Process to Make High Density Ethylene-Based Polymer Compositions with High Melt Strength

    公开(公告)号:US20200087492A1

    公开(公告)日:2020-03-19

    申请号:US16470853

    申请日:2017-11-29

    Abstract: A process for producing a composition comprising A) an ethylene-based polymer that has a density greater than, or equal to, 0.940 g/cc, and B) an ethylene homopolymer formed by polymerizing a reaction mixture comprising ethylene, using a free-radical, high pressure polymerization process includes adding component (A) to a molten stream of component (B) after component (B) exits the separator and before component (B) is solidified in the pelletizer. A polymerization configuration for producing the composition includes at least one reactor, at least one separator, at least one pelletizer, and a device used to feed component (A), in the molten state, to a molten stream of component (B) before the pelletizer. The composition has a ratio of the melt strength of the composition to the melt strength of component (B) is greater than or equal to 1.04 and a density of greater than 0.920 g/cc.

    Laminate film structures having barrier adhesive layer

    公开(公告)号:US11607864B2

    公开(公告)日:2023-03-21

    申请号:US16643246

    申请日:2018-07-17

    Abstract: Laminate film structures including an adhesive layer having gas and moisture barrier properties are disclosed. The disclosed laminate film structures comprise films bonded together with an adhesive composition, the adhesive composition having barrier properties, e.g., controlling oxygen and/or water vapor transmission rates. The disclosed laminate film structures comprise films made from polymers and/or metallized polymers whereby the weight, thickness, and/or number of film layers has been reduced by using a barrier adhesive in place of a standard adhesive while still achieving similar barrier properties. Methods for forming laminate structures having a desired barrier performance are also disclosed, the methods comprising determining the desired barrier performance of the laminate structure, selecting a barrier adhesive, selecting two or more film layers, including at least a first film layer and a second film layer, applying the barrier adhesive on a surface of the first film layer, and bringing a surface of the second film layer into contact with the barrier adhesive applied on the surface of the first film layer, thereby forming the laminate structure having a desired barrier performance.

    Asphalt compositions including recycled polymer and epoxy-functionalized ethylene copolymer

    公开(公告)号:US12215232B2

    公开(公告)日:2025-02-04

    申请号:US17424351

    申请日:2020-01-31

    Abstract: The present disclosure provides embodiments of an asphalt composition and methods of making that may include asphalt binder; a recycled polymer component; an epoxy-functionalized ethylene copolymer, the epoxy-functionalized ethylene copolymer having the formula E/X/Y/Z. E may be a copolymer unit —(CH2CH2)— derived from ethylene; X may be a copolymer unit —(CH2CR1R2)—, where R1 is hydrogen, methyl, or ethyl, and R2 is carboalkoxy, acyloxy, or alkoxy of 1 to 10 carbon atoms, present in from 0 to about 40 weight % of the copolymer; Y may be a copolymer unit —(CH2CR3R4)—, where R3 is hydrogen or methyl and R4 is carboglycidoxy or glycidoxy present in from 0 to about 25 weight % of the copolymer; Z may be a copolymer derived from comonomers including carbon monoxide, sulfur dioxide, acrylonitrile, or other monomers, present from 0 to about 10 weight % of the copolymer.

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