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특허 상세정보

Polyurethane foams manufactured with mixed gas/liquid blowing agents

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08K-005/00   
미국특허분류(USC) 521/131 ; 252/67 ; 252/69 ; 252/18224
출원번호 US-0355539 (1989-05-22)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 15  인용 특허 : 2
초록

Disclosed are mixed halocarbon blowing agents comprising (1) halocarbons boiling below about 10°C., (2) halocarbons boiling between 20°C. and 35°C., and (3) inert organic liquids having a boiling point from about 35°C. to about 125°C. Also disclossed are blends of the above mixed blowing agents with active hydrogen containing compounds, particularly polyols and the rigid closed cell foams prepared from such blends. Up to 60 percent reduction in hard halocarbons is realized with the mixed blowing agents.

대표
청구항

A mixed blowing agent comprising: (1) from about 2 to about 25 percent by weight of at least one halocarbon blowing agent having a boiling point below about 10°C.; (2) from about 30 to about 90 percent by weight of at least one halocarbon blowing agent having a boiling point of from about 20°C. to about 35°C.; and (3) from about 8 to about 45 percent by weight of an inert organic liquid having a boiling point from about 35°C. to about 125°C., and provided at least one of said components (1), (2), or (3) contains at least one hydrogen atom.

이 특허를 인용한 특허 피인용횟수: 15

  1. Swan Ellen L. (Ransomville NY) Basu Rajat S. (Williamsville NY) Hollister Richard M. (Buffalo NY). Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichloromethane and optionally alkanol. USP1991085039442.
  2. Flynn Richard M. ; Vitcak Daniel R.. Azeotropic compositions containing perfluorinated cycloaminoether. USP1998045744436.
  3. Nimitz Jonathan S. (Albuquerque NM) Lankford Lance H. (Newcastle CA). Fluoroiodocarbon blends as CFC and halon replacements. USP1997035611210.
  4. Nimitz Jonathan Shelley (Albuquerque NM) Lankford Lance Harrell (Newcastle CA). Fluoroiodocarbon blends as CFC and halon replacements. USP1997115685915.
  5. Nimitz Jonathan Shelley ; Lankford Lance Harrell. Fluoroiodocarbon blends as CFC and halon replacements. USP1998025716549.
  6. Nimitz,Jonathan Shelley; Lankford,Lance Harrell. Fluoroiodocarbon blends as CFC and halon replacements. USP2006087083742.
  7. Kazutaka Uekado JP; Yoshiyuki Tsuda JP; Hideo Nakamoto JP; Tomohisa Tenra JP. Foamed thermal insulating material and insulated structure. USP2002036355700.
  8. Blanpied, Robert H.; Thornsberry, James Darryl; Silverberg, Steven E.; Lattner, James R.; McMullen, C. Harry; Sanchez, Leonel E.; Wu, Tronze-I Dennis. Method of producing rigid foams and products produced therefrom. USP2003016506812.
  9. Nimitz Jonathan Shelley (Albuquerque NM) Lankford Lance Harrell (Newcastle CA). Methods and compositions for sterilization of articles. USP1997105674451.
  10. Hammel Howard Sims ; York Robert Oliver. Polymer foams containing blocking agents. USP1999065912279.
  11. Molina Nelson F. ; Moore Stanley E.. Polyols useful for preparing water blown rigid polyurethane foam. USP2001086281393.
  12. Stevenson Richard (Mesa AZ). Process for forming polyisocyantate-based foam and product formed thereby. USP1997025602189.
  13. Doerge Herman P.. Rigid foams with improved insulation properties and a process for the production of such foams. USP1999035889066.
  14. Thornsberry, James D.; Islas, Gregory; Blanpied, Robert H.. Thermosetting plastic foams and methods of production thereof using adhesion additives. USP2005036866923.
  15. Tapscott Robert E.. Tropodegradable bromine-containing halocarbon additives to decrease flammability of refrigerants, foam blowing agents, s. USP1999055900185.