GB459878A - Polyvinyl acetal resins - Google Patents

Polyvinyl acetal resins

Info

Publication number
GB459878A
GB459878A GB20347/35A GB2034735A GB459878A GB 459878 A GB459878 A GB 459878A GB 20347/35 A GB20347/35 A GB 20347/35A GB 2034735 A GB2034735 A GB 2034735A GB 459878 A GB459878 A GB 459878A
Authority
GB
United Kingdom
Prior art keywords
polyvinyl alcohol
aldehyde
alcohol
hydrochloric acid
reaction
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
GB20347/35A
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.)
Carbide and Carbon Chemicals Corp
Original Assignee
Carbide and Carbon Chemicals Corp
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 Carbide and Carbon Chemicals Corp filed Critical Carbide and Carbon Chemicals Corp
Publication of GB459878A publication Critical patent/GB459878A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/347—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated ethers, acetals, hemiacetals, ketones or aldehydes
    • 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
    • C08F8/48—Isomerisation; Cyclisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Partial polyvinyl acetal resins are manufactured by bringing about the incomplete reaction of polyvinyl alcohol with an aldehyde, in the presence of an inorganic acidic substance as catalyst, under such reaction conditions that from about 2,5 to about 7, preferably 2,5 to 4, molecular proportions of polyvinyl alcohol (calculated as the monomeric substance) are caused to combine with one out: (a) by reacting an aldehyde with an aqueous solution of polyvinyl alcohol; (b) by reacting an aldehyde with a suspension of polyvinyl alcohol in a suitable solvent for the resin to be made; or preferably (c) by conducting the reaction in a liquid medium of which the composition is adjusted as the reaction proceeds so that a solid phase is never present. In examples: (1) and (2) butyraldehyde is stirred with an aqueous solution of polyvinyl alcohol and hydrochloric acid is added; (3) n-hexaldehyde is similarly reacted; (4) various proportions of propionaldehyde are reacted with polyvinyl alcohol in aqueous hydrochloric acid solution, the equilibrium ratio of polyvinyl alcohol to aldehyde being 4 mols. to 1 in each case; (5) polyvinyl alcohol damp with methyl alcohol is dissolved in isopropyl alcohol and the solution is stirred with butyraldehyde and hydrochloric acid and then allowed to stand, whereby about 3,5 mols. of polyvinyl alcohol react with one of aldehyde; (6) as in (5) but using more aldehyde, about 2,5 mols. of polyvinyl alcohol reacting with one of aldehyde; (7) the reaction of (5) is effected in the presence of n-butyl alcohol instead of isopropyl alcohol; (8) and (9) butyraldehyde is added gradually to an aqueous solution of polyvinyl alcohol containing hydrochloric acid, and isopropyl alcohol is added as the reaction proceeds so as to prevent the formation of a precipitate; (10) butyraldehyde and hydrochloric acid, both dissolved in isopropyl alcohol, are added alternately to an aqueous solution of polyvinyl alcohol. Other aldehydes specified are: formaldehyde and paraformaldehyde, acetaldehyde and paraldehyde, 2-ethylhexaldehyde, 3-heptaldehyde, crotonaldehyde, 2-vinylcrotonaldehyde, hexadien-2 : 4-al-1, 2 : 3-ethylpropylacrolein, 2 : 3-isobutylaryl acrolein and benzaldehyde. Mixtures of aldehydes may also be used. Specification 351,082* is referred to. 2 : 3-Isobutylamylacrolein is obtainable by reacting hexaldehyde with isohexaldehyde. Hexadien-2 : 4-al-1 is obtainable by condensing acetaldehyde with crotonaldehyde.
GB20347/35A 1934-08-29 1935-07-17 Polyvinyl acetal resins Expired GB459878A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74199734A 1934-08-29 1934-08-29

Publications (1)

Publication Number Publication Date
GB459878A true GB459878A (en) 1937-01-18

Family

ID=24983092

Family Applications (2)

Application Number Title Priority Date Filing Date
GB20347/35A Expired GB459878A (en) 1934-08-29 1935-07-17 Polyvinyl acetal resins
GB10164/37A Expired GB497146A (en) 1934-08-29 1937-04-09 Polyvinyl acetal resins

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB10164/37A Expired GB497146A (en) 1934-08-29 1937-04-09 Polyvinyl acetal resins

Country Status (4)

Country Link
BE (2) BE410516A (en)
FR (2) FR792661A (en)
GB (2) GB459878A (en)
NL (3) NL46812C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481419A (en) * 1945-02-13 1949-09-06 Frederick M Turnbull Surgical dressing
US2929710A (en) * 1954-10-08 1960-03-22 Du Pont Polyvinyl acetal with terminal vinylidene groups
US3137540A (en) * 1952-03-12 1964-06-16 Kurashiki Rayon Co Treatment of shaped polyvinyl alcohol bodies

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909860C (en) * 1938-09-27 1954-04-26 Hoechst Ag Process for the production of plastic masses or paints
DE877830C (en) * 1939-08-22 1953-05-26 Hoechst Ag Process for the production of fuel and oil-proof masses
US4895788A (en) * 1985-08-02 1990-01-23 Hoechst Celanese Corporation Water developable lithographic composition
US4822720A (en) * 1985-08-02 1989-04-18 Hoechst Celanese Corporation Water developable screen printing composition
US4780392A (en) * 1985-08-02 1988-10-25 Hoechst Celanese Corporation Radiation-polymerizable composition and element containing a photopolymerizable acrylic monomer
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
CN112724118B (en) * 2020-12-08 2023-02-28 中国石油大学(华东) Biomass alcoholysis method for petroleum-based plastic POM

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481419A (en) * 1945-02-13 1949-09-06 Frederick M Turnbull Surgical dressing
US3137540A (en) * 1952-03-12 1964-06-16 Kurashiki Rayon Co Treatment of shaped polyvinyl alcohol bodies
US2929710A (en) * 1954-10-08 1960-03-22 Du Pont Polyvinyl acetal with terminal vinylidene groups

Also Published As

Publication number Publication date
GB497146A (en) 1938-12-09
FR792661A (en) 1936-01-07
BE421035A (en) 1937-05-31
FR48392E (en) 1938-02-08
NL48164C (en) 1940-04-15
NL49324C (en) 1940-09-16
BE410516A (en) 1935-08-31
NL46812C (en) 1939-10-16

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