HOT-MELT BINDER Russian patent published in 2019 - IPC C09J153/02 

FIELD: chemistry.

SUBSTANCE: hot-melt binder for use in processing paper, binding or disposable articles comprises thermoplastic block copolymer (A), which is a copolymer of aromatic hydrocarbons based on vinyl and conjugated diene compounds, wherein said thermoplastic block copolymer (A) comprises the following component (A1) and component (A2):(A1) a styrene block copolymer of radial type, wherein the styrene content is from 35 to 45 wt. %, content of diblock copolymer ranges from 50 to 90 wt. %, and viscosity at 25 °C solution of 25 wt. % in toluene is not more than 250 MPa⋅s; and (A2) a linear styrene block copolymer with styrene content of 40-50 wt. % and viscosity at 25 °C solution of 25 wt. % in toluene is not more than 250 MPa⋅s.

EFFECT: invention relates to a hot-melt binding substance used in production of disposable products, typical examples of which are paper diapers and napkins.

4 cl, 4 tbl