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특허 상세정보

Polymer recycling by selective dissolution

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08F-006/04    C08J-011/08   
미국특허분류(USC) 528/497 ; 528/491 ; 528/492 ; 528/493
출원번호 US-0890533 (1992-05-28)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 46  인용 특허 : 0
초록

A method for separating polymers from a physically commingled solid mixture containing a plurality of polymers comprises dissolving a first one of the polymers in a solvent at a first lower temperature to form a first preferably single phase solution and a remaining solid component. The solid component contains additional polymers which are not soluble to the solvent at the first temperature but which may be soluble at higher temperatures. The method includes subsequently heating the solvent to dissolve additional polymer from the solid component to form...

대표
청구항

A method for separating polymers from a physically commingled solid mixture containing at least three polymers, which includes at least two different polymers which are members of the PE family, by selective dissolution, comprising: dissolving at least one first polymer of the mixture in a selected solvent at a first temperature to form a first solution and a first remaining solid component which contains at least two polymers of the mixture which are insoluble in the selected solvent at the first temperature but soluble in the selected solvent at higher...

이 특허를 인용한 특허 피인용횟수: 46

  1. Loop, Thomas E.; Flynn, James D.; Allan, Graham; Van Swearingen, Steven C.; Gaw, Kevin O.. Biomass and waste plastics depolymerization machine and methods via supercritical water. USP2015038980143.
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  3. Fan, Liang-tseng; Shafie, Shahram Reza. Compositions and methods for recycling plastics comprising polymers via solvent treatment. USP2014118883867.
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  5. Dunn, Steven Bryan; Hatherill, Mark A.; Johnson, Kevin D.; Saxton, Matthew Joseph. Container for receiving multiple flexible bag assemblies. USP20181010086996.
  6. Dunn, Steven Bryan; Hatherill, Mark A.; Johnson, Kevin D.; Saxton, Matthew Joseph. Container for receiving multiple flexible bag assemblies. USP2018069994393.
  7. Lu, Na; Johnson, Ralph Robert. Hemp fiber reinforced composite with recycled high density polyethylene and production thereof. USP2015119187624.
  8. Karjala, Teresa P.; Tice, Colleen M.; Kardos, Lori L.; Ortega, Jose; Yau, Wallace W.; Wang, Jian. LDPE for use as a blend component in shrinkage film applications. USP2015069068032.
  9. Dunn, Steven B.; Hatherill, Mark A.; Johnson, Kevin D.. Method for disposing waste packages such as diapers. USP2017079714138.
  10. Clement, Katherine S.; Walker, Louis L.. Method for fractioning poly (ethylene oxide) formed using a metallic cyanide catalyst. USP2003046552163.
  11. Berkstresser ; IV Gordon A. ; Dunbar Richard A. ; McLellan George R. ; Plischke Le Moyne W. ; Yang Yiqi. Method for removing color from ionically dyeable polymeric materials. USP2000076083283.
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  15. Doreau, Nicolas; Prouvost, Benoit; Stenson, Paul. Polyester-carbamate polymer and coating compositions thereof. USP2015018927077.
  16. Doreau, Nicolas; Prouvost, Benoit; Stenson, Paul. Polyester-carbamate polymer and coating compositions thereof. USP2017089745416.
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  19. Stenson, Paul; Prouvost, Benoit; Niederst, Jeffrey; Wind, Donald; Evans, Richard H.; Skillman, Charles; Share, Paul E.; Robinson, James. Polymer having polycyclic groups and coating compositions thereof. USP2015028946316.
  20. Stenson, Paul; Prouvost, Benoit; Niederst, Jeffrey; Wind, Donald; Evans, Richard H.; Skillman, Charles; Share, Paul E.; Robinson, James. Polymer having polycyclic groups and coating compositions thereof. USP2015119187212.
  21. Stenson, Paul; Prouvost, Benoit; Niederst, Jeffrey; Wind, Donald; Evans, Richard H.; Skillman, Charles; Share, Paul E.; Robinson, James. Polymer having polycyclic groups and coating compositions thereof. USP2014048697210.
  22. Skillman, Charles; Share, Paul E.; Paulson, Greg; Evans, Richard H.; Prouvost, Benoit; Stenson, Paul. Polymer having unsaturated cycloaliphatic functionality and coating compositions therefrom. USP20190410253138.
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  24. Skillman, Charles; Share, Paul E.; Paulson, Greg; Evans, Richard H.; Prouvost, Benoit; Stenson, Paul. Polymer having unsaturated cycloaliphatic functionality and coating compositions therefrom. USP2013058449960.
  25. Skillman, Charles; Share, Paul E.; Paulson, Greg; Evans, Richard H.; Prouvost, Benoit; Stenson, Paul. Polymer having unsaturated cycloaliphatic functionality and coating compositions therefrom. USP2015129200176.
  26. Skillman, Charles; Share, Paul E.; Paulson, Greg; Evans, Richard H.; Prouvost, Benoit; Stenson, Paul. Polymer having unsaturated cycloaliphatic functionality and coating compositions therefrom. USP2014038663765.
  27. Skillman, Charles; Share, Paul E.; Paulson, Greg; Evans, Richard H.; Prouvost, Benoit; Stenson, Paul. Polymer having unsaturated cycloaliphatic functionality and coating compositions therefrom. USP2017059663613.
  28. Skillman, Charles; Niederst, Jeffrey; Schutte, Grant. Polymer particles and coating compositions formulated from the polymer particles. USP2018039920217.
  29. Dunn, Steven B.; Hatherill, Mark A.; Johnson, Kevin D.. Powder dispensing assembly for a waste container. USP2014028647587.
  30. Dunn, Steven B.; Hatherill, Mark A.; Johnson, Kevin D.. Powder dispensing assembly for a waste container. USP2014048690017.
  31. Stefandl Roland E.. Process for recycling and recovery of purified nylon polymer. USP2000106140463.
  32. Brownscombe Thomas F. (Houston TX) Fong Howard L. (Sugar Land TX) Diaz Zaida (Houston TX) Chuah Hoe H. (Houston TX) June Raymond L. (Houston TX) Rollick Kevin L. (Munroe Falls OH) Semple Thomas C. (F. Process for recycling mixed polymer containing polyethylene terephthalate. USP1996095554657.
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  37. Duffy, Sean P.; Blasland, Warren; Lehman, Rick. System for and method of mixed-color cullet characterization and certification, and providing contaminant-free, uniformly colored mixed-color cullet. USP2018039908807.
  38. Duffy, Sean; Blasland, Warren; Lehman, Rick. System for and method of mixed-color cullet characterization and certification, and providing contaminant-free, uniformly colored mixed-color cullet. USP2014018631668.
  39. Dunn, Steven B.; Hatherill, Mark A.; Johnson, Kevin D.. System for disposing waste packages such as diapers. USP2014018635838.
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  41. Dunn, Steven B.; Hatherill, Mark A.; Johnson, Kevin D.. System for disposing waste packages such as diapers. USP2014068739501.
  42. Bohlig, James W.; Duffy, Sean P.. Systems and methods for glass recycling at a beneficiator and/or a material recovery facility. USP2010077757863.
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