BE737927A - - Google Patents
Info
- Publication number
- BE737927A BE737927A BE737927DA BE737927A BE 737927 A BE737927 A BE 737927A BE 737927D A BE737927D A BE 737927DA BE 737927 A BE737927 A BE 737927A
- Authority
- BE
- Belgium
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
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
- C08G63/08—Lactones or lactides
-
- 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
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides
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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4071668A GB1197368A (en) | 1968-08-26 | 1968-08-26 | Process for the manufacture of Nibs from a Polymer of a beta-Lactone |
| GB4071568A GB1197367A (en) | 1968-08-26 | 1968-08-26 | Process for the manufacture of Articles from a Polymer of a beta-Lactone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE737927A true BE737927A (pl) | 1970-02-25 |
Family
ID=26264487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE737927D BE737927A (pl) | 1968-08-26 | 1969-08-25 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3621003A (pl) |
| AT (1) | AT301882B (pl) |
| BE (1) | BE737927A (pl) |
| CH (1) | CH522010A (pl) |
| DE (1) | DE1943182C3 (pl) |
| ES (1) | ES370816A1 (pl) |
| FR (1) | FR2016389B1 (pl) |
| NL (2) | NL6912914A (pl) |
| SE (1) | SE349822B (pl) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3890283A (en) * | 1973-06-04 | 1975-06-17 | American Cyanamid Co | Process for post-polymerizing polyglycolic acid |
| JP2714454B2 (ja) * | 1988-11-07 | 1998-02-16 | 三井東圧化学株式会社 | 生体吸収性ポリエステルの製造方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2235127A (en) * | 1938-09-21 | 1941-03-18 | Standard Oil Dev Co | Process for removing volatile solvents from polymerized substances |
| US2719776A (en) * | 1949-11-23 | 1955-10-04 | Inventa Ag | Elimination of monomers from lactampolymerization products |
| US2833750A (en) * | 1953-06-17 | 1958-05-06 | Exxon Research Engineering Co | Method for finishing polymers |
| US3156009A (en) * | 1960-12-30 | 1964-11-10 | Standard Oil Co | Devolatilizing extruder |
| GB1072674A (en) * | 1963-08-08 | 1967-06-21 | Calumet & Hecla | Catalytic oxidation of exhaust gases |
| US3469618A (en) * | 1964-10-30 | 1969-09-30 | Snia Viscosa | Solvent removal from polymeric materials |
| NL6508040A (pl) * | 1965-06-23 | 1966-12-27 |
-
0
- NL NL137352D patent/NL137352C/xx active
-
1969
- 1969-08-13 US US849916A patent/US3621003A/en not_active Expired - Lifetime
- 1969-08-25 AT AT813069A patent/AT301882B/de active
- 1969-08-25 BE BE737927D patent/BE737927A/xx unknown
- 1969-08-25 CH CH1286669A patent/CH522010A/de not_active IP Right Cessation
- 1969-08-25 FR FR6929053A patent/FR2016389B1/fr not_active Expired
- 1969-08-25 ES ES370816A patent/ES370816A1/es not_active Expired
- 1969-08-25 NL NL6912914A patent/NL6912914A/xx unknown
- 1969-08-25 DE DE1943182A patent/DE1943182C3/de not_active Expired
- 1969-08-25 SE SE11754/69A patent/SE349822B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2016389A1 (pl) | 1970-05-08 |
| SE349822B (pl) | 1972-10-09 |
| ES370816A1 (es) | 1971-07-01 |
| DE1943182C3 (de) | 1974-01-10 |
| DE1943182A1 (de) | 1970-03-05 |
| CH522010A (de) | 1972-04-30 |
| DE1943182B2 (de) | 1973-05-17 |
| FR2016389B1 (pl) | 1975-09-26 |
| US3621003A (en) | 1971-11-16 |
| NL6912914A (pl) | 1970-03-02 |
| NL137352C (pl) | |
| AT301882B (de) | 1972-09-25 |