Polyisoprene condoms
    1.
    发明授权
    Polyisoprene condoms 有权
    聚异戊二烯避孕套

    公开(公告)号:US09000090B2

    公开(公告)日:2015-04-07

    申请号:US12294520

    申请日:2007-03-12

    Abstract: The present invention relates to processes for making synthetic polyisoprene latex and synthetic polyisoprene condoms. A process for making a compounded synthetic polyisoprene latex suitable for making a latex film comprises (a) compounding a synthetic polyisoprene latex with suitable compounding ingredients, (b) maturing the latex and optionally (c) storing the latex; characterized in that steps (a), (b) and (c) if included are carried out at a low temperature so as to minimize prevulcanization of the latex. Condoms can be made from latexes produced according to the process of the invention.

    Abstract translation: 本发明涉及制备合成聚异戊二烯胶乳和合成聚异戊二烯避孕套的方法。 制备适用于制备胶乳膜的复合合成聚异戊二烯胶乳的方法包括(a)将合成的聚异戊二烯胶乳与合适的配混成分混合,(b)熟化胶乳和任选地(c)保存胶乳; 其特征在于如果包括的步骤(a),(b)和(c)在低温下进行,以使乳胶的预硫化最小化。 安全套可以由根据本发明的方法生产的胶乳制成。

    Thin walled elastic polyurethane articles
    2.
    发明授权
    Thin walled elastic polyurethane articles 有权
    薄壁弹性聚氨酯制品

    公开(公告)号:US06389602B1

    公开(公告)日:2002-05-21

    申请号:US09265573

    申请日:1999-03-10

    Applicant: Eman Alsaffar

    Inventor: Eman Alsaffar

    Abstract: Soft, thin-walled elastic articles such as condoms and gloves are made of films of a linear polyurethane which has been so made as to have physical properties close to those of a similar film of natural rubber. The polyurethane is made from poly(propylene glycol) polyols with no more than 0.01 milliequivalents unsaturation per gram, and has a molecular weight Mn of 90 to 150 kg/mol, a ratio Mw:Mn of 1.2 to 2.2, and a ratio of hard:soft segments of 20:80 to 40:60. The film has an S100 of less than 2.0 MPa, an elongation at break of at least 800%, and a tensile strength of above 15 MPa.

    Abstract translation: 柔软的薄壁弹性制品如避孕套和手套由线性聚氨酯的膜制成,其被制成具有接近类似天然橡胶膜的物理性能。 聚氨酯由聚丙二醇多元醇制成,每克不超过0.01毫当量不饱和度,分子量Mn为90〜150kg / mol,Mw:Mn为1.2〜2.2,硬度比 :20:80至40:60的软段。 膜的S100小于2.0MPa,断裂伸长率为800%以上,拉伸强度为15MPa以上。

    POLYISOPRENE CONDOMS
    3.
    发明申请
    POLYISOPRENE CONDOMS 有权
    聚异戊二烯体系

    公开(公告)号:US20100267917A1

    公开(公告)日:2010-10-21

    申请号:US12294520

    申请日:2007-03-12

    Abstract: The present invention relates to processes for making synthetic polyisoprene latex and synthetic polyisoprene condoms. A process for making a compounded synthetic polyisoprene latex suitable for making a latex film comprises (a) compounding a synthetic polyisoprene latex with suitable compounding ingredients, (b) maturing the latex and optionally (c) storing the latex; characterised in that steps (a), (b) and (c) if included are carried out at a low temperature so as to minimise prevulcanisation of the latex. Condoms can be made from latexes produced according to the process of the invention.

    Abstract translation: 本发明涉及制备合成聚异戊二烯胶乳和合成聚异戊二烯避孕套的方法。 制备适用于制备胶乳膜的复合合成聚异戊二烯胶乳的方法包括(a)将合成的聚异戊二烯胶乳与合适的配混成分混合,(b)熟化胶乳和任选地(c)保存胶乳; 其特征在于如果包括的步骤(a),(b)和(c)在低温下进行,以使乳胶的预硫化最小化。 安全套可以由根据本发明的方法生产的胶乳制成。

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