COMPOSITIONS AND MULTILAYER FILMS FOR RECLOSABLE PACKAGING

    公开(公告)号:US20200216649A1

    公开(公告)日:2020-07-09

    申请号:US16640474

    申请日:2018-09-19

    摘要: The present disclosure includes a composition that includes an ethylene/α-olefin random copolymer having density of 0.890 g/cm3 or less, a melting point of 100° C. or less, and a melt index from 0.2 g/10 min to 8.0 g/10 min, a styrenic block copolymer M comprising from 1 wt % to less than 50 wt % units of styrene, a tackifier, and an oil. The composition may exhibit an overall melt index of the composition of from 2 g/10 min to 15 g/10 min. The composition can be used as an adhesive in some embodiments. The present disclosure also includes multilayer films that include the composition, which may provide reclose functionality to the multilayer film. The multilayer films that include the composition may provide low initial opening force and improved reclose adhesion through multiple reclose cycles. The present disclosure also includes various types of reclosable packaging articles that include the multilayer films and adhesive compositions.

    Compositions and multilayer films for reclosable packaging

    公开(公告)号:US11434354B2

    公开(公告)日:2022-09-06

    申请号:US16640474

    申请日:2018-09-19

    摘要: The present disclosure includes a composition that includes an ethylene/α-olefin random copolymer having density of 0.890 g/cm3 or less, a melting point of 100° C. or less, and a melt index from 0.2 g/10 min to 8.0 g/10 min, a styrenic block copolymer comprising from 1 wt % to less than 50 wt % units of styrene, a tackifier, and an oil. The composition may exhibit an overall melt index of the composition of from 2 g/10 min to 15 g/10 min. The composition can be used as an adhesive in some embodiments. The present disclosure also includes multilayer films that include the composition, which may provide reclose functionality to the multilayer film. The multilayer films that include the composition may provide low initial opening force and improved reclose adhesion through multiple reclose cycles. The present disclosure also includes various types of reclosable packaging articles that include the multilayer films and adhesive compositions.

    FILMS CONTAINING EXTRUDABLE ADHESIVE FORMULATIONS
    5.
    发明申请
    FILMS CONTAINING EXTRUDABLE ADHESIVE FORMULATIONS 审中-公开
    包含可挤压粘合剂制剂的胶片

    公开(公告)号:US20160052242A1

    公开(公告)日:2016-02-25

    申请号:US14779174

    申请日:2014-04-10

    摘要: The invention provides a film comprising at least two layers, Layer A and Layer B, and wherein Layer A is formed from a Composition A comprising the following: an ethylene/α-olefin block copolymer, and a tackifier, and wherein the Composition A has a melt index (12) from 1 to 50 g/10 min, and an 110/12 ratio from 7.5 to 13; and wherein Layer B is formed from a Composition B comprising one of the following: i) a polar polymer, ii) a polyolefin, or iii) a combination thereof.

    摘要翻译: 本发明提供了包含至少两层的层A和层B的膜,并且其中层A由包含以下物质的组合物A形成:乙烯/α-烯烃嵌段共聚物和增粘剂,其中组合物A具有 熔体指数(12)为1〜50g / 10min,110/12比为7.5〜13; 并且其中层B由包含以下之一的组合物B形成:i)极性聚合物,ii)聚烯烃,或iii)其组合。

    Ethylene/propylene/nonconjugated diene interpolymer composition

    公开(公告)号:US11866530B2

    公开(公告)日:2024-01-09

    申请号:US17607551

    申请日:2019-04-30

    IPC分类号: C08F210/18 C08F2/06

    CPC分类号: C08F210/18 C08F2/06

    摘要: The present disclosure provides a composition. The composition can be formed into a foam composition. In an embodiment, the composition includes a neat ethylene/propylene/nonconjugated polyene interpolymer. The neat ethylene/propylene/nonconjugated polyene interpolymer includes from greater than 6.0 wt % to 15.0 wt % nonconjugated polyene. The neat ethylene/propylene/nonconjugated polyene interpolymer has the following properties: (i) a molecular weight (Mw) from 240,000 to 270,000; (ii) a Mooney viscosity (ML (1+4), 125° C.) from 85 to 95; (iii) a rheology ratio (RR) from 35 to 65; (iv) a Mw/Mn from 2.2 to 3.5; and (v) Mw

    POLYOLEFIN COMPOSITIONS HAVING IMPROVED VOLUME RESISTIVITY

    公开(公告)号:US20220298338A1

    公开(公告)日:2022-09-22

    申请号:US17638431

    申请日:2019-08-30

    IPC分类号: C08L23/08

    摘要: The present disclosure relates to a curable composition comprising: (A) a polyolefin; (B) siliceous earth; (C) a crosslink agent; (D) a crosslinking co-agent; and, optionally, (E) an additive component, where the curable composition demonstrates improved electrical properties. The present disclosure further relates to a crosslinked polymer composition that is the reaction product of the curable composition, where improved electrical properties are demonstrated as well.

    EPDM Blends with Long Chain Branching

    公开(公告)号:US20220251360A1

    公开(公告)日:2022-08-11

    申请号:US17622069

    申请日:2020-06-18

    IPC分类号: C08L23/16

    摘要: The present disclosure provides a composition. In an embodiment, the composition includes a non-irradiated ethylene/propylene/non-conjugated polyene terpolymer (nr-terpolymer) and a branched ethylene/propylene/non-conjugated polyene terpolymer (b-terpolymer). The b-terpolymer has: (A) a Mooney viscosity (ML 1+4 @ 125° C.) from 35 MU to 120 MU; (B) a rheology ratio from 55 to 110; and (C) a phase angle δ from 20° to 39°.

    ETHYLENE/ALPHA-OLEFIN/POLYENE INTERPOLYMER COMPOSITIONS

    公开(公告)号:US20220298344A1

    公开(公告)日:2022-09-22

    申请号:US17639575

    申请日:2020-09-21

    IPC分类号: C08L23/16

    摘要: A composition comprising a first composition and a second composition, and wherein the first composition comprises a first ethylene/alpha-olefin/nonconjugated polyene interpolymer and a second ethylene/alpha-olefin/nonconjugated polyene interpolymer; and wherein the second composition comprises a third ethylene/alpha-olefin/non-conjugated polyene interpolymer and a fourth ethylene/alpha-olefin/nonconjugated polyene interpolymer; and wherein the first composition has a Mooney Viscosity (ML(1+4), 125° C.)≥50, and a Rheology Parameter ((RR/Mn)×1000)≥0.50; wherein the second composition has a Mooney Viscosity (ML(1+4), 125° C.)