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US 11,325,774 B2Granted
Recyclable aerosol dispensers
AssigneeThe Procter & Gamble Company
InventorsJennifer Elizabeth Hosmer, Robert Earl Magness
Life of this patent
Estimating the term…
Abstract
A polymeric aerosol dispenser that is recyclable. The recyclable polymeric aerosol dispenser including all polymeric components. These components being selectively either fixedly joined or separably joined based on the material composition of the component. Further, components may be selected for their density and, thus, their ability to float or sink during the recycling process. The recyclable polymeric aerosol dispenser is designed to minimize its impact on the PET recycling stream and to align with industry recyclability guidelines.
Claims21
A method for recycling a polymeric aerosol dispenser for dispensing a product, the method comprising:
- providing a polymeric aerosol dispenser, the dispenser comprising:
- a container comprising a closed end bottom and a neck longitudinally opposed to the closed end bottom, wherein the neck defines an opening, wherein the container comprises at least 90% by weight polyethylene terephthalate;
- a valve assembly disposed in the container, wherein the valve assembly comprises:
- a valve body fixedly joined to a portion of the container and extending about a longitudinal axis, wherein the valve body comprises an outer surface and an inner passageway extending about the longitudinal axis, and wherein the valve body comprises at least 90% polyethylene terephthalate;
- a valve stem extending through the inner passageway of the valve body, and wherein the valve stem is slidably engaged with a portion of the valve body;
- a valve seal separably joined to at least one of the valve body and the valve stem, wherein the valve seal has a valve seal density less than 1.0 g/cm3, wherein the valve seal comprises a non-cross linked material, and wherein the valve seal is configured to operatively engage at least one of the valve body and the valve stem to form a seal therebetween;
- and
- a resilient member operatively engaged with the valve stem, wherein the resilient member has a resilient member density less than 1.0 g/cm3;
- and
- a product delivery device disposed within the container;
- recycling the polymeric aerosol dispenser using a benchmark process, wherein the benchmark process produces an innovation plaque;
- providing a control article, wherein the control article is at least 90% by weight polyethylene terephthalate;
- recycling the control article using the benchmark process, wherein the benchmark process produced a control plaque;
- comparing the innovation plaque and the control plaque, wherein a Δb* is less than 1.0 between the innovation plaque and the control plaque.
11 more elements
A method for recycling a polymeric aerosol dispenser for dispensing a product, the method comprising:
- providing a polymeric aerosol dispenser, the dispenser comprising:
- a container comprising a closed end bottom and a neck longitudinally opposed to the closed end bottom, wherein the neck defines an opening, wherein the container comprises at least 90% by weight polyethylene terephthalate;
- a valve assembly disposed in the container, wherein the valve assembly comprises:
- a valve body fixedly joined to a portion of the container and extending about a longitudinal axis, wherein the valve body comprises an outer surface and an inner passageway extending about the longitudinal axis, and wherein the valve body comprises at least 90% polyethylene terephthalate;
- a valve stem extending through the inner passageway of the valve body, and wherein the valve stem is slidably engaged with a portion of the valve body;
- a valve seal separably joined to at least one of the valve body and the valve stem, wherein the valve seal has a valve seal density less than 1.0 g/cm3, wherein the valve seal comprises a non-cross linked material, and wherein the valve seal is configured to operatively engage at least one of the valve body and the valve stem to form a seal therebetween;
- and
- a resilient member operatively engaged with the valve stem, wherein the resilient member has a resilient member density less than 1.0 g/cm3;
- and
- a product delivery device disposed within the container;
- recycling the polymeric aerosol dispenser using a benchmark process, wherein the benchmark process produces an innovation plaque;
- providing a control article, wherein the control article is at least 90% by weight polyethylene terephthalate;
- recycling the control article using the benchmark process, wherein the benchmark process produced a control plaque;
- comparing the innovation plaque and the control plaque, wherein a Δb* is less than 0.75 between the innovation plaque and the control plaque.
11 more elements
Dependencies are inferred from the claim text.