An aerosol is a suspension of fine solid particles or liquid droplets in a gas.
The criteria for packaging of aerosols involves speed, simplicity, spray projection,
cleanliness, freshness. Aerosol comes in metal containers (tin, aluminum) but
now a days metal containers are replaced with plastic containers as it provides
advantages like light weight (lower storage and transport costs, improved ergonomics
and user friendliness), increased safety (no highly flammable propellants, no
poisonous gases that might be inhaled) , environmentally friendly ( no propellants
and no volatile organic hydrocarbons, less household chemical waste and possible
reuse, transparency , no rust ,compatible with current filling lines, it can be
decorated by new ways like shrink labels etc. It provides benefits for consumers
in having different designs, texture and touch appeal. It provides secondary advantages
which are not decisive at the time of purchase) like shelf-life, accuracy of the
dose delivered, ease of use while carrying. These attributes give the plastic
aerosol market a radiant future, particularly in the case of non-flammable, low-pressure
products. PET is used as a major raw material as it is good barrier, cheap, pressure-resistant
material, it has less energy-intensive production and it has new artwork possibilities
like sleeving , labelling etc. Plastic aerosol cans fulfils the same requirements
and have the same maximum brimful volume as metal cans (1000 ml) and can be filled
the same way as metal cans (maximum pressures of 13.5 bar at 55°C, adapted
in US 160 psig at 130°F and Canada 1105 kPa=11.03 bar at 55°C).
Dolcera report focuses on finding the key innovators and the industry ecosystem
through relevant patents, clinical trials and university data encompassing the
plastic container for holding aerosol content under pressure. Mostly includes
a one-piece integrally molded plastic body having a base, a sidewall and a neck
finish. A pressure container having an extruded plastic body portion is described
mostly in relevant patents. The keywords used in the search were obtained after
an extensive study of relevant patents. The class codes for the search were
obtained from the control patents and more class codes with manual search of
classification index. The report highlights year-wise patent activity (trend
line) along with the key industrial players in the field. Patents are categorized
on the basis of patent focus- aerosol container whose body is made up of plastic
material (example PET, PEN etc.). The categorized patents were further analyzed
to determine the key players under each category. A comprehensible result in
the form of Dolcera dashboard has been given. Dashboard links the companies
in each category to their patents, hence making an interactive platform for
analysis. Furthermore, patents have been mapped to commercially available products
produced by the respective assignees and other licensees.
Introduction
Aerosol is used by a wide range of industries: health, cosmetics, food, automobile
and household chemicals. Plastic aerosol containers provide numerous benefits
for consumers: lightweight, lower storage and transportation costs, design,
texture, transparency, user friendliness and possible reuse. They are suitable
for non-flammable, low pressure products. Plastic aerosol provides significant
environmental benefits to metal packaging as there is no volatile organic carbon.
The Keltec dispensing systems convert a liquid into foam by using pressurized
air instead of a propellant. The new shapes and the artwork possibilities make
them very attractive for the packaging of new products. The European aerosol
federation (FEA) has developed new requirements for plastic aerosols. There
are tests for the empty container and filled aerosol. Graham packaging has developed
a PEN aerosol for a body hygiene product in 2002 and have recently developed
a PET product because PET is cheap and is a pressure resistant material. The
main advantage of a plastic aerosol are no rust, no BPA (bisphenol-A), easier
working, compatibility with current filling lines, and new ways of decorating
the product such as shrink labels.
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