{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "The present invention provides a polyester yarn, wherein a room-temperature strength-elongation index (X 0 ) indicating a ratio (T°/S°) of tensile strength (T°) to tensile elongation (S 0 ) of the polyester yarn, measured at room temperature, and a primary high-humidity strength-elongation index (X…",
  "path": "/patents/988418",
  "publishedAt": "2013-07-24T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B29C48/05",
    "KOLON INC [KR]"
  ],
  "textContent": "The present invention provides a polyester yarn, wherein a room-temperature strength-elongation index (X 0 ) indicating a ratio (T°/S°) of tensile strength (T°) to tensile elongation (S 0 ) of the polyester yarn, measured at room temperature, and a primary high-humidity strength-elongation index (X 1 ) indicating a ratio (T 1 /S 1 ) of tensile strength (T 1 ) to tensile elongation (S 1 ) of the polyester yarn, measured after heat-treating the polyester yarn under conditions of a temperature of 85°C and a relative humidity (RH) of 95±5% for 168 hours, are optimized in a predetermined range. The polyester yarn is advantageous in that, since it has a low initial Young's modulus and exhibits excellent mechanical under severe conditions of high temperature and high humidity, when it is used for a fabric for an airbag, the fabric can exhibit excellent storability, shape stability and air blocking effects, and can minimize the impact applied to an occupant, thereby protecting the occupant safely.",
  "title": "POLYESTER YARN AND A PRODUCTION METHOD THEREFOR"
}