Vapor pressure depressant and use thereof
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United States of America Patent
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Issued Date -
Jan 19, 2006
app pub date -
Nov 11, 2003
filing date -
Nov 11, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A vapor pressure reducing agent for polyurethane foam, comprising at least one compound represented by the following formula (1): wherein R.sup.1, R.sup.2 and R.sup.3 represent a straight-chain alkyl group or branched-chain alkyl group having 2 to 5 carbon atoms, R.sup.1, R.sup.2 and R.sup.3 may be the same or different, with the proviso that the compound wherein R.sup.1, R.sup.2 and R.sup.3 are all ethyl groups is excluded, the compound having a total acid content of 650 mg KOH or less as measured in accordance with MIL H-19457; and a premix composition for producing polyurethane foam, comprising a polyol, a curing catalyst, 1,1,1,3,3-pentafluoropropane, a foaming stabilizer, and the vapor pressure reducing agent described above.
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