Process for packaging solid cosmetic products inside a container

• US 9,403,298 B2
• Filed: 11/23/2011
• Issued: 08/02/2016
• Est. Priority Date: 11/26/2010
• Status: Active Grant

• Current Assignee: Intercos SPA
• Original Assignee: Color Cosmetics Srl (Intercos SPA)
• Inventors: Caprarotta, Grazia Anna, Guanziroli, Marina
• Primary Examiner(s): Gerrity, Stephen F
• Assistant Examiner(s): Jallow, Eyamindae
• Application Number:
  US13/303,472
• Publication Number:
  US 20120131886A1
• Time in Patent Office: 1,714 Days
• Field of Search: 534/73, 534/74
• US Class Current: 1/1
• CPC Class Codes: B29C 39/006 Monomers or prepolymers by reaction injection moulding B29C67/246
• CPC Class Codes: B29C 67/246 Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM] casting monomers B29C39/006, mixing construction B29B7/74
• CPC Class Codes: B29K 2083/005 LSR, i.e. liquid silicone rubbers, or derivatives thereof
• CPC Class Codes: B29L 2031/712 Containers; Packaging elements or accessories, Packages closures therefor B29L2031/56; ink or toner cartridges B29L2031/7678; squeeze tubes B29L2023/20; suitcases B29L2031/7418

Abstract

A bi-component silicone resin (6) is introduced into a container (4). A placement of at least one solid cosmetic product (5) is placed on the silicone resin (6) introduced in the container (4). The resin (6) is polymerized with consequent anchoring of the cosmetic product (5) to the container (4). The bi-component silicone resin is a modified polyvinyldimethylsiloxane-based resin consisting of two low viscosity elastomeric silicones, polyvinylmethylvinylsiloxanes and polymethylhydrogensiloxane, suitably mixed. In particular, a RTV-GEL resin or an elastomeric RTV resin is used.

Claims

1. A process for preparing a package comprising a container and at least one solid cosmetic product placed within the container comprising a plurality of blocks separated by spaces, wherein the process comprises:

introducing a bi-component silicone resin comprising a modified polyvinyldimethylsiloxane-based resin inside the container;

positioning the at least one solid cosmetic product on top of the silicone resin, the silicone resin contacting only a bottom of the at least one solid cosmetic product, wherein the positioning causes adhesion between the bottom of the at least one solid cosmetic product and the container, and the positioning leaves spaces containing only the silicone resin between the blocks of the solid cosmetic product; and

polymerizing the silicone resin to anchor the blocks of the solid cosmetic product to the container.

2. The process of claim 1, wherein the silicone resin consists of two low viscosity elastomeric silicones, a polyvinylmethylvinylsiloxane and a polymethylhydrogensiloxane, suitably mixed.

3. The process of claim 2, wherein the silicone resin is a RTV-gel resin or an elastomeric RTV resin.

4. The process of claim 1, wherein the silicone resin is colored so that the spaces that contain only the silicone resin form colored separators between the blocks.

5. The process of claim 1, wherein the blocks are of different composition.