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Patent Searching and Data


Title:
POLYESTER YARN AND A PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2012/036511
Kind Code:
A2
Abstract:
The present invention relates to a polyester yarn which can be used in an airbag fabric, and, more particularly, relates to a polyester yarn which achieves a predetermined optimised range for: the room-temperature strength-elongation index (X0) which expresses the ratio (T0/S0) between the tensile strength (T0) and the tensile elongation (S0) of the yarn as measured at room temperature; and a first high-humidity strength-elongation index (X1) which expresses the ratio (T1/S1) between the tensile strength (T1) and the tensile elongation (S1) of the yarn as measured after a heat treatment at 85°C, 95±5 %RH, for 168 hours, and also relates to a production method for the polyester yarn and to an airbag fabric produced thereby. The polyester yarn of the present invention ensures a low initial modulus together with outstanding high-temperature and high-humidity mechanical properties, and hence when the polyester yarn is used as an airbag fabric it can provide outstanding stowability and shape stability together with an outstanding air-blocking effect while at the same time ensuring safe vehicle occupant protection by minimising impact on passengers.

Inventors:
KIM JAE-HYUNG (KR)
KWAK DONG-JIN (KR)
KIM KI-JEONG (KR)
KIM HEE-JUN (KR)
YOUN JUNG-HOON (KR)
LEE SANG-MOK (KR)
Application Number:
PCT/KR2011/006865
Publication Date:
March 22, 2012
Filing Date:
September 16, 2011
Export Citation:
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Assignee:
KOLON INC (KR)
KIM JAE-HYUNG (KR)
KWAK DONG-JIN (KR)
KIM KI-JEONG (KR)
KIM HEE-JUN (KR)
YOUN JUNG-HOON (KR)
LEE SANG-MOK (KR)
International Classes:
D01F6/62; B29C48/05; B29C48/06; B60R21/16; D01D5/08; D02G3/02; D02J1/22; D03D1/02; D03D15/00; D06M11/77; D06M15/564; D06M15/693
Foreign References:
JPH04214437A1992-08-05
Other References:
See also references of EP 2617881A4
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (649-10Yoksam-dong,Kangnam-Ku, Seoul 135-080, KR)
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Claims: