Scrubber
AssigneeScrub Daddy, Inc.
InventorsAaron C. Krause, John O'Brien
Life of this patent
Estimating the term…
Abstract
A scrubber and methods of forming a scrubber. The scrubber may include a foamed melamine resin, a first foamed polyurethane resin, a second foamed polyurethane resin, and a binder. The scrubber can be configured to exhibit the properties of both a scrubber and an eraser, and have a density ranging from 0.01 to 0.5 grams per cm3. A method of forming the scrubber may include the following steps: mixing foamed melamine resin particles, first foamed polyurethane resin particles, and second foamed polyurethane resin particles to form a first mixture; and mixing the first mixture with a binder to form a second mixture.
Claims16
A scrubber comprising:
- foamed melamine resin particles,
- first foamed polyurethane resin particles, wherein the first foamed polyurethane resin particles are non-rigid,
- second foamed polyurethane resin particles, wherein the second foamed polyurethane resin particles are rigid, and
- a binder,
- wherein an amount of the foamed melamine resin particles is 5-25% by weight of the scrubber, an amount of the first foamed polyurethane resin particles is 15-70% by weight of the scrubber, an amount of the second foamed polyurethane resin particles is 5-25% by weight of the scrubber, and an amount of the binder is 20-60% by weight of the scrubber, and
- wherein the second foamed polyurethane resin particles have a stiffness which is 10% to 500% higher than the stiffness of the first foamed polyurethane resin particles and the foamed melamine resin particles.
A scrubber configured to exhibit the properties of both a scrubber and an eraser, the scrubber comprising:
- foamed melamine resin particles,
- first foamed polyurethane resin particles, wherein the first foamed polyurethane resin particles are non-rigid,
- second foamed polyurethane resin particles, wherein the second foamed polyurethane resin particles are rigid, and
- a binder,
- wherein the scrubber has a density ranging from 0.01 to 0.5 grams per cm3,
- wherein an amount of the foamed melamine resin particles is 5-25% by weight of the scrubber, an amount of the first foamed polyurethane resin particles is 15-70% by weight of the scrubber, an amount of the second foamed polyurethane resin particles is 5-25% by weight of the scrubber, and an amount of the binder is 20-60% by weight of the scrubber, and
- wherein the second foamed polyurethane resin particles have a stiffness which is 10% to 500% higher than the stiffness of the first foamed polyurethane resin particles and the foamed melamine resin particles.
A method of forming a scrubber, comprising:
- mixing foamed melamine resin particles, first foamed polyurethane resin particles, and second foamed polyurethane resin particles to form a first mixture, wherein the first foamed polyurethane resin particles are non-rigid, wherein the second foamed polyurethane resin particles are rigid;
- and
- mixing the first mixture with a binder to form a second mixture,
- wherein an amount of the foamed melamine resin particles is 5-25% by weight of the scrubber, an amount of the first foamed polyurethane resin particles is 15-70% by weight of the scrubber, an amount of the second foamed polyurethane resin particles is 5-25% by weight of the scrubber, and an amount of the binder is 20-60% by weight of the scrubber, and
- wherein the second foamed polyurethane resin particles have a stiffness which is 10% to 500% higher than the stiffness of the first foamed polyurethane resin particles and the foamed melamine resin particles.
Dependencies are inferred from the claim text.