Method for providing opaque,microcellular,film coatings on substrates and the resultant product
    5.
    发明授权
    Method for providing opaque,microcellular,film coatings on substrates and the resultant product 失效
    提供基底,微孔,薄膜和基材的薄膜涂层的方法

    公开(公告)号:US3669728A

    公开(公告)日:1972-06-13

    申请号:US3669728D

    申请日:1970-06-22

    Inventor: SEINER JEROME A

    Abstract: THE DISCLOSED INVENTION RELATES TO FILMS FROM A NOVEL LATEX MIXTURE WHICH ARE NON-POROUS, MICROCELLULAR AND OPAQUE IN THE ABSENCE OF AN OPACIFYING AGENT. THE PREPARATION OF THE FILMS OF THE DISCLOSED INVENTION COMPRISES PROVIDING CONTROL TECHNIQUES FOR ENTRAPPING A SUFFICIENT AMOUNT OF A LIQUID NON-SOLVENT FOR THE POLYMER IN THE POLYMER MATRIX OF A LATEX AFTER THE CONTINOUS PHASE REMOVAL, SO THAT UPON EVAPORATION OF THE NONSOLVENT FROM A COALESCED AND TACK-FREE POLYMER MATRIX, A RESULTING OPAQUE

    AND CONTINUOUS, NON-POROUS FILM IS PRODUCED WHICH WILL HAVE MINUTE, DISCRETE AND SUBSTANTIALLYCLOSED VOIDS AND WHICH IS OPAQUE IN THE ABSENCE OF AN OPACIFYING AGENT SUCH AS PIGMENT. THE DISCLOSED INVENTION ALSO RELATED TO OPAQUE FILMS WITH ENHANCED OPTICAL PROPERTIES PRODUCED BY THE INCLUSION OF PIGMENTS, FLORESCENT MATERIALS AND OPTICAL BRIGHTENERS IN THE OPAQUE FILMS IN SUCH A MANNER AS TO MAXIMIZE THEIR EFFECTIVENESS THEREIN.

    High-Strength Collagen Sponge
    6.
    发明公开

    公开(公告)号:US20230414830A1

    公开(公告)日:2023-12-28

    申请号:US18083598

    申请日:2022-12-19

    Abstract: To provide a collagen sponge excellent in mechanical strength and a production method for the collagen sponge. A collagen sponge including a porous construct having a pore structure, the collagen sponge having a tensile strength of 1 N or more and 5 N or less in every direction including a length direction and a width direction. The collagen sponge may be produced by a production method including the following steps: (1) a step of subjecting a collagen solution obtained by mixing collagen and a solvent to stirring and deaeration treatment; (2) a step of subjecting the collagen solution to freeze-dry treatment; and (3) a step of subjecting a dried collagen product after the freeze-dry treatment to insoluble treatment.

Patent Agency Ranking