CH644692A5 - Process and device for measuring the rise rate of an expanding polymer foam - Google Patents
Process and device for measuring the rise rate of an expanding polymer foam Download PDFInfo
- Publication number
- CH644692A5 CH644692A5 CH36080A CH36080A CH644692A5 CH 644692 A5 CH644692 A5 CH 644692A5 CH 36080 A CH36080 A CH 36080A CH 36080 A CH36080 A CH 36080A CH 644692 A5 CH644692 A5 CH 644692A5
- Authority
- CH
- Switzerland
- Prior art keywords
- foam
- time
- reaction mixture
- container
- pulse
- Prior art date
Links
- 239000006260 foam Substances 0.000 title claims description 73
- 238000000034 method Methods 0.000 title claims description 32
- 229920000642 polymer Polymers 0.000 title claims description 22
- 239000011541 reaction mixture Substances 0.000 claims description 9
- 238000002592 echocardiography Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 22
- 238000012360 testing method Methods 0.000 description 16
- 239000000376 reactant Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000011495 polyisocyanurate Substances 0.000 description 3
- 229920000582 polyisocyanurate Polymers 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 238000011179 visual inspection Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 229920005862 polyol Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010000060 Abdominal distension Diseases 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 208000024330 bloating Diseases 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010961 commercial manufacture process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/44—Resins; Plastics; Rubber; Leather
- G01N33/442—Resins; Plastics
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
- G01F23/2962—Measuring transit time of reflected waves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02836—Flow rate, liquid level
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US416479A | 1979-01-17 | 1979-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH644692A5 true CH644692A5 (en) | 1984-08-15 |
Family
ID=21709490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH36080A CH644692A5 (en) | 1979-01-17 | 1980-01-16 | Process and device for measuring the rise rate of an expanding polymer foam |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH644692A5 (fr) |
| DE (1) | DE3001602A1 (fr) |
| FR (1) | FR2447030A1 (fr) |
| NL (1) | NL8000321A (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2499294A1 (fr) * | 1981-02-04 | 1982-08-06 | Framatome Sa | Procede et dispositif de surveillance des barres de controles d'un reacteur nucleaire |
| DE4004683A1 (de) * | 1990-02-15 | 1991-08-22 | Egner Siegfried | Vorrichtung zur begrenzung des abflusses eines wasserbeckens |
| JP3063792B2 (ja) * | 1991-06-25 | 2000-07-12 | オリンパス光学工業株式会社 | 超音波液面計測装置 |
| DE4243172A1 (de) * | 1992-12-19 | 1994-06-30 | Kleine Franz Maschf | Verfahren und Vorrichtung zur Bestimmung des Bodenabstandes einer Ultraschalleinrichtung |
| DE10208952B4 (de) * | 2002-02-28 | 2004-04-08 | Bayer Ag | Screeningverfahren zur Herstellung und Charakterisierung von Polyurethan-Schaumstoffen |
| DE102013013386A1 (de) * | 2013-08-10 | 2015-02-26 | Format Messtechnik Gmbh | Vorrichtung und Verfahren zur Erfassung des Expansionsverhaltens von Einkomponenten-Kunststoffschäumen |
| DE102017215394A1 (de) * | 2017-09-04 | 2019-03-07 | Bayerische Motoren Werke Aktiengesellschaft | Vorrichtung zur Messung und/oder Erfassung eines Schäumungsverhaltens eines Schaums |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3223964A (en) * | 1962-06-27 | 1965-12-14 | Stadlin Louis | Ultrasonic material measuring and control system |
| FR1504446A (fr) * | 1966-02-08 | 1967-12-08 | Electronique Appliquee | Perfectionnements aux systèmes de jauges de niveau à ultra-sons |
| FR1514156A (fr) * | 1966-11-08 | 1968-02-23 | Realisations Ultrasoniques Sa | Appareil de mesure de niveaux par réflexion d'impulsions ultrasonores |
| US3985030A (en) * | 1974-10-29 | 1976-10-12 | William Mcgeoch & Company | Ultrasonic acoustic pulse echo ranging system |
| US4000650B1 (en) * | 1975-03-20 | 1995-11-14 | Endress Hauser Gmbh Co | Method and apparatus for ultrasonic material level measurement |
| CH607002A5 (fr) * | 1976-06-09 | 1978-11-30 | Endress G H & Co | |
| JPS53118161A (en) * | 1977-03-25 | 1978-10-16 | Sumitomo Metal Ind | Measuring method of slug forming by micro wave level meter |
-
1980
- 1980-01-16 CH CH36080A patent/CH644692A5/de not_active IP Right Cessation
- 1980-01-16 FR FR8000905A patent/FR2447030A1/fr active Granted
- 1980-01-17 NL NL8000321A patent/NL8000321A/nl not_active Application Discontinuation
- 1980-01-17 DE DE19803001602 patent/DE3001602A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| NL8000321A (nl) | 1980-07-21 |
| DE3001602A1 (de) | 1980-07-31 |
| FR2447030A1 (fr) | 1980-08-14 |
| FR2447030B1 (fr) | 1983-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUE | Assignment |
Owner name: THE DOW CHEMICAL COMPANY |
|
| PL | Patent ceased |