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Method for the preparation of rigid foams having urethane and/or isocyanurate groups and being extensively open celled

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08L-075/04    C08K-005/01    C08J-009/00   
미국특허분류(USC) 521/132 ; 521/155 ; 521/161 ; 521/137
출원번호 US-0489175 (1995-06-08)
우선권정보 DE-4303809 (1993-02-10)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 13  인용 특허 : 0
초록
▼

A method is described for the preparation of rigid foams, having urethane and/or isocyanurate groups and being extensively open celled, by reacting polyisocyanates with compounds having at least two groups capable of reacting with isocyanates and the equivalent weight per reactive group of which is about 9 to 800, in the presence of catalysts, surface active substances, as well as, optionally, physical blowing agents, flame retardants and other known auxiliary materials and finishing agents, wherein the reaction is carried out in the presence of liquid, ...

대표
청구항
▼

A method for the preparation of extensively open celled rigid foams comprising: reacting a polyisocyanate with compounds having on average three hydroxyl groups per molecule and further having an OH-number between about 100 to 800 in presence of a catalyst, surface active substance, as well as, optionally, one or more members of a group consisting of a physical blowing agent, flame retardant, other auxiliary materials and finishing agents; and carrying the reaction in the presence of polybutadiene or polyoctenylene or both as an unsaturated hydrocarbon h...

이 특허를 인용한 특허 피인용횟수: 13

  1. Hager, Stanley L.; Adhikari, Utpal C.. Agents for reducing the force-to-crush (FTC) of high support flexible foams. USP2005026855742.
  2. Carrejo, Nicholas; Johnson, Michael H.; Guest, Randall V.. Anisotropic filtration media. USP2013088517184.
  3. Frey John Herbert ; Arnold ; Jr. Allen Robert ; Boyer Timothy Charles ; Lassila Kevin Rodney. Aqueous wax dispersions as cell openers in making polyurethane flexible foams. USP2000066080800.
  4. Torsten Heinemann DE; Karl-Werner Dietrich DE; Walter Klan DE. Compressed, rigid polyurethane foams. USP2002106472449.
  5. Heinemann, Torsten; Klän, Walter. Fine cell, water-blown rigid polyurethane foams. USP2010037671104.
  6. Carrejo, Nicholas; Johnson, Michael H.; Guest, Randall V.. Method of making an anisotropic filtration media. USP2016019238316.
  7. Pauls Mathias,CHX ; Schumacher Rene,CHX. Prepolymer composition for insulating foams. USP2000046054499.
  8. Pauls, Mathias; Schumacher, Rene. Prepolymer compostion for insulating foams. USP2004066750265.
  9. Burdeniuc, Juan Jesus; Tobias, James Douglas; Keller, Renee Jo. Reduced emissions low density spray polyurethane foam. USP20181010106638.
  10. Luna, Jose. Sugar-based polyurethanes, methods for their preparation, and methods of use thereof. USP20180810047187.
  11. Mooney, Joseph; Rathke, Thomas; Luna, Jose; Svenson, Douglas. Sugar-based polyurethanes, methods for their preparation, and methods of use thereof. USP2017069676896.
  12. Mooney, Joseph; Rathke, Thomas; Valentine, Charles; Svenson, Douglas. Sugar-based polyurethanes, methods for their preparation, and methods of use thereof. USP2017089725555.
  13. Mortarotti, Julio. Units insulated with foams and having flexible outer skins. USP2014078763847.

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