Molding sheet for forming hard coat layer

Patent metadata

Field	Value
Publication number	US-9556317-B2
Application number	US-66560708-A
Country	US
Kind code	B2
Filing date	Jul 3, 2008
Priority date	Jul 3, 2007
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

The object of the present invention is to provide a molding sheet for forming a hard coat layer having an excellent shelf life or tracking ability to the mold in a semi-cured state, and having an excellent abrasion resistance after being cured completely, a molded body having a hard coat layer, and a method for manufacturing the same. The present invention relates to a molding sheet for forming a hard coat layer, comprising a layer consisted of a semi-cured material of a composition comprising:
a) an organosilicon compound, b) a ultraviolet ray curable-compound, and c) a silanol condensation catalyst on the substrate, and to a molded body using the same.

First claim

The invention claimed is:

1. A molding sheet comprising a semi-cured material of a composition comprising
a) an organosilicon compound represented by formula (I) and/or its condensate
RnSiX4−n   (I),

wherein R represents an organic group in which a carbon atom is directly bound to Si in the formula, and X represents a hydroxyl group or hydrolysable group; n represents 1 or 2; and when n is 2, R may be the same or different, and when (4 −n) is 2 or more, X may be the same or different,

b) a ultraviolet ray curable-compound,
c) a silanol condensation catalyst, and
d) a photopolymerization initiator, on a substrate,
wherein the organosilicon compound represented by formula (I) and/or its condensate which carbon number of R is 3 or less is 30 to 95 mol % with respect to the compound represented by formula (I) and/or its condensate, and which carbon number of R is 4 or more is 5 to 70 mol % with respect to the compound represented by formula (I) and or its condensate,
wherein the semi-cured material has no tack properties, and is cured so that no crack is generated by following the mold when molding.

2. The molding sheet according to claim 1 , wherein the ultraviolet ray-curable compound is 80 mass % or less with respect to the total mass of the solid content of the composition.

3. The molding sheet according to claim 1 , which is a sheet for in-mold lamination.

4. The molding sheet according to claim 1 , which is suitable for use as a transfer foil.

5. The transfer foil according to claim 4 , further comprising an adhesion layer.

6. The transfer foil according to claim 5 , wherein the adhesion layer is prepared from an aqueous organic resin as raw material.

7. The transfer foil according to claim 4 , wherein the transfer foil is a transfer foil for in-mold molding.

Assignees

• Kimura Nobuo
• Shibata Hiromoto
• Hasegawa Kazuki
• Nippon Soda Co

Inventors

• Kimura Nobuo
• Shibata Hiromoto
• Hasegawa Kazuki

Classifications

• G02B1/14

  Protective coatings, e.g. hard coatings · CPC title

• B29C45/14827 Primary

  using a transfer foil detachable from the insert · CPC title

• C08J7/0427

  with only one layer of a composition containing a polymer binder (with more layers C08J7/042) · CPC title

• C08J2483/00

  Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers · CPC title

• C09D183/02

  Polysilicates · CPC title