Ultra Low Thermo Fusion PVC Alternative Plastisol Coating and Textile Printing Ink

• US 20190315980A1
• Filed: 06/01/2017
• Published: 10/17/2019
• Est. Priority Date: 06/01/2016
• Status: Active Grant

• Current Assignee: Hack S. Kang
• Original Assignee: Hack S. Kang
• Inventors: Kang, Hack S.
• Granted Patent: US 11,104,818 B2
• Time in Patent Office: Days
• CPC Class Codes: A61L 2/08 Radiation
• CPC Class Codes: C08K 5/0016 Plasticisers
• CPC Class Codes: C09D 11/037 characterised by the pigment
• CPC Class Codes: C09D 11/101 Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
• CPC Class Codes: C09D 11/107 from unsaturated acids or derivatives thereof
• CPC Class Codes: C09D 133/04 Homopolymers or copolymers of esters C09D143/04 takes precedence
• CPC Class Codes: D06P 1/006 by using dyes with polymerisable groups, e.g. dye ---CH=CH2
• CPC Class Codes: D06P 3/246 using polymeric dyes
• CPC Class Codes: D06P 3/3266 using polymeric dyes
• CPC Class Codes: D06P 3/346 using polymeric dyes
• CPC Class Codes: D06P 3/526 using polymeric dyes
• CPC Class Codes: D06P 3/6058 by using dyes with polymerisable groups, e.g. dye ---CH=CH2
• CPC Class Codes: D06P 3/796 using polymeric dyes
• CPC Class Codes: D06P 5/2005 Treatments with alpha, beta, gamma or other rays, e.g. stimulated rays
• CPC Class Codes: D06P 5/2077 after dyeing

Abstract

The present invention relates to a novel PVC-free plastisol composition that cures at a temperature much lower than conventional plastisols. Also disclosed is a method of applying the composition.

Claims

1. A plastisol composition comprising:

(a) an acrylate polymer; and

(b) a plasticizer mixture comprising at least three plasticizers selected from the group consisting of 2,2,4-trimethyl-1,3 pentanediol diisobutyrate, dioctyl terephthalate, dibutyl terephthalate, and benzyl butyl 1,2-cyclohexyldicarboxylate.

2. The plastisol composition of claim 1, wherein the ratio between the total weight of the plasticizers and the weight of the acrylate polymer ranges from about 5:

10 to about 10;

10.

3. The plastisol composition of claim 1, wherein more than about 80% of the acrylate polymer is methacrylate polymer.

4. The plastisol composition of claim 1, wherein the mean particle size of the acrylate polymer is less than about 0.060 mm.

5. The plastisol composition of claim 1, wherein the mean particle size of the acrylate polymer is about 0.045 mm.

6. The plastisol composition of claim 1, wherein the plasticizer mixture comprises 2,2,4-trimethyl-1,3 pentanediol diisobutyrate, and the ratio between the 2,2,4-trimethyl-1,3 pentanediol diisobutyrate and the acrylate polymer ranges from about 1:

200 and 1;

10 by weight.

7. The plastisol composition of claim 1, wherein the plasticizer comprises dioctyl terephthalate, and the ratio between the dioctyl terephthalate and the acrylate polymer ranges from about 1:

10 and 1;

3 by weight.

8. The plastisol composition of claim 1, wherein the plasticizer comprises benzyl butyl 1,2-cyclohexyldicarboxylate, and the ratio between the benzyl butyl 1,2-cyclohexyldicarboxylate and the acrylate polymer ranges from about 1:

10 and 1;

6 by weight.

9. The plastisol composition of claim 1, wherein the plasticizer comprises dibutyl terephthalate, and the ratio between the dibutyl terephthalate and the acrylate polymer ranges from about 1:

4 and 1;

2 by weight.

10. The plastisol composition of claim 1, further comprising at least one ingredient selected from the group consisting of a wetting agent, a dispersing agent, a cross-linking agent, a filler, a blowing agent, a rheology modifier, a thixotropic agent, a lubricant, an anti-static agent, a heat stabilizer, a pigment, a flame retardant, a foaming agent, a viscosity reducer, a dilatancy reducer, and an UV absorber.

11. The plastisol composition of claim 10, wherein the wetting agent and/or dispersing agent is selected from the group consisting of an alkoxylate, a polar acidic ester, an anionic electrolyte, an acidic polyether, polydimethylsiloxane, a fluoro-substituted polyacrylate, and any combination thereof.

12. The plastisol composition of claim 10, wherein the crosslinking agent is selected from the group consisting of a peroxide, a tri-acrylate, and any combination thereof.

13. The plastisol composition of claim 10, wherein the filler is selected from the group consisting of calcium carbonate, alumina trihydrate, micro sphere, silica, nepheline syenite, and any combination thereof.

14. The plastisol composition of claim 10, wherein the blowing agent is selected from the group consisting of an expandable microsphere, a copolymer of acrylate, and a combination thereof.

15. The plastisol composition of claim 10, wherein the rheology modifier and/or a thixotropic agent is silica.

16. The plastisol composition of claim 10 wherein the lubricant is selected from the group consisting of paraffin wax, polytetrafluoroethlene, and a combination thereof.

17. The plastisol composition of claim 10, wherein the anti-static agent is selected from the group consisting of an alkoxy titanate, an ammonium salt, and a combination thereof.

18. A method of using the plastisol composition of claim 1, comprising:

(a) applying the plastisol composition to a substrate; and

(b) exposing plastisol composition to a UV or heat source to cure the composition.

19. The method of claim 18, wherein the plastisol composition is exposed to the heat source at a temperature of lower than about 150°

C.

21. The method of claim 18, wherein the plastisol composition is exposed to the heat source for less than about 10 seconds.

20. (canceled)

22-25. -25. (canceled)