Packaging having sliding layer and method for pharmaceutical and cosmetic substances and preparation for producing same
AssigneeSCHOTT Pharma AG & Co. KGaA
InventorsStephanie Mangold, Tamara Sweeck
Life of this patent
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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.
Claims19
A preparation, comprising:
- a reactive silicone system comprising at least one polysiloxane having cross-linkable groups for forming a silicone network of a 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 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, the sliding layer being formed by reaction of a preparation, the preparation comprising:
- a reactive silicone system for forming the 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.
Dependencies are inferred from the claim text.