Process for making masking tape and apparatus
US6136371A · kind A · utility
4Cited by
7References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2000 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Feb 10, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2400/283
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method and apparatus for making masking tape is provided. A hot melt or thermoplastic adhesive having no added foaming agents, blowing agents, or surfactants is applied to a paper backing having a moisture content, wherein the adhesive is at a temperature near or below the boiling point of water. The adhesive-coated tape is then advanced to a heating device and heat is applied thereto such that the moisture present in the tape is vaporized and dispersed throughout the adhesive to give the adhesive a foam-like quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.