There is a lead casing for pencil for writing, drawing, marking, plotting, and/or coloring. The casing is made of a composition having, by weight relative to the total weight of the lead casing for pencil: a) from 50 to 95% of a mixture of polylactic acid and bio-polyethylene in a weight ratio polylactic acid/bio-polyethylene ranging from 60/40 to 90/10, and b) from 5 to 40% of mineral fillers chosen in the group consisting of shellfish shells, more specifically oyster shells, and even more specifically milled oyster shells. There is also a pencil including the lead casing of the disclosure for writing, drawing, marking, plotting, and/or coloring, as well as a method for manufacturing such a pencil.

There is a lead casing for pencil for writing, drawing, marking, plotting, and/or coloring. The casing is made of a composition having, by weight relative to the total weight of the lead casing for pencil: a) from 50 to 95% of a mixture of polylactic acid and bio-polyethylene in a weight ratio polylactic acid/bio-polyethylene ranging from 60/40 to 90/10, and b) from 5 to 40% of mineral fillers chosen in the group consisting of shellfish shells, more specifically oyster shells, and even more specifically milled oyster shells.

There is also a pencil including the lead casing of the disclosure for writing, drawing, marking, plotting, and/or coloring, as well as a method for manufacturing such a pencil.

A pencil for applying a coloring and/or cosmetic substance, having a pigment core composed of the substance that is to be applied and a one-piece injection-molded casing encompassing the pigment core that is composed of a thermoplastic material that consists of a mix of a first plastic phase and a second plastic phase, wherein the casing, respectively viewed in the radial direction, has an outer enrichment zone with a higher concentration of the first plastic phase than in the middle region and the casing, respectively viewed in the radial direction, has an inner enrichment zone with a higher concentration of the first plastic phase than in the middle region.

Examples are disclosed that relate to textile coverings for electronic devices and methods for manufacturing textile coverings for electronic devices. In one example, a textile covering for an electronic device comprises one or more structural fibers woven into a seamless tube, the seamless tube configured to encircle at least a portion of the electronic device. The textile covering also comprises one or more heat-shrink fibers and/or one or more adhesive fibers woven into the seamless tube. The heat-shrink fibers shrink when the seamless tube is heated above a threshold temperature, thereby constricting the seamless tube around the electronic device. The one or more adhesive fibers adhere the textile covering to the electronic device.

A novel method for making decorative structures, specifically for use as writing instruments composed of a novel material composition that scatters and reflects light to exhibit a particular visual effect, i.e. a glitter effect. The composition is made of one or a combination of a number of different resins combined with a mica dust and/or a diamond dust. The resin is an organic compound and in composed partially or entirely from epoxide, polyester and/or polyurethane. Other additives can be added to the resin to enhance the visual effect including ground glass and dyes or pigments.

A pencil for applying a coloring and/or cosmetic substance, having a pigment core composed of the substance that is to be applied and a one-piece injection-molded casing encompassing the pigment core that is composed of a thermoplastic material that consists of a mix of a first plastic phase and a second plastic phase, wherein the casing, respectively viewed in the radial direction, has an outer enrichment zone with a higher concentration of the first plastic phase than in the middle region and the casing, respectively viewed in the radial direction, has an inner enrichment zone with a higher concentration of the first plastic phase than in the middle region.

A novel method for making decorative structures, specifically for use as writing instruments composed of a novel material composition that scatters and reflects light to exhibit a particular visual effect, i.e. a glitter effect. The composition is made of one or a combination of a number of different resins combined with a mica dust and/or a diamond dust. The resin is an organic compound and in composed partially or entirely from epoxide, polyester and/or polyurethane. Other additives can be added to the resin to enhance the visual effect including ground glass and dyes or pigments.

A biodegradable marker pen including a barrel, a cap, and an ink reservoir. The barrel has a hollow cylindrical structure, the ink reservoir is placed in the barrel, and the cap is detachably coupled with the barrel hermetically. The barrel, the cap, and the ink reservoir comprise 2 to 10 mass percentage of a biodegradable masterbatch respectively.

An embodiment of a device is described. The device may include a body. The body includes an outer surface and an inner surface defining a bore within the body. The inner surface defines a maximum inner dimension of the bore no more than 10 millimeters. The bore has a longitudinal axis therethrough. The device may include a plurality of parting lines on the inner surface of the body. The device may include a recess in the inner surface of the body. The recess may be a housed recess and may have a depth in a lateral direction perpendicular to the longitudinal axis of the bore.

Compositions including a sintered porous ultra-high-molecular-weight polypropylene material having a viscosity average molecular weight over 500,000, an average porc size ranging from 10 m to 200 m, and a porosity ranging from 20% to 60%. Devices and methods including such compositions.