Process for preparing high barrier nanocomposites
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08J-005/10
C08K-003/34
C08L-031/00
출원번호
US-0092128
(2002-03-06)
발명자
/ 주소
Barbee, Robert Boyd
Matayabas, Jr., James Christopher
Trexler, Jr., Jack Wesley
Piner, Rodney Layne
Gilmer, John Walker
Connell, Gary Wayne
Owens, Jeffrey Todd
Turner, Sam Richard
출원인 / 주소
University of South Carolina Research Foundation
대리인 / 주소
Troutman Sanders Merchant & Haley LLP
인용정보
피인용 횟수 :
12인용 특허 :
122
초록▼
The present invention relates to processes for preparing a nanocomposite comprising: a. preparing an organoclay material by reacting a swellable layered clay with an onium ion represented by Formula (I): wherein i) M is nitrogen or phosphorus, ii) R1is a straight or branched alkyl group havi
The present invention relates to processes for preparing a nanocomposite comprising: a. preparing an organoclay material by reacting a swellable layered clay with an onium ion represented by Formula (I): wherein i) M is nitrogen or phosphorus, ii) R1is a straight or branched alkyl group having at least 8 carbon atoms, iii) R2,R3,and R4are independently selected from organic or oligomeric ligands or hydrogen, and iv) at least one of R2,R3,and R4comprises an alkylene oxide group having from 2 to 6 carbon atoms or a polyalkylene oxide group, and b. melt mixing the organoclay material with an expanding agent, and c. melt extruding the expanded organoclay and a polymer to provide a nanocomposite.
대표청구항▼
1. A process for preparing a nanocomposite comprising: a. preparing an organoclay material by reacting a swellable layered clay with an onium ion represented by Formula (I): wherein (i) M is nitrogen or phosphorus, (ii) R1is a straight or branched alkyl group having at least 8 carbon atoms,
1. A process for preparing a nanocomposite comprising: a. preparing an organoclay material by reacting a swellable layered clay with an onium ion represented by Formula (I): wherein (i) M is nitrogen or phosphorus, (ii) R1is a straight or branched alkyl group having at least 8 carbon atoms, (iii) R2,R3,and R4are independently selected from organic or oligomeric ligands or hydrogen, and (iv) at least one of R2,R3,and R4comprises an alkylene oxide group having from 2 to 6 carbon atoms or a polyalkylene oxide group, and b. melt mixing the organoclay material with an expanding agent, and c. melt extruding the expanded organoclay and a polymer to provide a nanocomposite. 2. The process of claim 1, wherein the organoclay material contains platelet particles and the expanding agent separates the platelet particles. 3. The process of claim 1, wherein R2,R3,and R4are not hydrogen. 4. The process of claim 1, wherein at least one of R2,R3,and R4is an alkyl group having from 1 to 4 carbon atoms. 5. The process of claim 1, wherein R1is a straight or branched alkyl group having from 8 to 25 carbon atoms. 6. The process of claim 1, wherein the alkylene oxide group is a 2-hydroxyethyl group. 7. The process of claim 1, wherein the onium ion is bis(2-hydroxyethyl)octadecyl methyl ammonium, or bis(2-hydroxyethyl) methyl tallow ammonium. 8. The process of claim 1, wherein the expanding agent is an oligomer. 9. The process of claim 1, wherein the expanding agent is a polymer having a molecular weight from about 250 to about 25,000. 10. The process of claim 1, wherein the expanding agent is an oligomeric polyamide. 11. The process of claim 1, wherein the polymer is a thermoplastic polymer, a mixture of thermoplastic polymers, a vulcanized resin, or a thermoplastic resin. 12. The process of claim 1, wherein the polymer is a polyester. 13. The process of claim 1, wherein the organoclay material is incorporated in an amount from about 0.01 to 20% by weight of the mixture. 14. The process of claim 1, wherein the polymer is a polyamide. 15. The process of claim 1, wherein the polymer and the expanding agent are polyamides. 16. The process of claim 1, wherein the expanding agent is an oligomer. 17. The process of claim 1, wherein the polymer is a copolyamide or terpolyamide. 18. The process of claim 1, wherein the polymer is poly(m-xylene adipamide). 19. A process for preparing a nanocomposite comprising: a. preparing an organoclay material by reacting a swellable layered clay with an onium ion represented by Formula (I): wherein (i) M is nitrogen or phosphorus, (ii) R1is a straight or branched alkyl group having at least 8-25 carbon atoms, (iii) R2,R3,and R4are organic ligands, and (iv) at least one of R2,R3,and R4is an alkylene oxide group having from 2 to 6 carbon atoms, and b. melt mixing the organoclay material with a polyamide oligomer, and c. melt extruding the expanded organoclay and a polyamide to provide a nanocomposite. 20. The nanocomposite produced by the process of claim 19.
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이 특허에 인용된 특허 (122)
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