Water vapor-permeable, pressure-sensitive adhesives
US6558790B1 · kind B1 · utility
23Cited by
21References
23Claims
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Key dates
| Filing date | Nov 30, 1999 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Nov 30, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2891
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Water-permeable, pressure-sensitive adhesives and adhesive constructions are characterized by a MVTR of at least 1,900 g/m2/day and low adhesive edge lift, even after 25 kGy gamma irradiation. The copolymers are formed from a plurality of acrylic monomers, preferably butyl acrylate, 2-ethylhexyl acrylate, hydroxyethyl acrylate, and optionally N-vinyl pyrrolidone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.