patent mapping of oxygen scavengers formulation,application_group 2_120816
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Group 2:
Le Tien Dung
Nguyen Thi Nu
Duong Thi Hai HoaAugust 17, 2012
OUTLINEOUTLINE
INTRODUCTION ABOUT OXYGEN SCAVENGER SYSTEMINTRODUCTION ABOUT OXYGEN SCAVENGER SYSTEM
• They are the active packaging. • They are mainly used for food and pharmaceutical applications
• To limit the amount of oxygen available for deteriorative reactions that can lead to reduced functionality of the product
PATENT MAPPING ACCORDING TO YEARSPATENT MAPPING ACCORDING TO YEARS
PATENT MAPPING ABOUT OXYGEN SCAVENGER MANUFACTURES PATENT MAPPING ABOUT OXYGEN SCAVENGER MANUFACTURES
PATENT MAPPING PATENT MAPPING Ja
pane
se O
xyge
n-Sc
aven
ger M
anuf
actu
rers
Japa
nese
Oxy
gen-
Scav
enge
r Man
ufac
ture
rs
19771977
19781978
19791979
19801980
19861986
19881988
19931993
19871987
Mitsubishi Gas Chemical
Keplon
Oji Kako
Toppan
Toagosei Chemical Industry
Nippon Soda
Hakuyo
Finetec
Nippon Kayaku
Ueno Seiyaku
Dai Nippon
Powdertec
Ageless®
Keplon™
Tamotsu™
Freshilizer™
Vitalon™
Secule™Sansoless™
Sansocut™
Modulan™
Wonderkeep™
Oxyeater™
Sequl®
PATENT MAPPING PATENT MAPPING
Function Reacant Typical Applications
Properties Application
Absorption Speed
O2↓
Iron
Self-working
Dry; aW < 0.3; tea, nuts 4–7 days
Medium aW(aW <0.65); dried beef 1–3 day
High aW (aW >0.65); cakes, bakeries 0.5 day
Frozen; +3–25°C; raw fish 3 days at -25°C
Moisture-dependent
High aW (aW >0.85) 0.5 day
Pastas
Catecho Self-workingMedium aW(aW <0.65); nuts
High aW(aW >0.65); cakes
Classification of Oxygen Absorbers in Japan
PATENT MAPPING PATENT MAPPING
Function Reacant Typical Applications
Properties Application
Absorption Speed
O2↓ & CO2↓ Iron and calcium Self-working Roasted/ground coffee 3–8 days
O2↓ & CO2↑Ascorbic acid Self-working
Medium aW(aW >0.3 <0.5); nuts
1–4 days
Organic acidand iron
Moisture-dependent
High aW(aW>0.85); cakes
O2↓ & Ethanol ↑
Iron and ethanol on zeolite
Moisture-dependent
High aW(aW>0.85); cakes
Classification of Oxygen Absorbers in Japan
PATENT MAPPING ABOUT RAW MATERIALS PATENT MAPPING ABOUT RAW MATERIALS
RAW MATERIALS RAW MATERIALS
PolymerPolymer AdditiveAdditive
polyethylene terephthalate US006083585
polyethylene naphthalate US006083585
Nylon 6 resin US2010/0255231 A1
LLDPE; 1,2-polybutadiene US6287481 B1
EVOH, PVOH, NylonUS6288161 B1
Cellulose, viscose US20040048011
cobalt neodecanoate US6287481 B1
iron particulates (4-5um) US2010/0255231 A1
cobalt octoate US6288161 B1
zinc acetate, zinc oxidesUS6544611
manganese, magnesium US6544611
antimony oxide US6544611
Photo initiatorsPhoto initiatorsReactant Reactant
Mineral oil US 2010/0255231 A1
Maleic anhydride US6346308
Irgonox 1010 antioxidant US6610215
formaldehyde US20040048011
palladium US20040048011
OsO4 US6509436
benzophenone masterbatch US6287481 B1
PATENT MAPPING COMMERCIAL APPLICATIONSPATENT MAPPING COMMERCIAL APPLICATIONS
COMMERCIAL APPLICATIONSCOMMERCIAL APPLICATIONS
Reduced iron in sachetsReduced iron in sachets Incorporated into the core layersIncorporated into the core layers
Modified-atmosphere–packaged fresh-chilled pasta
Dry beef snacks
Precooked poultry master packs
Real bacon bits
Macadamia nuts in jars
Pepperoni chips
Fresh red meat distribution package
Bulk peanuts
Bakery goods
Regenerated collagen sausage casings
Several shelf-stable U.S. military ration items
NASA (shelf-stable tortillas)
Polyester beer, juice and ketchup bottles
Closure liners for beer bottles
A few pharmaceuticals and medical supplies
Candy
• Formula 1: US 2010/0255231 A1
FORMULATIONFORMULATION
Components Ratio for weight (%) Function Trade name and
Supplier
Iron particulates (4-5 um)
5 or 20 FreshBlend (oxygen scavenger)
Sodium bisulfate and sodium chloride composite powder
Nylon 6 resin 95 or 80 Custom Resins Nylene 3411
Mineral oil 0.2 wt % Surfactan
The extruder was set at 2500C for all the heating zones and a die temperature at 2600C
The extruded strands were air cooled.Or optionally water cooled prior to pelletizing.
• Formula 2: US 6682791
FORMULATIONFORMULATION
Layers Thickness Component
A 0.5 mils 20% LLDPE*: 80% LDPE** blend
B 0.2 mils low rate oxygen scavenging material of 9:1 ratio of oxygen scavenging polymer to metal catalyst
C 2.5 mils 20% LLDPE : 80% LDPE blend
D 0.1 mils low rate oxygen scavenging material of 9:1 ratio of oxygen scavenging polymer to metal catalyst
E 0.5 mils 20% LLDPE : 80% LDPE blend
*linear low density polyethylene
**low density polyethylene
• Formula 3: US 6287481 B1
FORMULATIONFORMULATION
Components Ratio for weight (%) Function Trade name and
Supplier
LLDPE The outer layers of the film
Dowlex® 3010, Dow Chemical
1,2-polybutadiene 68% The inner oxygen scavenging layer
B830, JSR (Japan Synthetic Rubber)
EPDM rubber 12% The inner oxygen scavenging layer
Vistalon® 3708, Exxon
EVA-9 (ethylene/vinyl acetate copolymer) 20% The inner oxygen
scavenging layer Exxon
cobalt neodecanoate Reactant
benzophenone masterbatch Photoinitiator
A three-layer oxygen scavenging film was prepared by a flat coextrusion process. The final concentration of cobalt in the scavenging layer of the film was 540 ppm as cobalt metal, and the final concentration of benzophienone was 0 5%
• Formula 4: US 6287481 B1
FORMULATIONFORMULATION
Components Ratio for weight (%) Function Trade name and Supplier
Saran coated PET//EVA/OSL/LLDPE
0.48//1.2/0.5/0.3 mil)
Ethylene/vinyl acetate copolymer layer
Rexene PE1375
SBS 50% The OSL layer Vector®8508 from Dexco
LDPE 40% The OSL layer Chevron PE1017
EVA 8.54% The OSL layer Quantum
cobalt neodecanoate 0.90% Reactant Ten-Cem® from OMG. Inc.
benzophenone 0.5% Photoinitiator
CaO 0.050% The OSL layer
stabilizer 0.01% The OSL layer lrganox®) 1076 from Ciba-Geigy
CONCLUSIONCONCLUSION
• Oxygen scavengers is active packaging which have two types and
mechanisms of action• Iron-Based Systems• Oxygen Scavenging Polymer Materials.
• They are mainly used for food and pharmaceutical applications• They are the most patented of all active packaging technologies (with at
least 50 patents through 1989 and 20 issued from 1990 to 1994)• They are important for our life
• The economics• Health• Environment
REFERENCESREFERENCES
• Brody, A. L.; Kline, L. R. and Strupinsky, E. R. Active packaging for food applications.
Originally Published by Technomic Published [Online], 2001, 222.
• Cook, P. 1999. “Stealth Scavenging Systems: A Remarkable Breakthrough
Technology.”Proceedings of “OxygenAbsorbers: 2000 and Beyond” Conference,
Chicago,Illi-nois,George O. Schroeder Associates,Inc.,Appleton,Wisconsin. June.
• Rooney, M. L. 1993a. “Oxygen scavenging compositions.” PCT Patent
Application PCT/AU93/00598.
• Valyi, Emery. 1977. “Composite materials.” U.S. Patent 4,048,361. September 13.
• http://www.freepatentsonline.com/result.html?
p=1&edit_alert=&srch=xprtsrch&query_txt=oxygen+scavenger+packaging&uspat=
on&date_range=last20&stemming=on&sort=relevance&search=Search
Thank you!
Mail: da08hhb@gmail.com
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