Method of making microsphere adhesive
US6201042A · kind A · utility
1Cited by
3References
7Claims
0Family size
Inventors
Key dates
| Filing date | Apr 27, 1999 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Apr 27, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J11/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a method of making repositionable pressure sensitive adhesive of tacky elastomeric microspheres wherein the microspheres are polymerized and formed in an aqueous suspension which includes a surfactant, a certain amount of the surfactant is removed from the aqueous suspension after completion of polymerization of the microspheres so that a predetermined reduced amount of surfactant remains, with the result that migration of the surfactant from the adhesive is at least substantially reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.