FIELD: adhesives.
SUBSTANCE: invention relates to glue used for manufacturing combined materials containing nonwoven fibrous web material. Glue contains component A: polyester with molecular weight 8000-30000 and melting enthalpy not higher than 20 mJ/mg and component B: polyester with molecular weight 400 to at least 800 and vitrification temperature not higher than 60оС, A/B ratio being (0-95):(5-80). Glue has melt viscosity 500 to 15000 mPa·s and softening point 70-100оС. Polyesters are prepared from first acid component (ortho-, iso-, or terephthalic acid), second acid component (adipic or cebacic acid), and alcohol component.
EFFECT: strengthened low-temperature attachment of polyolefin to nonwoven materials, acquired biodegradability, and increased mechanical stability and heat resistance.
15 cl, 3 ex
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