Patent classifications
B29K2995/0041
ORIENTED POLYPROPYLENE FILM WITH IMPROVED BLOCKING RESISTANCE
The present disclosure is directed to a film formulation that resulted in a substantially non-migratory cold seal release film with improved blocking resistance. Specifically, the multilayered biaxially oriented polypropylene film can include a core layer of polypropylene homopolymer; a first outer layer on one side of the core layer that can be suitable for sealing, printing, or coating; and a second outer layer on the opposite side of the core layer that is a blocking resistant layer comprising thermoplastic polymers which reduce blocking tendency.
ORIENTED POLYPROPYLENE FILM WITH IMPROVED BLOCKING RESISTANCE
The present disclosure is directed to a film formulation that resulted in a substantially non-migratory cold seal release film with improved blocking resistance. Specifically, the multilayered biaxially oriented polypropylene film can include a core layer of polypropylene homopolymer; a first outer layer on one side of the core layer that can be suitable for sealing, printing, or coating; and a second outer layer on the opposite side of the core layer that is a blocking resistant layer comprising thermoplastic polymers which reduce blocking tendency.
Method of producing a composite pipe and such a composite pipe
A composite pipe comprises a polyetheretherketone innermost pipe around which a reinforcing overwrap is arranged. A protective sheath surrounds the overwrap. Such a composite pipe may be made by selecting a polyetheretherketone pipe having an outer region having a crystallinity of less than 25%; overlaying the selected pipe with overwrap; and subjecting the combination to heat, thereby causing the crystallinity of the outer region of the polyetheretherketone pipe to increase. The method reduces the risk of pipe failure.
CARBON FIBER CRYSTAL ORIENTATION IMPROVEMENT BY POLYMER MODIFICATION, FIBER STRETCHING AND OXIDATION FOR BRAKE APPLICATION
A method of making carbon fiber material according to various embodiments of the present disclosure includes forming a polymer resin to have a polydispersity index (PDI) that is less than approximately 2.5. The method further includes spinning the polymer resin to create an acrylic fiber having an acrylic fiber length. The method further includes oxidizing the acrylic fiber while stretching the acrylic fiber to create an oxidized fiber that has an oxidized fiber length that is at least one of greater than or equal to approximately 100 percent (100%) of the acrylic fiber length. The method further includes carbonizing the oxidized fiber to create a carbon fiber.
Bioabsorbable polymeric composition for a medical device
A crystallized bioabsorbable polymer scaffold comprises a polymer composition of poly (L-lactide-co-tri-methylene-carbonate) or poly (D-lactide-co-tri-methylene-carbonate) or poly (L-lactide-co--caprolactone) or poly (D-lactide-co--caprolactone) in the form of block copolymers of blocky copolymers, wherein the scaffold is cold-bendable.
Composition, Injection Molded Article Made Therefrom and Process to Make an Injection Molded Article
A composition including (a) propylene/ethylene interpolymer having a density from 0.860 to 0.870 g/cc; (b) a propylene-based polymer selected from the group consisting of a homopolymer polypropylene, a random propylene/-olefin interpolymer and any combination thereof and wherein the propylene-based polymer has a density 0.885 g/cc; (c) a plasticizing agent; and (d) a third polymer selected from the group consisting of the following (i) a styrenic ethylene/butylene triblock copolymer having a Tg (rubber block) greater than, or equal, 40 C., (ii) less than, or equal to, 15 wt %, based on the weight of the composition, of an ethylene/-olefin/diene interpolymer, or an ethylene/propylene copolymer, (iii) an ethylene vinyl acetate copolymer, and (iv) any combination thereof is provided. Further provided is an injection molded article comprising the composition and a process for making an injection molded article.
Polyethylene for superior sheet extrusion thermoforming performance
A method of forming a thermoformed article may include melt extruding polyethylene to form an extruded sheet. The rheological breadth parameter of the polyethylene may change by no more than about 5% after extrusion relative to the rheological breadth parameter of the polyethylene prior to extrusion. The extruded sheet may be thermoformed within a mold to form the thermoformed article. During thermoforming, the extruded sheet may be subjected to solid-state stretching in one or more directions. The thermoformed article may be retrieved from the mold. The polyethylene may have a rheological breadth parameter of from 0.20 to 0.40, a multimodal molecular weight distribution, a polydispersity (Mw/Mn) of from 5 to 18, a density ranging from 0.940 to 0.970 g/cc, may exhibit tensile strain-hardening, or combinations thereof.
Dynamic in-fiber particle production with precise dimensional control
A fiber is provided that has been thermally drawn from a fiber preform, having a longitudinal-axis length and including at least one core that has a longitudinal core axis parallel to the longitudinal axis and internally disposed to at least one outer fiber cladding material layer along the fiber length. The fiber is fed through a localized heating site having a heating site temperature, T, that is above a melting temperature of the fiber core, with a feed speed, .sub.f, that melts a portion of the fiber core at the heating site, causing molten droplets to pinch off of fiber core material, one droplet at a time, with a time period of molten droplet formation set by the fiber feed speed, .sub.f. The fiber is fed through the localized heating site to move the molten droplets out of the heating site and solidify the molten droplets into solid in-fiber particles.
OPTICAL LAMINATE, METHOD FOR PRODUCING SAME, POLARIZING PLATE, AND DISPLAY DEVICE
An optical layered body including: a substrate layer formed of a resin containing a crystallizable polymer A; and a first surface layer formed of a resin containing an amorphous polymer B, wherein a glass transition temperature TgA of the crystallizable polymer A and a glass transition temperature TgB of the amorphous polymer B satisfy TgB>TgA, a crystallization temperature TcA of the crystallizable polymer A and the glass transition temperature TgB of the amorphous polymer B satisfy TcA10 C.TgBTcA60 C., the first surface layer has a plane orientation coefficient P that satisfies P0.01, and a ratio of a thickness of the substrate layer relative to a total thickness of the optical layered body is 25% or more.
RESIN FILM, CONDUCTIVE FILM AND METHOD FOR PRODUCING THESE FILMS
A resin film including a crystallizable polymer, wherein an in-plane retardation Re of the resin film is less than 5 nm, a thickness-direction retardation Rth of the resin film is less than 25 nm, and a haze HZ of the resin film is less than 3.0%.