Methods for manufacturing a paint roller and component parts thereof with strips of compounded material
US8764928B2 · kind B2 · utility
21Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2011 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Apr 6, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/328
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Described are methods of making a paint roller using preformed strips or core material made from a compound of polypropylene and calcium carbonate having between 5% and 66% calcium carbonate by weight. One or various compounds may be used to form portions of one or multiple components that make up the paint roller, including, for example, the thermoplastic strips, adhesives and/or the backing of a composite cover material. The materials can be assembled in a continuous manufacturing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.