PROCESS FOR PRODUCING SEMI-PROCESSED PRODUCT FOR AUTOMOBILE EQUIPMENT

    公开(公告)号:US20200063304A1

    公开(公告)日:2020-02-27

    申请号:US16466142

    申请日:2017-12-12

    Applicant: UNITIKA LTD.

    Abstract: Provided is a method for producing a semi-product for automobile equipment, the semi-processed product being moldable in a relatively broad range of heating temperatures and being capable of obtaining a final product with high stiffness. In the method for producing a semi-processed product for automobile equipment, needle punching is performed on a fiber web in which core-sheath composite fibers are accumulated, and the core-sheath composite fibers are three-dimensionally interlaced together. The core portion of the core-sheath composite fibers comprises a copolymer of ethylene glycol and terephthalic acid. The sheath portion of the core-sheath composition fibers comprises a copolymer including ethylene glycol, adipic acid and terephthalic acid. The weight ratio of core portion to sheath portion in the core-sheath composite fibers is 1 to 3:1. The core portion and the sheath portion are disposed concentrically. In the fiber web, the core-sheath composite fibers are bonded together by softening or melting the sheath portion.

    PRIMARY BASE FABRIC FOR TUFTED CARPET, AND METHOD OF MANUFACTURING SAME

    公开(公告)号:US20190112740A1

    公开(公告)日:2019-04-18

    申请号:US16090327

    申请日:2017-04-10

    Applicant: UNITIKA LTD.

    Inventor: Kenji Chizuka

    Abstract: A primary base fabric for a tufted carpet includes a first non-woven web and a second non-woven web laminated on each other. The first non-woven web is constituted with a first constituent fiber formed with a first thermoplastic resin and containing carbon. The second non-woven web is constituted with a second constituent fiber formed with a second thermoplastic resin and having a carbon content lower than the carbon content of the first constituent fiber or containing no carbon. The primary base fabric is a product prepared by combining the first non-woven web and the second non-woven web through an emboss processing.

    BISMALEIMIDE AND PRODUCTION METHOD THEREOF
    94.
    发明申请

    公开(公告)号:US20180201579A1

    公开(公告)日:2018-07-19

    申请号:US15872463

    申请日:2018-01-16

    Applicant: UNITIKA LTD.

    CPC classification number: C07D207/452 B01D11/0492 C07C267/00

    Abstract: An object of the present invention is to provide a bismaleimide using an aliphatic diamine, in which acid components remaining as an impurity at a very small amount in the bismaleimide have been effectively removed, that is, a bismaleimide using an aliphatic diamine, an acid value of which has sufficiently been reduced, and a method for producing it. There are provided a bismaleimide using an aliphatic diamine as a diamine component, characterized in that an acid value thereof is 2 mg-KOH/g or less, and a method for producing the bismaleimide, comprising adding carbodiimide to a solution comprising a crude bismaleimide having an acid value of more than 2 mg-KOH/g, and reacting acid components in the crude bismaleimide with carbodiimide.

    POLYAMIDE-IMIDE, RAW MATERIAL SALT OF POLYAMIDE-IMIDE, AND PRODUCTION METHOD THEREOF

    公开(公告)号:US20180072848A1

    公开(公告)日:2018-03-15

    申请号:US15564678

    申请日:2016-04-06

    Applicant: UNITIKA LTD.

    Abstract: The present invention is to provide a polyamide-imide which has a high regularity of molecular structure and few branched structures, does not contain hydrogen halide, is not required to be separated and purified in post processes, and can be suitably used as a film, a varnish, or a molding material; raw material salt of polyamide-imide and production method thereof.The polyamide-imide has a repeating unit represented by the general formula (1): in which R1, R2 represent independently a divalent residue having an aromatic ring, an aliphatic ring or an aliphatic hydrocarbon; R3, R4 represent independently a trivalent residue having an aromatic ring or an aliphatic ring; and an hydrogen atom bonding to the respective rings may be replaced by another atom or an atomic group.

    PRIMER FOR FOOTWEAR CONSTITUTING MEMBERS, METHOD FOR PRODUCING SAME, FOOTWEAR CONSTITUTING MEMBER, AND FOOTWEAR
    96.
    发明申请
    PRIMER FOR FOOTWEAR CONSTITUTING MEMBERS, METHOD FOR PRODUCING SAME, FOOTWEAR CONSTITUTING MEMBER, AND FOOTWEAR 有权
    鞋类制造商,其生产方法,鞋类构件和鞋子

    公开(公告)号:US20150315400A1

    公开(公告)日:2015-11-05

    申请号:US14647143

    申请日:2013-12-04

    Applicant: UNITIKA LTD.

    Abstract: The present invention provides a primer for footwear constituting members, wherein the primer includes an acid-modified polyolefin resin and a medium; the acid-modified polyolefin resin is a copolymer including an olefin unit and an unsaturated carboxylic acid unit; the copolymer includes as the olefin unit, a propylene unit (A) and an olefin unit (B) other than the propylene unit; the mass ratio (A/B) between the propylene unit (A) and the olefin unit (B) other than the propylene unit is 60/40 to 95/5; and the content of the unsaturated carboxylic acid unit is 0.1 to 10 parts by mass in relation to 100 parts by mass of the total amount of (A) and (B).

    Abstract translation: 本发明提供了一种用于鞋类构成构件的底漆,其中底漆包括酸改性聚烯烃树脂和介质; 酸改性聚烯烃树脂是包含烯烃单元和不饱和羧酸单元的共聚物; 该共聚物包括作为烯烃单元的除丙烯单元之外的丙烯单元(A)和烯烃单元(B); 丙烯单元(A)和丙烯单元以外的烯烃单元(B)的质量比(A / B)为60/40〜95/5, 相对于(A)和(B)的总量100质量份,不饱和羧酸单元的含量为0.1〜10质量份。

    SEMI-AROMATIC POLYAMIDE FILM
    97.
    发明申请
    SEMI-AROMATIC POLYAMIDE FILM 有权
    半芳族聚酰胺薄膜

    公开(公告)号:US20150252158A1

    公开(公告)日:2015-09-10

    申请号:US14433398

    申请日:2013-09-30

    Applicant: UNITIKA LTD.

    Abstract: Disclosed is a semi-aromatic polyamide film including 98 to 90% by mass of a semi-aromatic polyamide (A) and 2 to 10% by mass of a thermoplastic elastomer (B). The semi-aromatic polyamide (A) includes a dicarboxylic acid mainly composed of terephthalic acid and a diamine mainly composed of an aliphatic diamine having 9 carbon atoms. The thermoplastic elastomer (B) has functional groups. The film is a stretched film.

    Abstract translation: 公开了包含98〜90质量%的半芳香族聚酰胺(A)和2〜10质量%的热塑性弹性体(B)的半芳香族聚酰胺膜。 半芳族聚酰胺(A)包括主要由对苯二甲酸组成的二羧酸和主要由具有9个碳原子的脂族二胺组成的二胺。 热塑性弹性体(B)具有官能团。 这部电影是一部拉伸的电影。

    POROUS POLYAMIDE HOLLOW FIBER MEMBRANE HAVING VERY SMALL PORE DIAMETER, AND METHOD FOR PRODUCING SAME
    99.
    发明申请
    POROUS POLYAMIDE HOLLOW FIBER MEMBRANE HAVING VERY SMALL PORE DIAMETER, AND METHOD FOR PRODUCING SAME 有权
    具有非常小的直径的多孔聚酰胺中空纤维膜及其制造方法

    公开(公告)号:US20150209735A1

    公开(公告)日:2015-07-30

    申请号:US14421887

    申请日:2013-08-14

    Applicant: UNITIKA LTD.

    Abstract: [Problem] The purpose of the present invention is to provide a polyamide hollow fiber membrane having such properties that the transmission of fine particles through the membrane can be prevented effectively, the membrane has an excellent water transmissibility, the entire surface of the membrane has excellent hydrophilicity, and impurities such as metal elements are rarely eluted through the membrane.[Solution] A polyamide hollow fiber membrane produced by a TIPS method under specific production conditions has the following characteristic properties: (1) the contact angle of water on the surface of the membrane is 80° or less; (2) the external pressure water transmissibility of the membrane is 50 L/(m2·atm·h) or more; and (3) the 50 nm-particles blocking ratio of the membrane is 90% or more.

    Abstract translation: 本发明的目的在于提供一种聚酰胺中空纤维膜,其特征在于可以有效地防止细颗粒通过膜的透过,膜具有优异的透水性,膜的整个表面具有优异的 亲水性,杂质如金属元素很少通过膜洗脱。 [解决方案]通过TIPS法在特定制造条件下制造的聚酰胺中空纤维膜具有以下特征:(1)膜表面的水的接触角为80°以下; (2)膜的外压透水率为50L /(m2·atm·h)以上; 和(3)膜的50nm粒子阻隔率为90%以上。

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