polyvinyl acetal

noun
: any of a group of thermoplastic resins made by condensing polyvinyl alcohol with an aldehyde and used chiefly in the form of sheets and films, molded products, coatings, and adhesives; especially : the resin made from acetaldehyde

* * *

Chem.
1. any of the class of thermoplastic resins derived by the condensation of an aldehyde with polyvinyl alcohol.
2. the slightly yellow, water-insoluble resin produced from partially hydrolyzed polyvinyl acetate and formaldehyde: used chiefly in the manufacture of lacquers, photographic film, and adhesives.
[1930-35]

Useful english dictionary. 2012.

Look at other dictionaries:

  • polyvinyl acetal — Chem. 1. any of the class of thermoplastic resins derived by the condensation of an aldehyde with polyvinyl alcohol. 2. the slightly yellow, water insoluble resin produced from partially hydrolyzed polyvinyl acetate and formaldehyde: used chiefly …   Universalium

  • polyvinyl formal — noun : a polyvinyl acetal resin made from polyvinyl alcohol and formaldehyde and used chiefly in insulating enamels and other coatings * * * /fawr mal/, Chem. a colorless, water insoluble, polyvinyl acetal produced from partially hydrolyzed… …   Useful english dictionary

  • polyvinyl butyral — noun : a tough flexible transparent moisture resistant polyvinyl acetal resin made from polyvinyl alcohol and butyraldehyde and used chiefly as the interlayer in safety glass and other laminated products and as a coating for textiles * * * Chem.… …   Useful english dictionary

  • polyvinyl alcohol — Chem. a colorless, water soluble, thermoplastic resin, derived by the hydrolysis of polyvinyl acetate: used chiefly as an adhesive and as a sizing agent in the manufacture of textiles, paper, and plastics. [1925 30] * * * ▪ chemical compound… …   Universalium

  • polyvinyl acetate — Chem. a colorless, odorless, nontoxic, transparent, thermoplastic, water insoluble resin used as an adhesive in certain paints and as an intermediate in the synthesis of polyvinyl acetal and polyvinyl alcohol. Also called PVA [1925 30] * * * ▪… …   Universalium

  • polyvinyl formal — /fawr mal/, Chem. a colorless, water insoluble, polyvinyl acetal produced from partially hydrolyzed polyvinyl acetate and formaldehyde, used chiefly in the manufacture of lacquers. * * * …   Universalium

  • polyvinyl butyral — Chem. a white, water insoluble, polyvinyl acetal made with butyraldehyde, used chiefly as an interlayer in the manufacture of safety glass. [1940 45] * * * …   Universalium

  • vinyl acetal — noun : polyvinyl acetal …   Useful english dictionary

  • vinyl resin — noun a thermoplastic derived by polymerization from compounds containing the vinyl group • Syn: ↑vinyl polymer, ↑polyvinyl resin • Hypernyms: ↑synthetic resin • Hyponyms: ↑polyvinyl acetate, ↑PVA, ↑ …   Useful english dictionary

  • Polyoxymethylene — Other names Poly(oxymethylene) glycol; Polymethylene glycol …   Wikipedia

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