Patent ID: 11945829
Assignee: BOSTIK SA
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 15:
16. The process of claim 15, further comprising:
E1) the preparation of a polyurethane prepolymer bearing —NCO end groups of formula (IV) as defined in claim 15, via a polyaddition reaction:
iii) of at least one polyisocyanate;
iv) with at least one polyol;
in amounts such that the NCO/OH mole ratio (r1) is strictly greater than 1; and

E2) reaction of the product formed on conclusion of step E1) with at least one, compound(s) of formula (I), in amounts such that the NCO/OH mole ratio (r2) is between 1.3 and 5.