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US 2019/0292404 A1Published application
Hydrolysable binder
AssigneeEvonik Degussa GmbH
InventorsMichael FIEDEL, Petra ALLEF, Georg SCHICK, Vishwa Prasad AITHA, Tim-Frederic SLOOT, Kim OEBERG HED, Marit SEIM
Life of this patent
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Abstract
The invention relates to ahydrolysable binder based on an ABAB type polysiloxane copolymer suitable for the preparation of coating compositions with an improved anti-adhesive and/or dirt-repellent surface.
Claims16
1:
- A hydrolysable binder for a coating composition, the hydrolysable binder comprising:
- the reaction product of:
- i) at least one polysiloxane of monomer A′ of formula (A″):
- wherein each R1 is methyl,
- X and Y are the same and represent (CH2)x′—OH or —(CH2)x′—COOH or —(CH2)x′—COOR;
- x′ is 1 to 5;
- R is C1-6 alkyl;
- and
- n is 10-300,
- and
- ii) at least one second monomer B′ of formula
- RcOOC-Q-COORc (formula B″)
- or
- Rc′O-Q-ORc′ (formula B′″)
- where Q is an aliphatic, cycloalkyl, cycloalkenyl, polyoxyalkylene or aromatic group having up to 20 carbon atoms or a covalent bond or a linear polysiloxane and each Rc and Rc′ are the same or different and represent H, C1-20 alkyl, C2-20 alkenyl, C6-20 aryl, C3-20 cycloalkyl group or C7-20 arylalkyl group,
- with the proviso that the Rc or Rc′ groups in (formula B″) or (formula B′″) are selected to react with the X and Y groups in monomer A′ to form an ester group,
- wherein the hydrolysable binder is suitable for a coating composition that is not a marine coating composition.
14 more elements
2:
- The hydrolysable binder as claimed in claim 1, wherein monomer A′ is at least one monomer selected from the group consisting of:
- wherein
- X′ is 1 to 10;
- and
- R11 and R12 are each independently C2-6 alkylene.
2 more elements
3:
- The hydrolysable binder as claimed in claim 1, wherein monomer B′ is
- wherein Rd is a saturated, unsaturated or aromatic C3-C8 ring.
4:
- The hydrolysable binder as claimed in claim 1, wherein monomer B′ is
- wherein
- Rd is a saturated, unsaturated, or aromatic C3-C8 ring;
- and
- R3 and R4 are each independently a straight or branched chain C1-20 alkyl group, a straight or branched chain C2-10 alkenyl group, a C6-20 aryl group, a C7-20 arylalkyl group, or a C3-20 cycloalkyl group.
2 more elements
5:
- The hydrolysable binder as claimed in claim 1, wherein
- monomer B′ is HO-Q-OH diol where Q is an aliphatic, polyoxyalkylene, cycloalkyl, cycloalkenyl or aromatic group having up to 20 carbon atoms or a covalent bond.
6:
- The hydrolysable binder as claimed in claim 1, wherein
- monomers A′ and B′ undergo a polymerisation reaction to form a copolymer of structure -[ABAB]-.
7:
- The hydrolysable binder as claimed in claim 6, wherein
- the copolymer backbone contains a polyoxyalkylene moiety.
8:
- A non-marine coating composition, comprising:
- at least one hydrolysable binder as claimed in claim 1, and
- at least one of filler, pigment, solvent, additive, curing agent, and catalyst.
(canceled)
10:
- A method of making a coating composition, the method comprising:
- adding the hydrolysable binder as claimed in claim 1 to a coating composition, wherein the coating composition exhibits an anti-adhesive-property, an anti-dirt-property, an easy-to-clean property, an anti-graffiti-property or an anti-fouling property in a non-marine application.
11:
- The hydrolysable binder as claimed in claim 1, wherein
- x′ is 2 to 5 or is 3 to 5;
- R is C1-6 alkyl;
- and
- n is 15-100.
2 more elements
12:
- The hydrolysable binder as claimed in claim 2, wherein
- X′ is 1 to 5 or 2 to 5 or 3 to 5.
13:
- The hydrolysable binder as claimed in claim 3, wherein
- Rd is a saturated, unsaturated or aromatic C5-C6 ring.
14:
- The hydrolysable binder as claimed in claim 1, wherein monomer B′ is
- wherein
- Rd is a saturated, unsaturated, or aromatic C5-C6 ring;
- and
- R3 and R4 are each independently a straight or branched chain alkyl group, a straight or branched chain alkenyl group, an arylalkyl group, or a cycloalkyl group,
- wherein the straight or branched chain alkyl group is a C1-10 alkyl group or a C1-6 alkyl group or a C1-4 alkyl group,
- wherein the straight or branched chain alkenyl group is a C2-6 alkenyl group,
- wherein the arylalkyl group is a C7-12 arylalkyl group, and
- wherein the cycloalkyl group is a C4-15 cycloalkyl group or a C5-10 cycloalkyl group.
6 more elements
15:
- The hydrolysable binder as claimed in claim 5, wherein
- Q represents an alkylene chain having up to 10 carbon atoms.
16:
- The hydrolysable binder as claimed in claim 6, wherein
- the copolymer backbone contains a moiety of PEG, PPG, a PEG copolymer, or a PPG copolymer.
Dependencies are inferred from the claim text.