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US 2022/0403130 A1Published application
Foam Abrasive and Method for Producing Same
AssigneeRobert Bosch GmbH
InventorsRuben Drost, Johannes Huber, Steven Lindsay
Life of this patent
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Abstract
A foam abrasive for grinding a workpiece includes a main part made of foam, in particular polyurethane foam, and abrasive grains which are fixed to at least one surface of the foam abrasive via a base binder made of thermoplastic polyurethane. The abrasive grains are covered with a cover binder.
Claims18
A foam abrasive for abrasive working of a workpiece, comprising:
- a main body comprising foam;
- abrasive grains affixed on at least one surface of the foam abrasive by a make coat of thermoplastic polyurethane;
- and
- a size coat covering the abrasive grains.
1 more element
A method for producing a foam abrasive, comprising:
- coating a surface of a main body, which comprises foam, with a make coat of thermoplastic polyurethane;
- applying abrasive grains to the surface and affixing the abrasive grains via the make coat;
- applying a size coat in such a wav that the size coat covers the abrasive grains and the make coat.
Dependencies are inferred from the claim text.