Title:
FREEZE INDICATORS WITH A CONTROLLED TEMPERATURE RESPONSE
Document Type and Number:
WIPO Patent Application WO/2011/026020
Kind Code:
A4
Abstract:
A freeze indicator can include an indicator dispersion having an aqueous liquid medium and organic material indicator particles dispersed in the aqueous liquid medium. The indicator dispersion can have an initial appearance before freezing and an irreversibly different appearance after freezing and can exhibit a freeze-onset temperature of about -1.9°C or higher. Some factors helpful to providing a relatively high freeze onset temperature are employment of a proteinaceous ice-nucleating agent, control of pH, use of a protein stabilizer and control of the ratio of protein stabilizer to ice-nucleating agent.
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Inventors:
SMITH DAWN E (US)
LENTZ CARL M (US)
TAYLOR DENE H (US)
OSUNGA YVONNE
HUFFMAN BRIAN (US)
LENTZ CARL M (US)
TAYLOR DENE H (US)
OSUNGA YVONNE
HUFFMAN BRIAN (US)
Application Number:
PCT/US2010/047121
Publication Date:
June 16, 2011
Filing Date:
August 30, 2010
Export Citation:
Assignee:
TEMPTIME CORP (US)
SMITH DAWN E (US)
LENTZ CARL M (US)
TAYLOR DENE H (US)
OSUNGA YVONNE
HUFFMAN BRIAN (US)
SMITH DAWN E (US)
LENTZ CARL M (US)
TAYLOR DENE H (US)
OSUNGA YVONNE
HUFFMAN BRIAN (US)
International Classes:
G01K11/12; G01K11/08; G01K11/16; G01K11/18
Attorney, Agent or Firm:
PITT, Roger (599 Lexington AvenueNew York, NY, US)
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