Thermally expandable sheet and method of manufacturing thermally expandable sheet
US11648714B2 · kind B2 · utility
0Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2019 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Mar 15, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A thermally expandable sheet according to the present invention includes a stress buffer layer provided on one surface of a base material and having an elastic property, a thermal expansion layer provided on the stress buffer layer and containing a first thermally expandable material that expands according to heat and a first binder, and a cover layer provided on the thermal expansion layer and having an elastic property.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.