SYSTEM FOR AND METHOD OF CHANGING TEMPERATURES OF SUBSTANCES
    2.
    发明申请
    SYSTEM FOR AND METHOD OF CHANGING TEMPERATURES OF SUBSTANCES 审中-公开
    改变物质温度的系统和方法

    公开(公告)号:US20140220579A1

    公开(公告)日:2014-08-07

    申请号:US14119638

    申请日:2011-05-24

    Inventor: Gert de Vos

    Abstract: A temperature control device for controlling a temperature of a substance to obtain a first temperature and to change to a second temperature has first and second heating blocks and a heating device. The heating device heats the first and second heating blocks to the first and second temperatures, respectively. The temperature control device has a first material opposing the first heating block to define a first space between them arranged to receive the substance and to define a first temperature zone having substantially the first temperature. The temperature control device has a second material opposing the second heating block such as to define a second space between them arranged to receive the substance and define a second temperature zone having substantially the second temperature, the first and second spaces being arranged such that the substance can be moved from the first temperature zone to the second temperature zone.

    Abstract translation: 用于控制物质的温度以获得第一温度并变为第二温度的温度控制装置具有第一和第二加热块和加热装置。 加热装置将第一和第二加热块分别加热到第一和第二温度。 温度控制装置具有与第一加热块相对的第一材料,以在它们之间限定布置成接收物质的第一空间并且限定具有基本上第一温度的第一温度区。 温度控制装置具有与第二加热块相对的第二材料,以便在它们之间限定布置成接收物质的第二空间并限定具有基本上第二温度的第二温度区,第一和第二空间被布置成使物质 可以从第一温度区移动到第二温度区。

    Process for purifying bromochloro-trifluoroethane by azeotropic distillation
    4.
    发明授权
    Process for purifying bromochloro-trifluoroethane by azeotropic distillation 失效
    通过碱性蒸馏纯化溴化三氟乙酸的方法

    公开(公告)号:US3817842A

    公开(公告)日:1974-06-18

    申请号:US35474373

    申请日:1973-04-26

    Applicant: PCR

    Inventor: REED T

    CPC classification number: C07C17/386 C07C19/14

    Abstract: A PROCESS FOR PURIFYING BROMOCHLOROTRIFLUOROETHANE IS DISCLOSED, WHEREIN 1,2-DICHLOROHEXAFLUOROCYCLOBUTANE IMPURITY IS REMOVED FROM THE BROMOCHLOROTRIFLUOROETHANE BY FORMING A MAXIMUM BOILING AZEOTROPE OF THE BROMOCHLOROTRIFLUOROETHANE WITH ACETONE OR TETRAHYDROFURAN AND THEREAFTER DISTILLING, UNDER REFLUXING CONDITIONS, THE RESULTING AZEOTROPIC COMPOSITION UNTIL THE RESIDUE CONTAINS LESS THAN 0.01% OF THE DIMER IMPURITY. PROCESS OF THE PRESENT INVENTION ALLOWS THE PRODUCTION OF HALOTHANE OF IMPROVED PURITY, SUITABLE FOR USE AS AN ANESTHETIC.

    Bis-triazine compounds
    6.
    发明授权
    Bis-triazine compounds 失效
    双 - 三嗪化合物

    公开(公告)号:US3888854A

    公开(公告)日:1975-06-10

    申请号:US20021271

    申请日:1971-11-18

    Applicant: PCR

    CPC classification number: C07D251/24

    Abstract: Compounds of the formula

    ARE DISCLOSED, WHEREIN R1, R2 and R3 are fluorinated or chlorofluorinated alkyl or ether or polyether groups. These compounds are thermally and oxidatively highly stable fluids, useful as hydraulic fluids in, e.g., aircraft.

    Trisubstituted triazines
    8.
    发明授权
    Trisubstituted triazines 失效
    TRISUBSTITUTED TRIAZINES

    公开(公告)号:US3654273A

    公开(公告)日:1972-04-04

    申请号:US3654273D

    申请日:1968-05-31

    Applicant: PCR

    CPC classification number: C10M3/00 C10M2215/222 C10N2240/08

    Abstract: A SERIES OF HIGH MOLECULAR WEIGHT FLUORINATED ALKYL TRISUBTITUTED TRIAZINES IS DISLCOSED. THEY ARE FLUIDS HAVING OUTSTANDING FIRE RESISTANCE, THERMAL STABILITY, LUBRICITY, AND WHICH EXHIBIT A WIDE FLUID RANGE, WHICH MAY BE VARIED DEPENDENT UPON THE NATURE OF CERTAIN DISCLOSED POLYFLUOROALKYL SUBSTITUENTS ON THE 2,4 AND POSITION OF THE S-TRIAZINE RING.

Patent Agency Ranking