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US 2024/0074573 A1Published application
Product with bristles which can be easily recycled
AssigneeEvonik Operation GmbH
InventorsFlorian HERMES, Uwe Kannengießer, Alexander Richter, Kerstin Wieder, Johannes-Florian Krampe
Life of this patent
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Abstract
Brushware contains the constituents of monofilaments or bristles, and at least one head, handle, and/or neck. The constituents contain or are made of polymers from the same polymer class selected from among polymers and/or copolymers, and wherein the polymer class is selected from polyamides or polyesters.
Claims8
1:
- Brushware, comprising the constituents of:
- monofilaments or bristles, and
- at least one head, handle, and/or neck,
- wherein
- the constituents comprise polymers and/or copolymers from the same polymer class, and wherein the polymer class is selected from the group consisting of polyamides and polyesters.
2 more elements
2:
- The brushware according to claim 1, wherein the at least one head, handle, and/or neck has at least one grip element, and the at least one grip element comprises polymers from the same polymer class as the constituents.
3:
- The brushware according to claim 1, wherein the constituents consist of polymers of the same polymer class.
4:
- The brushware according to claim 1, wherein the polymer or copolymer is selected from polymers derived from the monomers selected from the group consisting of hexamethylenediamine/azelaic acid, hexamethylenediamine/dodecanedioic acid, 11-aminoundecanoic acid, ω-aminododecanoic acid, laurolactam, tetramethylenediamine/adipic acid, dodecanediamine/dodecanedioic acid, caprolactam/laurolactam, hexamethylenediamine/decanedioic acid, and 1,10-decamethylenediamine/1,10-decanedioic acid.
5:
- The brushware according to claim 4, wherein the polymer or copolymer is a polymer derived from monomers selected from the group consisting of laurolactam, 11-aminoundecanoic acid, ω-aminododecanoic acid, dodecanediamine/dodecanedioic acid, and 1,10-decamethylenediamine/1,10-decanedioic acid.
6:
- The brushware according to claim 1, wherein the polymer is selected from the group consisting of polyethylene terephthalate (PET), acid-modified polyethylene terephthalate (PETA), glycol-modified polyethylene terephthalate (PETG), polybutylene terephthalate (PBT), acid-modified polycyclohexylenedimethylene terephthalate (PCT-A) and glycol-modified polycyclohexylenedimethylene terephthalate (PCT-G).
7:
- The brushware according to claim 1, wherein the brushware is a toothbrush.
8:
- The brushware according to claim 5, wherein the monomers are selected from the group consisting of 11-aminoundecanoic acid, ω-aminododecanoic acid, and laurolactam.