Homopolymerized epoxy-based form-in-place material
US6890964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2002 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Jan 12, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2363/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A two-component foam-in-place structural material for producing a foamed product. The first component of the system includes an epoxy-based resin preferably formulated with a physical blowing agent particulate material. The physical blowing agent core is encapsulated within a shell or skin that will change state. The second component is an acid that is capable of initiating polymerization of the resin. A reactive mixture is achieved through the combination of the first and second components wherein heat from the exothermic reaction of the epoxy component caused by the acid in turn causes the thermoplastic shell having a solvent core to soften and increase in size due to gas pressure and change in state of the shell thereby foaming the reactive mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.