Hot melt wetness indicator
US5342861A · kind A · utility
53Cited by
14References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1993 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Oct 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2746
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A wetness indicating hot melt adhesive composition comprising: PA1 a) a graft copolymer of PA2 i. about 40-80% by weight of vinyl monomer; and PA2 ii. about 20-60% by weight of water-soluble polyalkylene oxide polymer having a molecular weight of about 3,000-20,000 and a polymerized ethylene oxide content of at least 50% by weight; and PA1 b) an effective amount of a wetness indicating agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.