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특허 상세정보

Polymer foams containing blocking agents

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08G-018/14   
미국특허분류(USC) 521/146 ; 521/098 ; 521/131 ; 521/142 ; 521/155 ; 521/079
출원번호 US-0898979 (1997-07-23)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Shipley
인용정보 피인용 횟수 : 21  인용 특허 : 21
초록

An improved closed cell polymer foam and foaming agent involving the use of a hydrogen-containing halocarbon blowing agent (e.g., HCFC-22) in combination with an effective amount of a hydrogen bond forming blocking agent (e.g., organic ether, ester or ketone). The presence of the blocking agent is shown to significantly reduce the escape of blowing agent from and entry of air into the foam resulting in low thermal conductivity over a longer period of time and improved thermal insulation value. A closed cell thermoplastic foam such as polyethylene, polypr...

대표
청구항

[ What is claimed is:] [1.] A method for preparing a non-flammable insulating thermoplastic foam body comprising the steps ofa) providing a first molten composition of thermoplastic resin,b) introducing an effective quantity of a blowing agent composition, said blowing agent composition comprising at least 70 weight percent 1,1,2,2 tetrafluoroethane and no components having halogen substituents other than fluorine into said first molten compositionc) dispersing said blowing agent composition throughout said first molten composition to form a second molte...

이 특허에 인용된 특허 (21)

  1. Bartlett Philip L. (Wilmington DE) Bivens Donald B. (Kennett Square PA) Lunger Brooks S. (Coatesville PA) Yokozeki Akimichi (Greenville DE). Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane. USP1993015182040.
  2. Demmin Timothy R. (Grand Island NY) Parker Robert C. (Hamburg NY) Eibeck Richard E. (Orchard Park NY) Knopeck Gary M. (Lakeview NY) Ruszaj Donna M. (E. Amherst NY). Catalysts which stabilize hydrohalocarbon blowing agent in polyisocyanurate foam formulations during polymerization. USP1996105561171.
  3. Shiflett Mark B. (Newark DE). Compositions of difluoromethane and tetrafluoroethane. USP1994035290466.
  4. Shiflett Mark B. (Newark DE). Constant boiling compositions of pentafluoroethane, difluoromethane, and tetrafluoroethane. USP1993025185094.
  5. Hammel Howard S. (Bear DE) York Robert O. (Wilmington DE). Degradable foam materials. USP1992075134171.
  6. Green Todd J. (Canton MI) Tucker John R. (Wyandotte MI). Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture. USP1995075430071.
  7. Green Todd J. (Canton MI) Tucker John R. (Wyandotte MI). Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture. USP1995095451614.
  8. Green Todd J. (Canton MI) Tucker John R. (Wyandotte MI). Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture. USP1995095447964.
  9. Green Todd J. (Canton MI) Tucker John R. (Wyandotte MI). Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture. USP1995105455283.
  10. Green Todd J. (Canton MI) Tucker John R. (Wyandotte MI). Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture. USP1995115470891.
  11. Green Todd J. (Canton MI) Tucker John R. (Wyandotte MI). Dimensionally stable closed cell rigid polyisocyanate based foam prepared from a froth foaming mixture. USP1996055514724.
  12. Smits Guido F. (Wijnegem BEX) Thoen Johan A. (Terneuzen NLX). Foaming system for closed-cell rigid polymer foam. USP1991034997706.
  13. Grnbauer Henri J. M. (Oostburg NLX) Smits Guido F. (Wijengem BEX). Foaming system for rigid urethane and isocyanurate foams. USP1990114972003.
  14. Bartlett Philip L. (Wilmington DE) Creazzo Joseph A. (Wilmington DE) Hammel Howard S. (Bear DE). Polymer foams containing blocking agents. USP1996055516811.
  15. Bartlett Philip L. (Wilmington DE) Creazzo Joseph A. (Wilmington DE) Hammel Howard S. (Bear DE). Polymer foams containing gas barrier resins. USP1996075532284.
  16. Smits Guido F. (Wijnegem BEX) Thoen Johan A. (Dommelstraat NLX) Davidson Robert M. (Midland MI) Booth ; deceased Llewellyn D. (late of Lake Jackson TX by Petricha K. Booth ; administratrix). Polyurethane foam prepared with reduced levels of hard halocarbon blowing agents. USP1991035001164.
  17. Lin Chung Y. (Orange CT). Polyurethane foams manufactured with mixed gas/liquid blowing agents. USP1991024996242.
  18. Lin Chung-Yuan (Orange CT). Polyurethane foams manufactured with mixed gas/liquid blowing agents. USP1992055114986.
  19. Behme Klaus-Jrgen (Eppstein/Taunus DEX) Deger Hans-Matthias (Hofheim am Taunus DEX) Schtz Claudia (Flrsheim am Main DEX). Process for the manufacture of foams with the aid of blowing agents containing fluoroalkanes and fluorinated ethers, and. USP1992125169873.
  20. Doerge Herman P. (Pittsburgh PA). Rigid foams with improved insulation and physical properties. USP1995105461084.
  21. Doerge Herman P. (Pittsburgh PA). Rigid foams with improved insulation and physical properties. USP1995065426127.

이 특허를 인용한 특허 피인용횟수: 21

  1. Duffy, John D.; Griffin, Warren H.. Blowing agent composition and polymeric foam containing a normally-liquid hydroflurocarbon and carbon dioxide. USP2003076599946.
  2. Singh, Rajiv R.; Shankland, Ian. Blowing agent compositions comprising fluorinated olefins and carbon dioxide. USP2010027655610.
  3. John D. Duffy FR; Warren H. Griffin. Blowing agent compositions containing hydrofluorocarbons and a low-boiling alcohol and/or low-boiling carbonyl compound. USP2002116476080.
  4. Patel, Bharat; Delaviz, Yadollah; Breindel, Raymond M.; Weekley, Mitchell Z.; Loh, Roland R.; Choudhary, Manoj K.. Cell size enlargers for polystyrene foams. USP2017099752004.
  5. Singh, Rajiv R.; Pham, Hang T.; Shankland, Ian. Compositions containing tetrafluoropropene and carbon dioxide. USP2018029884946.
  6. Handa, Y. Paul. Expanded and extruded biodegradable and reduced emission foams made with methyl formate-based blowing agents. USP2010127846987.
  7. Handa, Y. Paul; Francis, Gary A.. Expanded and extruded polyolefin foams made with methyl formate-based blowing agents. USP2011098026291.
  8. Kl?tzer, Rebecca. Expanded porous thermoplastic polymer membranes and method for the production thereof. USP2005066902693.
  9. Handa,Yash Paul; Brackman,Joseph A.; Castner,Glenn C.; Zafar,Mohammad. Insulating thermoplastic foams made with methyl formate-based blowing agents. USP2007127312253.
  10. Rynd, Joseph P.; Loh, Roland R.; Briendel, Raymond M.. Method of forming thermoplastic foams using nano-particles to control cell morphology. USP2013108568632.
  11. Cheung, Yunwa Wilson; Dobreski, David V.; Turner, Richard; Wheeler, Mark; Handa, Y. Paul. Polymer blends of biodegradable or bio-based and synthetic polymers and foams thereof. USP2011077977397.
  12. Cheung, Yunwa Wilson; Dobreski, David V.; Turner, Richard; Wheeler, Mark; Handa, Y. Paul. Polymer blends of biodegradable or bio-based and synthetic polymers and foams thereof. USP2011017872056.
  13. Loh, Roland R.; Polasky, Mark E.; Delaviz, Yadollah; Lee, L. James; Cao, Xia; Shen, Jiong; Patel, Bharat. Polystyrene foam containing a modifier-free nanoclay and having improved fire protection performance. USP2015119187608.
  14. Handa, Y. Paul; Francis, Gary A.; Castner, Glenn C.; Zafar, Mohammad. Reduced-VOC and non-VOC blowing agents for making expanded and extruded thermoplastic foams. USP2014048703835.
  15. Handa, Y. Paul; Francis, Gary A.; Castner, Glenn C.; Zafar, Mohammad. Reduced-VOC and non-VOC blowing agents for making expanded and extruded thermoplastic foams. USP2013128598244.
  16. Handa, Y. Paul; Francis, Gary A.; Castner, Glenn C.; Zafar, Mohammad. Reduced-VOC and non-VOC blowing agents for making expanded and extruded thermoplastic foams. USP2012118309619.
  17. Handa, Y. Paul; Francis, Gary A.; Castner, Glenn C.; Zafar, Mohammad. Reduced-VOC and non-VOC blowing agents for making expanded and extruded thermoplastic foams. USP2016099453090.
  18. Hatfield,David B.. Reduction of permeation through a polymer. USP2007117297753.
  19. Breindel, Raymond; Loh, Roland; Rynd, Joseph P.; Delaviz, Yadolah; Polasky, Mark E.. Thermoplastic foams and method of forming them using nano-graphite. USP20190110184037.
  20. Breindel, Raymond; Loh, Roland; Rynd, Joseph P.; Delaviz, Yadollah; Polasky, Mark E.. Thermoplastic foams and method of forming them using nano-graphite. USP2016069359481.
  21. Handa,Yash Paul; Francis,Gary A.. Thermoplastic foams made with methyl formate-based blowing agents. USP2007127307105.