Fragrance containing fiber
US6207274A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1999 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Dec 21, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2927
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Described is a fragrance-containing and fragrance-emitting polymeric fiber which optionally contains (i) at least one antimicrobial agent; and (ii) at least one compatible coloring material or color-forming material which is useful in the ascertainment of the exhaustion or substantial reduction of fragrance, produced by either (i) a processing comprising the steps of: PA1 (a) co-extruding fragrance and optionally (i) antimicrobial agent and/or (ii) at least one compatible coloring material or color-forming material which is useful for ascertainment of the exhaustion or substantial reduction of fragrance with a thermoplastic polymer to form an extrudate; PA1 (b) forming fragrance and (optionally (i) antimicrobial agent and/or (ii) at least one compatible coloring material or color-forming material which is useful for ascertainment of the exhaustion or substantial reduction of fragrance agent)-emitting particles which may or may not be foamed from the extrudate; and PA1 (c) extruding a fiber of from about 3 denier up to about 60 denier from the thus-formed particles; or (ii) a process comprising the steps of: PA1 (a) forming fragrance-emitting particles, foamed or not foamed, from a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.