Pressure-sensitive adhesive tape
US6254954A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1999 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Aug 26, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/287
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a pressure-sensitive adhesive tape with improved room temperature handleability comprising an adhesive layer with at least one exposed surface and optionally a backing, wherein the pressure-sensitive adhesive layer comprises an epoxy/polyester based pressure sensitive adhesive which is crosslinkable upon exposure to actinic or e-beam irradiation and optionally heat, and comprises PA0 (i) 30-80% by weight of a polyester component comprising one or more amorphous polyesters compounds, PA0 (ii) 20-70% by weight of an epoxy component comprising one or more epoxy resins and/or monomers, PA0 (iii) 0-50% by weight of a hydroxyl-functional component containing one or more hydroxyl-containing compounds having a hydroxyl functionality of at least 1, and PA0 (iv) an effective amount of a photoinitiator component for crosslinking the pressure-sensitive adhesive, whereby the weight percentages refer to the total mass of components (i)-(iv) and add up to 100 wt. %, and which exhibits a holding power of at least 5 min.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.