Methods for manufacturing a paint roller and component parts thereof
US8308884B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 22, 2012 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Feb 22, 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 paint roller using an adhesive made from a compound of polypropylene and calcium carbonate having between 5% and 66% calcium carbonate by weight. 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. Described are methods of making a paint roller using a composite cover material made from a compound of polypropylene and calcium carbonate having between 5% and 50% 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.