Radiation curable coating compositions comprising a lactide reaction product

Patent metadata

Field	Value
Publication number	US-9650540-B2
Application number	US-26658808-A
Country	US
Kind code	B2
Filing date	Nov 7, 2008
Priority date	Sep 2, 2008
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A coating comprising the reaction product of a natural oil derived polyol, a lactide and a radiation curable moiety, such as a (meth)acrylate, are disclosed.

First claim

Therefore we claim:

1. A radiation curable coating comprising a reaction product of:
a) a natural oil derived polyol containing hydroxyl groups introduced through modification of a naturally occurring carbon-carbon double bond in a natural oil;
b) a lactide; and
c) a compound comprising a radiation curable moiety, wherein the radiation curable moiety is on the terminus of the reaction product and not within the backbone of the reaction product.

2. The coating of claim 1 , wherein the natural oil derived polyol and the lactide are reacted first and then further reacted with the compound comprising the radiation curable moiety.

3. The coating of claim 1 , wherein the natural oil derived polyol comprises soy polyol.

4. The coating of claim 1 , wherein 40 weight % or greater of the carbon content of the reaction product is biomass derived, with weight % based on the total weight of the reaction product.

5. The coating of claim 1 , wherein 60 weight % or greater of the carbon content of the reaction product is biomass derived, with weight % based on the total weight of the reaction product.

6. The coating of claim 1 , wherein 25 weight % or greater of the carbon content of the coating, when cured, is biomass derived, with weight % based on the total solids weight of the coating.

7. The coating of claim 1 , wherein 50 weight % or greater of the carbon content of the coating, when cured, is biomass derived, with weight % based on the total solids weight of the coating.

8. The coating of claim 1 , wherein the coating further comprises a thermosetting moiety and the coating is a dual cure coating.

9. The coating of claim 8 , wherein the thermosetting moiety comprises a hydroxyl functional resin and the coating further comprises an isocyanate functional crosslinker.

10. The coating of claim 1 , wherein the compound comprising a radiation curable moiety comprises a (meth)acrylate.

11. The coating of claim 10 , wherein the (meth)acrylate comprises acryloyloxy ethyl isocyanate.

12. The coating of claim 10 , wherein the (meth)acrylate comprises the reaction product of a diisocyanate and a hydroxyalkyl acrylate.

13. A substrate coated at least in part with the coating of claim 1 .

14. The substrate of claim 13 , wherein the substrate is metallic.

15. The substrate of claim 13 , wherein the substrate is non-metallic.

16. The substrate of claim 15 , wherein the substrate is polymeric.

17. The substrate of claim 15 , wherein the substrate is PC/ABS.

18. The substrate of claim 15 , wherein the substrate is nylon.

19. The substrate of claim 15 , wherein the substrate is wood.

Assignees

• Cheng Shan
• Zhou Hongying
• Fenn David R
• Kulfan Jackie L
• Ppg Ind Ohio Inc

Inventors

• Cheng Shan
• Zhou Hongying
• Fenn David R
• Kulfan Jackie L

Classifications

• C09D167/07 Primary

  having terminal carbon-to-carbon unsaturated bonds · CPC title

• Y10T428/31989

  Of wood · CPC title

• Y10T428/31507

  Of polycarbonate · CPC title

• Y02P20/582

  Recycling of unreacted starting or intermediate materials · CPC title

• Y10T428/31678

  Of metal · CPC title