ALL-POLYETHYLENE LAMINATE FILM STRUCTURES HAVING BARRIER ADHESIVE LAYER

    公开(公告)号:US20220324214A1

    公开(公告)日:2022-10-13

    申请号:US17852446

    申请日:2022-06-29

    Abstract: Recyclable, all-polyethylene laminate film structures suitable for use in a flexible packaging are disclosed. The structures comprise a film layer consisting essentially of an ethylene-based polymer and a barrier adhesive layer disposed on a surface of the film layer, wherein the structure has an oxygen transmission rate not greater than 100 O2/m2/day, measured according to ASTM Method D3985. Recyclable, all-polyethylene laminate film structures suitable for use in a flexible packaging are disclosed comprising (A) a sealant film layer consisting essentially of an ethylene-based polymer, (B) an intermediate film layer consisting essentially of an ethylene-based polymer, (C) a structural film layer consisting essentially of an ethylene-based polymer, and (D) a barrier adhesive layer, wherein the recyclable, all-polyethylene laminate film structure has an oxygen transmission rate not greater than 100 O2/m2/day, measured according to ASTM Method D3985. Articles comprising the disclosed laminate film structures, such as flexible packaging and stand-up pouches, are also disclosed.

    BARRIER FILMS OF FDCA-BASED POLYESTERS
    18.
    发明申请
    BARRIER FILMS OF FDCA-BASED POLYESTERS 审中-公开
    基于FDCA的聚酯的阻隔膜

    公开(公告)号:US20150353692A1

    公开(公告)日:2015-12-10

    申请号:US14653563

    申请日:2013-12-18

    Abstract: A barrier film comprising a polyester-based polymer with (a) an O2 gas permeability of 0.25 cc-mil/100 in.2 24 hrs atm (5 cc 20 μm/m2 24 hrs atm) at 80% relative humidity (ASTM D-3985) or less, (b) a moisture permeability of 0.5 g-mil/100 in.2 24 hrs atm (9.8 g 20 μm/m2 24 hrs atm) at 38° C. (ASTM F-1249) or less, (c) haze of 1% or less (ASTM D1003), and (d) a glass transition temperature of 100° C. or higher. The polyester-based polymer may comprise reaction product of (a) one or more diacid or diester thereof, and (b) one or more polyol, wherein component (a) comprises 5 to 100 mole %, based on the total amount of component (a), of 2,5-furan dicarboxylic acid, or one or more C1 to C10 alkyl diester thereof, and component (b) comprises ethylene glycol, a mixture of 1,3-cyclohexanedimethanol and 1,4-cyclohexanedimethanol, or 2,2,4,4-tetramethyl-1,3-cyclobutanediol, or combinations thereof.

    Abstract translation: 包含聚酯基聚合物的隔离膜,其具有(a)在80%相对湿度下的氧气渗透率为0.25cc密尔/ 100in.2,24小时atm(5cc20μm/ m 2 24小时atm)(ASTM D- 3985)或更小,(b)在38℃下24小时大气压(9.8g20μm/ m 2 24小时atm)下的透湿度为0.5g密耳/ 100(ASTM F-1249)或更低,( c)雾度为1%以下(ASTM D1003),(d)玻璃化转变温度为100℃以上。 基于聚酯的聚合物可以包含(a)一种或多种二酸或二酯的反应产物和(b)一种或多种多元醇,其中组分(a)占组分总量的5-100摩尔% a),2,5-呋喃二羧酸或其一个或多个C1至C10烷基二酯,组分(b)包括乙二醇,1,3-环己烷二甲醇和1,4-环己烷二甲醇的混合物,或2, 2,4,4-四甲基-1,3-环丁二醇或其组合。

Patent Agency Ranking