ES370816A1 - Un procedimiento para desgasificar un polimero de beta-la- ctona. - Google Patents

Un procedimiento para desgasificar un polimero de beta-la- ctona.

Info

Publication number: ES370816A1
Authority: ES; Spain
Prior art keywords: degassing; polymer; polypivalolactone; thermal stabilization; beta
Prior art date: 1968-08-26
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

Application number

ES370816A

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Shell Internationale Research Maatschappij BV

Original Assignee

Shell Internationale Research Maatschappij BV

Priority date (The priority date 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 date listed.)

1968-08-26

Filing date

1969-08-25

Publication date

1971-07-01

1968-08-26 Priority claimed from GB4071568A external-priority patent/GB1197367A/en

1968-08-26 Priority claimed from GB4071668A external-priority patent/GB1197368A/en

1969-08-25 Application filed by Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV

1971-07-01 Publication of ES370816A1 publication Critical patent/ES370816A1/es

Status Expired legal-status Critical Current

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)

ES370816A 1968-08-26 1969-08-25 Un procedimiento para desgasificar un polimero de beta-la- ctona. Expired ES370816A1 (es)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB4071568A GB1197367A (en)	1968-08-26	1968-08-26	Process for the manufacture of Articles from a Polymer of a beta-Lactone
GB4071668A GB1197368A (en)	1968-08-26	1968-08-26	Process for the manufacture of Nibs from a Polymer of a beta-Lactone

Publications (1)

Publication Number	Publication Date
ES370816A1 true ES370816A1 (es)	1971-07-01

Family

ID=26264487

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ES370816A Expired ES370816A1 (es)	1968-08-26	1969-08-25	Un procedimiento para desgasificar un polimero de beta-la- ctona.

Country Status (9)

Country	Link
US (1)	US3621003A (es)
AT (1)	AT301882B (es)
BE (1)	BE737927A (es)
CH (1)	CH522010A (es)
DE (1)	DE1943182C3 (es)
ES (1)	ES370816A1 (es)
FR (1)	FR2016389B1 (es)
NL (2)	NL6912914A (es)
SE (1)	SE349822B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 (es) *	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 FR FR6929053A patent/FR2016389B1/fr not_active Expired
- 1969-08-25 DE DE1943182A patent/DE1943182C3/de not_active Expired
- 1969-08-25 NL NL6912914A patent/NL6912914A/xx unknown
- 1969-08-25 CH CH1286669A patent/CH522010A/de not_active IP Right Cessation
- 1969-08-25 BE BE737927D patent/BE737927A/xx unknown
- 1969-08-25 SE SE11754/69A patent/SE349822B/xx unknown
- 1969-08-25 ES ES370816A patent/ES370816A1/es not_active Expired

Also Published As

Publication number	Publication date
FR2016389A1 (es)	1970-05-08
CH522010A (de)	1972-04-30
DE1943182C3 (de)	1974-01-10
AT301882B (de)	1972-09-25
NL137352C (es)
BE737927A (es)	1970-02-25
FR2016389B1 (es)	1975-09-26
DE1943182B2 (de)	1973-05-17
NL6912914A (es)	1970-03-02
DE1943182A1 (de)	1970-03-05
SE349822B (es)	1972-10-09
US3621003A (en)	1971-11-16

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