Active energy ray curable composition, active energy ray curable ink, composition stored container, two dimensional or three dimensional image forming apparatus, image forming method, cured material, and processed product

Patent metadata

Field	Value
Publication number	US-9695325-B2
Application number	US-201514853141-A
Country	US
Kind code	B2
Filing date	Sep 14, 2015
Priority date	Sep 16, 2014
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

An active energy ray curable composition includes a non-polymerizable resin; and polymerizable compounds comprising a mono-functional monomer having a single polymerizable unsaturated ethylene double bond, wherein the following relations are satisfied: ΔTg=|Tg p −Tg m }≧19 degrees C., where Tg p represents a glass transition temperature of the non-polymerizable resin and Tg m represents a glass transition temperature of a homopolymer of the mono-functional monomer, Tg H ≧10 degrees C., where Tg H represents the higher of Tg p and Tg m , and Tg L ≦40 degrees C., where Tg L represents the lower of Tg p and Tg m .

First claim

What is claimed is:

1. An active energy ray curable composition comprising:
a non-polymerizable resin; and
polymerizable compounds comprising a mono-functional monomer having a single polymerizable unsaturated ethylene double bond,
wherein the following relations are satisfied:
Δ Tg=|Tg p −Tg m |≧20 degrees C.,

where Tg p represents a glass transition temperature of the non-polymerizable resin and Tg m represents a glass transition temperature of a homopolymer of the mono-functional monomer,
Tg H ≧20 degrees C.,

where Tg H represents the higher of Tg p and Tg m , and
Tg L ≦0 degrees C.,

where Tg L represents the lower of Tg p and Tg m .

2. The active energy ray curable composition according to claim 1 , wherein the non-polymerizable resin is selected from the group consisting of an acylic-based resin, an epoxy-based resin, a ketone-based resin, a nitrocellulose-based resin, a phenoxy-based resin, a polyester-based resin, a polyurethane-based resin, a polyvinyl chloride-based resin, and a mixture thereof.

3. The active energy ray curable composition according to claim 1 , further comprising a multi-functional monomer having at least two polymerizable unsaturated ethylene bonds accounting for 15 percent by mass or less of a total amount of the polymerizable compounds.

4. The active energy ray curable composition according to claim 1 , further comprising an oligomer having a polymerizable unsaturated ethylene bond accounting for 10 percent by mass or less of a total amount of polymerizable compounds.

5. The active energy ray curable composition according to claim 1 , wherein the active energy ray curable composition is used for additive manufacturing.

6. An active energy ray curable ink comprising:
the active energy ray curable composition of claim 1 .

7. The active energy ray curable ink according to claim 6 , wherein the active energy ray curable ink is used for inkjet.

8. A composition stored container comprising:
the active energy ray curable composition of claim 1 .

9. A two dimensional or three dimensional image forming apparatus comprising:
a storing part comprising the active energy ray curable composition of claim 1 ; and
an irradiator to emit an active energy ray.

10. An image forming method comprising:
irradiating the active energy ray curable composition of claim 1 with an active energy ray.

11. A cured material formed by curing the active energy ray curable composition of claim 1 .

12. A processed product formed by processing the cured material of claim 11 .

13. The active energy ray curable composition according to claim 1 , wherein the mono-functional monomer is at least one selected from the group consisting of phenoxyethyl acrylate, tetrahydrofurfuryl acrylate, isobornyl acrylate, cyclic trimethyl propane formal monoacrylate, 2-methoxyethyl acrylate, isooctyl acrylate, 3,3,5-trimethylcyclohexane acrylate, and cyclohexyl acrylate.

14. The active energy ray curable composition according to claim 1 , wherein the mono-functional monomer is at least one selected from the group consisting of tetrahydrofurfuryl acrylate, isobornyl acrylate, cyclic trimethyl propane formal monoacrylate, 2-methoxyethyl acrylate, isooctyl acrylate, 3,3,5-trimethylcyclohexane acrylate, and cyclohexyl acrylate.

15. An active energy ray curable composition comprising:
a non-polymerizable resin; and
polymerizable compounds comprising a mono-functional monomer having a single polymerizable unsaturated ethylene double bond,
wherein the following relations are satisfied:
Δ Tg =|Tg p −Tg m |≧19 degrees C.,

where Tg p represents a glass transition temperature of the non-polymerizable resin and Tg m represents a glass transition temperature of a homopolymer of the mono-functional monomer,
Tg H ≧10 degrees C.,

where Tg H represents the higher of Tg p and Tg m , and
Tg L ≦40 degrees C.,

where Tg L represents the lower of Tg p and Tg m ,
wherein the mono-functional monomer is at least one selected from the group consisting of tetrahydrofurfuryl acrylate, isobornyl acrylate, cyclic trimethyl propane formal monoacrylate, 2-methoxvethyl acrylate, isooctyl acrylate, 3,3,5-trimethylcyclohexane acrylate, and cyclohexyl acrylate.

16. The active energy ray curable composition according to claim 15 , wherein the following relations are satisfied:
Tg H ≧14 degrees C.,

where Tg H represents the higher of Tg p and Tg m , and
Tg L ≦20 degrees C.,

where Tg L represents the lower of Tg p and Tg m .

17. The active energy ray curable composition according to claim 15 , wherein the following relations are satisfied:
Tg p ≧10 degrees C., and

Tg m ≦40 degrees.

Assignees

• Kohzuki Shizuka
• Kusahara Teruki
• Nakane Hiroki
• Ricoh Co Ltd

Inventors

• Kohzuki Shizuka
• Kusahara Teruki
• Nakane Hiroki

Classifications

• C09D11/101

  Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing · CPC title

• C09D11/322

  Pigment inks · CPC title

• C09D11/10 Primary

  based on artificial resins · CPC title