[특허]Alumina-enhanced polyester resins and methods for making the same

Alumina-enhanced polyester resins and methods for making the same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08K-009/04 C08K-003/22 B29D-022/00
출원번호	US-0119723 (2008-05-13)
등록번호	US-8338505 (2012-12-25)
발명자 / 주소	Griffith, Sharon Sue Moore, Tony Clifford Schiavone, Robert Joseph
출원인 / 주소	DAK Americas Mississippi Inc.
대리인 / 주소	Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
인용정보	피인용 횟수 : 0 인용 특허 : 25

초록 ▼

The invention embraces polymer resins, such as polyethylene terephthalate resin, that includes surface-compatibilized alumina. The invention also embraces methods of making polyethylene terephthalate resins that are capable of being formed into low-haze, high-clarity articles possessing reduced coef

대표청구항 ▼

1. A polyester bottle resin, comprising: polyethylene terephthalate; andsurface-compatibilized alumina comprising alumina particles chemically bonded to para-toluene sulfonic acid in an amount of 0.5-3 wt % based on the weight of the alumina, wherein the surface-compatibilized alumina is present in the polyester bottle resin as agglomerates having an average volume-weighted Feret's diameter of between 4 and 10 microns wherein agglomerates having an average Feret's diameter of greater than 10 μm are eliminated; andwherein the polyester bottle resin has a total alumina loading of between about 5 and 1,500 ppm. 2. A polyester bottle resin according to claim 1, wherein the polyester bottle resin has a total alumina loading of between about 50 and 500 ppm. 3. A polyester bottle resin according to claim 1, wherein the surface-compatibilized alumina is present in the polyester bottle resin as agglomerates having an average volume-weighted Feret's diameter of between about 5 and 10 microns. 4. A polyester bottle resin according to claim 1, wherein the surface-compatibilized alumina is present in the polyester bottle resin as agglomerates having an average Feret's diameter of between about 7 and 10 microns. 5. A polyester bottle resin according to claim 1, wherein the alumina possesses an index of refraction that matches that of the polyethylene terephthalate within 0.1. 6. A polyester bottle resin according to claim 1, wherein the alumina possesses an index of refraction that matches that of the polyethylene terephthalate within 0.01. 7. A polyester bottle resin according to claim 1, wherein the polyethylene terephthalate includes between about 2 and 8 mole percent comonomer substitution. 8. A polyester bottle resin according to claim 1, wherein the polyester bottle resin possesses less than 10 percent haze at a thickness of between 4.5 and 6.0 mm as measured in a step parison. 9. A polyester preform or a polyester container formed from the polyester bottle resin of claim 1. 10. A polyester container, comprising: polyethylene terephthalate; andsurface-compatibilized alumina comprising alumina particles chemically bonded to para-toluene sulfonic acid in an amount of 0.5-3 wt % based on the weight of the alumina, wherein the surface-compatibilized alumina is present in the polyester container as agglomerates having an average volume-weighted Feret's diameter of between 4 and 10 microns wherein agglomerates having an average Feret's diameter of greater than 10 μm are eliminated; andwherein the polyester container has a total alumina loading of between about 5 and 1,500 ppm. 11. A polyester container according to claim 10, wherein the polyester container has a total alumina loading of between about 50 and 500 ppm. 12. A polyester container according to claim 10, wherein the surface-compatibilized alumina comprises alumina treated with an organosilane coupling agent, wherein the surface-compatibilized alumina comprises agglomerates having an average Feret's diameter of between about 5 and 10 microns. 13. A polyester container according to claim 10, wherein the polyester container is a polyester bottle having sidewall haze of less than 5 percent. 14. A polyester container according to claim 10, wherein: the polyester container possesses a reduced coefficient of friction as compared with an otherwise identical container without alumina; andthe polyester container possesses reduced sidewall haze as compared with an otherwise identical container that includes alumina without surface modification.

이 특허에 인용된 특허 (25)

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Nichols Carl S. ; Moore Tony Clifford ; Edwards Walter Lee, Method of post-polymerization stabilization of high activity catalysts in continuous polyethylene terephthalate product.
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Collins Warde T. (Midland MI) Fey Mary D. (Midland MI), Method of preparing an improved organic resin composition and an improved organic resin thereby.
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Robert Joseph Schiavone, Method of preparing modified polyester bottle resins.
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Schiavone Robert Joseph, Method of preparing modified polyester bottle resins.
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Rule, Mark, Method to decrease the aldehyde content of polyesters.
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Edwards, Walter Lee; Schiavone, Robert Joseph; Nichols, Carl Steven; Moore, Tony Clifford, Methods for making polyester bottle resins having reduced frictional properties.
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Nichols, Carl Steven; Moore, Tony Clifford, Methods for the late introduction of additives into polyethylene terephthalate.
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Nichols, Carl Steven; Moore, Tony Clifford, Methods of post-polymerization injection in continuous polyethylene terephthalate production.
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Walter Lee Edwards ; Robert Joseph Schiavone ; Carl Steven Nichols ; Tony Clifford Moore, Polyester bottle resins having reduced frictional properties and methods for making the same.
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Lee Kwang-Hyung,KRX ; Lee Gwan-Hyung,KRX ; Lee Young-Jin,KRX, Polyester film comprising alumina and silane coupling agent.
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Moore,Tony Clifford; Thompson,David Eugene; Griffith,Sharon Sue; Nichols,Carl S.; Humelsine,Billy Mack; Schiavone,Robert Joseph, Polyester preforms useful for enhanced heat-set bottles.
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Edwards, Walter Lee; Schiavone, Robert Joseph, Polymer resins having reduced frictional properties.
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Stibal Werner (Trimmis DEX) Boni Daniel (Domat/Ems DEX) Luckert Hans (Chur DEX), Process and apparatus for the direct and continuous modification of polymer melts.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Alumina-enhanced polyester resins and methods for making the same 원문보기

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Alumina-enhanced polyester resins and methods for making the same 원문보기

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