ADHESIVE COMPOSITION FOR GLUEING POLYVINYLCHLORIDE FINISHING MATERIAL Russian patent published in 1994 - IPC

FIELD: glueing. SUBSTANCE: adhesive composition contains, % : 46% aqueous dispersion of methylmethacrylate, butylacrylate and methacrylic acid (mass ratio of monomeric units being 40: 55: 5) 82.8-95.6; product of interaction of rarely cross-linked methacrylic acid and butylacrylate copolymer with diethylamine or with monoethanolamine 0.1-1.0; dibutyl- or dioctylphthalate 3-16; product of polymerization of ethylene oxide and propylene oxide with fat alcohols C₇-C₁₂ 0.4-0.5; tetramethylthiuramdisulfide 0.05-0.20; 25% aqueous solution of ammonium 0.2-0.7. Strength of adhesive joint by exfoliation in 24 h is 2.25 kgf/cm and 1.20 kgf/cm for veneer and splint-slab plates respectively. Shearing strength is 7,2 kgs/cm² (in 5 h) and 10,0 kgs/cm² (in 24 h) for concrete and 9,4 kgs/cm² (for wood colored by oil paints). EFFECT: improves composition quality. 2 tbl