High temperature paper
US7112259B2 · kind B2 · utility
0Cited by
12References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2003 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Jul 16, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/698
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Provided is a paper structure comprised of two outside layers and at least one inside layer. The two outside layers are comprised of substantially cellulosic pulp fiber, and the inside layer is comprised of a high temperature fiber and a polymeric binder, and preferably cellulosic pulp fiber. In a preferred embodiment, the structure comprises at least three inside layers, all comprised of cellulosic pulp fiber, high temperature fiber and a polymeric binder. The resulting paper structure finds particular use as a high temperature transformer paper in the manufacture of transformers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.