Packaging having sliding layer and method for pharmaceutical and cosmetic substances and preparation for producing same
AssigneeSchott AG
InventorsStephanie Mangold, Tamara Sweeck
Life of this patent
Estimating the term…
Abstract
A liquid preparation for application to an inner side of a hollow body to produce a sliding layer on a packaging for pharmaceuticals or cosmetic products comprises the following constituents: a reactive silicone system for forming a silicone network of the sliding layer, a catalyst for catalyzing the cross-linking reaction of the reactive silicone system, at least one unreactive silicone oil, and at least one diluent. The diluent comprises a silicon-containing compound and a content of the at least one diluent in the preparation amounts to more than 45 percent by weight and less than 95 percent by weight in the preparation.
Claims20
A liquid preparation for application to an inner side of a hollow body to produce a sliding layer on a packaging for pharmaceuticals or cosmetic products, the preparation comprising:
- a reactive silicone system for forming a silicone network of the sliding layer;
- a catalyst for catalyzing a cross-linking reaction of the reactive silicone system;
- at least one unreactive silicone oil;
- and
- at least one diluent comprising a silicon-containing compound, a content of the at least one diluent in the preparation amounting to more than 45 percent by weight and less than 95 percent by weight in the preparation.
A method for producing a packaging for pharmaceuticals or cosmetic products, comprising:
- applying a liquid preparation as a sliding layer to an inner side of a hollow body of the packaging, the preparation comprising:
- a reactive silicone system for forming a silicone network of the sliding layer;
- a catalyst for catalyzing a cross-linking reaction of the reactive silicone system;
- at least one unreactive silicone oil;
- and
- at least one diluent comprising a silicon-containing compound, a content of the at least one diluent in the preparation amounting to more than 45 percent by weight and less than 95 percent by weight in the preparation;
- and
- initiating a reaction of the components of the preparation to form the silicone network and obtain a solidified sliding layer.
A packaging for pharmaceuticals or cosmetic products, comprising:
- a cylindrical hollow body that is coated on an inner side with a sliding layer, the sliding layer having a silicone network in which a silicone oil is incorporated, the hollow body being configured such that a stopper is insertable into the hollow body and a coefficient of static friction of the stopper, inserted into the hollow body, on the sliding layer is at most 20% greater than an average coefficient of sliding friction.
Dependencies are inferred from the claim text.