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EP0281701A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Synthetic in-mold label

Assignee: Multi Color Corp
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Filing: 1987-06-25
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Granted: —
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Expires: 2007-06-25
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Abstract

Abstract An in-mold label for use with a blow molded high density polyethylene container or the like formed from a thin sheet of multicellular thermoplastic film composed of a biaxially extruded polyethylene/polystyrene copolymer. The in-mold label resists curling, wrinkling and crazing, has thermodynamic properties similar to those of the polyethylene container, and may be recycled along with the container.

Inventors

  • 👤 John C. Court
  • 👤 Theodore R. Zeiter

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 10:26
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/04; B; B29; B29C; B29C49/00; B29C49/24; B29C2049/2412; B29C2049/2414; B29C2049/24302; B29C2049/24304

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 104 words
A method of producing an in-mold labeled plastic container comprising: supplying a sheet of multicellular thermoplastic film composed of a biaxially extruded polyethylene/polystyrene copolymer, said sheet being resistant to wrinkling, curling and crazing and having a surface configured to accept high quality printing; printing indicia on at least one surface of said sheet; cutting said sheet into a plurality of individual labels, each label bearing printed indicia; positioning one of said labels in a mold; blow molding a HDPE container within said mold such that said label adheres to the outer surface of the blow molded container; and removing said container from the mold.
Claim 2
Independent Claim 104 words
A method of producing an in-mold labeled plastic container comprising: supplying a sheet of multicellular thermoplastic film composed of a biaxially extruded polyethylene/polystyrene copolymer, said sheet being resistant to wrinkling, curling and crazing and having a surface configured to accept high quality printing; printing indicia on at least one surface of said sheet; cutting said sheet into a plurality of individual labels, each label bearing printed indicia; positioning one of said labels in a mold; blow molding a HDPE container within said mold such that said label adheres to the outer surface of the blow molded container; and removing said container from the mold.
Claim 3
Dependent Claim 31 words
The method according to claim 1 including the step of providing said film with an acrylic bound china clay calcium carbonate pigmented coating for improving the printing characteristics of the sheet.
Claim 4
Dependent Claim 31 words
The method according to claim 2 including the step of applying a heat activated adhesive to one surface of the sheet to improve the adherence of the label to the container.
Claim 5
Dependent Claim 33 words
In a high density polyethylene container of the type produced by blow molding, the improvement in combination therewith comprising a multicellular thermoplastic film in-mold label adhered to the outer surface of said container.
Claim 6
Dependent Claim 33 words
In a high density polyethylene container of the type produced by blow molding, the improvement in combination therewith comprising a multicellular thermoplastic film in-mold label adhered to the outer surface of said container.
Claim 7
Dependent Claim 18 words
The container according to claim 4 wherein said thermoplastic film comprises a thin biaxially extruded polyethylene/polystyrene copolymer sheet.
Claim 8
Dependent Claim 27 words
The container according to claim 5 wherein said sheet includes an acrylic bound china clay calcium carbonate pigmented coating for improving the printing characteristics of the label.
Claim 9
Dependent Claim 23 words
The container according to claim 5 wherein said film has a density of about 0.77g/cm² and a tensile strength of about 36,000 kN/m².
Claim 10
Dependent Claim 22 words
The container according to claim 6 including a heat activated adhesive applied to the label for adhering the label to the container.

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