CN1057985A - Waste tyre regenerated rubber and technology for making rubber boat - Google Patents
Waste tyre regenerated rubber and technology for making rubber boat Download PDFInfo
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- CN1057985A CN1057985A CN90104683A CN90104683A CN1057985A CN 1057985 A CN1057985 A CN 1057985A CN 90104683 A CN90104683 A CN 90104683A CN 90104683 A CN90104683 A CN 90104683A CN 1057985 A CN1057985 A CN 1057985A
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- Prior art keywords
- rubber
- adhesive
- antioxidant
- cut
- boat
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 27
- 238000005516 engineering process Methods 0.000 title abstract description 7
- 239000010920 waste tyre Substances 0.000 title abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 19
- 230000001070 adhesive effect Effects 0.000 claims description 19
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 12
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 11
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- 239000011787 zinc oxide Substances 0.000 claims description 10
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 239000003502 gasoline Substances 0.000 claims description 7
- 235000021355 Stearic acid Nutrition 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 238000013329 compounding Methods 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 6
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 6
- 239000008117 stearic acid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008929 regeneration Effects 0.000 claims description 5
- 238000011069 regeneration method Methods 0.000 claims description 5
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 4
- REQPQFUJGGOFQL-UHFFFAOYSA-N dimethylcarbamothioyl n,n-dimethylcarbamodithioate Chemical compound CN(C)C(=S)SC(=S)N(C)C REQPQFUJGGOFQL-UHFFFAOYSA-N 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000012188 paraffin wax Substances 0.000 claims description 4
- 239000011297 pine tar Substances 0.000 claims description 4
- 229940068124 pine tar Drugs 0.000 claims description 4
- 238000005987 sulfurization reaction Methods 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 206010013786 Dry skin Diseases 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000010074 rubber mixing Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- 229920000459 Nitrile rubber Polymers 0.000 claims 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 238000010008 shearing Methods 0.000 claims 1
- 239000011152 fibreglass Substances 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000009360 aquaculture Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000013505 freshwater Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract 2
- 230000007797 corrosion Effects 0.000 abstract 2
- 244000144974 aquaculture Species 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
- 239000006229 carbon black Substances 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 210000003038 endothelium Anatomy 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000006235 reinforcing carbon black Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006234 thermal black Substances 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Laminated Bodies (AREA)
Abstract
The present invention belongs to the field of rubber ship making technology.
The waste tires are greatly increased in the society, and the problem of waste utilization and waste utilization is brought forward. Meanwhile, small ships for offshore and freshwater aquaculture operation and inland river transportation in China are now wood, plastic, glass fiber reinforced plastic and steel hull ships. The price is high, the plastic ship is brittle, and the welding line strength is low. The glass fiber reinforced plastic boat has poor stability and is easy to abrade and leak fibers. Steel-shelled ships are susceptible to corrosion. The rubber plate has high shear strength and wide application; the rubber boat is firm and durable, corrosion-resistant, collision-resistant, soaking-resistant, good in stability, large in safety factor, free of annual repair and leakage repair, easy to store, long in service life, simple in production process, low in investment and quick in effect.
Description
The invention belongs to damaged tire regeneration rubber and make the rubber boat technology.
China coastal waters, freshwater aquiculture operation and the little type ship of inland water transport, tradition is habitual mostly is wooden ship.Make by high-quality timber, because the timber shortage, the price height, the life-span is short and the annual leakproof workload of repairing is big, existing now plastics ship, ferry glass reinforced plastic boat and steel ship or the like.Their common drawback is that price is very high, and in addition, plastics ship embrittlement, particularly winter is even more serious, and cut shipwreck accident easily takes place.And weld seam is difficult to reach give and decides intensity; The ferry glass reinforced plastic boat poor stability, easy shipwreck during operation, and easily mill leaks glass fibre, infringement skin; The steel ship disadvantage is that etching problem is difficult to solve.
In order to make use of waste and old articles, make sheet rubber and the inexpensive special development of rubber boat the present invention.
Along with the development of transportation, so external input the old tire quantity of scrapping is heightened, the present invention is as raw material, regeneration sheet rubber and make ship, the rubber slab shear strength can reach 20kg/cm
2More than can be widely used in every field, realize twice laid.Shipbuilding can be saved a large amount of high-quality timber again, and the ship cost is low, and is more sturdy and durable than wooden boat, do not corrode, be not afraid of collision, be not afraid of sea water immersion, good stability, safety coefficient is big, do not need annual place under repair mending-leakage, long service life (can reach more than 10 years) can be installed small-sized driving machine.Simple, the small investment of production technology of the present invention and equipment, instant effect, the adaptation of product is strong, not influenced by regional extraneous weather conditions etc.
The technological process of production of the present invention is as follows: 1, break tire, 2, shear stratiform, 3, polishing and cleaning, 4, drying, 5, brushwork adhesive, 6, constant temperature sulfuration synthetic plate, 7, shear required form, 8, interface is handled, and 9, the brushing cold adhesive, 10, dress up hull.
Producing the concrete technology of sheet rubber is: junked tire is broken, remove the thick rubber part on wire loop and the tyre surface, be cut into the tire leaf of several millimeters (about 6mm) thick lamella gulf song then, can shear the fritter of tens centimetres of (as 40-50cm) wide tens centimetres (as the 20-25cm) that grow up.Every fritter periderm four limits are cut into 45, keep thickness to equate.All contact-making surfaces that will be bonding break into uniform matsurface with fabric disc.Send in 45-50 ℃ the drying box, dry more than eight hours, brush No. 1 adhesive (latices) then, the prescription of this adhesive is (mass ratio): smoked sheet 100, Sulfur 26, zinc oxide 5, magnesia 2, stearic acid 3.9, gas carbon black 41, pine tar 5, paraffin wax 1.2, antioxidant D 1.5, antioxidant A 0.5, altax 0.7, accelerant N OBS0.8, TM monex TD0.15, time spent is cut into little with adhesive, with 120
#Gasoline (is to cooperate at 1: 4 by adhesive and gasoline weight ratio) soaked 3-4 days, brush once back is brushed adhesive one time No. 1 after waiting the glue face tack-free again, keep flat one deck (about 0.5-1mm of thickness then between the bonding plane again, decide on the situation of polishing flat) this adhesive, can and be connected into required form by the design multilayer, its specification can be long 100cm, wide 50cm, thick several centimetres.Interface (edge) prolongs 10cm, and thickness is half of whole thickness, so that further and be connected into type.Whole two sides are coated No. 2 glue (crust light face glue) and No. 3 glue (endothelium light face glue) respectively.Thickness can be 0.5-1mm.Wherein No. 2 glue prescriptions are (mass ratio): butyronitrile rubber 100, sulphur 1.5, zinc oxide 5.0, stearic acid 1.0, thermal black 75, captax 1.5, TM monex TD0.5, No. 3 glue prescriptions are (mass ratio): smoked sheet 100, reclaimed rubber 80, sulphur 2.7, captax 0.95, zinc oxide 5, stearic acid 3.5, gas carbon black 25, semi-reinforcing carbon black 10, pine tar 5, paraffin wax 1, antioxidant A 1, antioxidant D 1.Then go up vulcanizer and carry out the constant temperature heat cure.Vulcanizer can be welded into the mould of hollow jacket with steel plate, can do growth 120cm, wide 60cm, the thick 5cm in upper end, lower end two of the cavity chucks (being symmetric figure) by the one side flaring wide 20cm in bottom of 40cm place.The hole, garden that diameter is 3cm is left in the upper end, as the hand-hole steam vent of holding concurrently.Reinforce every tens centimetres of welding one reinforcing bars or angle steel in the every chuck mould, make its integral body can bear 30kg/cm
2Above pressure.Offset plate above-mentioned and that be connected into shape is inserted and put between two chucks, be forced into 20-30kg/cm in modes such as spirals
2This vulcanizer is placed on adds on the pipestill for heat carrier at (big end down), (the solid NaOH of 58% part of weight is dissolved in the water of 42% part of weight to add NaOH solution by the upper end hand-hole, constantly be stirred to dissolving fully), add pipestill for heat carrier with hair-dryer control and be heated to the NaOH boiling, observe the upper end steam vent and maintain micro-steam discharge.This promptly utilizes NaOH azeotropic liquid to be the sulfuration of heat carrier heated at constant temperature, and temperature can be 142 ℃-152 ℃, and cure time can be at 2-5 hour.Because of solute does not consume, only need with the densimeter inspection, suitably moisturizing gets final product.
Employing constant temperature boiling solution is that the advantage of thermal conductor is not need high-pressure boiler and pipe-line equipment, and equipment investment is few, less energy consumption.The infrastructure device floor space is little, does not need tall and big factory building.Free from environmental pollution, solute does not consume, and only needs regular replenishment moisture content to get final product, and is nontoxic.Do not need instrument, simple to operate.Heating process is carried out under normal pressure, production safety.
This vulcanizer working face also can be made other planes or three-dimensional shape as required, as banded rectangular shaped etc., can be made into length overall 40cm, wide 10cm, thick 1cm, right angle rubber slab.(right angle reinforces and mends skin).
The technology of assembling rubber boat is: the rubber that vulcanizates is cut into definite shape by designing requirement, the monolithic of certain size specification.For example shipboard face and hull bottom are also block-shaped, the captain can be 5 meters, peripheral junction is broken into uniform matsurface with fabric disc, put into 45 ℃ of-50 ℃ of drying box inner dryings 24 hours, with No. 4 adhesives of junction brush, (cold adhesive) its prescription is (mass ratio): (A) neoprene 100, zinc oxide 5, magnesia 4, calcium carbonate 100, ethyl acetate 36, antioxidant D 2, benzene 36, gasoline 120
#72, acetone 36, (B) lek are received and are accounted for 10～12% of above-mentioned total amount.(with neoprene CH
2-CH=CCl-CH
2On mixing roll, plasticated 5 minutes, and added MgO, CaCO then successively
3 
, ZnO etc. carries out mixing.Melting temperature remains on 30～40 ℃, and compounding ingredient must be even with chloroprene rubber mixing after adding, and could add a kind of compounding ingredient in back.Neoprene and various compounding ingredient through 30 minutes mixing after, roll into thin slice, it is standby to be cut into small pieces.With mixing uniform film and gasoline, ethyl acetate, benzene, acetone are put in the peptizer jointly, dissolving in 40 ℃ of continuous stir about 2-3 hours evenly.The lek that during use neoprene adhesive is added 10-12% receive be mixed even after brush coating at once).Secondary such as brush grade again after doing for the first time, carry out when treating microviscosity bonding, and with little
Urgent.Reality is necessarily closed by ragged edge portion.Reinforce apart from usefulness diameter 5mm half knob screw every 20-30cm at the gummed place as required.Inside and outside head of screw seals with film.Shipboard and hull bottom bond site adopt 90 ° of angles to add and mend the pico farad adhesion technique.Ship is inside and outside mends the bonding reinforcing of skin to using the right angle.(cold joint place shear strength is greater than 3kg/cm
2), the wooden or angle steel keel of 3-4 bar is installed at last.
Claims (6)
1, a kind of method of damaged tire regeneration sheet rubber is characterized in that: damaged tire is broken, remove wire loop and thick rubber part, be cut into thick several millimeters, the fritter that length and width is tens centimetres, edge shearing angle at 45, all bonding planes break into the even roughness face with fabric disc.The drying box inner drying of sending into 45 °-50 ℃ is more than eight hours.Brush adhesive then No. 1, brush once again after waiting to do.And between bonding plane, put this adhesive of the about 0.5-1mm of a bed thickness, and be shaped by the splicing of design multilayer, can long 100cm, wide 50cm, thick several cm, the long 10cm in edge place, thickness is half.Whole two sides are coated with No. 2 glue and No. 3 glue respectively.Thickness can be 0.5-1mm, then goes up vulcanizer and carries out the constant temperature sulfuration that azeotropic liquid NaOH is a heat carrier.Pressure 20-30Kg/cm
2, 142 ℃-152 ℃ of temperature, time 2-5 hour.
2, according to claim 1, the prescription that it is characterized by described No. 1 adhesive is (mass ratio): smoked sheet 100, Sulfur 26, zinc oxide 5, magnesia 2, stearic acid 3.9, gas-produced black 41, pine tar 5, paraffin wax 1.2, antioxidant D 1.5, antioxidant A 0.5, altax 0.7, accelerant N OBS0.8, TM monex TD0.15.Time spent is cut into little with adhesive, with 120
#Gasoline cooperated by 1: 4, soaked 3-4 days.No. 2 glue prescriptions are (mass ratio): butadiene acrylonitrile rubber 100, sulphur 1.5, zinc oxide 5.0, stearic acid 1.0, thermals 75, captax 1.5, TM monex TD0.5.No. 3 glue prescriptions are (mass ratio): smoked sheet 100, reclaimed rubber 80, sulphur 2.7, captax 0.95, zinc oxide 5, stearic acid 3.5, gas-produced black 25, semi-reinforcing hydrocarbon black 10, pine tar 5, paraffin wax 1, antioxidant A 1, antioxidant D 1.
3, by claim 1, it is characterized by described azeotropic liquid NaOH is the sulfuration of heat carrier constant temperature, is that the NaOH with 58% part of weight is dissolved in 42% water, is heated to boiling in the vulcanizer of the cavity of packing into and keeps vulcanizing this state under.
4, a kind of method of making rubber boat with the regeneration sheet rubber, it is characterized by: the monolithic that the rubber that vulcanizates is cut into the certain size definite shape by designing requirement, as pressing 5 meters long, cut the also block-shaped of shipboard face and hull bottom, peripheral junction is broken into uniform matsurface with fabric disc, put into 45 ℃ of-50 ℃ of drying box inner dryings 24 hours, with junction brush No. 4 adhesives (cold adhesive), brush once again after doing, carry out bonding when treating microviscosity, and urgent with hand hammer, reality is necessarily closed by attention limit portion, reinforces with diameter 5mm half knob screw every 20-30cm in the bonding place, inside and outside head of screw seals with film, shipboard and hull bottom bond site adopt 90 ° of angles to add and mend the skin adhesion technique, and interior external application perpendicular type is mended the bonding reinforcing of skin.Wooden or the angle steel keel of 3-4 bar is installed at last.
5,, it is characterized by described No. 4 adhesive formulas and be (mass ratio): (A) neoprene 100, zinc oxide 5, magnesia 4, calcium carbonate 100, ethyl acetate 36, antioxidant D 2, benzene 36, gasoline 120 by claim 4
#72, acetone 36, (B) Ke Liena account for the 10-12% of total amount.
6, by claim 5, the processing procedure that it is characterized by No. 4 cold adhesives is with neoprene CH
2-CH=CCl-CH
2On mixing roll, plasticated 5 minutes, and added MgO, CaCO more successively
3 
, ZnO etc. carries out mixingly, melting temperature is 30 °-40 ℃, compounding ingredient must be even with chloroprene rubber mixing after adding, and could add a kind of compounding ingredient afterwards.Neoprene and various compounding ingredient through 30 minutes mixing after, roll into thin slice, be cut into small pieces, put itself and gasoline, ethyl acetate, benzene, acetone in the peptizer jointly, dissolving in 40 ℃ of continuous stir about 2-3 hours evenly, the lek that adds 10-12% before the use is received to be mixed and is got final product after even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90104683A CN1057985A (en) | 1990-07-09 | 1990-07-09 | Waste tyre regenerated rubber and technology for making rubber boat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90104683A CN1057985A (en) | 1990-07-09 | 1990-07-09 | Waste tyre regenerated rubber and technology for making rubber boat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1057985A true CN1057985A (en) | 1992-01-22 |
Family
ID=4878681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90104683A Pending CN1057985A (en) | 1990-07-09 | 1990-07-09 | Waste tyre regenerated rubber and technology for making rubber boat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399532A (en) * | 2010-09-10 | 2012-04-04 | 宝山钢铁股份有限公司 | Quick blocking agent and preparation method thereof |
-
1990
- 1990-07-09 CN CN90104683A patent/CN1057985A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399532A (en) * | 2010-09-10 | 2012-04-04 | 宝山钢铁股份有限公司 | Quick blocking agent and preparation method thereof |
| CN102399532B (en) * | 2010-09-10 | 2014-01-22 | 宝山钢铁股份有限公司 | Quick blocking agent and preparation method thereof |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |