Sealant packaging and method
US11787612B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2020 |
| Grant date | Oct 17, 2023 |
| Priority date | — |
| Expiry date | Dec 8, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C37/0075
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An improved sealant packaging and method for use with sealing joints and cracks in pavement and parking lots is provided. Liquid sealant material is poured by volume into a container draped with a sheet. Container is cooled so that the sealant becomes a solid block, with the sheet adhered to the sides of the sealant block such that the sheet forms a container for the sealant. The sheet also acts a release liner for easily removing the sealant block from the container. Two or more contained blocks are stacked together, forming a package of two or more blocks self-sealed by sheets. When the package is placed in a melting kettle, heat migrates through the spaces between the individual sealant blocks and allows the smaller sealant blocks to melt quickly and evenly. Sheet and film melt with sealant material and are incorporated therein to form the final sealant product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.