Abstract: The invention relates to a pencil 1 for writing, drawing, painting and/or cosmetics purposes, comprising a colored core 11 and a core holder enclosing the core 1, wherein the core holder comprises a wood-replacement material 12 which encloses the core 1, wherein the core 1 and core holder are retained such that they cannot be displaced in relation to one another, wherein the core holder has a carrying sleeve 13 which encloses the wood-replacement material 12, and wherein the modulus of elasticity of the carrying sleeve 13 is equal to, or higher than, that of the wood-replacement material and the bending strength of the carrying sleeve is higher than that of the wood-replacement material.
Abstract: A writing, drawing, painting or cosmetic device having at least one honeycomb body formed from a plastic material and/or a composite material consisting of a natural material and a plastic material. The at least one honeycomb body contains a plurality of hollow longitudinal structures that are axially parallel to one another.
Abstract: A pencil that includes a polymer-bonded lead, a polymerbonded wood substitute material that includes an organic filler and covers or surrounds the lead along its length, and an adhesion promoter layer disposed between the lead and the wood substitute material. The lead and the wood substitute material each have a polymer. The polymer in the lead being incompatible with the polymer in the wood substitute material so that the polymer of the lead and the polymer of the wood substitute material do not create any connection with one another. The adhesion promoter layer is connected to the polymer in the lead and to the polymer in the wood substitute material so that the adhesion promoter layer forms a connection with the polymer in the lead and with the polymer of the substitute material. The organic filler is formed by particles having a maximum particle size of 250 ?m.
Type:
Grant
Filed:
July 11, 2009
Date of Patent:
June 10, 2014
Assignee:
J.S. Staedtler GmbH & Co. KG
Inventors:
Andreas Thies, Nikolas Lins, Christine Delapierre-Kohl, Johannes Herbolsheimer, Martin Jakob, Harald Lang, Simone Arthen
Abstract: A polymer-bound writing substance for writing, drawing and/or painting tools, particularly for pencils or colored pencils, including at least one polymer bonding agent, at least one wax, and at least one filler material, wherein the writing substance is further provided with 0.1 to 5 wt % of palm kernel oil, and/or coconut butter, and/or coconut oil, and/or oleic acid.
Abstract: A modelling material contains a binder in the form of a plastisol, wherein the plastisol contains essentially PVC (polyvinyl chloride) and at least one phthalate-free plasticizer. The phthalate-free plasticizer is citric acid-based, adipic acid-based, or benzoate ester-based. The material contains 5% by weight to 95% by weight PVC; 5% by weight to 30% by weight phthalate-free plasticizer; 0% by weight to 10% by weight stabilizer; 0% by weight to 10% by weight co-stabilizer; 0% by weight to 75% by weight fillers; 0% by weight to 5% by weight coloring agent; and 0% by weight to 5% by weight other additives.
Abstract: A polymer-bonded pencil lead for writing, drawing, and/or painting devices, including at least one polymer binder, one wax, and at least one filler. The pencil lead includes 0.5 to 2.5% by weight palm oil.
Abstract: The invention relates to a polymer-bound writing substance for writing, drawing and/or painting tools, particularly for pencils or colored pencils, comprising at least one polymer bonding agent, at least one wax, and at least one filler material, wherein the writing substance is further provided with 0.1 to 5 wt % of palm kernel oil, and/or coconut butter, and/or coconut oil, and/or oleic acid.
Abstract: The invention relates to a wood substitute material for wood-encased pencils, comprising the following ingredients: 15-3.0% by weight of at least one polymeric binder, 50-80% by weight of at least one organic filler, 0-20% by weight of at least one inorganic filler, 0.5-5% by weight of at least one adhesion promoter, 1-30% by weight of at least one wax, 0-10% by weight of at least one color pigment, and 0-10% by weight of at least one additive, the at least one adhesion promoter forming a chemical bond between the at least one polymeric binder and the at least one organic filler, a ratio of the at least one adhesion promoter and the at least one wax in the range from 1:2 to 1:6 being formed, and the sum of organic and inorganic filler being not more than 80% by weight.
Type:
Grant
Filed:
July 11, 2009
Date of Patent:
May 29, 2012
Assignee:
J.S. Staedtler GmbH & Co. KG
Inventors:
Nikolas Lins, Sylvia Diestel, Andreas Thies