Bostik Sa

Marjorie Pereira

Guillaume Michaud

Frederic Simon

Frédéric Simon

1) Specific polyurethane prepolymer (PP2) comprising at least two terminal (2-oxo-1,3-dioxolan-4-yl)methyl carbamate groups of low viscosity, its preparation process and its use in the manufacture of an adhesive composition. 2) Multicomponent system comprising, as first component (A), a composition comprising at least one such polyurethane prepolymer and, as second component (B), a composition comprising at least one curing agent comprising at least two primary amine (&#x2014;NH) groups (B1). 3) Process for assembling materials employing the polyurethane prepolymer (PP2) according to the invention.

Low-viscosity polyurethane prepolymer with cyclic carbonate end groups and the use thereof in the production of a multi-component adhesive composition

1) Specific polyurethane prepolymer (PP2) comprising at least two terminal (2-oxo-1,3-dioxolan-4-yl)methyl carbamate groups of low viscosity, its preparation process and its use in the manufacture of an adhesive composition. 2) Multicomponent system comprising, as first component (A), a composition comprising at least one such polyurethane prepolymer and, as second component (B), a composition comprising at least one curing agent having at least two primary amine (&#x2014;NH) groups (B1). 3) Process for assembling materials employing the polyurethane prepolymer (PP2) according to the invention.

Polyurethane prepolymer with cyclocarbonate end groups of low viscosity and the use thereof in the production of a multi-component adhesive composition

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Pontoise les Noyon, France

Marjorie Pereira