Patent ID: 11920065
Assignee: BOSTIK SA
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 3:
4. The self-adhesive article according to claim 1, wherein the at least one polysilylated polymer(s) A) correspond(s) to the following formula:
formula (II):, wherein:
B represents a divalent hydrocarbonated radical (for f=2) or trivalent (for f=3) comprising 2 to 66 carbon atoms, linear, branched, cyclic, alicyclic or aromatic, saturated or unsaturated, optionally comprising one or more heteroatoms,
R1 represents a divalent hydrocarbonated radical comprising from 5 to 15 carbon atoms which can be aromatic or aliphatic, linear, branched or cyclic,
R3 represents a linear or branched divalent alkylene radical comprising from 1 to 6 carbon atoms,
R2 and R′2 identical or different, each represent a linear or branched divalent alkylene radical comprising from 2 to 4 carbon atoms,
R4 and R5 identical or different, each represent a linear or branched alkyl radical comprising from 1 to 4 carbon atoms, R4 which can optionally be engaged in a ring,
n is a non-zero integer wherein the number-average molecular mass of the polyether block of formula —[OR2]n-ranges from 300 g/mol to 40,000 g/mol,
n′ is a zero or non-zero integer wherein the number-average molecular mass of the polyether block of formula —[OR′2]n—ranges from 0 to 20000 g/mol,
m is a zero or non-zero integer,
p is an integer equal to 0 or 1,
f is an integer equal to 2 or 3, and
indices m, n, n′ and f are such that the number-average molecular mass of the polysilylated polymer(s) A) is as defined in claim 1.