Back to results
US 11,241,907 B2Granted
Eraser
AssigneeStaedtler Mars GmbH & Co. KG
InventorAndreas Thies
Life of this patent
Estimating the term…
Abstract
An eraser for removing strokes of writing, painting and/or drawing implements, including at least one binder and at least one plasticizer, wherein the at least one plasticizer is a polyol ester.
Claims7
An eraser for removing marks by writing, painting and/or drawing implements, comprising:
- at least one binder, wherein the binder is at least one of the group consisting of:
- polyamide (PA), polyurethane (PU), polyolefins (PO), rubber, polyvinyl acetate (PVAc), and mixtures thereof;
- and, at least one plasticizer, wherein the at least one plasticizer is formed by a polyol ester.
An eraser for removing marks by writing, painting and/or drawing implements, comprising:
- PVC as binder
- 20-60% by weight
- Polyol ester as plasticizer
- 20-60% by weight
- Organic Fillers
- 0-60% by weight
- Other additives
- 0-10% by weight,
- wherein the organic fillers are wood flour and/or products derived therefrom.
6 more elements
Dependencies are inferred from the claim text.