http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20010011919-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2707056d594790a62947ee030653e6f8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D02G3-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D10B2505-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-098 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06M15-693 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D10-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S57-902 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01D5-088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D07B2501-2046 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D02G3-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D02G3-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D02G3-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01D5-00 |
| filingDate | 1999-07-31^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c480362b600e34cc5ebbdaefab5d5c75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d8bb29d4e8f8f480c73df8755af925c2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7497c93c41d2c75831544f976dfe2101 |
| publicationDate | 2001-02-15^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20010011919-A |
| titleOfInvention | Polyester multifilamentary yarn for tire cords, dipped cord and production thereof |
| abstract | BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber reinforcing material for application to fiber reinforced rubber products such as tires. In the manufacturing method of polyester multifilament yarn for tire cords, (i) 90 mol% or more is polyethylene terephthalate and has an intrinsic viscosity of 0.7 to Melting the polyester resin at 1.2 below 290 ° C., (ii) filtering the molten resin with a filtration residence time of 10 minutes or less, and (i) the number of filtered molten resins is 250-500 and each hole has a diameter. Extruding through a nozzle having a hole length / hole diameter ratio of 2 to 5 with a length of 0.5 to 1.2 mm, and (i) firstly extruded yarn at a temperature of 100 to 195 ° C. in a region of 50 mm or more from directly under the nozzle. Cooling step, (iii) secondary cooling the first cooled yarn with a cooling wind below the glass transition temperature, (iii) winding the secondary cooled yarn so that the winding stress is 0.3 g / d or more, (V) Total draw ratio of wounded yarn Drawing to at least 1.3, and (iii) heat-treating the drawn yarn at a temperature of 150 to 230 ° C., wherein the method for producing a polyester multifilament yarn for tire cords and polyethylene terephthalate of 90 mol% or more. In the polyester multifilament yarn for tire cords, (i) intrinsic viscosity of 0.70 to 1.2, (ii) strength of 5.5 to 8.5 g / d, and (iii) intermediate elongation E0 (under 4.5 g / d load) Elongation) and intermediate elongation E1 (elongation after heat treatment at 0.01 g / d load at 177 ° C for 10 min, elongation under 4.5 g / d load) (E1-E0) provides polyester multifilament yarn for tire cords The tire cord manufactured by the conventional method with the polyester multifilament yarns has (i) strength of 5.0 g / d or more, and (ii) dimensional stability index ( ) Is 7.0% or less, (iv) Elongation is 9.0% or more, and (iv) Medium Elongation E0 (elongation under 4.5 g / d load) and Medium Elongation E1 (heat treatment under 0.01 g / d load at 177 ° C for 10 minutes) After that, the difference (E1-E0) of elongation under 4.5 g / d load satisfies 3% or less.n n n The filament yarns and deep cords of the present invention have a uniform molecular structure, balance high elasticity and low shrinkage properties, and have excellent dimensional stability and fatigue resistance. It can be usefully applied. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100687033-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20200113582-A |
| priorityDate | 1999-07-31^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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