Substituted pyrrolidone plasticized thermoplastic resin useful as a plastic processing equipment cleaning compound
US6001188A · kind A · utility
10Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1998 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Mar 3, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2987
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a plastics processing equipment cleaning compound comprising a hard outer shell made from a thermoplastic resin and a soft inner core containing a substituted pyrrolidone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.