Method for manufacturing thermally expandable base material for vehicle interior and method for manufacturing base material for vehicle interior using same
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United States of America Patent
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Jul 10, 2012
Grant Date -
Nov 3, 2011
app pub date -
Jul 11, 2011
filing date -
Aug 7, 2009
priority date (Note) -
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Abstract
A method for producing a thermally expandable base material for a vehicle interior, the method includes needling a web to produce a fiber mat. The web includes an inorganic fiber, a thermoplastic resin fiber, and a thermally expandable microcapsule. The fiber mat is heated to a temperature at which the thermoplastic resin fiber is melt and which is lower than a thermal expansion starting temperature of the thermally expandable microcapsule. The fiber mat is hot-pressed. The fiber mat is cooled.
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