ZA736075B - Process for increasing molecular weight of polymers - Google Patents
Process for increasing molecular weight of polymersInfo
- Publication number
- ZA736075B ZA736075B ZA736075A ZA736075A ZA736075B ZA 736075 B ZA736075 B ZA 736075B ZA 736075 A ZA736075 A ZA 736075A ZA 736075 A ZA736075 A ZA 736075A ZA 736075 B ZA736075 B ZA 736075B
- Authority
- ZA
- South Africa
- Prior art keywords
- polymers
- molecular weight
- increasing molecular
- increasing
- weight
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C08G81/021—Block or graft polymers containing only sequences of polymers of C08C or C08F
- C08G81/022—Block or graft polymers containing only sequences of polymers of C08C or C08F containing sequences of polymers of conjugated dienes and of polymers of alkenyl aromatic compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/30—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
- C08C19/42—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups
- C08C19/44—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
-
- 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
- C08F8/00—Chemical modification by after-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Graft Or Block Polymers (AREA)
- Polymerisation Methods In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00294413A US3813455A (en) | 1972-10-02 | 1972-10-02 | Process for increasing molecular weight of live polymers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA736075B true ZA736075B (en) | 1974-08-28 |
Family
ID=23133308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA736075A ZA736075B (en) | 1972-10-02 | 1973-09-04 | Process for increasing molecular weight of polymers |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3813455A (xx) |
| JP (1) | JPS5511124B2 (xx) |
| AU (1) | AU475902B2 (xx) |
| BE (1) | BE805589A (xx) |
| BR (1) | BR7307594D0 (xx) |
| CA (1) | CA1013894A (xx) |
| DE (1) | DE2344784C2 (xx) |
| ES (1) | ES419239A1 (xx) |
| FR (1) | FR2201301B1 (xx) |
| GB (1) | GB1399205A (xx) |
| IT (1) | IT996232B (xx) |
| NL (1) | NL173409C (xx) |
| ZA (1) | ZA736075B (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4086406A (en) * | 1975-12-22 | 1978-04-25 | Phillips Petroleum Company | Coupling lithium-initiated polymer with a vinylhalomethylarene |
| JPS61291610A (ja) * | 1985-06-18 | 1986-12-22 | Japan Synthetic Rubber Co Ltd | ブロツク共重合体およびその組成物 |
| US4730025A (en) * | 1986-09-22 | 1988-03-08 | The Goodyear Tire & Rubber Company | Hexachlorocyclopentadiene end group polymers |
| AU605553B2 (en) * | 1988-01-19 | 1991-01-17 | Shell Internationale Research Maatschappij B.V. | Block copolymer composition and process for the preparation thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3135716A (en) * | 1958-11-06 | 1964-06-02 | Phillips Petroleum Co | Process for preparing terminally reactive polymers |
| US3078254A (en) * | 1959-07-20 | 1963-02-19 | Phillips Petroleum Co | High molecular polymers and method for their preparation |
| FR1374395A (fr) * | 1962-08-09 | 1964-10-09 | Phillips Petroleum Co | Perfectionnements à la production de polymères diéniques ramifiés |
| GB1093472A (en) * | 1964-01-02 | 1967-12-06 | Monsanto Co | Anionic polymerisation process |
| FR1450207A (fr) * | 1964-11-02 | 1966-05-06 | Phillips Petroleum Co | Procédés de fabrication de cis-polybutadiènes ayant une faible tendance à s'écouler à froid et nouveaux produits ainsi obtenus |
| US3506639A (en) * | 1968-02-01 | 1970-04-14 | Firestone Tire & Rubber Co | Process for increasing molecular weight of live polymers |
| US3551392A (en) * | 1968-09-12 | 1970-12-29 | Shell Oil Co | Process for the preparation of branched conjugated diene polymers |
| CA973300A (en) * | 1970-09-04 | 1975-08-19 | Henry L. Hsieh | ESTERS OF .alpha.,.beta.-UNSATURATED ACIDS AS COUPLING AGENTS FOR ALKALI METAL CONTAINING POLYMERS |
-
1972
- 1972-10-02 US US00294413A patent/US3813455A/en not_active Expired - Lifetime
-
1973
- 1973-09-04 ZA ZA736075A patent/ZA736075B/xx unknown
- 1973-09-05 DE DE2344784A patent/DE2344784C2/de not_active Expired
- 1973-09-05 CA CA180,334A patent/CA1013894A/en not_active Expired
- 1973-09-10 AU AU60154/73A patent/AU475902B2/en not_active Expired
- 1973-09-12 GB GB4279473A patent/GB1399205A/en not_active Expired
- 1973-09-28 BR BR7594/73A patent/BR7307594D0/pt unknown
- 1973-09-28 FR FR7334875A patent/FR2201301B1/fr not_active Expired
- 1973-10-01 JP JP10940773A patent/JPS5511124B2/ja not_active Expired
- 1973-10-01 IT IT52851/73A patent/IT996232B/it active
- 1973-10-02 NL NLAANVRAGE7313542,A patent/NL173409C/xx not_active IP Right Cessation
- 1973-10-02 ES ES419239A patent/ES419239A1/es not_active Expired
- 1973-10-02 BE BE136281A patent/BE805589A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU6015473A (en) | 1975-03-13 |
| CA1013894A (en) | 1977-07-12 |
| BE805589A (fr) | 1974-02-01 |
| FR2201301B1 (xx) | 1978-10-27 |
| IT996232B (it) | 1975-12-10 |
| ES419239A1 (es) | 1976-06-01 |
| GB1399205A (en) | 1975-06-25 |
| AU475902B2 (en) | 1976-09-09 |
| NL7313542A (xx) | 1974-04-04 |
| NL173409C (nl) | 1984-01-16 |
| FR2201301A1 (xx) | 1974-04-26 |
| NL173409B (nl) | 1983-08-16 |
| BR7307594D0 (pt) | 1974-09-05 |
| DE2344784C2 (de) | 1982-07-15 |
| JPS5511124B2 (xx) | 1980-03-22 |
| US3813455A (en) | 1974-05-28 |
| DE2344784A1 (de) | 1974-04-11 |
| JPS4972386A (xx) | 1974-07-12 |
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