Hydroxy functional alkyl carbamate crosslinkers

Patent metadata

Field	Value
Publication number	US-11053191-B2
Application number	US-201815865348-A
Country	US
Kind code	B2
Filing date	Jan 9, 2018
Priority date	Jan 9, 2018
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

A hydroxy functional alkyl carbamate is disclosed having the formula:

wherein R comprises a substituted or unsubstituted C 1 to C 36 alkyl group, an aromatic group, and/or a polymeric moiety; wherein each R 1 is independently a hydrogen, alkyl having at least 1 carbon, or a hydroxy functional alkyl having 2 or more carbons and at least one R 1 is a hydroxy functional alkyl having 2 or more carbons; and n is 2-6.

The present invention is also directed to a composition, and substrates coated therewith, comprising a film-forming resin; and a hydroxy functional alkyl carbamate crosslinker having the formula shown above.
Other hydroxy functional alkyl carbamate compounds, polymers made with the same, and compositions comprising the same are also disclosed as are substrates coated at least in part with or formed with any of the compositions described herein.

First claim

What is claimed is:

1. A composition comprising:
a. an acid functional film-forming resin; and
b. a hydroxy functional alkyl carbamate crosslinker having the formula:

wherein R comprises a substituted or unsubstituted C 1 to C 36 alkyl group, an aromatic group, and/or a polymeric moiety; wherein each R 1 is independently a hydroxy functional alkyl having 2 or more carbons; and n is 2-6,
wherein the acid functional film-forming resin comprises acid functional groups which, upon cure, crosslink with the functionality of the hydroxy functional alkyl carbamate crosslinker, and wherein the composition is substantially formaldehyde free.

2. The composition of claim 1 , wherein R comprises a substituted or unsubstituted C 2 -C 12 alkyl or aromatic group.

3. The composition of claim 1 , wherein R 1 comprises a 2-hydroxyethyl or 3-hydroxypropyl group.

4. The composition of claim 1 , wherein R further comprises an ether.

5. The composition of claim 1 , wherein R comprises a polyurethane.

6. The composition of claim 1 , wherein R does not comprise functional groups.

7. The composition of claim 1 , wherein R does not comprise epoxy groups.

8. The composition of claim 1 , wherein R does not comprise hydroxy groups.

9. The composition of claim 1 , wherein the acid functional film-forming resin comprises an acid functional polyolefin dispersion.

10. The composition of claim 1 , wherein the acid functional film-forming resin comprise a polyurethane resin, an acrylic resin, a polyester resin, an epoxy resin and/or a polyolefin.

11. The composition of claim 1 , wherein the composition is a powder coating composition.

12. The composition of claim 1 , further comprising a catalyst.

13. The composition of claim 1 , further comprising water and/or an organic solvent.

14. A coating comprising the composition of claim 1 .

15. A substrate coated at least in part with the coating of claim 14 .

16. The substrate of claim 15 , wherein the substrate comprises a package.

17. The substrate of claim 15 , wherein the substrate comprises a metal can.

18. The substrate of claim 15 , wherein the substrate comprises a vehicle.

19. The substrate of claim 15 , wherein the substrate comprises metal sheet or coil.

20. A sound damping composition comprising the composition of claim 1 .

Assignees

• Ppg Ind Ohio Inc

Inventors

• Zhou Hongying
• Retsch William
• Breon Jonathan
• Kurtz Christopher P

Classifications

• C08G18/284

  Compounds containing ester groups, e.g. oxyalkylated monocarboxylic acids · CPC title

• C08G18/2815 Primary

  Monohydroxy compounds · CPC title

• C08G18/3275

  containing two hydroxy groups · CPC title

• C08G18/755

  and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate · CPC title

• C09D133/08

  Homopolymers or copolymers of acrylic acid esters · CPC title