GB888272A - A new process for the production of stable aqueous emulsions of polyvinylacetals - Google Patents

A new process for the production of stable aqueous emulsions of polyvinylacetals

Info

Publication number
GB888272A
GB888272A GB3800258A GB3800258A GB888272A GB 888272 A GB888272 A GB 888272A GB 3800258 A GB3800258 A GB 3800258A GB 3800258 A GB3800258 A GB 3800258A GB 888272 A GB888272 A GB 888272A
Authority
GB
United Kingdom
Prior art keywords
sodium
acid
aldehyde
polyvinylacetal
moist
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
GB3800258A
Inventor
Joseph Heckmaier
Alois Stoll
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie 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 Wacker Chemie AG filed Critical Wacker Chemie AG
Priority to GB3800258A priority Critical patent/GB888272A/en
Publication of GB888272A publication Critical patent/GB888272A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
    • C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
    • C08J3/05—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2329/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols

Landscapes

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

Abstract

A stable aqueous emulsion of a polyvinylacetal is produced by converting a moist polyvinylacetal, in which the aldehyde component is a straight or branched chain aliphatic aldehyde containing at least eight carbon atoms, or a moist polyvinylacetal, obtained by copolymerizing a vinyl ester with an unsaturated aliphatic carboxylic acid containing one or two carboxyl groups followed by at least partial hydrolysis of the ester groups and reaction of the free hydroxyl groups formed with an aldehyde, to a plastic state by heating and milling at a temperature of 100 DEG -140 DEG C., cooling the mass and adding water slowly with agitation to the mixture obtained. The acid may be acrylic, crotonic, fumaric, maleic or itaconic acid. The emulsifying agents may be the alkali-metal and the ammonium salts of long-chain saturated and unsaturated fatty acids such as oleic acid, stearic acid, linolic acid, palmitic acid, lauric acid; and alkyl aryl sulphonates and polyglycol ether sulphonates, which may be employed with or without the addition of protective colloids such as polyvinyl alcohol, gelatin, sodium caseinate, albumen, dextrin, sodium cholate, gum tragacanth, saponin, gum arabic, and water-soluble cellulose derivatives. Specified emulsifying agents are sodium oleate, sodium linolate, sodium palmitate, sodium stearate, sodium laurate, and polyethylene glycol ether sulphonate. The preferred aldehydes are butyraldehyde and caprylic aldehyde. The resulting emulsions may be converted into films and used as an intermediate layer in the manufacture of laminated safety glass.
GB3800258A 1958-11-25 1958-11-25 A new process for the production of stable aqueous emulsions of polyvinylacetals Expired GB888272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3800258A GB888272A (en) 1958-11-25 1958-11-25 A new process for the production of stable aqueous emulsions of polyvinylacetals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3800258A GB888272A (en) 1958-11-25 1958-11-25 A new process for the production of stable aqueous emulsions of polyvinylacetals

Publications (1)

Publication Number Publication Date
GB888272A true GB888272A (en) 1962-01-31

Family

ID=10400516

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3800258A Expired GB888272A (en) 1958-11-25 1958-11-25 A new process for the production of stable aqueous emulsions of polyvinylacetals

Country Status (1)

Country Link
GB (1) GB888272A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003031365A1 (en) * 2001-10-09 2003-04-17 Hercules Incorporated Superplasticizer for concrete and self-leveling compounds
CN115286727A (en) * 2022-08-31 2022-11-04 中国科学院长春应用化学研究所 Preparation method of low-residue polyvinyl butyral

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003031365A1 (en) * 2001-10-09 2003-04-17 Hercules Incorporated Superplasticizer for concrete and self-leveling compounds
CN115286727A (en) * 2022-08-31 2022-11-04 中国科学院长春应用化学研究所 Preparation method of low-residue polyvinyl butyral
CN115286727B (en) * 2022-08-31 2023-12-19 中国科学院长春应用化学研究所 Preparation method of low-residue polyvinyl butyral

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