Fluorine-free water-repellent composition
AssigneeArchroma IP GmbH
InventorWolfgang Knaup
Life of this patent
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Abstract
Composition, comprising at least components (A) and (B) and optionally at least one of components (C) to (E): (A) polyacrylate obtained in the polymerisation of components (M1) CH2═CR3COO—R1 with (M2) CH2═CR3COO—R2 and optionally (M3) CH2═CR3—X—R4 (B) wax (C) blocked isocyanate (D) organic polysiloxane; (E) melamine resin; wherein R1 is a residue containing from 1 to 8 carbon atoms; R2 is a residue containing from 9 to 40 carbon atoms; R3=H, CH3, C2H5; X=COO, CONH R4=glycidyl or CH2(CH2)n—OR5, wherein n is an integer in the range of from 1-10 and R5 is H or a residue containing from 1 to 6 carbon atoms; and wherein the composition is based on water and/or an organic solvent and is fluorine-free.
Claims19
A composition, comprising at least components (A) and (B) and optionally at least one of components (C) to (E):
- (A) a polyacrylate consisting of moieties derived from monomers (M1), (M2), and optionally (M3) and obtained in the polymerisation of
- (M1) CH2═CR3COO—R1 with
- (M2) CH2═CR3COO—R2 and optionally
- (M3) CH2═CR3—X—R4;
- (B) a wax;
- (C) a blocked isocyanate;
- (D) an organic polysiloxane;
- (E) a melamine resin;
- wherein
- R1 is the alcohol moiety in monomer (M1) containing from 1 to 8 carbon atoms;
- R2 is the alcohol moiety in monomer (M2) containing from 9 to 40 carbon atoms;
- R3 is H, CH3, or C2H5;
- X is COO or CONH;
- R4 is glycidyl or CH2(CH2)n—R5,
- wherein
- n is an integer in the range of from 1-10 and
- R5 is H or a residue containing from 1 to 6 carbon atoms;
- wherein the composition is based on water and/or an organic solvent and is fluorine-free;
- and wherein the composition comprises from
- 5—90 % by weight of (A);
- 5—90 % by weight of (B);
- 0—40 % by weight of (C);
- 0—40 % by weight of (D);
- 0—40 % by weight of (E);
- 0.1—90 % by weight of water and/or an organic solvent;
- based on the total amount of the composition (=100 % by weight).
Dependencies are inferred from the claim text.