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특허 상세정보

Methods of making foamed materials of blended thermoplastic polymers using carbon dioxide

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08J-009/00   
미국특허분류(USC) 521/079; 521/134; 521/135; 521/136; 521/137; 521/138; 521/139; 521/140; 264/050; 264/051
출원번호 US-0516482 (2000-03-01)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Myers Bigel Sibley & Sajovet, PA
인용정보 피인용 횟수 : 11  인용 특허 : 53
초록

A method of producing a foamed material comprises contacting a mixture comprising a first thermoplastic polymer and a second thermoplastic polymer with a blowing agent, wherein the first thermoplastic polymer has a higher percent crystallinity that the second thermoplastic polymer; and subjecting the mixture to conditions sufficient to create a thermodynamic instability in the blend foam the mixture, wherein the mixture comprising the first and second thermoplastic polymers has a percent crystallinity lower than the first thermoplastic polymer.

대표
청구항

1. A method of producing a foamed material, said method comprising:contacting a mixture comprising a first thermoplastic polymer and a second thermoplastic polymer with a blowing agent comprising a surfactant, wherein the surfactant is a copolymer selected from the group consisting of a graft copolymer, a block copolymer, and a random copolymer, wherein the first thermoplastic polymer has a higher percent crystallinity that the second thermoplastic polymer; andsubjecting the mixture to conditions sufficient to create a thermodynamic instability in the mi...

이 특허에 인용된 특허 (53)

  1. Sulzbach Hans-Michael,DEX ; Althausen Ferdinand,DEX ; Steilen Herbert,DEX ; Raffel Reiner,DEX ; Eiben Robert,DEX ; Ebeling Wilfried,DEX. Apparatus for foam manufacturing using carbon dioxide dissolved under pressure. USP1998115833930.
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  2. Wach, Michael L.. Elevating numerical aperture of optical systems. USP2015028948560.
  3. Jeong, Changhoon; Jeong, Daejin; Kim, Gangyoun. Foam molding method, foaming agent and foamed plastic. USP2015079080023.
  4. Henry, James J.; Zerafati, Saeid; Stabler, Sean M.. Foamed polyvinylidene fluoride tubular structures. USP2012108277913.
  5. Yusa, Atsushi; Hori, Teruo. Injection molding method with surface modification. USP2010077763195.
  6. Yusa,Atsushi; Hori,Teruo. Injection molding method with surface modification. USP2007057211207.
  7. Pope, Gary A.; Baran, Jr., Jimmie R.; Skildum, John D.; Bang, Vishal; Shama, Mukul M.. Method for treating a formation with a solvent. USP2016059353309.
  8. Sandler, Jan Kurt Walter; Bellin, Ingo; Djuric, Dejan; Kolter, Karl; Ruckdäschel, Holger. Nanoporous foamed active compound-containing preparations based on pharmaceutically acceptable thermoplastically workable polymers. USP2014018636929.
  9. Katagiri, Souichi; Sohda, Yasunari; Ogino, Masahiko. Pattern forming method and pattern forming system. USP2010067745237.
  10. Pope, Gary A.; Sharma, Mukul M.; Kumar, Viren; Baran, Jimmie R.. Use of fluorocarbon surfactants to improve the productivity of gas and gas condensate wells. USP2010087772162.
  11. Pope, Gary A.; Sharma, Mukul M.; Kumar, Viren; Baran, Jr., Jimmie R.. Use of fluorocarbon surfactants to improve the productivity of gas and gas condensate wells. USP2010127855169.