Process for production or treatment of hollow articles
A process is described for production or treatment of hollow articles. The process comprises using a material which comprises polyolefin waxes prepared using metallocene catalysts and/or which comprises their derivatives, or which is composed of the substances.
1 . A process for production of a hollow article comprising the step of using a material including one or more metallocene polyolefin waxes or one or more metallocene polyolefin wax derivatives.
2 . The process for production of a hollow article, as claimed in claim 1 , further comprising the steps of:
i) molding of a core composed of the material and
ii) applying one or more solids to at least a portion of the core.
3 . The process for production of a hollow article, as claimed in claim 1 , wherein the hollow article is selected from the group consisting of hollow metallic components, fiber- or particle-reinforced plastics parts, and metal-casting molds.
4 . The process for production of a hollow article, as claimed in claim 1 , wherein the hollow article is a fiber- or particle-reinforced plastics part, and the material is expandable.
5 . The process for production of a hollow article, as claimed in claim 1 , wherein the hollow article is a hollow metallic component, and the material is a binder for production of conductive coatings.
6 . The process for production of a hollow article as claimed in claim 1 , wherein the article is a metal-casting mold, and the process further comprises coating the material by immersing the material in a flame-retardant molding composition to form a coated material, hardening the coated material and firing the coated material.
7 . The process for production of a hollow article, as claimed in claim 1 , wherein the material is used together with at least one other substance selected from the group consisting of natural waxes, synthetic waxes, natural resins and synthetic resins.
8 . (canceled)
9 . (canceled)
10 . The process for production of a hollow article, as claimed in claim 2 , further comprising removing the material from the hollow article after the production of the hollow article.
11 . The process for production of a hollow article, as claimed in claim 10 , wherein the removing step further comprises removing the material from the hollow article by melting, dissolution or a combination thereof.
12 . A hollow article made in accordance with the process of claim 1 .
13 . A process for treatment of a hollow article comprising the step of using a material including one or more metallocene polyolefin waxes or one or more metallocene polyolefin wax derivatives.
14 . The process for treatment of a hollow article, as claimed in claim 13 , further comprising:
i) filling the hollow article with the material to form a stored hollow article, and
ii) treating the stored hollow article.
15 . The process for treatment of a hollow article, as claimed in claim 14 , wherein the treating step further comprises a mechanical treatment.
16 . The process for treatment of a hollow article, as claimed in claim 13 , further comprising removing the material from the hollow article after the treatment of the hollow article.
17 . The process for treatment of a hollow article, as claimed in claim 16 , wherein the removing step further comprising removing the material from the hollow article by melting, dissolution or a combination thereof.
18 . A hollow article made in accordance with the process of claim 13.