PRODUCTION METHOD FOR PREPREG, PREPREG TAPE, AND FIBER REINFORCED COMPOSITE MATERIAL, AND PREPREG PRODUCTION DEVICE

    公开(公告)号:US20210291405A1

    公开(公告)日:2021-09-23

    申请号:US17266413

    申请日:2019-08-20

    Abstract: A method is described for producing a prepreg formed by applying a matrix resin to a reinforcing fiber sheet, wherein the method can effect continuous running without clogging due to generated fuzz even at a high running speed and effect efficient impregnation of the reinforcing fiber sheet with a matrix resin. A method of producing a prepreg includes allowing a reinforcing fiber sheet to pass substantially vertically downward through the inside of a coating section storing a matrix resin to obtain a matrix resin-impregnated reinforcing fiber sheet in which the matrix resin is applied to the reinforcing fiber sheet and at least heating the matrix resin-impregnated reinforcing fiber sheet, wherein the coating section includes a liquid pool and a narrowed section which are in communication with each other, wherein the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the reinforcing fiber sheet.

    Production method for prepreg, prepreg tape, and fiber reinforced composite material, and prepreg production device

    公开(公告)号:US11491685B2

    公开(公告)日:2022-11-08

    申请号:US17266413

    申请日:2019-08-20

    Abstract: A method is described for producing a prepreg formed by applying a matrix resin to a reinforcing fiber sheet, wherein the method can effect continuous running without clogging due to generated fuzz even at a high running speed and effect efficient impregnation of the reinforcing fiber sheet with a matrix resin. A method of producing a prepreg includes allowing a reinforcing fiber sheet to pass substantially vertically downward through the inside of a coating section storing a matrix resin to obtain a matrix resin-impregnated reinforcing fiber sheet in which the matrix resin is applied to the reinforcing fiber sheet and at least heating the matrix resin-impregnated reinforcing fiber sheet, wherein the coating section includes a liquid pool and a narrowed section which are in communication with each other, wherein the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the reinforcing fiber sheet.

    Method for manufacturing prepreg, coating device, and apparatus for manufacturing prepreg

    公开(公告)号:US11421091B2

    公开(公告)日:2022-08-23

    申请号:US17264886

    申请日:2019-07-29

    Abstract: The present invention relates to a method of producing a prepreg, in which a matrix resin is applied to a reinforcing fiber sheet, where the sheet can continuously run without clogging due to generated fuzz, even at a high running speed, and where the sheet can be efficiently impregnated with the matrix resin. The prepreg is produced by a method which includes a step of allowing a reinforcing fiber sheet to pass horizontally or slantingly through the inside of a coating section storing a matrix resin to apply the matrix resin to the reinforcing fiber sheet, where the coating section includes a liquid pool and a narrowed section which are in communication with each other, where the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the reinforcing fiber sheet, and wherein the narrowed section has a slit-like cross-section and has a smaller cross-sectional area than the largest cross-sectional area of the liquid pool.

    Separation membrane element
    15.
    发明授权

    公开(公告)号:US10906003B2

    公开(公告)日:2021-02-02

    申请号:US16092975

    申请日:2017-04-24

    Abstract: The present invention relates to a separation membrane element including: a separation membrane; and a permeate-side channel material disposed on a permeate side of the separation membrane, wherein the permeate-side channel material is a rugged sheet object having a recess and a protrusion on at least one face thereof, the rugged sheet object is composed of a porous region formed of a through-hole in a thickness direction of the rugged sheet and a non-porous region other than the porous region, and a rate of a number of the through-hole in the recess of the rugged sheet object to a total number of the through-hole present in the rugged sheet object is 80% or more.

    PRODUCTION METHOD AND PRODUCTION DEVICE OF FILM HAVING FINE IRREGULAR PATTERN ON SURFACE
    16.
    发明申请
    PRODUCTION METHOD AND PRODUCTION DEVICE OF FILM HAVING FINE IRREGULAR PATTERN ON SURFACE 有权
    具有表面微细图案的薄膜的生产方法和生产装置

    公开(公告)号:US20150072039A1

    公开(公告)日:2015-03-12

    申请号:US14539431

    申请日:2014-11-12

    Abstract: A method for producing a film having a fine irregular pattern intermittently includes feeding a film to be processed intermittently from upstream side to the vicinity of the surface of a die having a fine irregular pattern, transferring the pattern to the surface of the film by pressing the film against the surface of a die, stripping the processed film on which a pattern is formed from the surface of a die, and then feeding a new film to be processed to the die, wherein the processed film is stripped from the surface of a die by gripping and moving the processed film to the upstream side, and then the processed film is fed by a length of intermittent feed to the surface of a die while preventing the processed film from creasing.

    Abstract translation: 间歇地形成具有细微不规则图案的膜的方法包括从具有细微不规则图案的模具的表面的上游侧到附近间歇地进给待处理的膜,通过压制将图案转印到膜的表面 从模具的表面剥离形成有图案的处理膜,然后将待处理的新的膜供给到模具,其中将处理后的膜从模具的表面剥离, 通过将处理的膜夹持并移动到上游侧,然后将处理后的膜以一定间隔的进料供给到模具的表面,同时防止加工的膜起皱。

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