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公开(公告)号：US10981318B2
公开(公告)日：2021-04-20
申请号：US15783165
申请日：2017-10-13
摘要： Rheological measurement systems for use with systems including pressurized polymer melts and/or other viscous materials are described. In one embodiment, a rheometer is connected to an associated system with a bent, curved, or bendable tube to permit the rheometer to measure rheological properties in locations where the rheometer could not otherwise be located due to the presence of obstructions. Embodiments including rigid straight tubes for connecting a rheometer to an associated system are also described. In another embodiment, a flow-through rheometer is connected to an industry standard ½-20 thermowell aperture that is typically used for attaching temperature and pressure probes to a vessel containing a viscous material such as an extruder or injection molding system.
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公开(公告)号：US11981066B2
公开(公告)日：2024-05-14
申请号：US17231461
申请日：2021-04-15
CPC分类号： B29C48/92 , B29C37/00 , B29C45/7646 , G01N11/04 , G01N11/08 , B29C2037/903 , B29C2945/7605 , B29C2948/922 , G01N2011/002
摘要： Rheological measurement systems for use with systems including pressurized polymer melts and/or other viscous materials are described. In one embodiment, a rheometer is connected to an associated system with a bent, curved, or bendable tube to permit the rheometer to measure rheological properties in locations where the rheometer could not otherwise be located due to the presence of obstructions. Embodiments including rigid straight tubes for connecting a rheometer to an associated system are also described. In another embodiment, a flow-through rheometer is connected to an industry standard ½-20 thermowell aperture that is typically used for attaching temperature and pressure probes to a vessel containing a viscous material such as an extruder or injection molding system. The rheological measurement systems described can have improved tube resistance and thermal strength.
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3.发明申请公开(公告)号：US20200209129A1
公开(公告)日：2020-07-02
申请号：US16643036
申请日：2018-08-02
IPC分类号： G01N11/02
摘要： Methods and apparatus are disclosed for correcting for gravitational force variation in measuring the melt flow index of a polymer at a location. For example, ample, some embodiments may involve determining a value representing an extent to which gravitational force at the location varies from standard gravity, such as based at least in part upon the latitude of the location. The value may be used in correcting the melt flow index measured for the polymer using a plastometer at the location.
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公开(公告)号：US20240253292A1
公开(公告)日：2024-08-01
申请号：US18629211
申请日：2024-04-08
CPC分类号： B29C48/92 , B29C37/00 , B29C45/7646 , G01N11/04 , G01N11/08 , B29C2037/903 , B29C2945/7605 , B29C2948/922 , G01N2011/002
摘要： Rheological measurement systems for use with systems including pressurized polymer melts and/or other viscous materials are described. In one embodiment, a rheometer is connected to an associated system with a bent, curved, or bendable tube to permit the rheometer to measure rheological properties in locations where the rheometer could not otherwise be located due to the presence of obstructions. Embodiments including rigid straight tubes for connecting a rheometer to an associated system are also described. In another embodiment, a flow-through rheometer is connected to an industry standard ½-20 thermowell aperture that is typically used for attaching temperature and pressure probes to a vessel containing a viscous material such as an extruder or injection molding system.
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5.发明申请公开(公告)号：US20230041489A1
公开(公告)日：2023-02-09
申请号：US17967248
申请日：2022-10-17
摘要： Methods and apparatus are disclosed for correcting for gravitational force variation in measuring the melt flow index of a polymer at a location. For example, some embodiments may involve determining a value representing an extent to which gravitational force at the location varies from standard gravity, such as based at least in part upon the latitude of the location. The value may be used in correcting the melt flow index measured for the polymer using a plastometer at the location.
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公开(公告)号：US20210229337A1
公开(公告)日：2021-07-29
申请号：US17231461
申请日：2021-04-15
摘要： Rheological measurement systems for use with systems including pressurized polymer melts and/or other viscous materials are described. In one embodiment, a rheometer is connected to an associated system with a bent, curved, or bendable tube to permit the rheometer to measure rheological properties in locations where the rheometer could not otherwise be located due to the presence of obstructions. Embodiments including rigid straight tubes for connecting a rheometer to an associated system are also described. In another embodiment, a flow-through rheometer is connected to an industry standard ½-20 thermowell aperture that is typically used for attaching temperature and pressure probes to a vessel containing a viscous material such as an extruder or injection molding system.
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7.发明授权公开(公告)号：US12055470B2
公开(公告)日：2024-08-06
申请号：US17967248
申请日：2022-10-17
CPC分类号： G01N11/02 , G01N2011/0006
摘要： Methods and apparatus are disclosed for correcting for gravitational force variation in measuring the melt flow index of a polymer at a location. For example, some embodiments may involve determining a value representing an extent to which gravitational force at the location varies from standard gravity, such as based at least in part upon the latitude of the location. The value may be used in correcting the melt flow index measured for the polymer using a plastometer at the location.
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8.发明授权公开(公告)号：US11499901B2
公开(公告)日：2022-11-15
申请号：US16643036
申请日：2018-08-02
摘要： Methods and apparatus are disclosed for correcting for gravitational force variation in measuring the melt flow index of a polymer at a location. For example, ample, some embodiments may involve determining a value representing an extent to which gravitational force at the location varies from standard gravity, such as based at least in part upon the latitude of the location. The value may be used in correcting the melt flow index measured for the polymer using a plastometer at the location.
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公开(公告)号：US20180104881A1
公开(公告)日：2018-04-19
申请号：US15783165
申请日：2017-10-13
CPC分类号： B29C48/92 , B29C37/00 , B29C45/7646 , B29C2037/903 , B29C2945/7605 , B29C2948/922 , G01N11/04 , G01N11/08 , G01N2011/002
摘要： Rheological measurement systems for use with systems including pressurized polymer melts and/or other viscous materials are described. In one embodiment, a rheometer is connected to an associated system with a bent, curved, or bendable tube to permit the rheometer to measure rheological properties in locations where the rheometer could not otherwise be located due to the presence of obstructions. Embodiments including rigid straight tubes for connecting a rheometer to an associated system are also described. In another embodiment, a flow-through rheometer is connected to an industry standard ½-20 thermowell aperture that is typically used for attaching temperature and pressure probes to a vessel containing a viscous material such as an extruder or injection molding system.
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