DE1720623B2 - Verfahren zur Nachkondensation von Polykondensaten - Google Patents
Verfahren zur Nachkondensation von PolykondensatenInfo
- Publication number
- DE1720623B2 DE1720623B2 DE1720623A DE1720623A DE1720623B2 DE 1720623 B2 DE1720623 B2 DE 1720623B2 DE 1720623 A DE1720623 A DE 1720623A DE 1720623 A DE1720623 A DE 1720623A DE 1720623 B2 DE1720623 B2 DE 1720623B2
- Authority
- DE
- Germany
- Prior art keywords
- post
- frequency
- polycondensates
- condensation
- condensed
- 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.)
- Pending
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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/80—Solid-state polycondensation
-
- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/04—Preparatory processes
- C08G69/06—Solid state polycondensation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Artificial Filaments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF0051666 | 1967-02-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1720623A1 DE1720623A1 (de) | 1971-07-01 |
DE1720623B2 true DE1720623B2 (de) | 1975-07-17 |
Family
ID=7104799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1720623A Pending DE1720623B2 (de) | 1967-02-28 | 1967-02-28 | Verfahren zur Nachkondensation von Polykondensaten |
Country Status (10)
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969324A (en) * | 1972-01-13 | 1976-07-13 | Monsanto Company | Continuous process for drying, crystallizing and solid state polymerizing polyesters |
US4254253A (en) * | 1980-02-21 | 1981-03-03 | The Goodyear Tire & Rubber Company | Preparation of high molecular weight polyester |
US5543495A (en) * | 1994-03-08 | 1996-08-06 | E. I. Du Pont De Nemours And Company | Process for increasing the molecular weight of polyamides and other condensation polymers |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB614625A (en) * | 1944-07-04 | 1948-12-20 | Geoffrey William Ison Sheavyn | Improvements in the production of condensation polymers |
US2640142A (en) * | 1946-10-04 | 1953-05-26 | Westinghouse Electric Corp | Microwave heating |
US2585970A (en) * | 1949-06-10 | 1952-02-19 | Us Agriculture | Method and apparatus for heating fluids |
US2738406A (en) * | 1951-09-20 | 1956-03-13 | Gen Precision Lab Inc | Radio frequency vulcanizing |
US3232810A (en) * | 1960-07-06 | 1966-02-01 | Eastman Kodak Co | Method for dielectric sealing of polyester materials |
US3342782A (en) * | 1967-01-30 | 1967-09-19 | Eastman Kodak Co | Polyester prepolymers and processes for their manufacture |
-
1967
- 1967-02-28 DE DE1720623A patent/DE1720623B2/de active Pending
-
1968
- 1968-02-12 NL NL6801965A patent/NL6801965A/xx unknown
- 1968-02-14 US US705455A patent/US3535285A/en not_active Expired - Lifetime
- 1968-02-26 CH CH271468A patent/CH499575A/de not_active IP Right Cessation
- 1968-02-26 AT AT179468A patent/AT278369B/de not_active IP Right Cessation
- 1968-02-26 ES ES350937A patent/ES350937A1/es not_active Expired
- 1968-02-27 LU LU55564D patent/LU55564A1/xx unknown
- 1968-02-28 GB GB9663/68A patent/GB1177884A/en not_active Expired
- 1968-02-28 FR FR1561499D patent/FR1561499A/fr not_active Expired
- 1968-02-28 BE BE711399D patent/BE711399A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE1720623A1 (de) | 1971-07-01 |
CH499575A (de) | 1970-11-30 |
US3535285A (en) | 1970-10-20 |
ES350937A1 (es) | 1969-06-01 |
LU55564A1 (US08063081-20111122-C00044.png) | 1969-10-01 |
AT278369B (de) | 1970-01-26 |
BE711399A (US08063081-20111122-C00044.png) | 1968-08-28 |
FR1561499A (US08063081-20111122-C00044.png) | 1969-03-28 |
GB1177884A (en) | 1970-01-14 |
NL6801965A (US08063081-20111122-C00044.png) | 1968-08-29 |
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