Hard coating film, hard coating film-applied substrate, coating material composition, and window material

Patent metadata

Field	Value
Publication number	US-2021324232-A1
Application number	US-201917271809-A
Country	US
Kind code	A1
Filing date	Aug 30, 2019
Priority date	Aug 31, 2018
Publication date	Oct 21, 2021
Grant date	—

Abstract

A hard coating film containing a polymer nanoparticle (A) and a matrix component (B), whereina Martens hardness HMA of the polymer nanoparticle (A) and a Martens hardness HMB of the matrix component (B) satisfy a relationship of HMB/HMA>1, anda Martens hardness HM of the hard coating film is 100 N/mm2 or more.

First claim

1 . A hard coating film comprising a polymer nanoparticle (A) and a matrix component (B), wherein
a Martens hardness HM A of the polymer nanoparticle (A) and a Martens hardness HM B of the matrix component (B) satisfy a relationship of HM B /HM A >1, and a Martens hardness HM of the hard coating film is 100 N/mm 2 or more.

2 . The hard coating film according to claim 1 , wherein when a Taber abrasion test is performed under conditions of an abrasive wheel CS-10F and a load of 500 g according to ASTM D1044, a difference between a haze at a rotation number of 500 and a haze at a rotation number of 10 is 10 or less.

3 . The hard coating film according to claim 1 , wherein when a Taber abrasion test is performed under conditions of an abrasive wheel CS-10F and a load of 500 g according to ASTM D1044, a difference between a haze at a rotation number of 1000 and a haze before the Taber abrasion test is 10 or less.

4 . The hard coating film according to claim 1 , wherein an elastic recovery rate η IT , as measured by an indentation test according to ISO14577-1, is 0.50 or more.

5 . The hard coating film according to claim 1 , wherein
the polymer nanoparticle (A) comprises a hydrolyzable silicon compound (a), and a content of the hydrolyzable silicon compound (a) in the polymer nanoparticle (A) is 50% by mass or more.

6 . The hard coating film according to claim 1 , wherein a film thickness of the hard coating film is 1 μm or more and 100 μm or less.

7 . The hard coating film according to claim 1 , wherein an average particle size of the polymer nanoparticle (A) is 10 nm or more and 400 nm or less.

8 . The hard coating film according to claim 1 , wherein a volume fraction of the polymer nanoparticle (A) in the hard coating film is 2% or more and 80% or less.

9 . The hard coating film according to claim 1 , wherein the hydrolyzable silicon compound (a) comprises one or more selected from a compound having an atomic group represented by the following formula (a-1) and a hydrolyzed product and a condensate thereof, and a compound represented by the following formula (a-2) and a hydrolyzed product and a condensate thereof:
—R 1 n1 SiX 1 3-n1   (a-1)

wherein R 1 represents a hydrogen atom, an alkyl group, an alkenyl group or an alkynyl group having 1 to 10 carbon atoms, or an aryl group, R 1 optionally has a substituent having halogen, a hydroxy group, a mercapto group, an amino group, a (meth)acryloyl group or an epoxy group, X 1 represents a hydrolyzable group, and n1 represents an integer of 0 to 2;
SiX 2 4   (a-2)

wherein X 2 represents a hydrolyzable group.

10 . The hard coating film according to claim 1 , wherein the matrix component (B) comprises a hydrolyzable silicon compound (b).

11 . The hard coating film according to claim 10 , wherein the hydrolyzable silicon compound (b) comprises one or more selected from a compound having an atomic group represented by the following formula (b-1) and a hydrolyzed product and a condensate thereof, and a compound represented by the following formula (b-2) and a hydrolyzed product and a condensate thereof:
—R 2 n2 SiX 3 3-n2   (b-1)

wherein R 2 represents a hydrogen atom, an alkyl group, an alkenyl group or an alkynyl group having 1 to 10 carbon atoms, or an aryl group, R 2 optionally has a substituent having halogen, a hydroxy group, a mercapto group, an amino group, a (meth)acryloyl group or an epoxy group, X 3 represents a hydrolyzable group, and n2 represents an integer of 0 to 2;
SiX 4 4   (b-2)

wherein X 4 represents a hydrolyzable group.

12 . The hard coating film according to claim 1 , wherein the matrix component (B) comprises an inorganic oxide (D).

13 . The hard coating film according to claim 12 , wherein an average particle size of the inorganic oxide (D) is 2 nm or more and 150 nm or less.

14 . The hard coating film according to claim 12 , wherein the inorganic oxide (D) is a silica particle.

15 . A hard coating film comprising a polymer nanoparticle (A) and a matrix component (B), wherein
a cohesion force F A of the polymer nanoparticle (A) and a cohesion force F B of the matrix component (B), as measured in a cohesion force mode of a scanning probe microscope, satisfy a relationship of F A /F B >1, and a Martens hardness HM of the hard coating film is 100 N/mm 2 or more.

16 . The hard coating film according to claim 1 , for use in an automobile member.

17 . A hard coating film-applied substrate, comprising
a substrate, and the hard coating film according to claim 1 , formed on one surface and/or both surfaces of the substrate.

18 . The hard coating film-applied substrate according to claim 17 , further comprising an adhesion layer disposed between the substrate and the hard coating film.

19 . The hard coating film-applied substrate according to claim 18 , wherein the adhesion layer comprises an adhesive emulsion particle (F).

20 . The hard coating film-applied substrate according to claim 19 , wherein an average particle size of the adhesive emulsion particle (F) is 300 nm or less.

21 . The hard coating film-applied substrate according to claim 18 , wherein the adhesion layer further comprises an inorganic oxide (G).

22 . The hard coating film-applied substrate according to claim 21 , wherein the inorganic oxide (G) is a silica particle.

23 . The hard coating film-applied substrate according to claim 17 , for use in an automobile member.

24 . A coating material composition comprising a polymer nanoparticle (A) and a matrix raw material component (B′), wherein
an elastic recovery rate η ITA of the polymer nanoparticle (A), as measured by an indentation test according to ISO14577-1, is 0.30 or more and 0.90 or less, and
a Martens hardness HM A of the polymer nanoparticle (A) and a Martens hardness HM B′ of the matrix raw material component (B′) satisfy a relationship of HM B′ /HM A >1.

25 . The coating material composition according to claim 24 , wherein
the polymer nanoparticle (A) comprises a hydrolyzable silicon compound (a), and the matrix raw material component (B′) comprises a hydrolyzable silicon compound (b).

26 . The coating material composition according to claim 25 , wherein a content of the hydrolyzable silicon compound (a) in the polymer nanoparticle (A) is 50% by mass or more.

27 . The coating material composition according to claim 24 , wherein a volume fraction of the polymer nanoparticle (A) based on a total of the polymer nanoparticle (A) and the matrix raw material component (B′) is 2 to 80%.

28 . The coating material composition according to claim 24 , wherein the polymer nanoparticle (A) has a functional group (e) having a secondary amide group and/or a tertiary amide group.

29 . The coating material composition according to claim 24 , wherein an elastic recovery rate rum of the matrix raw material component (B′), as measured by an indentation test according to ISO14577-1, is 0.60 or more and 0.95 or less.

30 . The coating material composition according to claim 24 , wherein the hydrolyzable silicon compound (a) comprises one or more selected from a compound having an atomic group represented by the following formula (a-1) and a hydrolyzed product and a condensate thereof, and a compound represented by the following

Assignees

• Asahi Chemical Ind

Inventors

• Takanohashi Hiroaki
• Hattori Kyohei
• Sasaki Megumi
• Sasaki Keigo
• Ogasawara Toshinobu

Classifications

• C09D201/00 Primary

  Coating compositions based on unspecified macromolecular compounds · CPC title

• C09D183/08

  containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen · CPC title

• C09D183/04 Primary

  Polysiloxanes · CPC title

• C09D7/65

  macromolecular (C09D7/41-C09D7/48 take precedence) · CPC title

• C09D7/61

  inorganic · CPC title