GB1378003A - Sealing process - Google Patents
Sealing processInfo
- Publication number
- GB1378003A GB1378003A GB5519571A GB5519571A GB1378003A GB 1378003 A GB1378003 A GB 1378003A GB 5519571 A GB5519571 A GB 5519571A GB 5519571 A GB5519571 A GB 5519571A GB 1378003 A GB1378003 A GB 1378003A
- Authority
- GB
- United Kingdom
- Prior art keywords
- leak
- leaks
- alkenyl
- monomer
- diborane
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/164—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing fluid being introduced in the pipe
-
- 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
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Sealing Material Composition (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
1378003 Leak sealing by polymerization in situ J J PACKO 29 Nov 1971 [9 Dec 1970] 55195/71 Headings C3P and C3R [Also in Divisions F2 and F4] Leaks in vessels are sealed by allowing gaseous polymerizable monomer to escape through the leak, in the presence of a polymerization catalyst, preferably to the ambient environment, and hence polymerize at the site of the leak and form a solid polymeric seal. Vessels specified are pipes, pipelines, conduits, closed containers and tanks; particular applications are the sealing of small leaks in underground fuel gas piping systems and in telephone conduits containing inert gas under pressure. The polymerizable compound is normally mixed with a carrier gas. Classes of such polymerizable compounds are:-mono- and multi-ethylenically unsaturated hydrocarbons, haloalkenes, alkylene oxides, alkylene carbonates, alkenyl nitriles, alkenoic acids, alkynes, aldehydes and ketones, alkenoic acid esters, alkenyl alcohols and esters, alkenyl ethers, organosilanes, five-membered ring compounds containing one hetero-oxygen atom, Group IV organometallic compoundethylenic compound mixtures and oligomers of the preceding classes. In examples, steel pipe with simulated leaks is buried in clay soil and the following monomer/catalyst systems introduced in a nitrogen carrier stream:-isoprene/ aluminium triethyl, ethylene oxide/zinc diethyl, tetrahydrofuran/boron trifluoride (with monomer stream or subsequently), acrylonitrile/ hydrogen peroxide, styrene/diborane, methyl methacrylate-acrylonitrile/butyl borine and styrene-butadiene/diborane.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9661970A | 1970-12-09 | 1970-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1378003A true GB1378003A (en) | 1974-12-18 |
Family
ID=22258254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5519571A Expired GB1378003A (en) | 1970-12-09 | 1971-11-29 | Sealing process |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS5245928B1 (en) |
| AT (1) | AT320105B (en) |
| BE (2) | BE776266A (en) |
| CA (1) | CA956851A (en) |
| CH (1) | CH575001A5 (en) |
| DE (1) | DE2160914C3 (en) |
| DK (1) | DK138558B (en) |
| ES (1) | ES397771A1 (en) |
| FR (1) | FR2120768A5 (en) |
| GB (1) | GB1378003A (en) |
| IT (1) | IT945354B (en) |
| LU (1) | LU64415A1 (en) |
| NL (1) | NL7116812A (en) |
| NO (1) | NO138380C (en) |
| SE (1) | SE386199B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2195416A (en) * | 1986-09-13 | 1988-04-07 | Btr Plc | Internal surface treatment |
| GB2199386A (en) * | 1986-12-23 | 1988-07-06 | British Gas Plc | Sealing pipe joints |
| WO2016203261A1 (en) * | 2015-06-18 | 2016-12-22 | Southern Gas Networks Plc | Sealing method, apparatus and system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS576651U (en) * | 1980-06-12 | 1982-01-13 | ||
| JPS5876443U (en) * | 1981-11-19 | 1983-05-24 | 西川ゴム工業株式会社 | Weather strip connection structure |
| DE3723088A1 (en) * | 1987-07-13 | 1989-01-26 | Hilti Ag | SEALING PROCEDURE |
| JP5308061B2 (en) * | 2008-04-28 | 2013-10-09 | 大阪瓦斯株式会社 | Pipe line sealing method |
-
1971
- 1971-11-26 CA CA128,713A patent/CA956851A/en not_active Expired
- 1971-11-29 GB GB5519571A patent/GB1378003A/en not_active Expired
- 1971-12-03 SE SE1552971A patent/SE386199B/en unknown
- 1971-12-06 BE BE776266A patent/BE776266A/en unknown
- 1971-12-07 LU LU64415D patent/LU64415A1/xx unknown
- 1971-12-07 ES ES397771A patent/ES397771A1/en not_active Expired
- 1971-12-07 NL NL7116812A patent/NL7116812A/xx not_active Application Discontinuation
- 1971-12-08 DE DE19712160914 patent/DE2160914C3/en not_active Expired
- 1971-12-08 DK DK599971A patent/DK138558B/en unknown
- 1971-12-08 NO NO453071A patent/NO138380C/en unknown
- 1971-12-09 JP JP9979971A patent/JPS5245928B1/ja active Pending
- 1971-12-09 FR FR7144230A patent/FR2120768A5/fr not_active Expired
- 1971-12-09 AT AT1060571A patent/AT320105B/en not_active IP Right Cessation
- 1971-12-09 CH CH1807371A patent/CH575001A5/xx not_active IP Right Cessation
- 1971-12-09 IT IT5463171A patent/IT945354B/en active
-
1977
- 1977-08-31 BE BE1008358A patent/BE858315Q/en active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2195416A (en) * | 1986-09-13 | 1988-04-07 | Btr Plc | Internal surface treatment |
| GB2199386A (en) * | 1986-12-23 | 1988-07-06 | British Gas Plc | Sealing pipe joints |
| GB2199386B (en) * | 1986-12-23 | 1991-01-02 | British Gas Plc | Sealing a pipe joint |
| WO2016203261A1 (en) * | 2015-06-18 | 2016-12-22 | Southern Gas Networks Plc | Sealing method, apparatus and system |
| US10995896B2 (en) | 2015-06-18 | 2021-05-04 | Southern Gas Networks Plc | Sealing method, apparatus and system |
Also Published As
| Publication number | Publication date |
|---|---|
| LU64415A1 (en) | 1972-08-23 |
| DK138558C (en) | 1979-03-05 |
| NO138380C (en) | 1978-08-23 |
| ES397771A1 (en) | 1974-06-01 |
| CA956851A (en) | 1974-10-29 |
| DE2160914A1 (en) | 1972-06-22 |
| SE386199B (en) | 1976-08-02 |
| JPS5245928B1 (en) | 1977-11-19 |
| NL7116812A (en) | 1972-06-13 |
| DE2160914B2 (en) | 1979-10-31 |
| AT320105B (en) | 1975-01-27 |
| NO138380B (en) | 1978-05-16 |
| FR2120768A5 (en) | 1972-08-18 |
| DK138558B (en) | 1978-09-25 |
| DE2160914C3 (en) | 1980-07-24 |
| BE776266A (en) | 1972-06-06 |
| IT945354B (en) | 1973-05-10 |
| BE858315Q (en) | 1977-12-16 |
| CH575001A5 (en) | 1976-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |