GB484476A - Manufacture of condensation products from polyvinyl esters - Google Patents

Manufacture of condensation products from polyvinyl esters

Info

Publication number
GB484476A
GB484476A GB29665/36A GB2966536A GB484476A GB 484476 A GB484476 A GB 484476A GB 29665/36 A GB29665/36 A GB 29665/36A GB 2966536 A GB2966536 A GB 2966536A GB 484476 A GB484476 A GB 484476A
Authority
GB
United Kingdom
Prior art keywords
paraformaldehyde
formaldehyde
solution
chloride
vinyl
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
Application number
GB29665/36A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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
Priority to DEI56146D priority Critical patent/DE754492C/en
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB29665/36A priority patent/GB484476A/en
Priority to FR827867D priority patent/FR827867A/en
Publication of GB484476A publication Critical patent/GB484476A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/28—Condensation with aldehydes or ketones

Abstract

Polyvinyl acetals are prepared by condensing one or more vinyl ester polymers and/or mixed polymerization products of vinyl esters in aqueous emulsion with carbonyl compounds in the presence of strong acid in such concentration that a solution is produced. The acetal may be isolated by addition of water. Specified materials are: polymers, polyvinyl acetate, formate, chloracetate, propionate, and butyrate, and interpolymers of vinyl esters with maleic anhydride, maleic esters, viny chloride, styrene, methyl vinyl ketone; carbonyl compounds, formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, ethyl hexanal, aldol, crotonaldehyde, glyoxal, paraformaldehyde, paraldehyde; acetone, diethylketone, acetophenone, cyclohexanone; and mixtures of formaldehyde and acetaldehyde, formaldehyde and butyraldehyde, acetaldehyde and butyraldehyde, formaldehyde and acetone; acids, sulphuric, hydrochloric, phosphoric, and toluene-sulphonic acids or mixtures thereof. There may also be present a complex-forming salt of the first or second group of the Periodic System, e.g. lithium bromide, zinc chloride. The product may be used for spraying, for films, celluloid substitutes, interlayers for safety glass, and for electrotechnical purposes. In examples: an aqeous emulsion of polyvinyl acetate is gradually introduced into a solution of paraformaldehyde or cyclohexanone in concentrated hydrochloric acid, or into a solution of formaldehyde or paraldehyde in strong sulphuric acid, and the product precipitated by water; or an aqueous emulsion of polyvinyl acetate is gradually introduced into a solution of paraformaldehyde in strong sulphuric acid and followed by cyclohexanone, and the product precipitated by water. Solvents specified for the products are methylene chloride, alcohol, ethyl acetate, benzene, and mixtures thereof; ethylene chloride; mixtures of methylene or ethylene chloride with chloroform and carbon tetrachloride. Specification 466,173 is referred to. The Provisional Specification includes examples in which an emulsion of polyvinyl acetate is gradually stirred into a solution of paraformaldehyde in strong sulphuric acid or into solutions of formaldehyde (with or without paraformaldehyde), acetaldehyde, or acetone, in concentrated hydrochloric acid and in which an emulsion of a mixed polymer of vinyl acetate and vinyl chloride is gradually stirred into a solution of paraformaldehyde in concentrated hydrochloric acid.
GB29665/36A 1936-10-14 1936-10-31 Manufacture of condensation products from polyvinyl esters Expired GB484476A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEI56146D DE754492C (en) 1936-10-14 1936-10-14 Process for the preparation of condensation products from polymeric vinyl esters
GB29665/36A GB484476A (en) 1936-10-14 1936-10-31 Manufacture of condensation products from polyvinyl esters
FR827867D FR827867A (en) 1936-10-14 1937-10-13 Process for the preparation of condensation products of polymerized vinyl ethers-salts and carbonyl compounds

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEI56146D DE754492C (en) 1936-10-14 1936-10-14 Process for the preparation of condensation products from polymeric vinyl esters
GB29665/36A GB484476A (en) 1936-10-14 1936-10-31 Manufacture of condensation products from polyvinyl esters

Publications (1)

Publication Number Publication Date
GB484476A true GB484476A (en) 1938-05-02

Family

ID=10295159

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29665/36A Expired GB484476A (en) 1936-10-14 1936-10-31 Manufacture of condensation products from polyvinyl esters

Country Status (3)

Country Link
DE (1) DE754492C (en)
FR (1) FR827867A (en)
GB (1) GB484476A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436080A (en) * 1943-05-17 1948-02-17 Du Pont Resinous composition of urea-aldehyde and hydrolyzed interpolymer of a vinyl ester
US4652604A (en) * 1985-08-02 1987-03-24 American Hoechst Corporation Radiation-polymerizable composition and element containing a photopolymer composition
US4670507A (en) * 1985-08-02 1987-06-02 American Hoechst Corporation Resin
US4707437A (en) * 1985-08-02 1987-11-17 Hoechst Celanese Corporation Radiation-polymerizable composition and element containing a photopolymer composition
US4780392A (en) * 1985-08-02 1988-10-25 Hoechst Celanese Corporation Radiation-polymerizable composition and element containing a photopolymerizable acrylic monomer
US4822720A (en) * 1985-08-02 1989-04-18 Hoechst Celanese Corporation Water developable screen printing composition
US4895788A (en) * 1985-08-02 1990-01-23 Hoechst Celanese Corporation Water developable lithographic composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3100199A (en) * 1958-03-12 1963-08-06 Diamond Alkali Co Preparation of polyacetals from halogenated unsaturated carboxylic acid esters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR695300A (en) * 1929-06-07 1930-12-13 Ig Farbenindustrie Ag Artificial masses
DE551968C (en) * 1930-12-28 1932-06-08 I G Farbenindustrie Akt Ges Process for the preparation of condensation products from polyvinyl alcohols

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2436080A (en) * 1943-05-17 1948-02-17 Du Pont Resinous composition of urea-aldehyde and hydrolyzed interpolymer of a vinyl ester
US4652604A (en) * 1985-08-02 1987-03-24 American Hoechst Corporation Radiation-polymerizable composition and element containing a photopolymer composition
US4670507A (en) * 1985-08-02 1987-06-02 American Hoechst Corporation Resin
US4707437A (en) * 1985-08-02 1987-11-17 Hoechst Celanese Corporation Radiation-polymerizable composition and element containing a photopolymer composition
US4780392A (en) * 1985-08-02 1988-10-25 Hoechst Celanese Corporation Radiation-polymerizable composition and element containing a photopolymerizable acrylic monomer
US4822720A (en) * 1985-08-02 1989-04-18 Hoechst Celanese Corporation Water developable screen printing composition
US4895788A (en) * 1985-08-02 1990-01-23 Hoechst Celanese Corporation Water developable lithographic composition

Also Published As

Publication number Publication date
FR827867A (en) 1938-05-05
DE754492C (en) 1952-11-10

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