THERMOGLUE FOR GLUING AND HERMETIC SEALING Russian patent published in 2006 - IPC C09J123/02 C09K3/10 

FIELD: gluing materials.

SUBSTANCE: invention relates to thermoglues or glue-melts used for gluing or hermetic sealing of pipelines made of polyolefins, gas-petroleum pipelines, electric cable butt-joining units in cable industry, for gluing polymeric roofing materials, in homes and other branches of industry. Proposed glue comprises copolymer of ethylene with vinyl acetate representing a mixture of copolymer of ethylene with vinyl acetate with the content of vinyl acetate links 10-14 wt.-% and copolymer of ethylene with vinyl acetate with the content of vinyl acetate links 21-24 wt.-%, or copolymer of ethylene with vinyl acetate with the content of vinyl acetate links 26-30 wt.-% taken in the ratio from 1:2 to 1:4, respectively, a mixture of colophony or its derivatives with hydrocarbon resin as a stickiness agent taken in their ratio from 1:0.5 to 1:2.0, respectively, plasticizing agent and, additionally, stabilizing agent and filling agent. Invention provides the necessary physicochemical indices in gluing difficultly adhering articles made of polyolefins, polymeric rolled materials to different substrates in broad range of temperatures and safety exploitation of articles under conditions sign-variable cyclic tensions.

EFFECT: improved and valuable properties of glue.

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