Polyester resins and polyester containers having reduced frictional properties
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08G-064/00
C08G-063/02
출원번호
UP-0129310
(2008-05-29)
등록번호
US-7858731
(2011-02-24)
발명자
/ 주소
Edwards, Walter Lee
Nichols, Carl Steven
Schiavone, Robert Joseph
Griffith, Sharon Sue
Moore, Tony Clifford
출원인 / 주소
Wellman, Inc.
대리인 / 주소
Summa, Additon & Ashe, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
134
초록▼
The invention embraces polyester resins and containers that include surface-modified talc. The invention also embraces a method for the late introduction of surface-modified talc via a reactive carrier to achieve a polyester resin that is capable of being formed into low-haze, high-clarity bottles p
The invention embraces polyester resins and containers that include surface-modified talc. The invention also embraces a method for the late introduction of surface-modified talc via a reactive carrier to achieve a polyester resin that is capable of being formed into low-haze, high-clarity bottles possessing reduced coefficient of friction.
대표청구항▼
The invention claimed is: 1. A polyester bottle resin, comprising polyethylene terephthalate and less than about 200 ppm of surface-modified talc having an average particle size of less than about ten microns. 2. A polyester bottle resin according to claim 1, comprising less than about 100 ppm of
The invention claimed is: 1. A polyester bottle resin, comprising polyethylene terephthalate and less than about 200 ppm of surface-modified talc having an average particle size of less than about ten microns. 2. A polyester bottle resin according to claim 1, comprising less than about 100 ppm of surface-modified talc. 3. A polyester bottle resin according to claim 2, comprising more than about 20 ppm of surface-modified talc. 4. A polyester bottle resin according to claim 1, comprising between about 40 and 100 ppm of surface-modified talc. 5. A polyester bottle resin according to claim 1, wherein the surface-modified talc comprises talc treated with an organosilane coupling agent. 6. A polyester bottle resin according to claim 5, comprising between about 40 and 100 ppm of surface-modified talc. 7. A polyester bottle resin according to claim 1, wherein the surface-modified talc comprises talc treated with an aminosilane coupling agent. 8. A polyester bottle resin according to claim 1, comprising a polyol having a molecular weight of between about 300 and 10,000 g/mol, wherein the polyol (i) is the delivery vehicle for the introduction of the surface-modified talc into the polyethylene terephthalate and (ii) is present in the polyester resin in an amount less than about one weight percent. 9. A polyester bottle resin according to claim 8, wherein the polyol is present in the polyester resin in an amount less than about 500 ppm. 10. A polyester bottle resin according to claim 1, comprising polyethylene glycol having a molecular weight of less than about 10,000 g/mol, wherein the polyethylene glycol (i) is a reactive carrier that introduces the surface-modified talc into the polyethylene terephthalate and (ii) is present in the polyester resin in an amount less than about 0.1 weight percent. 11. A polyester bottle resin, comprising polyethylene terephthalate and less than about 200 ppm of surface-modified talc having an average particle size of less than about two microns. 12. A polyester bottle resin according to claim 11, comprising less than about 100 ppm of surface-modified talc. 13. A polyester bottle resin according to claim 12, comprising more than about 20 ppm of surface-modified talc. 14. A polyester bottle resin according to claim 11, comprising between about 40 and 100 ppm of surface-modified talc. 15. A polyester bottle resin according to claim 11, wherein the surface-modified talc comprises talc treated with an organosilane coupling agent. 16. A polyester bottle resin according to claim 15, comprising between about 40 and 150 ppm of surface-modified talc treated with an organosilane coupling agent. 17. A polyester bottle resin according to claim 16, wherein the surface-modified talc comprises talc treated with an aminosilane coupling agent at a loading of between about 0.5 and one weight percent. 18. A polyester bottle resin according to claim 15, comprising between about 60 and 100 ppm of surface-modified talc treated with an organosilane coupling agent. 19. A polyester bottle resin according to claim 11, comprising polyethylene glycol having a molecular weight of less than about 10,000 g/mol, wherein the polyethylene glycol (i) is a reactive carrier that introduces the surface-modified talc into the polyethylene terephthalate and (ii) is present in the polyester resin in an amount less than about 500 ppm. 20. A polyester container, comprising: polyethylene terephthalate polymers; and surface-modified talc having an average particle size of less than about ten microns, the surface-modified talc being present in said polyester container in an amount less than about 200 ppm. 21. A polyester container according to claim 20, wherein the surface-modified talc has an average particle size of less than about two microns. 22. A polyester container according to claim 20, wherein the surface-modified talc is present in said polyester container in an amount between about 40 and 150 ppm. 23. A polyester container according to claim 20, wherein the surface-modified talc is present in said polyester container in an amount between about 60 and 100 ppm. 24. A polyester container according to claim 20, wherein the surface-modified talc is treated with an organosilane coupling agent. 25. A polyester container according to claim 20, wherein, as compared with an otherwise identical container without talc, said polyester container possesses reduced coefficient of friction and comparable sidewall haze. 26. A polyester container according to claim 20, wherein, as compared with an otherwise identical container without talc, said polyester container possesses reduced coefficient of friction of about 90 percent. 27. A polyester container according to claim 20, wherein said polyester container is a straight-walled two-liter soft drink bottle. 28. A polyester container, comprising: polyethylene terephthalate polymers; and less than about 200 ppm of surface-modified talc having an average particle size of less than about ten microns; wherein said polyester container possesses reduced coefficient of friction as compared with an otherwise identical talc-free container. 29. A polyester container according to claim 28, wherein the surface-modified talc has an average particle size of less than about two microns. 30. A polyester container according to claim 29, wherein the surface-modified talc is present in said polyester container in an amount less than 150 ppm. 31. A polyester container according to claim 28, wherein the surface-modified talc is present in said polyester container in an amount less than 100 ppm. 32. A polyester container according to claim 31, wherein the surface-modified talc is present in said polyester container in an amount more than 20 ppm. 33. A polyester container according to claim 28, wherein the surface-modified talc is treated with an organosilane coupling agent. 34. A polyester bottle, comprising: polyethylene terephthalate polymers; and talc treated with a organosilane coupling agent, the talc being present in said polyester bottle in an amount between about 40 and 150 ppm; wherein, as compared with an otherwise identical polyester bottle without talc, said polyester bottle possesses reduced coefficient of friction; and wherein, as compared with an otherwise identical polyester bottle that includes talc without surface modification, said polyester bottle possesses reduced sidewall haze. 35. A polyester bottle according to claim 34, wherein the organosilane-treated talc has an average particle size of less than about ten microns. 36. A polyester bottle according to claim 34, wherein the organosilane-treated talc has an average particle size of less than about two microns. 37. A polyester bottle according to claim 34, wherein, as compared with an otherwise identical talc-free bottle, said polyester bottle possesses a 90-percent reduction in coefficient of friction.
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이 특허에 인용된 특허 (134)
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