• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Use of self-expanding polymeric foams for the filling of persistent pleural cavities. The present invention relates to the use of a self-expanding polymeric foam for sealing and filling of pleural cavities. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2604361A1
    申请号:ES201531167
    申请日:2015-08-05
    公开日:2017-03-06
    发明作者:Carlos A. ROMBOLÁ；José Miguel MARTÍN MARTINEZ
    申请人:Universidad de Alicante；
    IPC主号:
    专利说明:

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    3.13.9 3.9.1 3.7.1 3.6.1 3.4.1 3.3.1 4.3 4.3.1 4.3.2 2.5 2.1 1.9 1.8 1.6 1.5 1.6 1.6 1.67 5.5 4.5 4 3 2.5 3 3 30.2 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3------- 0.2 1
    In order to determine the feasibility of using the different formulations in their potential use for filling pleural cavities, three properties have been measured:
    -The maximum temperature reached during foaming (Tmax).
    5 -The time necessary for the formation of the polymer (cream time).
    -The time needed to achieve maximum foaming (thread time).
    The experimental values obtained with the different formulations studied are included in Table 2. The maximum temperatures reached range between 120 and 180 ° C, the lowest temperature corresponding to the lowest NCO / OH ratio. Cream time 10 ranges from 20 to 55 seconds, being markedly decreased when surfactant is added in the foam formulation. Regarding the yarn time it ranges between 50 and 90 seconds, and, as with the cream time, it decreases markedly when surfactant is added in the formulation of the foams. The conclusion that is obtained is that the addition of surfactant is critical to achieve foaming so
    15 controlled and in a suitable time in the filling of pleural cavities (figure 1 and figure 2).
    image9


    Table 2. Properties of polyurethane foams
    Nomenclature T max. (ºC)Cream time (s)Thread Time (s)
    3.13.9 1705590
    3.9.1 1554060
    3.7.1 160fifty80
    3.6.1 150Four. Five90
    3.4.1 1604060
    3.3.1 120fifty90
    4.3 1803060
    4.3.1 1703060
    4.3.2 170twentyfifty
    Example 2. Two polyurethane foams based on toluene diisocyanate (TDI) and polyether polyol were prepared using surfactant. To obtain the foams, two 5 components were mixed:
    Component A: Polyether polyol mixture (Alcupol X-1950-molecular weight: 886 Da; hydroxyl number: 35; functionality: 3-International Synthesia, Barcelona) + water + catalyst (DBTDL-dibutyltin dilaurate - 95% purity - Sigma Aldrich, Madrid)
    + surfactant (BYK-348, polyether modified siloxane surfactant - BYK
    10 Chemie GmbH, Wesel, Germany). The mixtures were homogenized by mechanical stirring in a beaker for one minute.
    Component B: TDI diisocyanate (Desmodur T 65 N - 2,4- and 2,6-toluene diisocyanate content of 63:33 -Bayer Material Science, Leverkusen, Germany) with an NCO content of 48%. This isocyanate is liquid at room temperature so
    15 can be easily manipulated.
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    权利要求:
    Claims (1)
    [1]
    image 1
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    同族专利:
    公开号 | 公开日
    WO2017021575A1|2017-02-09|
    ES2604361B1|2018-02-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20140271531A1|2013-03-15|2014-09-18|Toby Freyman|In-Situ Forming Foam for Endoscopic Lung Volume Reduction|WO2021202109A1|2020-04-03|2021-10-07|Boral Ip HoldingsPty Limited|Composite materials and methods of preparation thereof|
    法律状态:
    2018-02-16| FG2A| Definitive protection|Ref document number: 2604361 Country of ref document: ES Kind code of ref document: B1 Effective date: 20180216 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201531167A|ES2604361B1|2015-08-05|2015-08-05|USE OF SELF-EXPANSIBLE POLYMERIC FOAMS FOR THE FILLING OF PERSISTENT PLEURAL CAVITIES|ES201531167A| ES2604361B1|2015-08-05|2015-08-05|USE OF SELF-EXPANSIBLE POLYMERIC FOAMS FOR THE FILLING OF PERSISTENT PLEURAL CAVITIES|
    PCT/ES2016/070571| WO2017021575A1|2015-08-05|2016-07-27|Use of self-expanding polymer foams for filling persistent pleural cavities|
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