WO2014148816A1 - 폴리우레탄 지지 패드의 제조 방법 - Google Patents
폴리우레탄 지지 패드의 제조 방법 Download PDFInfo
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- WO2014148816A1 WO2014148816A1 PCT/KR2014/002309 KR2014002309W WO2014148816A1 WO 2014148816 A1 WO2014148816 A1 WO 2014148816A1 KR 2014002309 W KR2014002309 W KR 2014002309W WO 2014148816 A1 WO2014148816 A1 WO 2014148816A1
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- WIPO (PCT)
- Prior art keywords
- support pad
- polyurethane
- polyurethane support
- wet
- molecular weight
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
- C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
- C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
- C08J2201/0544—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being aqueous
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2205/00—Foams characterised by their properties
- C08J2205/06—Flexible foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2207/00—Foams characterised by their intended use
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
Definitions
- the present invention relates to a method for manufacturing a polyurethane support pad, and more particularly, to uniformly form long and large pores therein, and to have low hardness, excellent compressibility and high elasticity, and to realize more uniform and high efficiency polishing.
- a method for producing a polyurethane support pad. [Technique to become background of invention]
- the roughness of the surface of the glass substrate and the difference in positional difference (TTV) are the main management factors : it must be adjustable within the range of sub-microns to several tens of microns. .
- the waviness must be managed at a level of 40 nm, and in particular, the waviness management of about 20 nm is required to be applied as a glass substrate for TFT.
- the support pad used In order to enable such fine grinding, in addition to adjusting the conditions and apparatus of the polishing process, the support pad used must have a high compressibility and a recovery rate, and a more uniform thickness, pressure distribution and tension distribution over the entire support pad area. do.
- previously known support pads have a non-uniform size and distribution of bubbles formed therein, and are also poor in physical properties such as compression rate and compression recovery rate, and require more uniform and precise polishing, for example, polishing of glass substrates for displays. It was not plentiful for application.
- the present invention is to provide a method for manufacturing a polyurethane support pad that can uniformly form long and large pores inside the pad to be produced, exhibit low hardness, excellent compression ratio, and the like, and realize more uniform and highly efficient polishing. It is for.
- the present invention is to provide a polyurethane support pad containing elliptical pores uniformly therein and exhibits low hardness and excellent compressibility.
- the present invention comprises the steps of wet solidifying a resin composition comprising a polyurethane resin having a weight average molecular weight of 220,000 to 1,000,000 and a DMF solvent; And immersing the wet coagulum in an immersion solution at 40 to 90 ° C .; It provides a method for producing a polyurethane support pad comprising a.
- the present invention also provides a polyurethane support pad containing pores having a longest diameter of 50 urn to 2 mm 3 and a flat ratio of 3 to 10 therein, and having a weight average molecular weight of 50,000 to 150,000.
- a method of manufacturing a polyurethane support pad and a polyurethane support pad according to a specific embodiment of the present invention will be described in detail.
- the term 'support pad' refers to a pad which serves to closely adhere or fix the polishing target film to a carrier in a polishing process during a substrate manufacturing process used in a semiconductor or a display device. According to one embodiment of the invention,.
- a polyurethane resin having a high molecular weight was used in the manufacturing process of the support pad.
- the support pad is manufactured using a polyurethane resin having such a high molecular weight, there are some advantages in terms of the shape of the pores, but the hardness of the manufactured support pad is greatly increased, and the compressibility or the compression recovery rate is applied to commercial products. There was a limit not secured to the extent possible.
- the present inventors proceed with a study on the production of a polyurethane support pad, when wet solidifying the polyurethane resin composition can be formed uniformly long oval pores therein, immersing the product of the wet uneven step at a specific temperature When immersed in the solution, it was confirmed through experiments that the weight average molecular weight and density of the polyurethane support pad to be produced can be lowered while maintaining the shape of the pores.
- Polyurethane support pad finally provided according to the manufacturing method according to an embodiment of the present invention, to maintain the shape or the external shape of the pores formed when the wet or uncoated polyurethane resin having a certain level of molecular weight It is possible to have a lower density, hardness and weight average molecular weight, but also to secure physical properties to be secured as a support pad more easily.
- the polyurethane support pad may uniformly include pores of a form that is difficult to include in the polyurethane resin having a weight average molecular weight equivalent to this, for example, long oval pores having a large flat ratio.
- the support pad may have a lower density and hardness than a polyurethane resin obtained by a conventional method known in the art, thereby realizing a higher compression ratio and recovery of compression.
- the inside of the polyurethane support pad provided according to the embodiment of the present invention is uniformly distributed in a large number of long oval pores to easily transfer the trapped air between the support pad and the polishing target film. And evenly distribute the force applied in the polishing step to the entire support pad and the entire to-be-polished body, so that more uniform and fine polishing can be performed. That is, the polyurethane support pad may have higher compressibility and compression recovery and excellent support performance.
- the polyurethane resin may have a weight average molecular weight of 220,000 to 1,000,000, and preferably may have a weight average molecular weight in the range of 300,000 to 500,000.
- a support pad manufactured using a polyurethane resin having a weight average molecular weight of less than 220,000 may have irregularities in pores formed therein or may not exhibit a long oval shape, and may exhibit low compression or compression recovery.
- the polyurethane resin having a weight average molecular weight of more than 1,000,000 has a high viscosity, so the processability in the compounding and coating step is not good, it may take a long time to lower the molecular weight of the resin to the desired range through the immersion process.
- the wet coagulated product may be immersed in an immersion solution at 40 to 90 ° C.
- the urethane bond or ester bond portion of the polyurethane resin is hydrolyzed in the dipping solution of the dipping step, while maintaining the shape of the pores formed inside the wet solidified product of the polyurethane resin composition.
- ester "exchange reaction trans-ester if icat ion
- the dipping solution of the dipping step may include water, aqueous solution of glycerin, aqueous solution of alcohol or a mixture thereof.
- the water may be used as general water without limitation, distilled water, ultrapure water and the like can also be used.
- the aqueous solution of glycerin refers to an aqueous solution containing a part of glycerin, and can be used without limitation in the concentration of glycerin, preferably 0.1 to glycerin aqueous solution.
- specific examples of the aqueous alcohol solution may include ethanol and an IPA aqueous solution. If the alcohol concentration is high, swelling may occur on the surface of the pad, and the alcohol concentration is preferably 10% or less.
- the immersion solution in the method for preparing the polyurethane support pad of the above embodiment more preferably includes water or glycerin solution.
- the immersion step is a temperature of 40 to 90 ° C, preferably 5 C C to
- the immersion step can be made at a temperature of 80 ° C. If the immersion step is made at a temperature that is too low, it is difficult to lower the molecular weight to the extent that can achieve a high compression rate, it is difficult for the polyurethane support pad to have an even pressure distribution or tension distribution, and thus the polyurethane support pad If used, uneven polishing or product defects may occur.
- the immersion step is made at a too high temperature, the polyurethane resin layer may be modified, the adhesive layer that can be used additionally may be volatilized or modified.
- the immersion step may be performed for 1 hour to 4 weeks, preferably 1 day to 3 weeks.
- the immersion step is less than 1 hour If it proceeds, the molecular weight may not be reduced sufficiently, and if it proceeds for more than 4 weeks, the physical properties of the support pad may be lowered.
- the weight average molecular weight of the polyurethane resin may be reduced by 10 to 80%.
- the weight average molecular weight of the polyurethane resin increases as the immersion time increases, and may be reduced by 65 to 80% when immersed for more than three weeks.
- the weight average molecular weight of the resultant product of the polyurethane resin composition is reduced, thereby lowering the density of the final obtained support pad. Compression rate, compression recovery rate, and excellent cock performance.
- the glass transition temperature of the polyurethane resin after the immersion step may be reduced to 5 to 5 (rC, preferably 10 to 40 ° C.
- the polyurethane resin is each glass as the immersion step is carried out. and the transition temperature can be lowered, so that, in a conventional manner a previously known more than the polyurethane resin obtained. can be implemented, such as high compressibility and compression recovery rate.
- the polyurethane support pad manufactured by the manufacturing method of the above embodiment may be distinguished from other conventional polyurethane sheets such as polyurethane polishing pads or polyurethane synthetic leather.
- the polyurethane polishing pad should have high wear resistance and high hardness, so that a polyurethane resin having a crosslinking reaction should be used, and the manufacturing method is not a wet coagulation process, but a prepolymer and other monomers are mixed in situ and molded. It is common to prepare by reaction and curing in the).
- the method of manufacturing the polyurethane support pad is wet-solidified resin composition
- the method may further include forming an adhesive layer on the surface of the wet submerged material.
- phase separation of the resin composition component for example, phase separation of the polyurethane resin, water, and the organic solvent
- a polyurethane resin having a plurality of pores formed therein may be obtained by such a phase separation phenomenon.
- step 1 wet solidifying the resin composition comprising the polyurethane resin and the DMF solvent, step 1 to form the polyurethane resin composition; Coating or adding the polyurethane resin composition to a predetermined substrate or to form a coating layer; And it may comprise the step of depositing the coating layer.
- washing, dehydrating and drying the coagulated product of the composition may be continuously performed.
- an organic solvent or an additive such as a DMF solvent may be removed, and a method and an apparatus known to be usable in a method for preparing a support pad may be used without any significant limitation. Washing the coagulating solution on the surface of the resin composition as described above to remove the organic solvent and other additives, and immersed in the immersion solution at 40 to 90 ° C easily weight average molecular weight of the polyurethane resin without deformation of the formed pores Can be lowered.
- the substrate or the coating layer may be formed into a dimethylformamide aqueous solution or a coagulation tank filled with water.
- the polyurethane resin is gradually solidified and thus a plurality of pores may be formed.
- concentration of the aqueous solution filled in the coagulation bath and the amount of the aqueous solution or water are not particularly limited, and may be appropriately adjusted according to the reaction conditions and the physical properties of the support pad to be produced.
- the method of manufacturing the polyurethane support pad may include grinding (or buffing) the surface of the wet deposit.
- the polishing step is a step of cutting a surface of a polyurethane film (100% Modulus 1 to 10) having a low hardness by using a roll of sand paper wound at a high speed, where high energy is applied.
- the polished film may be cut several hundreds at a time, or several times at several tens of times.
- the method of manufacturing the polyurethane support pad may further include forming an adhesive layer on a surface of the buffed wet coagulated product.
- This adhesive layer can be formed using any method and configuration known to be used to manufacture the final product of the support pad without any particular limitation.
- the adhesive layer may be formed by coating a constant adhesive, for example, a pressure-sensitive adhesive (PSA), on the surface of the wet coagulum or the surface polished wet coagulum, or the surface of the wet coagulum or It may be formed by laminating a pressure-sensitive double-sided adhesive film on the surface of the surface polished wet coagulated product.
- PSA pressure-sensitive adhesive
- the immersion step may be performed without being limited to the process sequence.
- the method may be performed after wet solidifying the polyurethane resin composition, washing the wet solidified product of the polyurethane resin composition, polishing the surface, or forming the adhesive layer, but having a preformed pore shape.
- it is preferable to wash and immerse the wet-solidified resin composition.
- the resin composition may comprise 1 to 30 wt, preferably 5 to 25% of the polyurethane resin. If the content of the polyurethane resin in the resin composition is too small, the main body of the support pad It may be difficult to form and the viscosity of the composition may be so low that it may not be easy to apply to the coating process for making the support pads. In addition, when the content of the polyurethane resin in the resin composition is too large, the density of the obtained polyurethane support pad becomes more than necessary or the viscosity of the composition becomes so large that it may not be easy to apply to the coating process for producing the support pad. Can be.
- the resin composition may include a dimethylformamide (DMF) solvent, wherein the dimethylformamide (DMF) means ⁇ -dimethylmethanamide.
- a polyurethane support pad having pores therein may be formed by phase separation between a resin composition component, for example, a polyurethane resin, water, and a DMF solvent. That is, in the uncoiling process of the resin composition, the DMF solvent present in the polyurethane resin is replaced with water in the coagulation bath, and when the coagulation process is completed, a polyurethane resin for a support pad having pores formed therein is formed.
- the resin composition may include 50 to 90wt% of the DMF solvent, preferably 50 to 85 ⁇ %.
- the content of the DMF solvent is too small on the resin composition may not form pores in the resin during the unfolding process, if the content is too large, the ratio of the polyurethane resin is greatly reduced to prepare a polyurethane support pad having proper properties It can be difficult to do.
- the resin composition may further include an anionic surfactant.
- the anionic surfactants allow the water to penetrate uniformly over the entire area of the composition to be solidified, and to prevent the phase separation of the respective components of the polyurethane resin composition from being concentrated in a certain portion, so that pores are formed in the support pad. It can be made very uniform.
- Such anionic surfactants may be used by appropriately adjusting the content in consideration of physical properties and process conditions of the support pad to be produced, for example, in the polyurethane resin composition for the support pad. 0.01 to 5% may be included.
- anionic surfactants examples include dodecylbenzenesulfonic acid, dodecylbenzenesulfonic acid derivatives, succinic acid, succinic acid derivatives, dodecylsulfate, dodecylsulfate derivatives or mixtures of one or more thereof.
- anionic surfactant dodecylbenzenesulfonic acid or derivatives thereof succinic acid or derivatives thereof It is preferable to use it in combination, in order to adjust suitably the shape and size of the process formed in a support pad, and to improve the physical property of the support pad manufactured.
- the resin composition may further include a nonionic surfactant to increase the adsorption force of the support pad or to planarize the surface of the pad.
- nonionic surfactants include silicone-based polymers, silicone oils, glycerol-based polymers, or hydrocarbon-based polymers.
- Such nonionic surfactants may be used by appropriately adjusting the content in consideration of physical properties and process conditions of the support pad to be manufactured, and may be included, for example, in 0.01 to 5% of the polyurethane resin composition for the support pad.
- the resin composition may further include at least one additive selected from the group consisting of colorants, water repellents, layering agents, pore size regulators and pigments.
- additives may be used by appropriately adjusting the content in consideration of physical properties and process conditions of the support pad to be manufactured, and for example, each additive may be included in the resin composition in an amount of 0.01 to 10%.
- a polyurethane support pad containing pores having a longest diameter of 50 to 2 mm and a flat ratio of 3 to 10, and having a weight average molecular weight of 50,000 to 200,000.
- it may have a longest diameter of 300 ji to 2mm and a flat ratio of 4 to 9, the weight average molecular weight may be 50,000 to 150,000.
- the polyurethane support pad may have a compression of 40% or more, or 50 to 70% according to J IS L 1021-16.
- the polyurethane support pad may have a glass transition temperature at -50 to ⁇ KTC and 10 to 50 ° C.
- such a polyurethane support pad can be obtained by immersing the wet solidified product of the polyurethane resin composition comprising a polyurethane resin having a weight average molecular weight of 220,000 to 1,000,000 and DMF solvent in 40 to 90 ° C immersion solution. Polyurethane resin through the immersion process The increase average molecular weight of the composition can be reduced by 10 to 80% from 220,000 to 1,000,000.
- the polyurethane support pad has long and large pores uniformly therein, has a low weight average molecular weight, may exhibit high compressibility, compression recovery rate, and elastic modulus, and sufficiently absorbs uneven impact applied during polishing to uniformly and finely polish. Can be implemented.
- Figure 1 shows a cross-sectional SEM photograph of the support pad prepared in Example 1.
- Figure 2 shows a cross-sectional SEM picture of the support pad prepared in Comparative Example 2.
- Figure 3 shows a cross-sectional SEM picture of the support pad prepared in Comparative Example 3.
- Figure 4 shows a cross-sectional SEM photograph of the support pad prepared in Comparative Example 3.
- Example 5 is a DMA measurement graph of the support pad prepared in Comparative Example 3.
- 6 is a DMA measurement graph of the support pad prepared in Example 1.
- the coating layer was wet coagulated, washed with water, dehydrated and dried to obtain a polyurethane resin film layer having pores therein.
- the obtained polyurethane resin film layer is buffed using a roll of sand paper wound at high speed, and depressurized on one surface of the buffed polyurethane resin film layer.
- the double-sided adhesive tape was laminated to obtain a polyurethane support pad.
- the support pad was immersed in water of 50 ° C for the time of Table 2, and dried in Aubonne to prepare a polyurethane support pad of the final product.
- Polyurethane support pads were obtained in the same manner as in Example 1, except that 5 (C was immersed in 5% aqueous solution of glycerin instead of 50 ° C.).
- Polyurethane support pads were obtained in the same manner as in Example 1 except for aging for 50 hours in an oven at 50 ° C. instead of the dipping process.
- a polyurethane support pad was obtained in the same manner as in Example 1, except that a polyurethane resin having a molecular weight of 210,000 was used without immersion.
- Example 2 Compression ratio and final weight average molecular weight according to the immersion time of the prepared polyurethane support pad are shown in Table 2, and a cross-sectional SEM photograph of the support pad is shown in FIG. Comparative Example 3 A polyurethane support pad was obtained in the same manner as in Example 1 except that the immersion process was not performed.
- a polyurethane support pad was obtained in the same manner as in Example 1 except that it was immersed at a lower temperature of less than 40 ° C.
- Examples 1 and 2 and Comparative Examples 1 and 3 were both wet coagulated, washed with water, dehydrated, dried, buffed, and immersed.
- the polyurethane support pad prepared by forming the adhesive layer had a molecular weight of 318,000.
- Examples 1 and 2 finally produced a polyurethane support pad through the step of immersing the polyurethane support pad having a molecular weight of 318,000, Comparative Example 1 of the same temperature as the immersion step instead of the immersion step It was finally produced by aging in an oven, and Comparative Example 3 omitted the dipping process .
- Comparative Example 4 was immersed at a low temperature of less than 40 ° C to prepare a polyurethane support pad.
- the average molecular weights of the support pads of Examples 1 and 2 were increased to 119,000 and 92,000, respectively, to confirm that the molecular weight could be lowered through the immersion process, and the compression ratio was 56% and 57%. It appears high that it is possible to finely polish the glass substrate, which is the surface to be polished, in a uniform and high efficiency in actual polishing.
- the support pads of Comparative Example 1 and Comparative Example 3 had a slight change in molecular weight and showed a compression ratio of less than 50%.
- the compression rate improvement effect and the molecular weight reduction effect of the immersion step can be confirmed. That is, the immersion step was omitted, or the time at the same temperature as in the embodiment without immersion When the aging (aging) did not show a large change in molecular weight and compression rate, the molecular weight decreases, it was confirmed that the phenomenon that the compression rate is the effect of the immersion step rather than the phenomenon of high temperature or time.
- Comparative Example 2 prepared using a low molecular weight polyurethane resin of 210,000 as a starting material did not include an immersion process did not reduce the molecular weight further, but the molecular weight of the starting material and the final polyurethane resin Molecular weights are equivalent so that equivalent levels of density and hardness can be exhibited.
- the support pad of the embodiment showed a significantly higher compression ratio and compression recovery than Comparative Example 2, while the manufacturing method of the embodiment well formed pores inside the support pad, and also showed the shape and distribution of the pores evenly. You can see it.
- the polyurethane support pad of Example 1 using a high molecular weight polyurethane shows a cross-sectional shape containing long and evenly distributed pores, compared with a low molecular weight polyurethane It can be seen that compared to the cross-sectional shape of Example 2 to form a significantly improved and improved pore shape.
- the support pad of Comparative Example 3 which was not immersed in the DMA measurement graphs of FIGS. 5 and 6, was observed to have glass transition silver around 0 ° C. and 60 ° C., but was manufactured by performing the immersion process.
- the glass transition temperature was observed at approximately -20 ° C and 30 ° C, it can be seen that the glass transition temperature is lowered as the immersion process proceeds.
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- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
Description
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP14767734.8A EP2899226B1 (en) | 2013-03-19 | 2014-03-19 | Method for preparing polyurethane support pad |
CN201480003003.9A CN104797639B (zh) | 2013-03-19 | 2014-03-19 | 聚氨酯支撑垫的制备方法 |
JP2016504252A JP6231185B2 (ja) | 2013-03-19 | 2014-03-19 | ポリウレタン支持パッドの製造方法 |
Applications Claiming Priority (4)
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KR20130029176 | 2013-03-19 | ||
KR10-2013-0029176 | 2013-03-19 | ||
KR1020140031975A KR101580590B1 (ko) | 2013-03-19 | 2014-03-19 | 폴리우레탄 지지 패드의 제조 방법 |
KR10-2014-0031975 | 2014-03-19 |
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WO2014148816A1 true WO2014148816A1 (ko) | 2014-09-25 |
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EP (1) | EP2899226B1 (ko) |
JP (1) | JP6231185B2 (ko) |
KR (1) | KR101580590B1 (ko) |
CN (1) | CN104797639B (ko) |
TW (1) | TWI515238B (ko) |
WO (1) | WO2014148816A1 (ko) |
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KR101527348B1 (ko) * | 2014-03-04 | 2015-06-09 | 대원화성 주식회사 | 내구성이 향상된 유지패드 |
CN104385120B (zh) * | 2014-10-16 | 2017-06-30 | 中国科学院化学研究所 | 聚氨酯抛光垫的制备方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060094063A (ko) * | 2006-07-20 | 2006-08-28 | 대원화성 주식회사 | 피연마체 파지용 폴리우레탄패드의 제조방법 |
KR20120073200A (ko) * | 2009-09-03 | 2012-07-04 | 후지보홀딩스가부시끼가이샤 | 유지 패드 |
KR20120109994A (ko) * | 2009-06-23 | 2012-10-09 | 아사히 가라스 가부시키가이샤 | 홀딩패드 |
KR20130009673A (ko) * | 2011-07-15 | 2013-01-23 | 주식회사 엘지화학 | 폴리우레탄 수지 조성물 및 폴리우레탄 지지 패드 |
KR20130009687A (ko) * | 2011-07-15 | 2013-01-23 | 주식회사 엘지화학 | 폴리우레탄 수지 조성물 및 이를 이용한 폴리우레탄 흡착 패드 |
KR20130020633A (ko) * | 2011-08-17 | 2013-02-27 | 주식회사 엘지화학 | 지지 패드용 폴리우레탄 수지 조성물 및 이를 이용한 폴리우레탄 지지 패드 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02220838A (ja) * | 1989-02-22 | 1990-09-04 | Rodeele Nitta Kk | 積層体、並びに該積層体を用いた被研磨部材の保持材及び研磨布 |
JP2011235385A (ja) * | 2010-05-10 | 2011-11-24 | Teijin Cordley Ltd | 吸着パッド |
JP5516990B2 (ja) * | 2010-11-08 | 2014-06-11 | Dic株式会社 | 湿式成膜用ウレタン樹脂組成物、それを用いて得られる多孔体及び研磨パッドならびにそれらの製造方法 |
CN102875769A (zh) * | 2011-07-15 | 2013-01-16 | 株式会社Lg化学 | 聚氨酯树脂组合物及聚氨酯支撑垫片 |
WO2013025082A2 (ko) * | 2011-08-17 | 2013-02-21 | 주식회사 엘지화학 | 지지 패드용 폴리우레탄 수지 조성물 및 이를 이용한 폴리우레탄 지지 패드 |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060094063A (ko) * | 2006-07-20 | 2006-08-28 | 대원화성 주식회사 | 피연마체 파지용 폴리우레탄패드의 제조방법 |
KR20120109994A (ko) * | 2009-06-23 | 2012-10-09 | 아사히 가라스 가부시키가이샤 | 홀딩패드 |
KR20120073200A (ko) * | 2009-09-03 | 2012-07-04 | 후지보홀딩스가부시끼가이샤 | 유지 패드 |
KR20130009673A (ko) * | 2011-07-15 | 2013-01-23 | 주식회사 엘지화학 | 폴리우레탄 수지 조성물 및 폴리우레탄 지지 패드 |
KR20130009687A (ko) * | 2011-07-15 | 2013-01-23 | 주식회사 엘지화학 | 폴리우레탄 수지 조성물 및 이를 이용한 폴리우레탄 흡착 패드 |
KR20130020633A (ko) * | 2011-08-17 | 2013-02-27 | 주식회사 엘지화학 | 지지 패드용 폴리우레탄 수지 조성물 및 이를 이용한 폴리우레탄 지지 패드 |
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EP2899226A4 (en) | 2016-05-18 |
KR101580590B1 (ko) | 2015-12-28 |
EP2899226B1 (en) | 2017-05-10 |
TW201504292A (zh) | 2015-02-01 |
KR20140114800A (ko) | 2014-09-29 |
CN104797639A (zh) | 2015-07-22 |
CN104797639B (zh) | 2017-10-10 |
JP2016512795A (ja) | 2016-05-09 |
JP6231185B2 (ja) | 2017-11-15 |
EP2899226A1 (en) | 2015-07-29 |
TWI515238B (zh) | 2016-01-01 |
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