COLOPHONY ETHERS FOR NONWOVEN MATERIALS Russian patent published in 2015 - IPC C09F1/04 C09J193/04 D06M13/10 

FIELD: chemistry.

SUBSTANCE: invention relates to colophony ethers that feature appropriate colour, stable colour and/or flavour to be used in nonwoven materials, nonwoven products made of colophony ethers and/or containing the latter and to production and application of that ethers and products, for example, adhesives. Production of colophony ether comprises colophony disproportionation in contact between colophony and disproportionation agent. Disproportionated colophony with PAN smaller than 45 is brought in contact with attachment agent. Colophony adduct is brought about with additionally decreased PAN number. Colophony adduct is brought in contact with polyatomic alcohol containing approximately 20 wt % or less of pentaerythrol to get the colophony ether. Colophony ether features the flavour intensity smaller than 80% relative to colophony ether obtained with the help of 100% pentaerythrol. Adhesive contains said colophony ether. Nonwoven product contains said adhesive.

EFFECT: better characteristics, appropriate colour, stable colour, faint flavour to be used in nonwoven materials as an adhesive.

23 cl, 6 tbl, 6 ex