CN1273278C - Manufacturing method of solvent-free substrate - Google Patents
Manufacturing method of solvent-free substrate Download PDFInfo
- Publication number
- CN1273278C CN1273278C CN 02158194 CN02158194A CN1273278C CN 1273278 C CN1273278 C CN 1273278C CN 02158194 CN02158194 CN 02158194 CN 02158194 A CN02158194 A CN 02158194A CN 1273278 C CN1273278 C CN 1273278C
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- Prior art keywords
- base cloth
- shoots
- roll extrusion
- base
- plastic cement
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- Expired - Lifetime
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000000758 substrate Substances 0.000 title 1
- 239000004744 fabric Substances 0.000 claims abstract description 102
- 239000000463 material Substances 0.000 claims abstract description 99
- 239000004033 plastic Substances 0.000 claims abstract description 22
- 229920003023 plastic Polymers 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims description 27
- 238000002156 mixing Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 23
- 239000004568 cement Substances 0.000 claims description 19
- 239000004814 polyurethane Substances 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 7
- 239000003086 colorant Substances 0.000 claims description 4
- 150000002440 hydroxy compounds Chemical class 0.000 claims description 4
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- 239000011344 liquid material Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 230000032258 transport Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000011068 loading method Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000004745 nonwoven fabric Substances 0.000 abstract 3
- 239000012458 free base Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 12
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 8
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- 238000005187 foaming Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- WYLIRYQDDKDHLT-UHFFFAOYSA-N CC1=CC=CC=C1C.CC1=CC=CC=C1C Chemical compound CC1=CC=CC=C1C.CC1=CC=CC=C1C WYLIRYQDDKDHLT-UHFFFAOYSA-N 0.000 description 1
- 208000008964 Chemical and Drug Induced Liver Injury Diseases 0.000 description 1
- 206010012289 Dementia Diseases 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 208000005374 Poisoning Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000004126 nerve fiber Anatomy 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
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- 238000006116 polymerization reaction Methods 0.000 description 1
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- 230000000750 progressive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
A process for preparing the solvent-free base material includes such steps as filling the PU plastic material in the non-woven fabric, rolling, delivering, heating for shaping, coating the plastic material on the fibres of non-woven fabric, and combining the non-woven fabric with cloth surface to obtain the liner or shoe pad without high-temp baking oven or immersing.
Description
Technical field
The present invention is relevant with a kind of base material; be meant production method for base material especially; it is poured into the PU plastic cement material utilization mixing arrangement that shoots material on the adhesive-bonded fabric; and via the continuous transport process of predetermined stroke; and the base cloth level that adds in regular turn in processing procedure and thickness finalized the design; make the coating of base material and use solvent in conjunction with passing through, thus can not produce the material that air, water etc. is polluted in addition, with effective protection living environment.
Background technology
The manufacture method of traditional polyurethanes (PU plastic cement) base material, normally handle with wet type and two kinds of method manufacturings of dry type, the wet type manufacturing is that various raw materials and solvent bearing are formed the material that mixes in one or more dipping tanks, guide base cloth again and make its impregnation through material in the dipping tank, and this base cloth introduced in the tank, its surperficial gel is solidified, last, use electric heating drying equipment to give dry the processing this base cloth, to form a base material; And the dry type manufacture method to be manufacture process utilize resin-coated method, coat on the release liners, drying, go up stick with paste after, fit with base cloth again and dry.Its major defect is:
The process that the base material manufacturing of wet type forms has been used a large amount of toxic solvents, very easily cause serious environmental to pollute, and wherein use contains dimethyl formamide (Dimethyl Formamide; Abbreviation DMF) chemical substance, it sucks human body via the skin contact or by lung, all can cause poisoning, so the poison control centre that is considered as tubulation by Environmental Protection Administration is complied with and stipulated that factory must be provided with gas collection equipment, and the processing that utilizes washing distillation and waste gas to reclaim, simultaneously, the monitoring that factory and government also must be at any time and write down its processing procedure is so the processing of its waste gas and waste water is quite wasted time and energy, careless slightly, promptly can cause severe contamination; And use electric heating drying equipment in its processing procedure, also can expend considerable electric power and human resources.
And the base material manufacturing of dry type is to use butanone (methyl ethyl ketone; Abbreviation MEK) chemical substance, it can cause the human body acute toxic hepatitis, if be in this environment for a long time, then can cause the moderate anesthesia of nerve fiber, realize phenomenons such as not clear and amentia, and dimethylbenzene (Xylene) itself has the combustibility of height, can be easily by heat, spark or flame are lighted, very easily send out into fire, so method is to air, water all can pollute, and it also needs to use electric heating drying equipment, and the dealer still can expend considerable electric power and barrel bolt expense, in addition, the manufacture method of tradition base material is used at equipment, all can't utilize its original machinery equipment with foamed plastic, and directly import and do continuous processing in its processing procedure.
At above-mentioned defective, the inventor thinks funiculus through detailed, and the long-pending research and development experience of being engaged in Related product for many years, creates technical scheme of the present invention eventually.
Summary of the invention
Main purpose of the present invention provides a kind of manufacture method of no-solvent type base material, it is that the PU plastic cement material utilization mixing arrangement that shoots material is poured on the base cloth of adhesive-bonded fabric, and via the roll extrusion conveying program, mould processing again through the heating calibrator again, the plastic cement material is coated on the fiber of adhesive-bonded fabric fully, and under the prerequisite of not using solvent to make, adhesive-bonded fabric is combined with cloth cover, reach and save the energy and antipollution purpose.
The object of the present invention is achieved like this: a kind of manufacture method of no-solvent type base material is characterized in that: mainly comprise the following step:
(1) material is exported via a material device, this material device has the charging basket of predetermined number for installing different material respectively, this charging basket is filled with liquid isocyanates polymer, hydroxy compound and colorant, and this charging basket is that the Material control of holding is exported in predetermined close;
(2) this liquid material is to be imported into the mixing arrangement that shoots material, and this mixing arrangement that shoots material is provided with the mixing head that shoots material, and a screw rod is built in this mixing head that shoots material, and makes material by this screw rod rotary action, i.e. moment reaction mixes the back and penetrates;
(3) one base cloth conveying devices are included in preset distance and are respectively provided to the rare first base cloth reel and the second base cloth reel, this first base cloth reel is pulled out a base cloth that is made of adhesive-bonded fabric, cloth or superfine fibre adhesive-bonded fabric, this base cloth is poured into polyurethanes plastic cement material on the base cloth through this mixing arrangement that shoots material, and guide this base cloth to one roll extrusion district, the plastic cement material is coated on the fiber surface of base cloth fully;
(4) one heating calibrators are the rear ends that are arranged at this roll extrusion district, and this calibrator is provided with two conveyer belts of parallel correspondence, and the heat effect again of predetermined temperature is provided, and base cloth and plastic cement material are reached by roll extrusion mould typing again;
(5) one retracting devices are arranged at this calibrator rear side end, and this retracting device is that this base cloth is furled in batches, and loading transports.
The conveyer belt of this heating calibrator is combined into a chain belt with the metallic plate of predetermined number, and is provided with the air admission hole or the electrothermal tube of predetermined number in this conveyer belt, and its heating-up temperature is between 50-100 ℃.
Describe in detail below in conjunction with the preferred embodiment conjunction with figs..
Description of drawings
Fig. 1 is a manufacturing process schematic diagram of the present invention.
Fig. 2 is the cross-section cross-sectional schematic of the mixing arrangement that shoots material of the present invention.
Fig. 3 is the vertical disconnected cross-sectional schematic of the mixing arrangement that shoots material of the present invention.
Fig. 4 is the cross-sectional schematic of feeder of the present invention.
Fig. 5 is the part schematic perspective view of conveyer belt of the present invention.
Fig. 6 is the product section schematic perspective view that the present invention makes.
Fig. 7 is the user mode schematic perspective view of the product made of the present invention.
The specific embodiment
Consult Fig. 1-shown in Figure 7, the device that the manufacture method of no-solvent type base material of the present invention is used includes: shoot material mixing arrangement 20, a base cloth conveying device 30, a heating calibrator 40 and a retracting device 50 of a material device 10, is used in combination, and according to the processing procedure of the following step:
Consult shown in Figure 1, the material device 10 of present embodiment has three charging baskets 11, different materials is housed respectively, first charging basket 11 is filled with the polyurethanes (being called for short PU plastic cement material) of the isocyanates polymer that contains NCO, second charging basket 11 is to be filled with the hydroxy compound that contains OH, the 3rd 11 of charging basket is filled with colorant, and the top of this charging basket 11 is equipped with a motor 12, this motor 12 is to extend an agitator 13 to this charging basket 11, and the bottom of this charging basket 11 is provided with a certain amount of pump housing 14, make the liquid material of depositing in this charging basket 11 be controlled in predetermined close output, this material device 10 also can be provided with a foaming catalyst 15 in addition, for promoting foaming effect, for example nitrogen of gas, gas, water or physical foaming agent.
Cooperate and to consult Fig. 2-shown in Figure 4, material is to shoot material by the mixing arrangement 20 that shoots material, this mixing arrangement 20 that shoots material is provided with the mixing head 21 that shoots material, and a screw rod 211 is built in this mixing head 21 that shoots material, penetrate via a fill orifice 212 for mixing of materials, side laterally runs through respectively and is provided with four pivot holes 213 around this mixing head 21 of shooting material, wherein three pivot holes 213 are to be respectively arranged with three feeders 22, and another pivot hole 213 is to articulate with this foaming catalyst 15, the top of this feeder 22 has a feeding mouth 221, and a conduit 222 is that this charging basket 11 is connected with this feeding mouth 221, when material is entered by feeding mouth 221, then be stored in the room 223, and with the action of a piston 224, make a control lever 225 by these piston 224 interlocks, the front end of this control lever 225 is a resistance material pin 226, and this feeder 22 is provided with a material shooting hole 227, when material is penetrated by this material shooting hole 227, this resistance material pin 226 also is subjected to this piston 224 effects, supports and terminates in this material shooting hole 227, to finish the action that shoots material of this device 22 that shoots material, and the foaming effect of this foaming catalyst 15 of process, make foamed material hang down to flowing and release by this screw rod 211, as shown in Figure 1, to form PU plastic cement material 16.
Cooperation is consulted shown in Figure 1 again, one base cloth conveying device 30 is to be arranged at this mixing arrangement 20 belows that shoot material, this base cloth conveying device 30 is to be provided with one first base cloth reel 31 in front end, the roller 33 of these first base cloth reel, 31 pile warp predetermined numbers, first base cloth 61 that this first base cloth reel 31 is provided with, and pull out a base cloth 32 from this first base cloth 61, this base cloth 32 is by adhesive-bonded fabric, cloth or superfine fibre adhesive-bonded fabric constitute, this base cloth 32 continues output through fill orifice 212 belows of this mixing arrangement 20 that shoots material again, these fill orifice 212 belows are provided with parallel two rollers 34 arranged side by side, this roller 34 is to pass with the pre-determined tilt angle for this base cloth 32, and the rear of this roller 34 also is provided with the roller 33 of predetermined number, to guide this base cloth 32 to first roll extrusion districts 35, this first roll extrusion district 35 is provided with two up and down relatively and the roller 351 that connects, and with a motor 352 outputting powers, and the back side top in this first roll extrusion district 35 is provided with one second base cloth reel 36, this second base cloth reel 36 is provided with one second base cloth 62 in addition, this second base cloth 62 is to adopt a cloth cover in present embodiment, this first roll extrusion district 35 accepts two base cloths 32 that this first base cloth reel 31 and the second base cloth reel 36 are exported, make this two base cloth 32 be driven output by these second wheel 351 roll extrusion, the rear side in this first roll extrusion district 35 is provided with one second roll extrusion district 37, this second roll extrusion district 37 is provided with two up and down and the roller 371 that connects equally, for a motor 372 actions, and the below side in this second roll extrusion district 37 also is provided with one the 3rd base cloth reel 38, the 3rd base cloth reel 38 is provided with one the 3rd base cloth 63 in addition, the 3rd base cloth at present embodiment also adopts a cloth cover, so that this two base cloth 32 combines with base cloth 32 roll extrusion that the 3rd base cloth reel 38 is exported again.
Cooperate and consult Fig. 1 and shown in Figure 5, the rear end of this base cloth conveying device 30 more is provided with a heating calibrator 40, this heating calibrator 40 include parallel up and down relatively and two conveyer belts 41 that connect, these conveyer belt 41 set chain belts are that the metallic plate 412 with majority is cascadedly combined, and be provided with the vapours air admission hole 413 or the electrothermal tube of predetermined number in the forward and backward two sides of this conveyer belt 41, make this conveyer belt 41 have roll extrusion and the heating effect of moulding again, and this base cloth 32 evenly is adjusted to predetermined thickness once more.
At last, these heating calibrator 40 rear side end have a retracting device 50, as shown in Figure 1, this retracting device 50 is provided with one and furls cylinder 51, makes this furl the transmission of cylinder 51 by a motor 52, and this base cloth 32 is furled, transport to make things convenient for goods to load, and this base cloth 32 more can be used according to the demand that manufactures a product, and as shown in Figure 6, the base cloth 32 of present embodiment is made the shoe-pad 60 with predetermined buffer effect for cutting off.
More than be the general introduction of structure, position and the interconnected relationship of each member of the present invention, then, again with the action of each assembly of the present invention and expect that the effect of reaching states.
The material device 10 of the embodiment of the invention, it is that charging basket 11 by predetermined number holds the isocyanates polymer, the liquid material of hydroxy compound and colorant, and export material to the mixing arrangement 20 that shoots material via the quantitative pump housing 14, material is mixed in the mixing head 21 that shoots material, be that the moment reaction forms PU plastic cement material 16, infusate flow let droop again on the base cloth 32 that this first base cloth reel 31 pulls out, this base cloth 32 is to favour between two rollers 34 arranged side by side with predetermined tangential angle, wherein this roller 34 near this first base cloth reel 31 is to depend on for this base cloth 32 to detour, and another roller 34 arranged side by side is the PU plastic cement material 16 average roll extrusion with this base cloth 32, this PU plastic cement material 16 is coated on the fiber of this base cloth 32 fully, promptly make plastic cement material 16 be the gel unhardened state along with normal temperature, and by this first, two roll extrusion districts 35,37 roll extrusion, and respectively cooperate second, three base cloth reels 36,38 bonding, utilize PU plastic cement material 16 good bonding force and this base cloths 32 to be combined into one.
In addition, during these base cloth 32 these conveyer belts 41 of process, the effect of co-administered roll extrusion and heating again makes the processed once more typing that is treated to predetermined thickness of this base cloth 32, and is last, and this base cloth 32 is rolled into type with these retracting device 50 bundles, reaches the effect of conveniently transporting.
This base cloth 32 is to choose various cloth cover or adhesive-bonded fabric according to need, in the present embodiment, first base cloth 61 is to use the adhesive-bonded fabric base material, second and third base cloth 62,63 then uses general cloth cover, and therefore, the foaming mixed liquor combines with the adhesive-bonded fabric impregnation, and it is bonding with general cloth cover, so that this roller 351,371 is at the cloth cover that contains PU plastic cement material 16, in addition the uniform force application roll extrusion is handled, and this first roll extrusion district 35 and two roll extrusion districts 37 can be scheduled to roll extrusion thickness for adjusting.
Cooperation is consulted shown in Figure 5, the chain belt of metallic plate 412 winding moulding of the present invention is the heat effects by air admission hole 413 or electrothermal tube, the heating predetermined temperature is good between 50-100 ℃, therefore, this base material that heated is after normal temperature cools off down, immediately by these retracting device 50 bundle volumes, possess conveying, roll extrusion simultaneously and add hot work with this conveyer belt 41, and, make this base cloth 32 promptly reach the effect of moulding typing again via this conveyer belt 41 without the required barrel bolt costs such as manpower, machinery equipment and high power consumption of traditional hot case baking.
The present invention is the use that replaces solvent by foamed material; so needn't be as the pollution of traditional wet impregnation that processing procedure produces washing waste water; also there be not the pollution of dry type manufacturing to air; processing procedure generates the noxious material that human body is poisoned so it need not be worried; and also need not purchase waste water, waste gas treatment equipment in addition, have the effect of saving equipment cost and environmental protection.
As Fig. 6-shown in Figure 7, at last, what deserves to be mentioned is, it is PU plastic cement material 16 that shoe-pad 60 manufacturing is finished and the coating polymerization of adhesive-bonded fabric forms, make this shoe-pad 60 have predetermined can around toughness and elasticity, it can be made into the various base materials that buffering is used that have, but and adhesive-bonded fabric more impregnation add the activated carbon material, make this base cloth reach ventilative, absorbing sweat, deodorization, insect protected and effect such as fungi-proofing, and then make Related product, to reach possessing elasticity and preventing effect such as stink of expection at required purposes.
In sum, the present invention has value on its splendid progressive and the industry in fact in like product, also find no the identical construction existence formerly all over looking in domestic and international technical data about this class formation, the document simultaneously, the present invention has novelty, creativeness and practicality.
The above only is preferred embodiment of the present invention, and the equivalent structure that all application the present invention do changes, and ought to be included within protection scope of the present invention.
Claims (1)
1, a kind of manufacture method of no-solvent type base material is characterized in that: mainly comprise the following step:
(1) material is exported via a material device, this material device has the charging basket of predetermined number for installing different material respectively, this charging basket is filled with liquid isocyanates polymer, hydroxy compound and colorant, and this charging basket is that the Material control of holding is exported in predetermined close;
(2) this liquid material is to be imported into the mixing arrangement that shoots material, and this mixing arrangement that shoots material is provided with the mixing head that shoots material, and a screw rod is built in this mixing head that shoots material, and makes material by this screw rod rotary action, i.e. moment reaction mixes the back and penetrates;
(3) one base cloth conveying devices are included in preset distance and are respectively provided to the rare first base cloth reel and the second base cloth reel, this first base cloth reel is pulled out a base cloth that is made of adhesive-bonded fabric, cloth or superfine fibre adhesive-bonded fabric, this base cloth is poured into polyurethanes plastic cement material on the base cloth through this mixing arrangement that shoots material, and guide this base cloth to one roll extrusion district, the plastic cement material is coated on the fiber surface of base cloth fully;
(4) one heating calibrators are the rear ends that are arranged at this roll extrusion district, this calibrator is provided with two conveyer belts of parallel correspondence, this conveyer belt is combined into a chain belt with the metallic plate of predetermined number, and be provided with the air admission hole or the electrothermal tube of predetermined number in this conveyer belt, its heating-up temperature is between 50-100 ℃, the heat effect again of predetermined temperature is provided, base cloth and plastic cement material is reached by roll extrusion mould typing again;
(5) one retracting devices are arranged at this calibrator rear side end, and this retracting device is that this base cloth is furled in batches, and loading transports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02158194 CN1273278C (en) | 2002-12-24 | 2002-12-24 | Manufacturing method of solvent-free substrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02158194 CN1273278C (en) | 2002-12-24 | 2002-12-24 | Manufacturing method of solvent-free substrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1509857A CN1509857A (en) | 2004-07-07 |
| CN1273278C true CN1273278C (en) | 2006-09-06 |
Family
ID=34236904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02158194 Expired - Lifetime CN1273278C (en) | 2002-12-24 | 2002-12-24 | Manufacturing method of solvent-free substrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1273278C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11033890B2 (en) | 2017-11-13 | 2021-06-15 | Dow Technology Investments Llc | Processes for recovery of rhodium from a hydroformylation process |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103448340B (en) * | 2012-05-29 | 2015-09-30 | 凯力实业股份有限公司 | Method for making environment-friendly base material by utilizing recyclable side material or waste material |
| CN107866938A (en) * | 2016-09-26 | 2018-04-03 | 古敦仁 | The continuous applying method of polyurethane foaming layer and superficial layer |
| CN108867077A (en) * | 2017-05-11 | 2018-11-23 | 凯力实业股份有限公司 | Method and equipment for manufacturing environment-friendly dough sheet and base material |
-
2002
- 2002-12-24 CN CN 02158194 patent/CN1273278C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11033890B2 (en) | 2017-11-13 | 2021-06-15 | Dow Technology Investments Llc | Processes for recovery of rhodium from a hydroformylation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1509857A (en) | 2004-07-07 |
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