Siloxane-based resin composition

• US 8,389,649 B2
• Filed: 05/27/2008
• Issued: 03/05/2013
• Est. Priority Date: 01/28/2008
• Status: Active Grant

• Current Assignee: Toray Industries Incorporated
• Original Assignee: Toray Industries Incorporated
• Inventors: Suwa, Mitsuhito, Iimori, Hirokazu
• Primary Examiner(s): ZIMMER, MARC S
• Application Number:
  US12/864,832
• Publication Number:
  US 20100316953A1
• Time in Patent Office: 1,743 Days
• Field of Search: None
• US Class Current: 525/477
• CPC Class Codes: C07F 7/0838 Compounds with one or more Si-O-Si sequences compounds with a ring containing only alternating Si and O atoms, i.e. cyclosilanes C07F7/21
• CPC Class Codes: C07F 7/1804 Compounds having Si-O-C linkages Si-O-acyl linkages C07F7/1896
• CPC Class Codes: C08G 77/26 nitrogen-containing groups
• CPC Class Codes: C08K 5/5477 containing nitrogen in a heterocyclic ring
• CPC Class Codes: C08L 83/04 Polysiloxanes
• CPC Class Codes: C08L 83/06 containing silicon bound to oxygen-containing groups C08L83/12 takes precedence
• CPC Class Codes: C08L 83/08 containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
• CPC Class Codes: C09D 183/08 containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
• CPC Class Codes: C09D 183/14 in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms C09D183/10 takes precedence

Abstract

The present invention is a siloxane-based resin composition including a siloxane-based resin and an imidosilane compound having a specific structure. Moreover, the present invention is a siloxane-based resin composition including a siloxane-based resin which is a reactive product to be obtained by hydrolyzing an alkoxysilane compound and an imidosilane compound having a specific structure and then making the resulting hydrolysate undergo a condensation reaction. According to the present invention, it is possible to form a cured film excellent in adhesion.

Claims

1. A siloxane-based resin composition comprising (a) a siloxane-based resin and (b) an imidosilane compound represented by the following formula (4):

2. The siloxane-based resin composition according to claim 1, wherein the siloxane-based resin (a) is (a-1) a reaction product to be obtained by hydrolyzing one or more alkoxysilane compounds each represented by any one of the following formulae (1) to (3) and then making the resulting hydrolysate undergo a condensation reaction:

R¹Si(OR²)₃ 

 

(1)

wherein in formula (1), R¹ represents hydrogen, an alkyl group, an alkenyl group, an aryl group, or a substituted analogue thereof; and

R², which may be the same or different, represents a methyl group, an ethyl group, a propyl group, an isopropyl group, or a butyl group;

R³R⁴Si(OR⁵)₂ 

 

(2)

wherein in formula (2), R³ and R⁴ each represent hydrogen, an alkyl group, an alkenyl group, an aryl group or a substituted analogue thereof; and

R⁵, which may be the same or different, represents a methyl group, an ethyl group, a propyl group, an isopropyl group, or a butyl group;

Si(OR⁶)₄ 

 

(3)

wherein in formula (3), R⁶, which may be the same or different, represents a methyl group, an ethyl group, a propyl group, an isopropyl group, or a butyl group.

3. The siloxane-based resin composition according to claim 2, wherein the reaction product (a-1) is a reaction product to be obtained by hydrolyzing one or more alkoxysilane compounds each represented by any one of the following formulae (1) to (3) in the presence of at least one kind of compound particles selected from the group consisting of silicon compound particles, aluminum compound particles, tin compound particles, titanium compound particles, and zirconium compound particles and then making the resulting hydrolysate undergo a condensation reaction.

4. The siloxane-based resin composition according to claim 1, wherein the siloxane-based resin (a) contains fluorine.

5. The siloxane-based resin composition according to claim 1 which contains (c) an acid generator or a base generator.

6. A material for image sensors which comprises the siloxane-based resin composition according to claim 1.

7. A cured film material obtained by curing the siloxane-based resin composition according to claim 1.

8. An optical object comprising the cured film according to claim 7.

9. An image sensor comprising the cured film according to claim 7.

10. The siloxane-based resin composition according to claim 1, further comprising (d) a crosslinking compound and/or a crosslinking compound represented by the following formula (8):

11. An adhesion improving agent comprising an imidosilane compound represented by the following formula (4):