WO2004092272A1 - Toughened nylon, the process of preparing it and its use - Google Patents
Toughened nylon, the process of preparing it and its use Download PDFInfo
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- WO2004092272A1 WO2004092272A1 PCT/CN2004/000373 CN2004000373W WO2004092272A1 WO 2004092272 A1 WO2004092272 A1 WO 2004092272A1 CN 2004000373 W CN2004000373 W CN 2004000373W WO 2004092272 A1 WO2004092272 A1 WO 2004092272A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/04—Preparatory processes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
Definitions
- the present invention relates to toughened nylon, a preparation method and use thereof, and in particular to a toughened nylon obtained by toughening a base nylon with a long-chain nylon, a preparation method and use thereof.
- nylon uses rubber components, such as ethylene-propylene rubber, EPDM, butadiene rubber, styrene butadiene rubber, etc .; thermoplastic elastomer components, such as styrene-butadiene-styrene copolymer (SBS ), Styrene-ethylene-butadiene-styrene copolymer (SEBS), ethylene-vinyl acetate copolymer (EVA), ethylene-acrylic acid copolymer (EAA), and the like.
- SBS styrene-butadiene-styrene copolymer
- SEBS Styrene-ethylene-butadiene-styrene copolymer
- EAA ethylene-vinyl acetate copolymer
- EAA ethylene-acrylic acid copolymer
- solubilizers such as maleic anhydride grafted elastomers, such as maleic anhydride grafted polyethylene (Eg-MAH), maleic anhydride grafted thermoplastic Elastomer (TPE-g-MAH), etc.
- Eg-MAH maleic anhydride grafted polyethylene
- TPE-g-MAH maleic anhydride grafted thermoplastic Elastomer
- Cast nylon has a high molecular weight and good mechanical properties. However, large products obtained by casting are prone to cracking due to insufficient toughness, especially sensitive to notches, so they need to be modified.
- the toughening method of cast nylon-6 is mainly through copolymerization with dodecyllactam or modification with rubber components.
- the modifiers currently used are generally amino-terminated polyethylene oxide, polypropylene oxide or copolymerization thereof. Materials, amino-terminated liquid polybutadiene, butadiene rubber, etc.
- US patents US 4,882,382, US 4,994,524, US 5,189,098 disclose a method of toughening cast nylon with a core-shell polymer, which is a method of preparing an aqueous dispersion of a polymer consisting of an elastomeric core and a hard thermoplastic shell It was mixed with an aqueous solution of caprolactam, and then the water was removed to obtain a dispersion. The dispersion was co-polymerized with a catalyst and caprolactam to obtain a rubber-toughened nylon-6 polymer, where the content of the core-shell polymer was generally greater than 10%.
- the preparation process of such a toughening agent has complicated steps and is not convenient for operation.
- nylons extruded by hydrolytic polycondensation or screw reaction are also toughened by adding rubber components or reactive low-molecular tougheners, or toughened by screw extrusion with rubber or elastomer after resin formation.
- the rubber component and the thermoplastic elastomer component are insoluble in the monomeric lactam of nylon. They are phase-separated from the nylon matrix in the system, and their properties are related to the size of the dispersed phase. And its crystallinity is reduced, and the strength of the material is greatly reduced. Therefore, it is difficult to toughen cast nylon with a rubber component and a thermoplastic elastomer component as a toughening agent.
- the object of the present invention is to provide a toughened nylon, which has enhanced toughness, does not require the use of a solubilizer, and does not cause the phenomenon of phase separation and thereby reducing the strength of the material.
- Another object of the present invention is to provide a very simple and easy method for preparing toughened nylon.
- Yet another object of the present invention is to provide the use of toughened nylon.
- the present invention provides a toughened nylon, which includes a matrix nylon and a long-chain nylon.
- the matrix nylon is formed by homopolymerizing or copolymerizing a cyclic lactam monomer or a corresponding amino acid.
- the cyclic lactam has the formula:
- A is H or a fluorenyl group having 1 to 8 carbon atoms, 3 n ll,
- the long-chain nylon is selected from nylons having a repeating unit represented by formula ( ⁇ ), (III), or (IV):
- D represents-(CH 2 ) X- , wherein H may be optionally substituted with d. 4 alkyl;
- E represents-(CH 2 ) y -or phenylene, wherein H may be any Optionally substituted by CL 4 alkyl; 4 ⁇ x ⁇ 34; 4 ⁇ y ⁇ 34;
- the amount of the long-chain nylon accounts for 2-45% of the total weight of the toughened nylon.
- the toughened nylon has a good interface bonding, and has only one melting peak measured by differential scanning calorimetry.
- the present invention provides a toughened nylon, which includes a matrix nylon and a long-chain nylon.
- the matrix nylon is obtained by homopolymerizing or copolymerizing a cyclic lactam monomer or a corresponding amino acid.
- the cyclic lactam has the formula ( I), the corresponding amino acid has the structure shown by formula ( ⁇ ):
- A is H or an alkyl group having 1 to 8 carbon atoms, 3 n l l,
- the long-chain nylon is selected from nylons having a repeating unit represented by formula (11), (III), or (IV):
- D represents-(CH 2 ) X- , wherein H may be optionally substituted by C w alkyl
- E Re represents-(CH 2 ) y -or phenylene, wherein H may be optionally substituted by CL 4 alkyl; 4 x 34; 4 ⁇ y ⁇ 34 ;
- the toughened nylon is obtained by polymerizing the cyclic lactam monomer in the presence of the long-chain nylon as a toughening agent, and the amount of the long-chain nylon as a toughening agent accounts for the total amount of the toughened nylon. 2-45% by weight.
- the cyclic lactam monomer is one or more selected from the following monomers: butyrolactam, valerolactam, caprolactam, captolactam, caprolactam, caprolactam, caprolactam, eleven Lactam, dodecanolactam, N-methylcaprolactam, N-n-octylnonanolactam, N-tert-butyldodecanolactam; the corresponding amino acids include ⁇ -aminobutyric acid, ⁇ -aminovaleric acid, ⁇ -Aminohexanoic acid, ⁇ -aminoheptanoic acid, ⁇ -aminooctanoic acid, ⁇ -aminononanoic acid, ⁇ -aminodecanoic acid, ⁇ -aminoundecanoic acid,
- the present invention also provides a method for preparing the toughened nylon of the present invention.
- the method includes the following steps: dissolving the long-chain nylon resin in the lactam monomer or a corresponding amino acid, and An amine monomer or a corresponding amino acid is subjected to a polymerization reaction, and the dissolution step and the polymerization reaction step are performed simultaneously, or the dissolution step is performed before the obtained solution is polymerized.
- the above-mentioned polymerization reaction is preferably performed by any one process selected from the group consisting of casting, reactive extrusion, hydrolytic polymerization, and solid phase polymerization.
- the casting process includes the following steps: dissolving the long-chain nylon in the molten cyclic lactam monomer or its corresponding amino acid, dehydrating, and then adding a catalyst, dehydrating, adding a cocatalyst when the temperature is raised to 120-200 ° C and immediately Pour into the pre-heated mold and carry out the polymerization reaction in an oven.
- the polymerization temperature is 150-250 ° C to obtain toughened nylon.
- the reactive extrusion process includes the following steps: adding a long-chain nylon to a cyclic lactam monomer or its corresponding amino acid located in a reactor and dissolving it, removing water under vacuum, adding a catalyst, and continuing to remove water under vacuum; Add cyclic lactam monomer or its corresponding amino acid and cocatalyst in one reactor and vacuum dehydrate; add the contents of the two reactors to the extruder for polymerization reaction, and control the temperature of the polymerization section to 220-250 ° C, control the screw speed so that the residence time of the material in the screw is 0.5-7 minutes, and extrude to obtain toughened nylon.
- the hydrolysis polymerization process includes the following steps: adding long-chain nylon to the cyclic lactam monomer or its corresponding amino acid, heating and dissolving, adding water, and performing the conditions at a temperature of 200-250 ° C and a pressure of 10-20 MPa Hydrolytic polymerization. After 0.5-6 hours, the pressure is reduced and vacuum dehydrated. The polymerization is continued to further increase the viscosity to obtain a toughened nylon.
- the invention also provides the use of toughened nylon for manufacturing gears, bearings, precision instrument parts, and automobile parts.
- the present invention uses a long-chain nylon to toughen a matrix nylon formed by homopolymerization or copolymerization of a cyclic lactam to obtain a toughened nylon.
- the nylon has enhanced toughness, exhibiting excellent tensile strength, elongation at break, and notched impact strength. In addition, it has very good low temperature resistance, and its toughness does not decrease much at -40 ° C.
- This nylon does not require the use of a solubilizer, nor does it occur in the prior art that the toughener and the matrix are phase-separated to reduce the strength of the material.
- the method for preparing a toughened nylon according to the present invention is simple and easy to operate, and does not require the use of a solubilizer or other means to enhance the compatibility of the toughener and the base nylon.
- FIG. 1 is an electron micrograph of a product obtained by adding 8% by weight (based on the total weight of toughened nylon) of the present invention to a caprolactam monomer, with a magnification of 30,000 times.
- FIG. 2 is an electron microscope photograph of a product obtained by adding 10% by weight (based on the total weight of the toughened nylon) of the present invention to a caprolactam monomer, with a magnification of 4000 times.
- Fig. 3 is an electron micrograph of pure nylon 6 not toughened in the prior art, with a magnification of 10,000 times.
- Figure 4 is a differential scanning calorimetry (DSC) spectrum of nylon 1212 toughened nylon 6 made by the method of the present invention.
- Figure 5 is a differential scanning calorimetry (DSC) spectrum of a blend of nylon 6 and nylon 1212.
- FIG. 6 is a differential scanning calorimetry (DSC) spectrum of pure nylon 6. Detailed description of the invention
- matrix nylon used in the present invention refers to a toughened nylon ⁇ toughened nylon portion, which is formed by homopolymerization or copolymerization of a cyclic lactam monomer or a corresponding amino acid.
- the cyclic lactam has the formula The structure represented by (I), and the corresponding amino acid has a structure represented by formula ( ⁇ ).
- A is H or an alkyl group having 1 to 8 carbon atoms, and 3 n ll.
- Cyclic lactam monomers include butyrolactam, valerolactam, caprolactam, captolactam, caprolactam, nonnolactam, caprolactam, undecyllactam, dodecyllactam, N-methylcaprolactam, N -N-octyl nonanolactam, N-tert-butyl dodecanolactam, preferably caprolactam.
- Corresponding amino acids include omega-aminobutyric acid, omega-aminovaleric acid, omega-aminocaproic acid, omega-aminoheptanoic acid, omega-aminooctanoic acid, omega-aminononanoic acid, omega-aminodecanoic acid, omega-aminoundecyl Acid, omega-aminododecanoic acid.
- Matrix nylon can be homopolymerized from any cyclic lactam monomer or its corresponding amino acid, including, for example: nylon 4, nylon 5, nylon 6, nylon 7, nylon 8, nylon 9, nylon 10, nylon 11, and Nylon 12.
- Matrix nylon can also be copolymerized from these cyclic lactam monomers or their corresponding amino acids, including, for example: copolycondensation nylon 4/6 (the nylon can be formed by copolycondensation of ⁇ -aminobutyric acid and ⁇ -aminohexanoic acid), Copolycondensation nylon 6/10, copolycondensation nylon 6/9, copolycondensation nylon 6/12.
- long-chain nylon used in the present invention refers to nylons having at least 8 carbon atoms in the main chain of the repeating unit, and these nylons include repeating units such as those shown by formulas H), (III), and (IV).
- D represents-(CH 2 ) X- , wherein H may be optionally substituted by alkyl;
- E represents-(CH 2 ) y -or phenylene, wherein H may be optionally 4 alkyl substituted; 4 x 34; 4 ⁇ y ⁇ 34 ;
- the long-chain nylon as a toughener of the present invention has at least 8 and more preferably at least 10 carbon atoms in the main chain of the repeating unit.
- This long-chain nylon may be a nylon having repeating units such as the formulae (11), (III), and (IV), and is preferably nylon-1010, nylon-1111, nylon-1212, nylon-1313, nylon-46, Nylon 66, Nylon-610, Nylon-612, Nylon-613, Nylon-1011, Nylon-1012, Nylon-1213, Poly (terephthaloyl 2,2,4-trimethylhexamethylenediamine), Poly ( 3-tert-butyl adipamide), nylon-8, nylon-9, nylon-11, nylon-12, nylon-13, copolycondensate nylon 6/7, copolycondensate nylon 6/10, copolycondensate nylon 6/12, co-condensed nylon 6/13, co-condensed nylon 10/11, co-condensed nylon 10/12, co-condensed nylon 12/13, nylon 6
- the present invention uses long-chain nylon as a toughening agent to replace the rubber or thermoplastic elastomer in the prior art.
- Long-chain nylons are characterized by nylon polymers that are soluble in cyclic lactam monomers or their corresponding amino acids. These nylon polymers may be homopolymers or copolymers. These long-chain nylons have a similar structure to the base nylon, and both contain amide bonds, so they have good compatibility, that is, good interfacial bonding.
- long-chain nylon has at least 8 carbon atoms in the main chain of the repeating unit, the hydrogen bond density will be changed, thereby changing its crystallization mode and crystallinity. This unique structure results in good toughness, making nylon's The toughness has been greatly improved.
- the amount of long-chain nylon can be changed according to different processes and material performance requirements, usually 2-45% based on the total weight of toughened nylon, particularly preferably 6-25%.
- the toughened nylon of the present invention can be prepared by a simple and easy method.
- the toughened nylon can be prepared by anion-initiated polymerization of monomer casting, reactive extrusion process of single (double) screw, polymerization method of hydrolytic polycondensation, and the like.
- the toughened long-chain nylon is directly dissolved in the cyclic lactam monomer or its corresponding amino acid, the water is removed under vacuum, the catalyst and cocatalyst are added, and the polymerization reaction is performed in a mold to obtain the reinforcement. Tough nylon.
- long-chain nylon is dissolved in a cyclic lactam monomer or its corresponding amino acid
- the catalyst is added and mixed with another cyclic lactam monomer containing the cocatalyst or its corresponding amino acid by a metering pump and added to the mixer, and then enters the extruder (such as a single screw extruder or a twin screw extruder) Extruder) reactive extrusion to obtain toughened toughened nylon.
- a long-chain nylon, a cyclic lactam monomer, or a corresponding amino acid is added to a polymerization kettle, and the mixture is hydrolyzed and polycondensed at a high temperature (for example, 200-250 ⁇ ), and then vacuumed to increase the resin viscosity. After hours, the material was pelletized under pressure to obtain a toughened nylon.
- the nylon can also be subjected to solid phase polycondensation to obtain high molecular weight nylon.
- solid-phase polymerization can also be used to prepare the toughened nylon of the present invention. Specifically, long-chain nylon is added to the ⁇ -amino acid, and condensation polymerization is performed at 200-250 ° C, and then solid-phase polycondensation continues to increase the molecular weight at 150-200 ° C and under vacuum. Toughened after 6-24 hours Nylon system.
- the types and amounts of the catalysts and co-catalysts can be easily determined by those skilled in the art according to specific circumstances.
- the catalyst is sodium hydroxide, potassium hydroxide, sodium alkoxide, Grignard reagent, etc.
- the co-catalyst is isocyanate, acylamide, acid chloride, carbonate, polyester, urea, etc., specifically, 2,4-diisocyanate (TDI), acetylacetamide, acetyl chloride, dimethyl carbonate, polyethylene terephthalate (PET), etc.
- TDI 2,4-diisocyanate
- PET polyethylene terephthalate
- the amount of the catalyst is 0.0005-10% by weight, and the amount of the co-catalyst is 0.005-4% by weight, more preferably 0.02-2% by weight, based on the cyclic lactam monomer or its corresponding amino acid.
- water is added in an amount of 10 to 100% by weight based on the cyclic lactam monomer or its corresponding amino acid.
- the timing of adding the long-chain nylon to the cyclic lactam monomer or its corresponding amino acid can be determined according to the specific polymerization process.
- long-chain nylon needs to be dissolved in a cyclic lactam monomer or its corresponding amino acid before being subjected to casting polymerization.
- long-chain nylon can be previously dissolved in part of the cyclic lactam monomer or its corresponding amino acid, and then the remaining cyclic lactam monomer or its corresponding Amino acid.
- the long-chain nylon can be dissolved in the cyclic lactam monomer or its corresponding amino acid before polymerization, or the long-chain nylon can be added during the hydrolysis polymerization.
- a feature of the present invention is that the long-chain nylon system is used to toughen the base nylon, so that the long-chain nylon for toughening is dissolved in the melt of the cyclic lactam monomer or its corresponding amino acid, so that the long-chain nylon can be toughened
- the single molecule morphology is dispersed in the polymer system, so that the two form a homogeneous system. From the DSC spectra of Fig. 4 to Fig. 6, it can be seen that the toughened nylon system of the present invention has only one melting peak, while the blend system of the matrix nylon and the long-chain nylon has two melting peaks. Toughened nylon system of the invention Homogeneous nature. It can be seen from the scanning electron microscope of FIG. 1 to FIG. 3 that the crystalline state of the toughened nylon system of the present invention has changed compared with the conventional nylon, and it is this change that greatly improves the toughness and fracture growth rate of the base nylon.
- the long-chain nylon for toughening can be dissolved in the cyclic lactam monomer or its corresponding amino acid to obtain a homogeneous solution, which is suitable for the casting process and reactive extrusion of nylon preparation. Craft.
- rubber is usually used to toughen nylon. Because rubber is generally insoluble in cyclic lactam monomers, only toughened nylon can be prepared by screw extrusion.
- a solubilizing agent must be added to increase the Compatibility between tough rubber and nylon matrix.
- nylon-1212 8 parts were dissolved in 92 parts of molten caprolactam monomer with stirring, and dehydrated under vacuum for 0.5 hours. Then, 0.2% sodium hydroxide was added based on the weight of the monomer, and the solution was dehydrated and dissolved in vacuum to form sodium amide as a catalyst. Raise the temperature to 140 V, add 0.4% 2,4-diisocyanate (TDI) based on the weight of the monomer, and immediately pour it into a mold pre-heated to 165 ° C. Polymerize in an oven at 170 ° C To obtain nylon-1212 toughened cast nylon-6. The mechanical properties of the toughened nylon system are shown in Table 1. Electron micrographs and DSC spectra of the obtained products are shown in Figures 1 and 4, respectively. Example 2 (extrusion)
- nylon 13 45 parts were added to 55 parts of N-n-octylnonanolactam monomer, and dissolved at 140 °. Add 25 parts of deionized water, heat up to 250 ° C and pressurize to 20 MPa for hydrolytic polymerization. After half an hour, reduce the pressure and vacuum to remove the water, and continue the polymerization to further increase the viscosity. After 6 hours, pressurize the material and cut it. Pellets to obtain nylon 13 toughened poly (N-n-octylnonanolactam). The mechanical properties of the toughened nylon system are shown in Table 1. Example 10 (hydrolysis)
- nylon 24 slices were added to 70 parts of caprolactam monomer, and dissolved at 140 ° F. Add 70 parts of deionized water, heat up to 20 CTC and pressurize to 10 MPa for hydrolytic polymerization. After 6 hours, reduce the pressure and vacuum to remove the water and continue the polymerization to further increase the viscosity. After 0.2 hours, pressurize and discharge the pellets.
- Nylon 24 toughened hydrolyzed polycondensation nylon-10 was obtained. The mechanical properties of the toughened nylon system are shown in Table 1.
- nylon 6T powder 15 parts was added to 100 parts of laurolactam monomer in a reactor, and dissolved at 100 ° C. Then remove the water in a stainless steel kettle under vacuum, add 3% sodium hydroxide based on the weight of the monomer, Continue vacuum removal. In a separate reactor, 20 parts of laurolactam monomer and 2.5% dimethyl carbonate based on the weight of the monomer were charged and dehydrated in vacuo. The metering pump was added to the twin-screw extruder separately, the temperature of the polymerization section was controlled at 250 ° C, and the speed of the screw was controlled so that the residence time of the material on the screw was 0.5-2 minutes. A nylon 6T toughened reactive extruded nylon-12 is obtained. The mechanical properties of the toughened nylon system are shown in Table 1. Example 13 (Solid-phase polycondensation)
- nylon 1010 Five parts of nylon 1010 were added to 95 parts of ⁇ -amino-1 ⁇ monoacid monomer, and condensation polymerization was performed at 250 ° C, and then solid-state polycondensation under 20 CTC vacuum continued to increase its molecular weight. After 6 hours, nylon 1010 increased Tough nylon 11. The mechanical properties of the toughened nylon system are shown in Table 1.
- nylon-66 toughened cast nylon-6 was obtained.
- the mechanical properties of the toughened nylon system are shown in Table 1.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP04728155A EP1616910A4 (en) | 2003-04-18 | 2004-04-19 | IMPACT TIMES MODIFIED POLYAMIDE, MANUFACTURING METHODS AND USE THEREOF |
JP2006500459A JP2006523727A (ja) | 2003-04-18 | 2004-04-19 | 高靭性ナイロン、その製造方法と用途 |
US10/553,019 US7772329B2 (en) | 2003-04-18 | 2004-04-19 | Toughened nylon, the process of preparing it and its use |
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CNB03116479XA CN100460445C (zh) | 2003-04-18 | 2003-04-18 | 增韧尼龙、其制备方法及用途 |
CN03116479.X | 2003-04-18 |
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WO2004092272A1 true WO2004092272A1 (en) | 2004-10-28 |
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US (1) | US7772329B2 (zh) |
EP (1) | EP1616910A4 (zh) |
JP (1) | JP2006523727A (zh) |
KR (1) | KR100711418B1 (zh) |
CN (1) | CN100460445C (zh) |
WO (1) | WO2004092272A1 (zh) |
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- 2004-04-19 KR KR1020057019772A patent/KR100711418B1/ko active IP Right Grant
- 2004-04-19 WO PCT/CN2004/000373 patent/WO2004092272A1/zh active Application Filing
- 2004-04-19 JP JP2006500459A patent/JP2006523727A/ja active Pending
- 2004-04-19 EP EP04728155A patent/EP1616910A4/en not_active Withdrawn
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JPH05345856A (ja) * | 1992-06-16 | 1993-12-27 | Toyobo Co Ltd | ポリマー複合体、その製造法及びその成形物 |
JPH07324226A (ja) * | 1994-05-31 | 1995-12-12 | Asahi Chem Ind Co Ltd | 経時安定性の高いポリヘキサメチレンアジパミドとポリεカプロアミドとのブレンド繊維の製造方法 |
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CN101121787B (zh) * | 2007-08-10 | 2010-06-02 | 张静焕 | 一种改性铸型尼龙 |
CN107474244A (zh) * | 2017-08-18 | 2017-12-15 | 浙江心源科技有限公司 | 一种双螺杆反应挤出型尼龙弹性体的制备方法 |
CN107474244B (zh) * | 2017-08-18 | 2019-05-10 | 浙江心源科技有限公司 | 一种双螺杆反应挤出型尼龙弹性体的制备方法 |
Also Published As
Publication number | Publication date |
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US20060205892A1 (en) | 2006-09-14 |
CN100460445C (zh) | 2009-02-11 |
JP2006523727A (ja) | 2006-10-19 |
KR100711418B1 (ko) | 2007-05-02 |
CN1537880A (zh) | 2004-10-20 |
US7772329B2 (en) | 2010-08-10 |
KR20060007024A (ko) | 2006-01-23 |
EP1616910A1 (en) | 2006-01-18 |
EP1616910A4 (en) | 2006-05-03 |
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