Packaging composition and packaging structure employing the same

Patent metadata

Field	Value
Publication number	US-2017145247-A1
Application number	US-201514982821-A
Country	US
Kind code	A1
Filing date	Dec 29, 2015
Priority date	Nov 20, 2015
Publication date	May 25, 2017
Grant date	—

Abstract

A packaging composition and packaging structure employing the same are disclosed. The packaging composition includes: (a) 30-70 parts by weight of free radical polymerizable monomer, and (b) 30-70 parts by weight of prepolymer. In particular, the oligomer is a reaction product of polythiol compound and polyester oligomer having acrylate functional group.

First claim

What is claimed is:

1 . A packaging composition, comprising:
(a) 30-70 parts by weight of free radical polymerizable monomer; and (b) 30-70 parts by weight of prepolymer, wherein the prepolymer is a reaction product of polythiol compound and polyester oligomer having at least one acrylate functional group, wherein the (a) free radical polymerizable monomer and the (b) prepolymer are 100 parts by weight in total.

2 . The packaging composition as claimed in claim 1 , wherein the (a) free radical polymerizable monomer2-carboxyethyl acrylate, ethoxylated bisphenol-A dimethacrylate, 2-phenylphenoxyethyl acrylate, dipropylene glycol diacrylate, dipentaerythritol penta-/hexa-acrylate, hexamethylene diacrylate, isobornyl acrylate, triallyl-1,3,5-triazine-2,4,6-trione, trimethylolpropane triacrylate, tri(propylene glycol) diacrylate, 4-Acryloylmorpholine, N-vinyl-2-pyrrolidone, tetrahydrofurfuryl acrylate, or a combination thereof.

3 . The packaging composition as claimed in claim 1 , wherein the polythiol compound is pentaerythritol tetra(3-mercaptopropionate), pentaerythritol tetrakis(3-mercaptobutylate), glycol di(3-mercaptopropionate, pentaerythritol tetramercaptoacetate, trimethylolpropane trimercaptoacetate, trimethylolpropane tris(3-mercaptopropionate), glycol dimercaptoacetate, ethoxylated trimethylpropane tri(3-mercapto-propionate), or a combination thereof.

4 . The packaging composition as claimed in claim 1 , wherein the polyester oligomer having at least one acrylate functional group is urethane acrylate oligomer, urethane acrylate oligomer, polyester acrylate oligomer, or a combination thereof.

5 . The packaging composition as claimed in claim 1 , further comprising:
(c) 200-500 parts by weight of thermal conductive powder.

6 . The packaging composition as claimed in claim 5 , wherein the (c) thermal conductive powder comprises boron nitride, aluminum oxide, aluminum nitride, magnesium nitride, zinc oxide, silicon carbide, beryllium oxide, diamond, tungsten carbide, or a combination thereof.

7 . The packaging composition as claimed in claim 1 , further comprising:
(d) 0.01-10 parts by weight of additive agent.

8 . The packaging composition as claimed in claim 7 , wherein the (d) additive agent comprises initiator, stabilizer, defoamer, leveling agent, wetting agent, thixotropic agent, antioxidant, UV absorber, adhesion promoter, or a combination thereof.

9 . A packaging structure, comprising:
a substrate; and a packaging layer disposed on the substrate, wherein the packaging layer is a cured product of the packaging composition as claimed in claim 1 .

10 . The packaging structure as claimed in claim 9 , further comprising:
an electronic element disposed on the substrate, wherein the packaging layer covers the electronic element.

11 . The packaging structure as claimed in claim 9 , wherein the substrate is a flexible substrate.

Assignees

• Ind Tech Res Inst

Inventors

• Ho Shou-Yi
• Chiou Kuo-Chan

Classifications

• H10W74/47

  comprising organic materials, e.g. plastics or resins · CPC title

• H05K2201/0209

  Inorganic, non-metallic particles · CPC title

• C08K2003/2227

  of aluminium · CPC title

• C08F283/105

  on to unsaturated polymers containing more than one epoxy radical per molecule · CPC title

• H05K3/285

  Permanent coating compositions · CPC title