Alan Stall - Naperville IL, US Carl Frauenpreis - Wallingford CT, US Tatyana Samoylova - Lowell MA, US Hoseok Choung - Middletown CT, US Vladimir Sinani - Branford CT, US
Assignee:
Sealed Air Corporation (US) - Elmwood Park NJ
International Classification:
B02C 19/00
US Classification:
241 21, 241 23, 2412601
Abstract:
An apparatus for, and method of, mixing a molten composition are provided. The apparatus comprises a rotor with flow restrictors supported on its surface and supported within a bore of a casing. The mixer generates at least 100 modulating events as the molten composition flows over the flow restrictors to form a modulated composition.
Permeable Polymeric Films And Methods Of Making Same
Alan D. Stall - Naperville IL, US Carl Frauenpreis - Wallingford CT, US Vladimir A. Sinani - Branford CT, US Tom L. Hicks - Port Jefferson NY, US Tatyana Y. Samoylova - Lowell MA, US
International Classification:
B32B 1/08 B29D 7/01 B32B 3/00
US Classification:
428 352, 428220, 264165
Abstract:
A method of making a film and the resulting film are disclosed. A matrix polymer comprising at least 20 wt. % nylon-6 is combined with moisture-absorbing particles and mixed in an extensional flow mixer to disperse the moisture-absorbing particles in the matrix polymer. The mixed composition is formed into a film comprising at least 20 wt. % matrix polymer and 1 wt. % moisture-absorbing particles. The film is oriented in at least one direction by a ratio of at least 1.2:1 to provide an unperforated, oriented film having a thickness of at least 20 microns and a water transmission rate of at least 24 g/m2/hr. The film is useful in food casing applications.
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