Thermal measuring and testing – Transformation point determination – Between gaseous and liquid states
Reexamination Certificate
2007-02-13
2009-06-16
Caputo, Lisa M (Department: 2855)
Thermal measuring and testing
Transformation point determination
Between gaseous and liquid states
C374S102000, C374S010000, C374S001000, C374S043000
Reexamination Certificate
active
07547137
ABSTRACT:
It is discovered that a range of showing a state in which a sample is at a constant temperature at a freezing temperature by a latent heat can be specified from a result of a differential scanning calorimetry in a cooling procedure and a method of acquiring the freezing point of the sample from data in the range is shown. For example, an output temperature of an intersection constituted by a tangential line extrapolated from a DSC curve, an output temperature curve, and a base line or an extension of a range brought into a liquid state including a supercooled state is read, and a method of analyzing the DSC curve, the output temperature curve constituting the freezing point of the sample by a temperature of the intersection is discovered and adopted.
REFERENCES:
patent: 4601587 (1986-07-01), Mathiprakasam
patent: 5711604 (1998-01-01), Nakamura
patent: 2008/0049810 (2008-02-01), Schick
patent: 2000-028559 (2000-01-01), None
Japanese Industrial Standards JIS K 7121: 1987, “transition temperature measuring method of plastic” (paragraphs 4-5, Fig. 2, example of method of acquiring crystallizing temperature).
ISO 11357-1: 1997, “Plastics-Differential scanning calorimetry (DSC)-Part 1: General principles,” p. 33. 10 characteristic temperatures, p. 5, 8. 2 Temperature calibration.
Japanese Industrial Standards JIS C 1602: 1995 thermocouple (paragraph 44, reference 2 Fig. 1).
Japanese Industrial Standards JIS Z 3198-1: 2003, “lead free solder testing method-part 1: melting temperature range measuring method”.
Brinks Hofer Gilson & Lione
Caputo Lisa M
Jagan Mirellys
SII Nano Technology Inc.
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