POLYAMIDE AND MOLDED BODY AND FILM OBTAINED FROM THE SAME AND METHOD FOR PRODUCING THE POLYAMIDE

    公开(公告)号:US20230331987A1

    公开(公告)日:2023-10-19

    申请号:US18021689

    申请日:2021-09-13

    Applicant: UNITIKA LTD.

    CPC classification number: C08L77/10 C08G69/265 C08L2203/16 C08L2201/08

    Abstract: The present invention provides a polyamide and a polyamide film which are more sufficiently superior in all of heat-resisting properties, flexibility properties and rubber elastic properties. The present invention relates to a polyamide comprising a unit comprised of an aliphatic dicarboxylic acid (A) having 18 or more carbon atoms, a unit comprised of an aliphatic diamine (B) having 18 or more carbon atoms, a unit comprised of an aromatic dicarboxylic acid (C) having 12 or less carbon atoms and a unit comprised of an aliphatic diamine (D) having 12 or less carbon atoms, wherein the polyamide has a melting point of 240° C. or more, a crystalline melting enthalpy of 20 J/g or more and an elongation recovery rate of 50% or more in a hysteresis test, and a polyamide film comprising the polyamide.

    Filled polycarbonate composition having low thermal expansion

    公开(公告)号:US11781011B2

    公开(公告)日:2023-10-10

    申请号:US17599078

    申请日:2020-03-20

    Inventor: Tim Hungerland

    Abstract: The present invention relates to a thermoplastic composition, comprising: A) aromatic polycarbonate and B) Ba) reinforcing fibers and/or Bb) spherical particles of oxides of metals or metalloids of the 3rd main group, 4th main group and/or 4th transition group. The composition further comprises: C) PMMI copolymer and D) phosphite stabilizer and/or phosphine stabilizer, wherein, furthermore, the proportion of B) is ≥35% by weight to ≤40% by weight and the proportion of C) is >0.1% by weight in each case based on the total weight of the composition.
    The invention further relates to a layered arrangement comprising a substrate layer and a reflection layer distinct from the substrate layer and at least partially covering the substrate layer, wherein the reflection layer at least partially reflects light in the wavelength range from 380 nm to 750 nm, an illumination apparatus comprising a light source and a reflector, wherein the reflector is arranged such that at least a portion of the light transmitted by the light source is reflected by the reflector, and to a process for producing a molded article.

    THERMALLY CONDUCTIVE COMPOSITION
    208.
    发明公开

    公开(公告)号:US20230313017A1

    公开(公告)日:2023-10-05

    申请号:US18127720

    申请日:2023-03-29

    Abstract: A thermally conductive composition contains a resin composition and a thermally conductive filler, wherein the resin composition contains a liquid silicone resin having a viscosity ranging from 20 mPa·s to 200,000,000 mPa·s at 25° C. as measured according to JIS Z8803:2011 and a polysiloxane compound having at least one hydroxy group not directly bound to a silicon atom at an end, and having no vinyl group; the mass ratio of the liquid silicone resin to the polysiloxane compound [the liquid silicone resin/the polysiloxane compound] is 50/50 or more and less than 90/10, the content of the thermally conductive filler ranges from 300 parts by mass to 5,000 parts by mass with respect to 100 parts by mass of the resin composition, and a cured product of the thermally conductive composition has a thermal conductivity of 1.0 W/mk or more as measured according to ISO22007-2.

    PROCESSED MOLDED ARTICLE AND METHOD FOR PRODUCING THE SAME

    公开(公告)号:US20230312902A1

    公开(公告)日:2023-10-05

    申请号:US18122826

    申请日:2023-03-17

    Inventor: Yihua SHEN

    CPC classification number: C08L33/02 C08L2201/10 C08L2201/08

    Abstract: An object of the present invention is to provide a method for producing a processed molded article containing polylactic acid and having excellent transparency and excellent heat resistance. The method for producing a processed molded article of the present invention includes the following steps: preparing a molded article that contains polylactic acid containing an L-lactic acid unit at an amount of 99.0 mol % or more based on the total constituent units of the polylactic acid or a D-lactic acid unit at an amount of 99.0 mol % or more based on the total constituent units of the polylactic acid; and impregnating the molded article with carbon dioxide.

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