GB988939A - Process for the polymerisation of glycollide - Google Patents
Process for the polymerisation of glycollideInfo
- Publication number
- GB988939A GB988939A GB2599561A GB2599561A GB988939A GB 988939 A GB988939 A GB 988939A GB 2599561 A GB2599561 A GB 2599561A GB 2599561 A GB2599561 A GB 2599561A GB 988939 A GB988939 A GB 988939A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycollide
- homologue
- polymerization
- effected
- extruder
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K15/00—Making blacksmiths' goods
- B21K15/02—Making blacksmiths' goods horseshoes; appurtenances therefor
-
- 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)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polyesters Or Polycarbonates (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Polyglycollide is made by polymerizing glycollide, alone or in admixture with a homologue thereof, the polymerization being effected continuously in a screw extruder and in the presence of stannous stearate or a catalyst. In the extruder the temperature is graded so that it rises from about 80 DEG C. at the feeding side to a maximum of 190 DEG -225 DEG C. and then falls again. The glycollide homologue may have the formula <FORM:0988939/C3/1> where R is hydrogen, methyl, ethyl or propyl, and is preferably lactide. Polymerization may be effected in the presence of a pigment, dye-stuff, extender, filler or dulling agent (e.g. titanium dioxide, indanthrene brilliant green B or "Monolite fast red ys").
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD7115260 | 1960-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB988939A true GB988939A (en) | 1965-04-14 |
Family
ID=5477571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2599561A Expired GB988939A (en) | 1960-12-12 | 1961-07-18 | Process for the polymerisation of glycollide |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE611444A (en) |
CH (1) | CH404960A (en) |
DD (1) | DD36499A (en) |
DE (1) | DE36499C (en) |
GB (1) | GB988939A (en) |
NL (2) | NL264931A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3440225A (en) * | 1963-03-23 | 1969-04-22 | Wolfen Filmfab Veb | Process for the manufacture of shaped structures from polyglycolides |
DE2162900A1 (en) * | 1970-12-18 | 1972-06-29 | Ethicon, Inc., Somerville, NJ. (V.StA.) | Sterile absorbable surgical sutures |
US3839297A (en) * | 1971-11-22 | 1974-10-01 | Ethicon Inc | Use of stannous octoate catalyst in the manufacture of l(-)lactide-glycolide copolymer sutures |
US4008303A (en) * | 1971-08-30 | 1977-02-15 | American Cyanamid Company | Process for extruding green polyglycolic acid sutures and surgical elements |
US4750910A (en) * | 1986-01-22 | 1988-06-14 | Mitsui Toatsu Chemicals, Incorporated | Indigo blue-colored bioabsorbable surgical fibers and production process thereof |
WO2014180205A1 (en) * | 2013-05-06 | 2014-11-13 | 常州大学 | Method for continuously preparing high molecular weight polyhydroxy acid |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL140261B (en) * | 1969-03-10 | 1973-11-15 | Shell Int Research | PROCESS FOR THE CONTINUOUS POLYMERIZATION OF BETA LACTONES. |
-
0
- NL NL121429D patent/NL121429C/xx active
- NL NL264931D patent/NL264931A/xx unknown
- DD DD36499D patent/DD36499A/xx unknown
- DE DENDAT36499D patent/DE36499C/en not_active Expired - Lifetime
- BE BE611444D patent/BE611444A/xx unknown
-
1961
- 1961-05-18 CH CH583561A patent/CH404960A/en unknown
- 1961-07-18 GB GB2599561A patent/GB988939A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3440225A (en) * | 1963-03-23 | 1969-04-22 | Wolfen Filmfab Veb | Process for the manufacture of shaped structures from polyglycolides |
DE2162900A1 (en) * | 1970-12-18 | 1972-06-29 | Ethicon, Inc., Somerville, NJ. (V.StA.) | Sterile absorbable surgical sutures |
DK152336B (en) * | 1970-12-18 | 1988-02-22 | Ethicon Inc | STERILE ABSORBABLE SURGICAL SUTURE |
US4008303A (en) * | 1971-08-30 | 1977-02-15 | American Cyanamid Company | Process for extruding green polyglycolic acid sutures and surgical elements |
US3839297A (en) * | 1971-11-22 | 1974-10-01 | Ethicon Inc | Use of stannous octoate catalyst in the manufacture of l(-)lactide-glycolide copolymer sutures |
US4750910A (en) * | 1986-01-22 | 1988-06-14 | Mitsui Toatsu Chemicals, Incorporated | Indigo blue-colored bioabsorbable surgical fibers and production process thereof |
WO2014180205A1 (en) * | 2013-05-06 | 2014-11-13 | 常州大学 | Method for continuously preparing high molecular weight polyhydroxy acid |
GB2528814A (en) * | 2013-05-06 | 2016-02-03 | Univ Changzhou | Method for continuously preparing high molecular weight polyhydroxy acid |
Also Published As
Publication number | Publication date |
---|---|
CH404960A (en) | 1965-12-31 |
DD36499A (en) | |
NL264931A (en) | |
DE36499C (en) | |
NL121429C (en) | |
BE611444A (en) |
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