Flavored dental floss and process
US5357990A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1993 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Mar 10, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C15/041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process for making a shaped, highly flavored floss and the floss product of that process. The process comprises coating a multi-filament thread with a first liquid or semi-solid wax composition having a high melting temperature and cooling the coating to a temperature at which the first wax composition has become a solid to form a shaped thread. The thread is optionally reshaped. The shaped thread, carrying the primary coating, is coated with a lower melting liquid or semi-solid wax composition having a temperature less then the melting point of the first coating without disrupting the first wax composition of the shaped configuration of the thread. The lower melting wax composition contains volatile flavoring oil. Preferably, the inner wax composition is a microcrystalline wax and the outer wax composition comprises waxy a major portion of a polyethylene glycol having an average molecular weight at least 7000 daltons and an amount of a lower weight material such as an a liquid polyethylene glycol or an emulsifying wax to provide a coating which is liquid at a temperature of from 50.degree. to 65.degree. C. and which is solid at temperatures below about 50.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.