Hard coat film, and radiation image conversion panel using the same

Patent metadata

Field	Value
Publication number	US-9230704-B2
Application number	US-201414451827-A
Country	US
Kind code	B2
Filing date	Aug 5, 2014
Priority date	Aug 13, 2013
Publication date	Jan 5, 2016
Grant date	Jan 5, 2016

Abstract

A hard coat film includes: a transparent base material; and a hard coat layer formed on the transparent base material, wherein the hard coat layer includes a cured product obtained by curing a composition including: an ultraviolet curable acrylate resin including one or more types of multifunctional acrylate; first microparticles having an average particle diameter of 5 nm or more and 100 nm or less; and a thermoplastic polyester resin.

First claim

What is claimed is:

1. A hard coat film comprising:
a transparent base material; and
a hard coat layer formed on the transparent base material,
wherein the hard coat layer includes a cured product obtained by curing a composition comprising:
an ultraviolet curable acrylate resin including one or more types of multifunctional acrylate;
first microparticles having an average particle diameter of 5 nm or more and 100 nm or less; and
a thermoplastic polyester resin.

2. The hard coat film according to claim 1 ,
wherein the composition includes the thermoplastic polyester resin at a ratio of 1 to 50 parts by weight with respect to 100 parts by weight of the ultraviolet curable acrylate resin.

3. A radiation image conversion panel comprising, while laminating in the order mentioned:
a supporter;
a phosphor layer; and
a protective layer including the hard coat film according to claim 2 .

4. The radiation image conversion panel according to claim 3 ,
wherein a side surface of the phosphor layer is coated with a resin.

5. The hard coat film according to claim 1 ,
wherein the composition includes the first microparticles at a ratio of 40 to 300 parts by weight with respect to 100 parts by weight of the ultraviolet curable acrylate resin.

6. The hard coat film according to claim 5 ,
wherein the composition further comprises second microparticles having an average particle diameter of 0.3 μm or more and 1 μm or less.

7. A radiation image conversion panel comprising, while laminating in the order mentioned:
a supporter;
a phosphor layer; and
a protective layer including the hard coat film according to claim 6 .

8. The radiation image conversion panel according to claim 7 ,
wherein a side surface of the phosphor layer is coated with a resin.

9. A radiation image conversion panel comprising, while laminating in the order mentioned:
a supporter;
a phosphor layer; and
a protective layer including the hard coat film according to claim 5 .

10. The radiation image conversion panel according to claim 9 ,
wherein a side surface of the phosphor layer is coated with a resin.

11. The hard coat film according to claim 1 ,
wherein the thermoplastic polyester resin has a glass-transition temperature (Tg) of 40° C. or higher.

12. A radiation image conversion panel comprising, while laminating in the order mentioned:
a supporter;
a phosphor layer; and
a protective layer including the hard coat film according to claim 11 .

13. The radiation image conversion panel according to claim 12 ,
wherein a side surface of the phosphor layer is coated with a resin.

14. The hard coat film according to claim 1 ,
wherein the composition further comprises a fluorine compound.

15. A radiation image conversion panel comprising, while laminating in the order mentioned:
a supporter;
a phosphor layer; and
a protective layer including the hard coat film according to claim 14 .

16. The hard coat film according to claim 1 , further comprising an adhesive layer containing matting agent particles, on a surface of the transparent base material opposite to the hard coat layer,
wherein an average particle diameter M of the matting agent particles and a film thickness d of the adhesive layer satisfy the relation of M>d.

17. A radiation image conversion panel comprising, while laminating in the order mentioned:
a supporter;
a phosphor layer; and
a protective layer including the hard coat film according to claim 16 .

18. A radiation image conversion panel comprising, while laminating in the order mentioned:
a supporter;
a phosphor layer; and
a protective layer including the hard coat film according to claim 1 .

19. The radiation image conversion panel according to claim 18 ,
wherein a side surface of the phosphor layer is coated with a resin.

Assignees

• Konica Minolta Inc

Inventors

• Yamamoto Yoshito
• Yanagita Takafumi
• Komatsu Hideki

Classifications

• C09D133/08

  Homopolymers or copolymers of acrylic acid esters · CPC title

• Y10T428/24364

  with transparent or protective coating · CPC title

• G21K4/00 Primary

  Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens (photographic processes using X-ray intensifiers G03C5/17; discharge tubes comprising luminescent screens H01J1/62; cathode ray tubes for X-ray conversion with optical output H01J31/50) · CPC title

• Y10T428/25

  Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles · CPC title

• C08L2312/06

  by radiation · CPC title