Radiation curable pressure sensitive adhesives
US5900473A · kind A · utility
33Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1998 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Jun 2, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2170/40
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention discloses radiation curable pressure-sensitive adhesives comprising the reaction product of a blend of at least two hydroxy polyesters having different Tgs, and at least one prepolymer functionalized with (Meth) acrylates, isocyanates and mixtures thereof. The present invention further discloses a blend of at least two hydroxy polyesters wherein at least one of the hydroxy polyesters has a Tg of less than -35.degree. C., and at least one of the other hydroxy polyesters has a Tg of greater than about -35.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.