The phenylazo triphenyl methane
Phenylazo thiophenyl ether (phyenylazotriphenylmethane)
Phenylazo phenyl amine (phyenylazophenylamine)
The two benzoyls of azo
The tetraalkyl tetrazane
(wherein R represents low alkyl group)
4,4 '-azo is two-the 4-cyanopentanoic acid
(b) thiazoles free radical starting agent: as
Hexichol thiazoleization two sulphur (didenzothiazoledisulfide)
The metal-salt of 2-mercaptobenzothiazole
(wherein M represents zinc or magnesium etc.);
(c) sulfinylamines free radical starting agent: as
N-cyclohexyl-2-bisbenzothiazole base sulfinyl amine
Deng;
(d) thiocarbamoyl type free base initiator; As tetraalkyl thiocarbamoylization two sulphur (tetraalkykthiuramdisnlfide)
(wherein R represents low alkyl group)
Deng;
(e) curing carboxylamine type free base initiator: as
The metal derivative of dialkyldithiocarbamacompositions
(wherein R represents low alkyl group, and M represents zinc or magnesium) etc.
Above-mentioned free radical starting agent can separately or mix more than two kinds and use.Its consumption should also can not use above-mentioned free radical starting agent at the 0-20 of polyethylene-based resin weight percent.
Among the present invention used modification agent specifiable as: styrene monomer, vinyl cyanide, and be good with vinyl cyanide.
Used tranquilizer is stearic salt such as Zinic stearas and lead stearate among the present invention, and is good with lead stearate.
The manufacture method of the uniform low density uninflammability of bubble of the present invention, high strength, low-cost polyethylene-based foaming composition is earlier above-mentioned each powder to be mixed, it is available as mixing roll, superpower mixing machine, kneader, even mixing 40-80 such as closed mixing machine minute.And solvent is to be divided on a small quantity to add to for several times predetermined amount, in mixing process because frictional heat, the temperature of composition can rise to 40 ℃-60 ℃, at this moment, produce free radical if the initiator of interpolation is arranged in the prescription then can make free radical starting agent begin to decompose, make the more compatible raising affinity of resin composition and filler composition impel composition to be homodisperse mixture.And if do not add free radical starting agent in the prescription because the relation of selected specific modification agent among the present invention, resin composition and filler also can be homodisperse mixture.
Then, said mixture is put into thermocompressor at 90 ℃ to 230 ℃ temperature 50-210Kg/cm
2The following heating 40-80 branch of pressure, the expansion of fs can take place in mixture with this understanding.
After having expanded in the fs, cool the temperature to below 15-30 ℃, after the cooling fs foam is taken out, and put into canopy formula stove portion and freely carry out subordinate phase expansion about 40-90 minute in that normal pressure and 90-110 ℃ are following with water cooling.Just finish at this subordinate phase post-foaming that expanded.Leave standstill section after to three hour after foaming is finished,, and reclaim solvent again in 85-110 ℃ of dry 2-5 hour.
The effect of used modification agent comes down to a kind of linking agent and its actuation gear in composition of free radical starting agent is not fully aware of among the present invention, but can infer as follows: because the chemical structure of polyethylene-based resin own is the linear pattern high molecular polymer.When using free radical starting agent in mixing operation, decompose the generation free radical by friction generates heat (temperature rises approximately to 40 ℃-60 ℃), when making polymkeric substance because of the sensitization of formation free radical, because of not having competent linking agent, therefore can't reach fine and closely wovenization of bubble to form the leakage that guiding principle shape structure easily causes the gas (as N, CO etc.) of generation.And the powder coating that filler formed such as lime carbonate also also influences the bubble of product size because of size distribution varies in size, make enough gas coat guiding principle shape structure for the size of stabilise bubbles must have dosing of modification agent, make enough tough chemical bond of generation between polyethylene-based resin and the filler and strong bubble epithelium.
When mixing finishing, the vinyl polymer chain that these are activated and the free radical segment of the filler molecule after the sensitization are coupled mutually, when putting into thermocompressor and be heated to temperature (90 ℃-165 ℃), make free radical starting agent decompose the more freedom base, and filler and resin composition will become more compatible combination.This moment, linking agent formed crosslinkedly, to form tough solid poly epithelium, made the gas of generation be difficult for reveal and form fine and closely woven uniform bubble structure.
In addition, in the modulation process of polyethylene-based resin foamed body composition of the present invention, for the physical strength that improves finished product also can will be strengthened the chemical fibre dimension as glass fibre, asbestos fibre, carbon fiber, boron fibre, addings such as steel fiber.
And, also the waste material of constituent of the present invention can be added in the prescription of the present invention; The ratio of its interpolation is the scope to polyethylene-based resin 0.4 to 1 weight part of 1 weight part.The initiator that produces free radical be needn't add simultaneously and low density and uninflammability high strength, finished product cheaply also can be made.
Below, enumerate two embodiment to further specify the present invention, only must be appreciated that these two embodiment are preferred embodiments of the present invention, and there is no the meaning of any qualification scope of the present invention.
Embodiment 1
The composition weight part
Polyvinyl chloride (PVC) RESINS 100
Lime carbonate 30
Asbestos fibre 2
Azoformamide 2
Azo isobutyronitrile 3
N, N '-dinitrosopentamethylene tetramine 6
Lead stearate 2
Vinyl cyanide 0.3
Toluene 85
In the last example, except solvent toluene, other each compositions are put into mixing roll and were stirred 5 to 10 minutes, then toluene respectively is divided into three addings, add for the first time 50 liters and add stirring 5 to 10 minutes slowly, add for the second time 21 liters and stirred 10 to 15 minutes, add 14 liters for the third time and stirred 10 to 25 minutes, this mixture temperature rises to 40 ℃-60 ℃ and pours in the mould in thermocompressor with 100-210Kg/cm again
2Pressure three sections foaming of heating in following minute, first section 90 ℃ to 120 ℃ * 25 minutes, second section 130 ℃ to 140 ℃ * 25 minutes, the 3rd section 150 ℃ to 165 ℃ * 25 minutes.Again after 70-80 minute cooling, move into baker after the foaming, under normal pressure, finish foaming through 75-85 minute pin second time is bloated with 100 ℃ of-110 ℃ of temperature except that pressing to take out the thermocompressor.In 10 ℃ to 20 ℃ air-conditioning rooms, left standstill 1-3 hour, in 85 ℃-100 ℃ drying machine, heat again and removed residual solvent in 3-5 hour.The product of making is cut into the test piece of certain size.
Example 2
The composition weight part
Polyvinyl chloride (PVC) RESINS 100
Lime carbonate 100
Talcum powder 10
Asbestos fibre 6
Azoformamide 2
N, N '-dinitrosopentamethylene tetramine 8
Lead stearate 2
Vinyl cyanide 5
Toluene 110
The composition of this embodiment is the test piece of making certain size with embodiment 1 identical program.
Comparing embodiment 1
The composition weight part
Polyvinyl chloride (PVC) RESINS 100
(for example, " Geon 121 " of Japanese Geon Co.)
Ground silica 150
Oxide powder and zinc 50
Talcum powder 130
Fibrous magnesium silicate 50
Phenylazo triphenyl methane 48
P-toluene sulfonyl hydrazide 10
Dimethylbenzene 180
Acetone 100
The prescription of this comparing embodiment 1 and this United States Patent (USP) NO.4,477, the embodiment 1 of 599 patents is identical, and according to the test piece that this embodiment 1 identical program is made certain size, only finds in the end must dry about 40 → 48 hours ability remove residual solvent fully in the process.
Then every test is done in the test piece of embodiment 1,2 and comparing embodiment 1 gained, its result is as shown in table 1.
Table 1
Characteristic test project implementation example 1 embodiment 2 comparing embodiments 1
Apparent density (Kg/cm
3) 110 50 40
Ultimate compression strength (kg/cm
2) 15 10 10.3
Bending strength (kg/cm
2) 20 12 10
Thermal conductivity (kccl/mh ℃) 0.03 0.03 0.028
Linear expansivity (* 10
-6) 2.5 0.4 2.3
Water-intake rate (vol%) 1.3 1.3 1.7
Weathering resistance (placing in the open 1 year)
All all do not have the phenomenon that be full of cracks and deterioration take place
Bubble size (mm) 0.2-1.0mm 0.2-1.0mm 1.5-2.5mm
3-5 hour 3-5 hour 40-48 hour time of drying
As shown in Table 1, the product of making according to prescription of the present invention has and United States Patent (USP) NO.4,477, the physical strength that 599 product is identical even above, uninflammability and low density, but it is less and evenly so product quality is more stable, the product fraction defective reduces according to the prepared product bubble of prescription of the present invention.And can reduce cost without the special formulation of initiator.In addition, only must more improve output in 3-5 hour time of drying according to method of the present invention.
Except above-mentioned advantage, the present invention's foamed body composition also can grind back the mixing with soil or sandstone and make a kind of artificial soil with high moisture content save power.The manufacturing of this kind artificial soil is as long as make the sand of particle and 0-80% with 20-100wt% foamed body composition of the present invention, or mixing with soil evenly gets final product, and below with example it is described.
Artificial soil embodiment 1
The foamed body composition of the foregoing description 1 gained is ground into the particle of about 3mm, and the sand of getting this foamed body composition 30kg through pulverizing and 70kg mixes and obtains artificial soil 1.
Artificial soil embodiment 2
The foamed body composition of the foregoing description 1 gained is ground into the particle of about 3mm, and the sand of getting this foamed body composition 50kg through pulverizing and 50kg mixes and obtains artificial soil 2.
Artificial soil embodiment 3
The foamed body composition of the foregoing description 1 gained is ground into the particle of about 3mm, and the sand of getting this foamed body composition 70kg through pulverizing and 30kg mixes and obtains artificial soil 3.
The comparison test of the moisture content that artificial soil of the present invention and sand can keep:
A, test method
Getting the artificial soil 1,2,3 of above-mentioned three embodiment gained and general sand fills at 30cm(long respectively) * 30cm(is wide) * the 30cm(height) groove in, place under free air temperature 28-33 ℃, the environment of humidity 60-100%, be placed on one week of smile of exposing to the sun under the sun, meet rain and then cover to hide rain gear.
B, test-results
Artificial soil 1,2 of the present invention and 3 is found dark 2cm place is anhydrous fully from the surface of groove that 2cm～30cm place then still remains with moisture content downwards in the back of tanning by the sun through a week.Then dark 12cm is anhydrous fully downwards from the surface for the general sandstone of comparing embodiment, and 12 to 30cm then still remain with moisture content.
Sandstone or the soil more general by above-mentioned test artificial soil of the present invention as can be known can keep more moisture content, and can be used as cultivation of plants and the desert is become the oasis, and can improve the soil property of frigid zone soil.
Because the internal structure of foamed body composition of the present invention is that the minute bubbles by many closeds are consisted of and material itself does not absorb water, so light weight can make heat-insulating material, such as plate, sheet, is applied to building surface with heat insulation.
The heat-insulating method of implementing composition of the present invention is also very simple, if will be thus the made thin plate of foamed body composition be fixed on the surface of building, construction is easy, and is easy to maintenance. Fixing means is can solid bonding or all can with screw is fixing.
Come heat insulation by said method, even tan by the sun in the atmospheric temperature more than 30 ℃ in summer, because composition, foam of the present invention is the structure of closed bubble, pyroconductivity only has 0.03Kcal/mh ℃, only has 32 ℃ can fully reach effect of heat insulation so the temperature of building surface is the highest. In addition, composition of the present invention also can be worn into the coatings use that flour adds the surface of directly being used as building in the concrete and can reach heat insulation effect equally.
In addition, insulation for the opening groove of fishpond, Yu Ponds or chemical plant, sphere or the ellipse of being made diameter 5cm to 15cm by foamed body composition of the present invention directly can be placed Yu Ponds, the surface of fishpond or opening groove is to reach the effect of insulation, because the article itself of being made by foamed body composition of the present invention are exactly a kind of good insulation cold insulation material, and have the space not only ventilative but also also very convenient when will put into other objects when placing between opening groove when surface spheroid and the spheroid, and when not doing to need only when insulation is processed it is picked up.
Claims (24)
1, the careful uniform low density uninflammability of a kind of bubble, high strength, low-cost polyethylene-based foamed body composition comprise the adulterant of following ingredients:
(a) polyethylene-based resin of 100 weight parts,
(b) the inanimate matter filler of 25 to 1500 weight parts,
(c) the organic free radical initiator of 0 to 20 weight part,
(d) whipping agent of 5 to 10 weight parts;
(e) modification agent that is selected from styrene monomer, vinyl cyanide of 2 to 7 weight parts, and
(f) 1 to 2 weight part is selected from the tranquilizer of stearates.
2, according to the foamed body composition of claim 1, wherein, polyethylene-based resin includes polyvinyl chloride, the inferior ethene of polychlorostyrene, polyvinyl chloride copolymer, the inferior ethylene copolymer of polychlorostyrene, ethylene chloride, and with aforementioned various resins such as multipolymer at least any.
3, according to the foamed body composition of claim 1, wherein free radical starting agent means from the azo based compound, thiazole compound, and the sulfinyl amine compounds, the thiocarbamoyl compounds reaches middle selections such as dithiocarbamic acid compounds.
4, according to the foamed body composition of claim 1, wherein this whipping agent is selected from by azoformamide, N, N '-dinitrosopentamethylene tetramine, dinitroso-N, N '-terephthalamide dimethyl ester, P-toluene sulfonyl hydrazide, 4,4 '-oxygen two benzol sulfohydrazides, benzene-1, the 3-disulfonyl hydrazide is in the family that terephthalic acid etc. are formed.
5, according to the foamed body composition of claim 1, wherein modification agent is a vinyl cyanide.
6, according to the foamed body composition of claim 1, wherein tranquilizer is a lead stearate.
7, a kind of method of making the careful uniform low density uninflammability of bubble, high strength, low-cost foamed body composition, this method comprise makes following each composition reaction:
(a) polyethylene-based resin of 100 weight parts,
(b) the inanimate matter filler of 25 to 1500 weight parts,
(c) the organic free radical initiator of 0 to 20 weight part,
(d) whipping agent of 5 to 10 weight parts,
(e) 2 to 7 weight parts be selected from styrene monomer, the modification agent of vinyl cyanide, and
(f) 1 to 2 weight part is selected from the tranquilizer of stearates.
8, according to the method for claim 7, wherein, polyethylene-based resin includes polyvinyl chloride, the inferior ethene of polychlorostyrene, polyvinyl chloride copolymer, the inferior ethylene copolymer of polychlorostyrene, ethylene chloride, and with aforementioned various resins such as multipolymer at least any.
9, according to the method for claim 7, wherein, free radical starting agent means from the azo based compound, thiazole compound, and the sulfinyl amine compounds, the thiocarbamoyl compounds, and selected in the dithiocarbamic acid compounds etc.
10, according to the method for claim 7, wherein, whipping agent is selected from by azoformamide, N, N '-dinitrosopentamethylene tetramine, dinitroso-N, N '-terephthalamide dimethyl ester, the P-toluene sulfonyl hydrazide, 4,4 '-oxygen two benzol sulfohydrazides, benzene-1, the 3-disulfonyl hydrazide is in the family that terephthalic acid etc. are formed.
11, according to the method for claim 7, wherein modification agent is a vinyl cyanide.
12, according to the method for claim 7, wherein tranquilizer is a lead stearate.
13, a kind of method of making the plate object of low density uninflammability, high strength, low-cost polyethylene-based foam, this method may further comprise the steps:
(a) the inanimate matter filler of polyethylene-based resin 25 to 1500 weight parts of mixing 100 weight parts in the presence of appropriate solvent, the organic free radical initiator of 0 to 20 weight part, the whipping agent of 5 to 10 weight parts, 2 to 7 weight parts be selected from styrene monomer, the modification agent of acrylonitrile monemer, and the tranquilizer that is selected from stearates of 1 to 2 weight part;
(b) 90 to 230 ℃ temperature, 50 to 210kg/cm
2Pressure under in thermocompressor, with the mixture heating up of gained 40 to 80 minutes to produce the foaming of fs;
(c) be cooled to the fs foam of gained below 15-30 ℃ and under normal pressure and 90 to 110 ℃, carry out the expansion of subordinate phase again;
(d) the taking-up foaming is finished product and was left standstill 1 to 3 hour;
(e) in 85 to 110 ℃ of dryings two to five hours and reclaim solvent.
14, a kind of method of making the plate object of low density uninflammability, high strength, low-cost polyethylene-based foam, this method may further comprise the steps:
(a) in the presence of appropriate solvent, mix: the polyethylene-based resin of 100 weight parts, 40 to the composition of the claim 1 of 100 weight parts through pulverizing waste material, the mineral filler of 25 to 1500 weight parts, the whipping agent of 5 to 10 weight parts, 2 to 7 weight parts be selected from styrene monomer, the modification agent of acrylonitrile monemer, and the tranquilizer that is selected from stearates of 1 to 2 weight part;
(b) 90 to 230 ℃ temperature, 50 to 210kg/cm
2Pressure under in thermocompressor with the mixture heating up of gained 40 to 80 minutes to produce the foaming of fs;
(c) be cooled to the fs foam of gained below 15-30 ℃ and carry out the expansion of subordinate phase again under in 90 to 110 ℃;
(d) take out foaming finished product and leaving standstill 1-3 hour;
(e) in 85 to 110 ℃ of dryings 2 to 5 hours and reclaim solvent.
15, a kind of artificial soil with high moisture content save power by:
A.20-100wt% the particle of the foamed body composition of claim 1 and
B.0-80wt% sand is formed through mixing.
16, according to the described artificial soil of claim 15: wherein, the closed foamed body composition accounts for the 50wt% of this artificial soil, and sand accounts for 50wt%.
17, a kind of heat insulation method comprises that the material that the foamed body composition of claim 1 is made is applied to the heat insulation building surface of needs.
18, according to the heat-insulating method of claim 17, wherein, the density of foamed body composition is 0.01-0.5g/cm
3
19,, be the thin plate that foamed body composition is made puts on buildings in adhesive fixed mode surface according to the heat-insulating method of claim 17.
20,, be to be coated in building surface with having the particle of foamed body composition and mixture that concrete is mixed and made into according to the heat-insulating method of claim 17.
21, a kind of heat preserving method that changes the ventilative area of liquid level comprises and will have insulation, thermal insulating properties and be that the made article of foamed body composition that have of light claim 1 float on liquid level to reach the heat preserving method that can change the ventilative area of liquid level than water.
22, according to the heat preserving method of claim 21, article wherein are circular or oval.
23, according to the heat preserving method of claim 21, it is applied to the insulation of fishpond Huo Yu Ponds.
24, according to the heat preserving method of claim 21, it is applied to the insulation of chemical opening groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89103094 CN1047096A (en) | 1989-05-06 | 1989-05-06 | Foamed body composition, its method for making, by its artificial soil made from and in insulation, purposes on heat insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89103094 CN1047096A (en) | 1989-05-06 | 1989-05-06 | Foamed body composition, its method for making, by its artificial soil made from and in insulation, purposes on heat insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1047096A true CN1047096A (en) | 1990-11-21 |
Family
ID=4854978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89103094 Pending CN1047096A (en) | 1989-05-06 | 1989-05-06 | Foamed body composition, its method for making, by its artificial soil made from and in insulation, purposes on heat insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1047096A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688013B (en) * | 2007-07-03 | 2011-12-28 | 陶氏环球技术公司 | Closed-cell foam with large cell size and high filler content |
| CN104735968A (en) * | 2012-09-27 | 2015-06-24 | 东洋橡胶工业株式会社 | Artificial soil particles, artificial soil aggregates, artificial soil molded body, greening sheet, wall greening panel and gardening blocks using artificial soil molded body |
-
1989
- 1989-05-06 CN CN 89103094 patent/CN1047096A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101688013B (en) * | 2007-07-03 | 2011-12-28 | 陶氏环球技术公司 | Closed-cell foam with large cell size and high filler content |
| CN104735968A (en) * | 2012-09-27 | 2015-06-24 | 东洋橡胶工业株式会社 | Artificial soil particles, artificial soil aggregates, artificial soil molded body, greening sheet, wall greening panel and gardening blocks using artificial soil molded body |
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