GB1281907A - Process for the preparation of granular polytetrafluoroethylene - Google Patents
Process for the preparation of granular polytetrafluoroethyleneInfo
- Publication number
- GB1281907A GB1281907A GB49070/69A GB4907069A GB1281907A GB 1281907 A GB1281907 A GB 1281907A GB 49070/69 A GB49070/69 A GB 49070/69A GB 4907069 A GB4907069 A GB 4907069A GB 1281907 A GB1281907 A GB 1281907A
- Authority
- GB
- United Kingdom
- Prior art keywords
- buffer
- dispersing agent
- tetrafluoroethylene
- polytetrafluoroethylene
- polymerized
- 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 title abstract 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 title abstract 4
- 239000004810 polytetrafluoroethylene Substances 0.000 title abstract 4
- 239000002270 dispersing agent Substances 0.000 abstract 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract 3
- 238000006116 polymerization reaction Methods 0.000 abstract 2
- 239000004160 Ammonium persulphate Substances 0.000 abstract 1
- 101100188555 Arabidopsis thaliana OCT6 gene Proteins 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
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000003505 polymerization initiator Substances 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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)
- Polymerisation Methods In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US76631468A | 1968-10-09 | 1968-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1281907A true GB1281907A (en) | 1972-07-19 |
Family
ID=25076069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49070/69A Expired GB1281907A (en) | 1968-10-09 | 1969-10-06 | Process for the preparation of granular polytetrafluoroethylene |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3629219A (enExample) |
| JP (2) | JPS4816711B1 (enExample) |
| DE (1) | DE1950767C3 (enExample) |
| FR (1) | FR2020219A1 (enExample) |
| GB (1) | GB1281907A (enExample) |
| NL (1) | NL6914098A (enExample) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3629219A (en) * | 1968-10-09 | 1971-12-21 | Du Pont | Process for increasing the surface area of granular polytetrafluoroethylene resin |
| US3855191A (en) * | 1973-04-04 | 1974-12-17 | Du Pont | Polytetrafluoroethylene molding powders of tetrafluoroethylene and perfluoro (alkyl vinyl ether) copolymer |
| JPS53136013U (enExample) * | 1977-04-04 | 1978-10-27 | ||
| JPS542306U (enExample) * | 1977-06-08 | 1979-01-09 | ||
| JPS5533563U (enExample) * | 1978-08-26 | 1980-03-04 | ||
| US4596837A (en) * | 1982-02-22 | 1986-06-24 | Daikin Industries Ltd. | Semisintered polytetrafluoroethylene article and production thereof |
| US5229480A (en) * | 1992-09-03 | 1993-07-20 | E. I. Du Pont De Nemours And Company | Vinyl fluoride polymerization |
| DE4331971A1 (de) * | 1993-09-21 | 1995-03-23 | Hoechst Ag | Polytetrafluorethylen-Mikropulver, ihre Herstellung und Verwendung |
| DE4332712A1 (de) * | 1993-09-25 | 1995-03-30 | Hoechst Ag | Verfahren zur Herstellung eines modifizierten Polytetrafluorethylens und seine Verwendung |
| JP4080554B2 (ja) * | 1995-12-06 | 2008-04-23 | ダイキン工業株式会社 | テトラフルオロエチレンの乳化重合方法 |
| US7314898B2 (en) * | 2004-12-29 | 2008-01-01 | 3M Innovative Properties Company | Microsphere-filled polytetrafluoroethylene compositions |
| US7485609B2 (en) * | 2005-09-29 | 2009-02-03 | Kimberly-Clark Worldwide, Inc. | Encapsulated liquid cleanser |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2393967A (en) * | 1942-12-24 | 1946-02-05 | Du Pont | Process for polymerizing tetrafluoroethylene |
| US3629219A (en) * | 1968-10-09 | 1971-12-21 | Du Pont | Process for increasing the surface area of granular polytetrafluoroethylene resin |
-
1968
- 1968-10-09 US US766314A patent/US3629219A/en not_active Expired - Lifetime
-
1969
- 1969-09-09 JP JP44071025A patent/JPS4816711B1/ja active Pending
- 1969-09-17 NL NL6914098A patent/NL6914098A/xx unknown
- 1969-10-06 GB GB49070/69A patent/GB1281907A/en not_active Expired
- 1969-10-08 DE DE1950767A patent/DE1950767C3/de not_active Expired
- 1969-10-08 FR FR6934326A patent/FR2020219A1/fr not_active Withdrawn
-
1972
- 1972-12-23 JP JP47128892A patent/JPS4929628B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3629219A (en) | 1971-12-21 |
| JPS4816711B1 (enExample) | 1973-05-24 |
| DE1950767B2 (de) | 1979-03-01 |
| JPS4929628B1 (enExample) | 1974-08-06 |
| NL6914098A (enExample) | 1970-04-13 |
| DE1950767A1 (de) | 1970-07-16 |
| FR2020219A1 (enExample) | 1970-07-10 |
| DE1950767C3 (de) | 1979-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |