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    • 11. 发明授权
    • Adhesive composition
    • US1784008A
    • 1930-12-09
    • US19013027
    • 1927-05-09
    • CONSORTIUM ELEKTROCHEM IND
    • HERRMANN WILLY OWOLFRAM HAEHNEL
    • C09J131/00C09J131/04D06M15/333
    • D06M15/333C08L2666/28C09J131/00C09J131/04
    • 271,090. Consortium fur Elektrochemische Industrie Ges. May 11, 1926, [Convention date]. Adhesives; electric insulation proofing permeable materials; sealing-wax; adhesives.-Polymerized vinyl acetates which are soluble in alcohol and in hydrocarbons such as benzene, are used for cementing and sticking. The products, which may be obtained for example as described in German Specification 446,562, may be used in any condition of viscosity, or molten, or in solution, or as powders. They may be dissolved in organic solvents such as alcohols, ketones, esters such as vinyl acetate, acetals, hydrocarbons or halogen derivatives thereof or nitro-hydrocarbon, or mixtures thereof, and the polymerization is preferably effected in the presence of a solvent, for example as described in Specification 261,406, [Class 2 (iii), Dyes &c.]. Softening agents, adhesive or non-adhesive materials, fillers &c. may be added. Cementing or sticking may be effected with the aid of heat or pressure or both. Examples are given of the use of (1) a solution of the soluble polymerized vinyl acetate in alcohol or benzole &c. for sticking together layers of mica, paper, fibrous material &c. to form electrically insulating materials. (2) a solution of soluble polymerized vinyl acetate to be sprayed, painted &c. on paper, fabric &c. to form sticky films. (3) Powdered soluble polymerized vinyl acetate strewn on layers of materials such as paper or micanite and uniting such layers by pressure and heat. The products may also be used to form sealing-wax to be melted or used cold, and cold glues.