GLUE-HERMETIC Russian patent published in 2002 - IPC

FIELD: gluing substances. SUBSTANCE: invention relates to gluing substances based on composites of high-molecular polyvinyl chloride. The composite of glue-hermetic comprising polyvinyl chloride, plasticizer of phthalate type, epoxy resin, chalk and adhesion additions has additionally highly dispersed calcium oxide as a dehydrating agent, a mixture of derivatives of 1,3-dioxane alcohols and their high-boiling ester as an additional plasticizer and a combination of cross-linking agent: phenol-aniline-formaldehyde resin of resol type with drop point temperature by Ubbelode scale T = 80-120 C and polyethylenepolyamine with mass part or tertiary amino-groups 5-9% as an adhesion addition. The composite provides decrease of water vapors and other volatile substances evolving at hardening (gelatinization) of glue, enhancement of adhesion and strength indices in temperature range from 40 to 140 C, hermetic nature of hardened glue in effect of diesel fuels, motor oils, possibility to use polyvinyl chloride of wide range of properties: microsuspension, emulsion, expanded ranges of glue-hermetic using. Invention can be used widely in machine engineering as connective-structural member in the process of making oily, air and fuel filters in sealing welded seams and development of protective covers. EFFECT: improved properties of glue. 1 tbl, 10 ex