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.

This disclosure describes compositions, kits, methods, systems, and three-dimensional parts. According to an example, described herein is a threedimensional printing composition comprising: a polymeric powder build material comprising a thermoplastic polymer powder composition, wherein the thermoplastic polymer powder composition comprises: (a) at least 50 wt % of a C3 polyolefin, or a mixture of two or more polyolefins including at least 60 wt % of a C3 polyolefin based on the total weight of the mixture of the two or more polyolefins, (b) 0.1 to 1 wt % antioxidants, (c) 0.1 to 5 wt % flow aids, (d) 0-10 wt % of a surface modifying agent, (e) 0.05-wt %-10 wt % antistatic agents, (f) 2 wt % to 40 wt % filler, wherein the total of (a) to (f) is 100 wt %.

A multi-layer biaxially oriented polypropylene film (BOPP) can include a core layer; an outer functional layer with the functionalities of heat-sealing, winding, printing, or receiving coatings or metallization; and an outer heat-sealable layer with partially crosslinked polydialkylsiloxane to provide excellent slipperiness and machinability. The partially crosslinked polydialkylsiloxane is not detrimental to the metal adhesion and printability of the functional layer; and maintains excellent heat-seal properties, low and consistent COF, and low and consistent hot slip properties.

A layered tube for a hose assembly includes an inner layer that defines a chamber for directing a hydraulic fluid. The inner layer comprises a first fluoropolymer in an amount of from about 80 to about 99 parts by weight based on 100 parts by weight of the inner layer. The inner layer also comprises an anti-static additive in an amount of from about 1 to about 20 parts by weight based on 100 parts by weight of the inner layer. The layered tube also includes an outer layer surrounding the inner layer. The outer layer comprises a second fluoropolymer in an amount greater than 50 parts by weight based on 100 parts by weight of the outer layer. The second fluoropolymer may be the same as, or different than, the first fluoropolymer.

The present invention relates to a process for moulding a polymeric object, the process comprising the steps of: (a) providing a substantially flat horizontally positioned layer of a material, the layer being a film or sheet; (b) providing a layer of a thermoplastic powder onto the layer provided under (a); (c) subjecting a pre-defined part of the thermoplastic powder to irradiation to heat the pre-defined part of the thermoplastic powder to a temperature at which the thermoplastic fuses or sinters onto at least a part of the flat layer of material; (d) terminating the exposure to irradiation; (e) providing a further layer of the thermoplastic powder onto the layer provided under (b); (f) subjecting a pre-defined part of the thermoplastic powder of the layer provided under (e) to irradiation to heat the pre-defined part of the thermoplastic powder to a temperature at which the thermoplastic fuses or sinters onto at least a part of the flat layer of the material fused under (c); (g) terminating the exposure to irradiation; (h) repeating steps (e)-(g) for as many cycles as required to complete the shape of the desired polymeric object; (i) removing the fraction of thermoplastic powder that has not been fused or sintered; and (j) optionally removing the substantially flat layer as provided under (a) from the polymeric object; wherein the surface area of the substantially flat layer of material is at least 200% of the surface area of that layer produced under steps (c)-(h) having the largest surface area. Such process allows for the production of small series or uniquely designed objects at low energy consumption wherein the objects exhibit high dimensional stability.

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.

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.

The invention provides a thermoplastic film comprising: a base film wherein the base film comprises a stretchable polyolefin material comprising one or more layers; and a plurality of extruded fiber elements; wherein the extruded fiber elements are located on at least one surface of the base film; wherein the extruded fibers form one or more protrusions relative to the plane of the base film; wherein at the location where the fiber elements are provided on the base film, a domain of a material mixture comprising the base film material and the fiber material is present between a domain of pure base film material and a domain of pure fiber material, and wherein the average thickness of the base film is less than the average thickness of the protrusion.

The multilayer foam sheet has a surface resistivity of 1?1013? or less and has a foam layer and resin layers that are laminated on both surfaces of the foam layer. The resin layers each have a multilayer structure formed from a surface layer and an intermediate layer that is positioned between the surface layer and the foam layer. The foam layer includes a polyethylene-based resin PE2. The intermediate layers are configured from an antistatic mixture containing a polyethylene-based resin PE3 and a polymeric antistatic agent. The surface layers are configured from a mixed resin containing a polyethylene-based resin PE4 and a polystyrene-based resin, and substantially do not contain the polymeric antistatic agent. The polystyrene-based resin content of the mixed resin is 3-35 wt %.

The invention provides a thermoplastic film comprising: a base film wherein the base film comprises a stretchable polyolefin material comprising one or more layers; and a plurality of extruded fibre elements; wherein the extruded fibre elements are located on at least one surface of the base film; wherein the extruded fibres form one or more protrusions relative to the plane of the base film; wherein at the location where the fibre elements are provided on the base film, a domain of a material mixture comprising the base film material and the fibre material is present between a domain of pure base film material and a domain of pure fibre material, and wherein the average thickness of the base film is less than the average thickness of the protrusion.