Tacky base material with powder thereon
US6811864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2002 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Oct 2, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A synthetic material comprisesa base material providing at least one tacky surface that is tacky at a temperature of less than about 80° C.; anda powder layered upon the base material which has a substantially non-tacky surface at a temperature of up to about 40° C. and exhibits adhesiveness at a temperature of greater than 120° C. The powder includes one or more correspondence components such as an epoxy resin which is either i) substantially identical to a component of the base material, or ii) the monomer or oligomer configuration of the correspondence component is substantially identical to a component of the base material but may have a greater molecular weight or longer polymer chain structure, or iii) is insubstatantially different from a component of the base material (e.g. has the same characteristics and a similar structure but a higher molecular weight).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.