Curable composition and electronic device employing the same

Patent metadata

Field	Value
Publication number	US-11773222-B2
Application number	US-202117539454-A
Country	US
Kind code	B2
Filing date	Dec 1, 2021
Priority date	Aug 25, 2021
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A curable composition and an electronic device employing the same are provided. The curable composition includes 100 parts by mole of a first siloxane compound represented by Formula (I)

wherein n is 8 to 232, wherein R 1 is independently C 1-3 alkyl group; 1 to 15 parts by mole of a second siloxane compound represented by Formula (II)

wherein x≥2, y≥2, and x/y is between 0.1 and 3, and R 2 , R 3 and R 4 are independently C 1-3 alkyl group; 1 to 15 parts by mole of a third siloxane compound represented by Formula (III)

and 90 to 250 parts by mole of a curing agent represented by Formula (IV)

wherein m is 7 to 230, wherein R 5 is independently C 1-3 alkyl group.

First claim

What is claimed is:

1. A curable composition, comprising:
100 parts by mole of a first siloxane compound represented by Formula (I), wherein n is 8 to 232, wherein R 1 is independently C 1-3 alkyl group;

1 to 15 parts by mole of a second siloxane compound represented by Formula (II), wherein x≥2, y≥2, and x/y is between 0.1 and 3, wherein R 2 , R 3 and R 4 are independently C 1-3 alkyl group;

1 to 15 parts by mole of a third siloxane compound represented by Formula (III); and

90 to 250 parts by mole of a curing agent represented by Formula (IV), wherein m is 7 to 230, and R 5 is independently C 1-3 alkyl group

2. The curable composition as claimed in claim 1 , wherein the first siloxane compound represented by Formula (I) has a weight average molecular weight of 1,000 g/mol to 18,000 g/mol.

3. The curable composition as claimed in claim 1 , wherein the second siloxane compound represented by Formula (II) has a weight average molecular weight of 1,800 g/mol to 4,000 g/mol.

4. The curable composition as claimed in claim 1 , wherein the curing agent represented by Formula (IV) has a weight average molecular weight of 1,000 g/mol to 18,000 g/mol.

5. The curable composition as claimed in claim 1 , further comprising:
a reaction accelerator, wherein the reaction accelerator has a weight percentage of 0.1 wt % to 1 wt %, based on the total weight of the first siloxane compound, the second siloxane compound, and the third siloxane compound.

6. The curable composition as claimed in claim 5 , wherein the reaction accelerator comprises quaternary phosphate, amine, or a combination thereof.

7. The curable composition as claimed in claim 1 , further comprising:
an additive, wherein the additive has a weight percentage of 0.1 wt % to 5 wt %, based on the total weight of the first siloxane compound, the second siloxane compound, and the third siloxane compound.

8. The curable composition as claimed in claim 7 , wherein the additive comprises an adhesion promoter, antioxidant, defoamer, levelling agent, stabilizer, or a combination thereof.

9. An electronic device, comprising:
a substrate; and
a film covered on the substrate, wherein the film is prepared from the curable composition as claimed in claim 1 .

Assignees

• Ind Tech Res Inst

Inventors

• Lin Chih-Hao
• Huang Yueh-Chuan
• Chen Kai-Chi
• Chen Wen-Bin

Classifications

• C08G77/14 Primary

  containing silicon bound to oxygen-containing groups · CPC title

• C08G77/045

  containing less than 25 silicon atoms · CPC title

• C08K5/17

  Amines; Quaternary ammonium compounds · CPC title

• C08K5/521

  Esters of phosphoric acids, e.g. of H3PO4 · CPC title

• C08L83/06

  containing silicon bound to oxygen-containing groups (C08L83/12 takes precedence) · CPC title