Fluorinated polymer and amine resin compositions and products formed therefrom
View Patent ↗A reactive fluorinated polymer having polyester and polyether segments is mixed with a reactive melamine resin to form a coating composition. The polyether segment can include monomeric units from an oxetane monomer having pendant fluorine groups that are linked to the oxetane via an ether group. The melamine resin can be a lower alkyl etherified melamine-formaldehyde. The composition can be disposed on a substrate and treated to form a laminate.
1. A laminate comprising a layer derived from reactive ingredients comprising:
(a) a polymer comprising at least one polyester segment and at least one polyether segment comprising monomeric units derived from oxetane and a pendent fluorinated group comprising:
(i) a fluorocarbon moiety, and
(ii) an ether moiety, wherein the fluorocarbon moiety is linked to the polyether segment via the ether moiety; and
(b) a melamine resin.
2. A laminate according to claim 1 wherein the oxetane is selected from
wherein n is an integer from 1 to 3, Rf is independently on each monomer a linear or branched alkyl group of from about 1 to about 20 carbon atoms being at least 25% perfluorinated with the H atoms of said Rf being replaced by F, and R is H or an alkyl of 1 to 6 carbon atoms.
3. The laminate of claim 2 wherein the polymer and the melamine resin are co-reactable.
4. The laminate of claim 3 wherein the polymer and the melamine resin are crosslinkable.
5. The laminate of claim 2 wherein the melamine resin is derived from reaction with formaldehyde.
6. The laminate of claim 2 wherein the melamine resin is at least partially alkylated.
7. The laminate of claim 6 wherein the melamine resin is at least partially alkylated by reaction with one or more C1-C4 alcohols.
8. The laminate of claim 7 wherein the melamine resin is at least partially alkylated by reaction with one or more alcohols selected from the group consisting of n-butanol, n-propanol, isopropanol, ethanol, and methanol.
9. The laminate of claim 2 comprising a substrate wherein the layer is disposed on the substrate.
10. The laminate of claim 2 wherein the substrate is thermoformable.
11. The laminate of claim 1 wherein the monomeric units derived from oxetane comprise the pendent fluorinated group having a formula: —CH 2 —O—(CH 2 ) n —Rf, wherein said Rf group is a linear or branched alkyl group of 1 to 20 carbon atoms with a minimum of 25 percent of the hydrogens of said alkyl groups being replaced by F, or said Rf group being an oxaperfluorinated or perfluorinated polyether having from 4 to 60 carbon atoms, and n being from 1 to 3.
12. The laminate of claim 11 , wherein said Rf group is a linear or branched perfluorinated alkyl group of 1 to 20 carbon atoms.
13. The laminate of claim 8 , wherein polyether segment comprises monomeric units derived from tetrahydrofuran.
14. A method for forming a laminate comprising steps of:
providing a composition comprising reactive ingredients of:
(a) a polymer comprising at least one polyester segment and at least one polyether segment, wherein the polyether segment comprises monomeric units derived from oxetane and a pendent fluorinated group comprising:
(i) a fluorocarbon moiety, and
(ii) an ether moiety, wherein the fluorocarbon moiety is linked to the polyether segment via the ether moiety; and
(b) a melamine resin; and
incorporating the composition into a laminate.
15. The method of claim 14 where in the step of incorporating, (a) and (b) are reacted to form a crosslinked composition.
16. A reaction product derived from reactive ingredients comprising:
(a) a polymer comprising at least one polyester segment and at least one polyether segment comprising monomeric units derived from oxetane, wherein the polyether segment comprising a pendent fluorinated group comprising:
(i) a fluorocarbon moiety, and
(ii) an ether moiety, wherein the fluorocarbon moiety is linked to the polyether segment via the ether moiety; and
(b) a melamine resin.
17. A method for preparing a multilayered article comprising steps of:
providing a composition comprising reactive ingredients of:
(a) a polymer comprising at least one polyester segment and at least one polyether segment comprising units derived from oxetane, wherein the polyether segment comprises a pendent fluorinated group comprising:
(i) a fluorocarbon moiety, and
(ii) an ether moiety, wherein the fluorocarbon moiety is linked to the polyether segment via the ether moiety; and
(b) a melamine resin; and
using the composition to form a layer on a substrate.
18. The method according to claim 17 , wherein the substrate comprises a cellulosic product, fiber, synthetic polymer, metal, or ceramic.
19. The method according to claim 17 , wherein the substrate includes a layer of plasticized vinyl chloride polymer.
20. The method according to claim 17 , performed to make a wallcovering.
21. The method according to claim 20 , performed to make a dry erase surface.
22. The method of claim 17 where in the step of using the composition to form a layer on a substrate comprises heating the composition to at least about 150° F.