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 PDF

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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
Application number
CH4296/85A
Other languages
German (de)
English (en)
Inventor
Werner Amati
Jose Dr Canela
Rene Dr Frei
Original Assignee
Sandoz Ag
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.)
Filing date
Publication date
Application filed by Sandoz Ag filed Critical Sandoz Ag
Priority claimed from GB8814303A external-priority patent/GB2219800B/en
Publication of CH669952A5 publication Critical patent/CH669952A5/de

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)
CH4296/85A 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 CH669952A5 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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
FR2633628A1 (fr) 1990-01-05
FR2633628B1 (fr) 1991-04-26
DE3820785C2 (de) 2000-09-28
BE1002088A3 (fr) 1990-06-26
DE3820785A1 (de) 1989-12-21

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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