GB1252302A - - Google Patents
Info
- Publication number
- GB1252302A GB1252302A GB1252302DA GB1252302A GB 1252302 A GB1252302 A GB 1252302A GB 1252302D A GB1252302D A GB 1252302DA GB 1252302 A GB1252302 A GB 1252302A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tetrafluoroethylene
- water
- perfluorinated ether
- aug
- polymerization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- -1 Polytetrafluoroethylene Polymers 0.000 abstract 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- IMBKASBLAKCLEM-UHFFFAOYSA-L ferrous ammonium sulfate (anhydrous) Chemical compound [NH4+].[NH4+].[Fe+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O IMBKASBLAKCLEM-UHFFFAOYSA-L 0.000 abstract 2
- 238000006116 polymerization reaction Methods 0.000 abstract 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 2
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- 239000004160 Ammonium persulphate Substances 0.000 abstract 1
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 abstract 1
- 235000019395 ammonium persulphate Nutrition 0.000 abstract 1
- YOALFLHFSFEMLP-UHFFFAOYSA-N azane;2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoic acid Chemical compound [NH4+].[O-]C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F YOALFLHFSFEMLP-UHFFFAOYSA-N 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000000499 gel Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000000017 hydrogel Substances 0.000 abstract 1
- 230000002209 hydrophobic effect Effects 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F14/18—Monomers containing fluorine
- C08F14/26—Tetrafluoroethene
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1994868 | 1968-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1252302A true GB1252302A (enExample) | 1971-11-03 |
Family
ID=11162559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1252302D Expired GB1252302A (enExample) | 1968-08-08 | 1969-08-08 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3721638A (enExample) |
| BE (1) | BE737228A (enExample) |
| DE (1) | DE1940293C3 (enExample) |
| FR (1) | FR2015296A1 (enExample) |
| GB (1) | GB1252302A (enExample) |
| NL (1) | NL155848B (enExample) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4058578A (en) * | 1975-10-02 | 1977-11-15 | Hoechst Aktiengesellschaft | Process for the manufacture of paste-extrudable polymers of tetrafluoroethylene |
| DE4305619A1 (de) * | 1993-02-24 | 1994-08-25 | Hoechst Ag | Feinteilige Dispersionen von thermoplastischen Fluorpolymeren |
| EP0804493B1 (en) * | 1995-01-18 | 1999-08-18 | W.L. Gore & Associates, Inc. | Microemulsion polymerization systems for fluoromonomers |
| CA2207035C (en) * | 1995-01-18 | 2004-04-20 | W.L. Gore & Associates, Inc. | Microemulsion polymerization systems for tetrafluoroethylene |
| US5895799A (en) * | 1995-01-18 | 1999-04-20 | W. L. Gore & Associates, Inc. | Microemulsion polymerization process for the production of small polytetrafluoroethylene polymer particles |
| US6046271A (en) * | 1995-01-18 | 2000-04-04 | W. L. Gore & Associates, Inc. | Microemulsion polymerization systems for the production of small melt-processible fluoropolymer particles |
| US6015838A (en) * | 1996-11-04 | 2000-01-18 | 3M Innovative Properties Company | Aqueous film-forming foam compositions |
| US5998521A (en) * | 1996-11-04 | 1999-12-07 | 3M Innovative Properties Company | Aqueous fluoropolymer compositions and method of preparing the same |
| EP3733741A4 (en) * | 2018-02-07 | 2021-09-08 | Daikin Industries, Ltd. | PROCEDURES FOR ELIMINATING HYDROPHILIC COMPOUNDS AND PROCEDURES FOR ODOR REMOVAL |
-
1969
- 1969-08-04 NL NL6911846.A patent/NL155848B/xx unknown
- 1969-08-06 US US00848772A patent/US3721638A/en not_active Expired - Lifetime
- 1969-08-07 BE BE737228D patent/BE737228A/xx unknown
- 1969-08-07 FR FR6927146A patent/FR2015296A1/fr not_active Withdrawn
- 1969-08-07 DE DE1940293A patent/DE1940293C3/de not_active Expired
- 1969-08-08 GB GB1252302D patent/GB1252302A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6911846A (enExample) | 1970-02-10 |
| BE737228A (enExample) | 1970-02-09 |
| DE1940293C3 (de) | 1980-10-30 |
| US3721638A (en) | 1973-03-20 |
| FR2015296A1 (enExample) | 1970-04-24 |
| NL155848B (nl) | 1978-02-15 |
| DE1940293A1 (de) | 1970-10-08 |
| DE1940293B2 (de) | 1980-02-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |