Methods for manufacturing a paint roller and component parts thereof
US8771451B2 · kind B2 · utility
22Cited by
2References
18Claims
0Family size
Inventor
Key dates
| Filing date | Mar 27, 2012 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Mar 27, 2032 |
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 thermoplastic core paint roller using a composite cover material having a backing made from a compound comprising a polypropylene-based elastomer and calcium carbonate having between 5% and 50% calcium carbonate by weight. One or various compounds of polypropylene and calcium carbonate having between 5% and 66% calcium carbonate by weight may be used to form portions of one or multiple components that make up the paint roller, including, for example, the thermoplastic strips and/or the adhesives. The materials can be assembled in a continuous manufacturing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.