Cutting of adhesive materials with water-soluble protective layer
US11298912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Oct 5, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1495
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A pre-assembled kit of cut shapes disposed upon a peelable or repositionable adhesive by means of an affixing adhesive protected by a water-soluble coating which is solubilised either prior to and/or on application of the kit to a surface which may be moistened prior to application. When the water-soluble coating is solubilised, in whole or in part, by placing in contact with the moistened surface, it will expose and/or activate, in whole or in part, the pressure-sensitive adhesive beneath the water-soluble coating to the surface to which it is to be applied and the pre-assembled kit will become affixed to the surface. Alternatively, solubilisation of the water-soluble coating may be provided by applying water, preferably warm water, to the water-soluble coating prior to applying the pre-assembled kit to the surface. A method of producing the pre-assembled kit of cut shapes is provided. In preferred embodiments the protective water-soluble coating is substantially a formulation of poly-vinyl alcohol or polyurethane polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.