TW200516175A - Tarnish inhibiting composition and article containing it - Google Patents

Tarnish inhibiting composition and article containing it

Info

Publication number
TW200516175A
TW200516175A TW093115399A TW93115399A TW200516175A TW 200516175 A TW200516175 A TW 200516175A TW 093115399 A TW093115399 A TW 093115399A TW 93115399 A TW93115399 A TW 93115399A TW 200516175 A TW200516175 A TW 200516175A
Authority
TW
Taiwan
Prior art keywords
silver
polymer
solid
film
stored
Prior art date
Application number
TW093115399A
Other languages
Chinese (zh)
Other versions
TWI347374B (en
Inventor
Donald Aloysius Kubik
Boris Varshal
Efim Ya Lyublinski
Barbara Ann Nygaard
Original Assignee
Northern Technologies Int
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/453,303 external-priority patent/US20030207974A1/en
Priority claimed from US10/676,760 external-priority patent/US7261839B2/en
Application filed by Northern Technologies Int filed Critical Northern Technologies Int
Publication of TW200516175A publication Critical patent/TW200516175A/en
Application granted granted Critical
Publication of TWI347374B publication Critical patent/TWI347374B/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Landscapes

  • Packages (AREA)

Abstract

An effective tarnish inhibiting ("TI") polymer composition including a scavenger for hydrogen sulfide optionally in the presence of an acid gas such as sulfur dioxide, provides excellent protection against tarnishing of the lustrous surfaces of a silver object. When the composition is thermoformed into a box-like container or extruded as film which contains uniformly dispersed solid micron-sized particles of the scavenger chosen from zinc oxide and a silicate of an alkali metal in an amount no greater than 5% by weight of the polymer, it is transparent so that the condition of the stored silver may be assessed. A solid inert adjuvant may be added. All solid particles in the material have a primary particle size smaller than 53 μm which makes it possible to obtain the uniform dispersion. A silver object may be wrapped in the film, or stored in a sealed box so that the solid particles in the polymer are not coated on the surfaces of the silver object.
TW093115399A 2002-01-22 2004-05-28 Tarnish inhibiting composition and article containing it TWI347374B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US5403202A 2002-01-22 2002-01-22
US10/453,303 US20030207974A1 (en) 2002-01-22 2003-06-03 Tarnish inhibiting formula and tarnish inhibiting articles using same
US10/676,760 US7261839B2 (en) 2002-01-22 2003-10-01 Tarnish inhibiting composition and article containing it

Publications (2)

Publication Number Publication Date
TW200516175A true TW200516175A (en) 2005-05-16
TWI347374B TWI347374B (en) 2011-08-21

Family

ID=47288970

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093115399A TWI347374B (en) 2002-01-22 2004-05-28 Tarnish inhibiting composition and article containing it

Country Status (1)

Country Link
TW (1) TWI347374B (en)

Also Published As

Publication number Publication date
TWI347374B (en) 2011-08-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees