Patent · US Active

Method of making an elastic film, in particular for a hygienic article

US8648139B2 · kind B2 · utility

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5References
5Claims
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Assignee

Inventor

Key dates

Filing dateDec 16, 2010
Grant dateFeb 11, 2014
Priority date
Expiry dateDec 16, 2030

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L53/02
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

An elastic film for a hygienic article is made by first premixing polymer components to form a polymer composite that contains styrene block copolymers and then extruding the polymer composite to make at least one layer. During the premixing or the extruding zeolites are added having pores of a size larger than 2.5 Angstrom and smaller than 5.5 Angstrom.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.