CH669952A5 - Alpha chloro-acrylic or crotonic acid prodn. - by treating 2,3-di:chloropropionic or butyric acid with aq. base, de-hydro-chlorinating prod. and acidifying - Google Patents
Alpha chloro-acrylic or crotonic acid prodn. - by treating 2,3-di:chloropropionic or butyric acid with aq. base, de-hydro-chlorinating prod. and acidifying Download PDFInfo
- Publication number
- CH669952A5 CH669952A5 CH4296/85A CH429685A CH669952A5 CH 669952 A5 CH669952 A5 CH 669952A5 CH 4296/85 A CH4296/85 A CH 4296/85A CH 429685 A CH429685 A CH 429685A CH 669952 A5 CH669952 A5 CH 669952A5
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- acrylic
- mixture
- poly
- alkyl ester
- 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
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/377—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
-
- 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
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/04—Acids, Metal salts or ammonium salts thereof
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3438109 | 1984-10-18 | ||
DE3439762 | 1984-10-31 | ||
DE3507025 | 1985-02-28 | ||
GB8814303A GB2219800B (en) | 1984-10-18 | 1988-06-16 | Process for the production of polylactones of poly[-alpha-hydroxy-(acrylic and /or crotonic )acid] |
Publications (1)
Publication Number | Publication Date |
---|---|
CH669952A5 true CH669952A5 (en) | 1989-04-28 |
Family
ID=27433216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH4296/85A CH669952A5 (en) | 1984-10-18 | 1985-10-04 | Alpha chloro-acrylic or crotonic acid prodn. - by treating 2,3-di:chloropropionic or butyric acid with aq. base, de-hydro-chlorinating prod. and acidifying |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE1002088A3 (fr) |
CH (1) | CH669952A5 (fr) |
DE (1) | DE3820785C2 (fr) |
FR (1) | FR2633628B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3820785A1 (de) * | 1984-10-18 | 1989-12-21 | Sandoz Ag | Herstellung von polylactonen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2061584A1 (en) * | 1970-12-15 | 1972-07-06 | Henkel & Cie Gmbh | Water insol alpha-substd-polyacrylates - obtd by basic treatment of alpha, beta-dichloro and/or dibromo propionic acids (est |
LU68060A1 (fr) * | 1973-07-20 | 1975-04-11 | ||
CH669952A5 (en) * | 1984-10-18 | 1989-04-28 | Sandoz Ag | Alpha chloro-acrylic or crotonic acid prodn. - by treating 2,3-di:chloropropionic or butyric acid with aq. base, de-hydro-chlorinating prod. and acidifying |
DE3720806C2 (de) * | 1986-07-03 | 1997-08-21 | Clariant Finance Bvi Ltd | Verwendung eines Stabilisators in Peroxydbleichverfahren |
JPS6395206A (ja) * | 1986-10-13 | 1988-04-26 | Nippon Peroxide Co Ltd | 低含水率の湿潤ポリラクトンの製造方法 |
-
1985
- 1985-10-04 CH CH4296/85A patent/CH669952A5/de not_active IP Right Cessation
-
1988
- 1988-06-20 DE DE3820785A patent/DE3820785C2/de not_active Expired - Fee Related
- 1988-07-04 FR FR888809127A patent/FR2633628B1/fr not_active Expired - Lifetime
- 1988-07-04 BE BE8800777A patent/BE1002088A3/fr not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3820785A1 (de) * | 1984-10-18 | 1989-12-21 | Sandoz Ag | Herstellung von polylactonen |
DE3820785C2 (de) * | 1984-10-18 | 2000-09-28 | Clariant Finance Bvi Ltd | Verfahren zur Herstellung von Polylactonen |
Also Published As
Publication number | Publication date |
---|---|
BE1002088A3 (fr) | 1990-06-26 |
DE3820785C2 (de) | 2000-09-28 |
FR2633628B1 (fr) | 1991-04-26 |
DE3820785A1 (de) | 1989-12-21 |
FR2633628A1 (fr) | 1990-01-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NV | New agent |
Representative=s name: SANDOZ TECHNOLOGIE AG |
|
PUE | Assignment |
Owner name: SANDOZ AG TRANSFER- CLARIANT FINANCE (BVI) LIMITED |
|
NV | New agent |
Representative=s name: CLARIANT INTERNATIONAL LTD. |
|
PL | Patent ceased |