Ethylene-vinyl alcohol copolymer composition pellets comprise: an ethylene-vinyl alcohol copolymer, a conjugated polyene, and a predetermined amount of at least one fisheye-suppressing component; wherein pellet surface portions of the ethylene-vinyl alcohol copolymer composition pellets have a conjugated polyene content of not lower than 30 ppb based on the weight of the pellets. Such ethylene-vinyl alcohol copolymer composition pellets are capable of reliably suppressing occurrence of minute fisheyes having a diameter of 200 μm or smaller.

Polymer blends, methods of making the polymer blends, and articles of manufacture that include the polymer blends are described. A polymer blend can include a high density polyethylene (HDPE) polymer and a random block copolymer. The random block copolymer can include two different saturated alkane blocks between aromatic blocks (e.g., two styrenic blocks).

Disclosed is a process for producing a multimodal ethylene polymer composition suitable for producing films by blow moulding. The process comprises (i) copolymerising ethylene and an alpha-olefin comonomer in a first polymerisation step to produce a first ethylene copolymer (PE1); (ii) copolymerising ethylene and an alpha-olefin comonomer in a second polymerisation step in the presence of the first ethylene copolymer to produce a first ethylene polymer mixture (PEM1), wherein the MFR.sub.2 of PE1 is higher than the MFR.sub.2 of PEM1; and (iii) copolymerising ethylene and an alpha-olefin comonomer in a third polymerisation step in the presence of the PEM1 to produce a second ethylene polymer mixture (PEM2) having a density of from 915 to 925 kg/m.sup.3 and a melt flow rate MFR.sub.5 of from 0.3 to 5 g/10 min.

A synthetic resin container and a preform that can suppress increase in size of a mouth and can improve stability when a mouth is transferred by being gripped by a gripper. A synthetic resin container includes a tubular mouth and forms an accommodation space for contents. An outer circumferential surface of the mouth is provided with a gripper engaging groove to be engaged with a gripper of a transfer apparatus, the gripper engaging groove is formed such that a width of the groove of an opening opened in the outer circumferential surface of the mouth is decreased from an opening toward a bottom of the groove, and the gripper engaging groove corresponds to a shape of the gripper and has an upper side inclination and a lower side inclination respectively obliquely extending with respect to a plane perpendicular to an axis of the mouth.

Various embodiments disclosed relate to visually transparent UV-absorbing coatings including ZnO nanoparticles. The coating includes ZnO nanoparticles, hydroxy(C.sub.1-C.sub.10)alkyl cellulose, a dispersant, and less than about 5 wt % water.

The use of polymeric materials as glass substitutes to make products suitable for use in the analysis of liquid samples and the corresponding products are disclosed herein. Polymer-based products suitable for use to analyze liquid samples may be particularly useful in petroleum industry applications. Specifically, a sample-testing apparatus, such as a centrifuge tube or hydrometer, for use with a sample containing materials such as crude oil, petroleum products, petrochemicals, fractions thereof, and impurities therein is disclosed herein. A sample-testing apparatus comprising one or more polymers in the polysulfone family, preferably polysulfone (PSU) and polyphenylsulfone (PPSU), and most preferably polyphenylsulfone may render the apparatus substantially transparent; substantially chemically inert to degradation by crude oil and petroleum products; substantially thermally stable; substantially rigid when subjected to conditions such as elevated temperatures, externally-applied threes, or the combination thereof; and substantially shatter-resistant and will provide superior performance compared to products currently used in industry.

New hydrogenated styrenic block copolymers, in particular styrene-ethylene/butylene-styrene copolymers (SEBS copolymers), with improved performance in thermoplastic elastomer compositions (TPE compositions), process for preparing said hydrogenated styrenic block copolymers, reprocessable TPE-S compositions made thereof, method for producing an article from said reprocessable TPE-S compositions and articles made of said reprocessable TPE-S compositions, in particular suitable for medical applications.

A polymer is provided that preferably includes at least one unsaturated cycloaliphatic group. In one embodiment, the polymer is combined with an optional crosslinker and an optional carrier to form a coating composition suitable for use in coating articles such as packaging articles. In one embodiment, the polymer has at least one unsaturated cycloaliphatic group that is at least bicyclic.

The present disclosure provides a composition. The composition contains (A) an ethylene-based polymer; (B) a carboxylic-functionalized ethylene-based polymer; and (C) from 0.5 wt % to 5.0 wt % of a polydimethylsiloxane, based on the total weight of the composition. The present disclosure also provides a film with a layer containing said composition.

This disclosure relates to ethylene interpolymer compositions. Specifically, ethylene interpolymer products having: a Dilution Index (Y.sub.d) greater than 0; total catalytic metal 3.0 ppm; 0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (X.sub.d) greater than 0. The disclosed ethylene interpolymer products have a melt index from about 0.3 to about 500 dg/minute, a density from about 0.869 to about 0.975 g/cm.sup.3, a polydispersity (M.sub.w/M.sub.n) from about 2 to about 25 and a CDBI.sub.50 from about 20% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.