[특허]Polymer compositions having improved barrier properties

[미국특허] Polymer compositions having improved barrier properties 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08K-005/01 C08L-023/06 A61F-013/514 C08J-005/18 C08L-023/08 C08L-023/04
출원번호	US-0753132 (2013-01-29)
등록번호	US-8957148 (2015-02-17)
발명자 / 주소	Addcox, Jim H. St. Jean, Guylaine
출원인 / 주소	Chevron Phillips Chemical Company LP
대리인 / 주소	Conley Rose, P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 20

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A composition comprising a polymer and a wax wherein the polymer has a melt index of from about 0.5 g/10 min to about 4 g/10 min, a density of equal to or greater than about 0.945 g/cc which when formed into a film displays a moisture vapor transmission rate of less than about 0.55 g-mil/100 in2 in

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1. A composition comprising a polymer and a wax, wherein the wax comprises olefin waxes comprising greater than 50 weight percent of olefins having the same number of carbon atoms, alpha olefin waxes, oxidized olefin waxes, Fischer-Tropsch waxes, paraffins, montan waxes, or combinations thereof; wherein the polymer has a melt index of from about 0.5 g/10 min to about 4 g/10 min, a density of equal to or greater than about 0.945 g/cc, and a moisture vapor transmission rate of less than about 0.55 g-mil/100 in2 in 24 hours as determined in accordance with ASTM F 1249 for a monolayer film at a thickness of from about 1.0 mils to about 1.6 mils. 2. The composition of claim 1 wherein the olefin wax comprises equal to or greater than 36 mol. % olefins. 3. The composition of claim 1 wherein the olefin wax comprises less than about 65 mol. % paraffin. 4. The composition of claim 1 wherein the olefin wax has an average molecular weight of at least 210 g/mol. 5. The composition of claim 1 wherein the wax comprises one or more of the following: a) greater than 90 wt % olefins having from 20 to 24 carbon atoms and greater than 75 mol. % alpha olefins having from 20 to 24 carbon atoms;b) greater than 70 wt % olefins having from 24 to 28 carbon atoms and greater than 45 mol. % alpha olefins having from 24 to 28 carbon atoms;c) greater than 90 wt % olefins having from 26 to 28 carbon atoms and greater than 75 mol. % alpha olefins having from 26 to 28 carbon atoms;d) greater than 80 wt % olefins having at least 30 carbon atoms and greater than 45 mol. % alpha olefins having at least 30 carbon atoms; ore) greater than 85 wt % olefins having at least 30 carbon atoms and greater than 75 mol. % alpha olefins having at least 30 carbon atoms. 6. The composition of claim 1 wherein the oxidized olefin wax has an acid number greater than 1 mg KOH per g oxidized olefin wax and a kinematic viscosity at 100° C. less than 70 cSt. 7. The composition of claim 1 wherein the oxidized olefin wax has a needle penetration value at 25° C. at least 5 percent less than a needle penetration value at 25° C. of the olefin wax prior to oxidation and a kinematic viscosity at 100° C. of up to about 500% greater than the kinematic viscosity of the olefin wax prior to oxidation. 8. The composition of claim 1 wherein the oxidized olefin wax has a drop melt point greater than the drop melt point of the olefin wax prior to oxidation. 9. The composition of claim 1 wherein the polymer is present in an amount of from about 93 wt. % to about 99.5 wt. % and the wax is present in an amount of from about 0.5 wt. % to about 7 wt. %. 10. The composition of claim 1 wherein the polymer has a weight average molecular weight of from about 80 kg/mol to about 200 kg/mol. 11. The composition of claim 1 wherein the polymer has a molecular weight distribution of from about 2 to about 10. 12. The composition of claim 1 wherein the polymer when formed into a film has a haze of less than about 40%. 13. The composition of claim 1 wherein the polymer comprises polyethylene. 14. A monolayer film formed from the composition of claim 1. 15. A monolayer film formed from the composition of claim 13. 16. The film of claim 14 having a moisture vapor transmission rate of from about 0.25 g-mil/100 in2 in 24 hours as determined in accordance with ASTM F 1249 to about 0.5 g-mil/100 in2 in 24 hours as determined in accordance with ASTM F 1249. 17. A food packaging container comprising the film of claim 14. 18. The composition of claim 1 wherein the olefin wax has an acid value ranging from 7 mg KOH/g to 14 mg KOH/g. 19. The composition of claim 1 wherein the olefin wax comprises greater than 60 mole percent of olefins having the same number of carbon atoms.

이 특허에 인용된 특허 (20) 인용/피인용 타임라인 분석

Hottovy John D. (Bartlesville OK) Lawrence Frederick C. (Bartlesville OK) Lowe Barry W. (Bartlesville OK) Fangmeier James S. (Bartlesville OK), Apparatus and method for producing ethylene polymer.
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Borke, Jeffrey S.; McFaddin, Douglas C.; Imfeld, Stephen M., Barrier properties of substantially linear HDPE film with nucleating agents.
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Takeshita Kenneth (Alameda CA) Matray Attila (Loveland OH), Coextruded polyolefin films having improved barrier properties.
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Patel, Niraj C.; Balfour, Kim G., Conductive polymer compositions and methods of manufacture thereof.
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Kendrick, James Austin; Towles, Thomas W.; Roger, Scott Thomas, Continuous slurry polymerization process and appparatus.
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Sherk Fred T. (Bartlesville OK) Inkrott Janet L. (Bartlesville OK), Diluent and inert gas recovery from a polymerization process.
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Hottovy John D. ; Burns David H. ; Kufeld Scott E. ; Roetman Timothy ; Vaidyanathan Ragavan, Diluent slip stream to give catalyst wetting agent.
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Su Tien-Kuei ; Chu Shaw-Chang ; Keung Jay K.,SGX, High barrier multi-layer film.
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Hottovy John D. ; Hensley Harvey D. ; Przelomski David J. ; Cymbaluk Teddy H. ; Franklin ; III Robert K. ; Perez Ethelwoldo P., High solids slurry polymerization.
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Kim,Hyung Suk; Jeon,In Chan; Hur,Sung Ryong; Chol,Chun Won; Kang,Byoung Ki, Hose clamping assembly.
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Burns David H. (Houston TX) Martin William E. (Houston TX), Method for controlling removal of polymerization reaction effluent.
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Jenkins ; III John M. (So. Charleston WV) Jones Russell L. (Chapel Hill NC) Jones Thomas M. (So. Charleston WV) Beret Samil (Danville CA), Method for fluidized bed polymerization.
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Vignola, Eric, Method of improving the bubble stability of a blown film of a thermoplastic resin.
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Yang, Qing; Jensen, Michael D.; Martin, Joel L.; Thorn, Matthew G.; McDaniel, Max P.; Yu, Youlu; Rohlfing, David C., Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branching.
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Yeh Gene H. (San Ramon CA) Matray Attila (Danville CA) Ziegenhagen Allyn J. (Berkeley CA), Polyolefin films having improved barrier properties.
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Hanson Donald O. (Bartlesville OK), Process and apparatus for separating diluents from solid polymers utilizing a two-stage flash and a cyclone separator.
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DeChellis Marc L. (Houston TX) Griffin John R. (Baytown TX), Process for polymerizing monomers in fluidized beds.
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Griffin John R. (Baytown TX) DeChellis Marc L. (Houston TX), Process for polymerizing monomers in fluidized beds.
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Thorn,Matthew G.; Martin,Joel L.; Yang,Qing; Masino,Albert P., Synthesis of-metallocenes and their parent ligands in high yield.
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Heffelfinger Michael T., WVTR film using wax in combination with a cavitated tie layer.
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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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[미국특허] Polymer compositions having improved barrier properties 원문보기

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