Method for manufacturing hybrid packaging material

Patent metadata

Field	Value
Publication number	US-10294378-B2
Application number	US-201314082328-A
Country	US
Kind code	B2
Filing date	Nov 18, 2013
Priority date	Mar 14, 2012
Publication date	May 21, 2019
Grant date	May 21, 2019

Abstract

Disclosed herein is a method of manufacturing a hybrid packaging material, comprising the steps of: (a) forming a colloidal inorganic nanosol; (b) surface-treating the inorganic nanosol of step (a) with an organic metal alkoxide containing an organic function group by stirring the inorganic nanosol together with the organic metal alkoxide; (c) replacing a solvent of the inorganic nanosol with an organic solvent different in type from the solvent to prepare an organic solvent-type inorganic nanosol; (d) substituting the organic solvent of the inorganic nanosol of step (c) with a functional organic monomer or a silicon compound, followed by concentration to prepare a solvent-free organic-inorganic hybrid material; and (e) adding a nanoclay dispersed in a solvent to the solvent-free organic-inorganic hybrid material.

First claim

What is claimed is:

1. A method of manufacturing a hybrid packaging material, comprising the steps of:
(a) mixing tetramethylorthosilicate (TMOS) to a solvent to form a colloidal inorganic nanosol;
(b) performing a primary surface treatment of the inorganic nanosol by adding methyltrimethoxysilane (MTMS) to the inorganic nanosol and performing a secondary surface treatment of the inorganic nanosol by adding methacrylpropyltrimethoxysilane (MPTMS) to the inorganic nanosol;
(c) replacing the solvent of the inorganic nanosol with an organic solvent different in type from the solvent to prepare an organic solvent-type inorganic nanosol; and
(d) substituting the organic solvent of the inorganic nanosol of said step (c) with a functional organic monomer or a silicon compound followed by concentration to prepare a solvent-free organic-inorganic hybrid material.

2. The method of claim 1 , wherein a ratio of MTMS and MPTMS added to the inorganic nanosol is 10:1.

3. The method of claim 2 , wherein the organic solvent of the inorganic nanosol is substituted with a functional organic monomer or a silicon compound in said step (d) by volatilizing the organic solvent using difference of boiling points between the organic solvent and said substituting material.

4. The method of claim 3 , wherein the organic solvent of the inorganic nanosol is substituted with a functional organic monomer or a silicon compound in said step (d) in a weight ratio in which said solvent-free organic-inorganic hybrid material exhibits a light transmittance rate of at least 90% at a thickness of 10 μm.

5. The method of claim 4 , wherein the organic solvent of the inorganic nanosol is substituted with a functional organic monomer or a silicon compound in said step (d) such that the solvent-free organic-inorganic hybrid material is substantially free of the organic solvent.

6. The method of claim 5 , wherein the steps (a) and (b) are performed by any one of room-temperature stirring, a supercritical reaction and a hydrothermal reaction.

7. The method of claim 4 , wherein the organic solvent replaced in said step (c) is any one selected from the group consisting of alcohols, glycols and cellosolves.

8. The method of claim 7 , wherein the glycol is any one selected from the group consisting of ethylene glycol, propylene glycol, polyethylene glycol, diethylene glycol, triethylene glycol, glycol ether, glycol ether ester, alipolyethylene dioxide, ethyleneglycol diformate, propyleneglycol alginate, propyleneglycol methyl ether propionate, ethyleneglycol diethyl ether, propoxylated neopentyl glycol diacrylate, chlorinated polyethylene, aliamyl glycolate, diethyleneglycol monoethyl ether, neopentyl glycol dimethacrylate, neopentylene glycol, aliamyl glycolate, butyl glycol, monoethylene glycol, dipropylene glycol monomethyl ether, propylene glycol methyl ether acetate, neopentyl glycol diacrylate, propylene glycol monomethyl ether, tetraethylene glycol, ethylene golycol ether acetate, ethylene glycol dibutyl ether, dipropylene glycol diacrylate, butylene glycol dimethacrylate, diethylene glycol ethyl ether, tripropylene glycol diacrylate, diethylene glycol monobutyl ether, tetraethylene glycol dimethacrylate, ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, and triethylene glycol monomethyl ether.

9. The method of claim 7 , wherein the cellosolve is any one selected from the group consisting of ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, ethylene glycol monophenyl ether, ethylene glycol monobenzyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, ethylent glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, ethylene glycol methyl ether acetate, ethylene glycol monoethyl ether acetate, and ethylene glycol monobutyl ether acetate.

10. The method of claim 7 , further comprising the step of mixing a thermocurable or photocurable polymer to the solvent-free organic-inorganic hybrid material without a solvent after said step (d).

11. The method of claim 10 , wherein the thermocurable polymer is any one selected from organic polymers containing at least one of thermopolymerizable organic functional groups such as a vinyl group, an acrylic group, an epoxy group, an amino group and an amide group and thermocurable organic functional groups at opposite ends of the backbone of the polymer or a side chain of the polymer.

12. The method of claim 11 , wherein the thermocurable polymer is thermocured in a presence of a thermoinitiator, said thermoinitiator being selected from the group consisting of an azo-based thermoinitiator, a cyanovaleric acid-based thermoinitiator, a potassium sulfate-based thermoinitiator, a peroxide-based thermoinitiator, and a combination thereof.

13. The method of claim 10 , wherein the photocurable polymer is any one selected from among organic polymers containing at least one of photopolymerizable organic functional groups including a vinyl group, an ally group, an acrylic group and a methacrylate group and photocurable organic function groups.

14. The method of claim 13 , wherein the photocurable polymer is photocured in a presence of a photoinitirator, said photoinitiator being selected from the group consisting of a benzoic ether-based photoinitiator, a benzyl ketal-based photoinitiator, a dialkoylacetophenone-based photoinitiator, a hydroxyalkylphenone-based photoinitiator and an aminoalkylphenone-based photoinitiator, and a combination thereof.

15. The method of claim 7 , further comprising a step of adding a nanoclay to the solvent-free organic-inorganic hybrid material.

16. The method of claim 7 , wherein the alcohol is methoxy ethanol.

17. The method of claim 2 , wherein the functional organic monomer of said step (d) is an organic monomer containing one or more of thermo- and photo-polymerizable vinyl group, allyl group, acrylic group, methacrylate group, epoxy group, amino group and amide group, or is an organic monomer containing at least one of thermo- and photo-polymerizable organic functional groups.

18. The method of claim 17 , wherein, when the functional organic monomer is a thermocurable monomer, a thermoinitiator is added, and the thermoinitiator is at least one selected from the group consisting of an azo-based thermoinitiator, a cyanovaleric acid-based thermoinitiator, a potassium sulfate-based thermoinitiator and a peroxide-based thermoinitiator.

19. The method of claim 17 , wherein, when the functional organic monomer is a photocurable monomer, a photoinitiator is added, and the photoinitiator is at least one selected from the group consisting of a benzoic ether-based photoinitiator, a benzyl ketal-based photoinitiator, a dialkoylacetophenone-based photoinitiator, a hydroxyalkylphenone-based photoinitiator and an aminoalkylphenone-based photoinitiator.

20. The method of claim 2 , wherein the silicon compound of said step (d) is an organic-inorganic hybrid material having a straight-chain, branched-chain or cyclic hydrocarbon group at any one of four bonding sites of a silicon atom while having siloxane (—Si—O—) as a basic structure, and the cyclic hydrocarbon group includes at least one selected from the group consisting of an alkyl group, a ketone group, an acrylic group, a methacrylic group, an allyl group, an alkoxy group, an aromatic group, an amino group, an ether group, an ester group, a nitro group, a hydroxyl group, a cyclobutene group, a

Assignees

• Keri Korea Electrotechnology Res Inst

Inventors

• Kang Dong-Jun
• Park Hoy-Yul
• Ahn Myeong-Sang

Classifications

• C08K5/5419

  containing at least one Si—C bond · CPC title

• C08L83/02

  Polysilicates · CPC title

• C01B33/145

  Preparation of hydroorganosols, organosols or dispersions in an organic medium · CPC title

• C08G77/02

  Polysilicates · CPC title

• C09D7/62 Primary

  modified by treatment with other compounds · CPC title