Methods for manufacturing a paint roller and component parts thereof
US8142599B2 · kind B2 · utility
Inventor
Key dates
| Filing date | May 11, 2009 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | May 11, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1087
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Described is a method of making a non-porous composite cover material formed of a pile material and an adhesive layer made from polypropylene or predominantly from polypropylene. A width of the pile material is advanced, and a layer of adhesive is applied thereupon. The adhesive is allowed to set, and the width of material is longitudinally cut into strips of composite cover material. Laminated paint rollers are thereafter made by helically one or two strips of polypropylene or strips made predominantly of polypropylene about a mandrel and applying a layer of adhesive made from polypropylene or predominantly from polypropylene on the strip or strips, and applying a non-porous composite cover material. A compressive force is applied upon the outer surface of the composite cover material to urge the composite cover material, the layer of adhesive and strip or strips of thermoplastic material together against the mandrel, thereby laminating the inner surface of the composite cover material and the strip or strips together and forming a continuous product that can be cut and finished to make paint rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.