METHODS, APPARATUS, AND CHEMICAL COMPOSITIONS FOR SELECTIVELY COATING FIBER-BASED FOOD CONTAINERS
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United States of America
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Issued Date -
Oct 31, 2024
app pub date -
Jul 10, 2024
filing date -
Jul 10, 2024
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Abstract
Methods and apparatus for vacuum forming and subsequently applying topical coatings fiber-based food containers. The slurry includes one or more of an embedded moisture barrier, vapor barrier, and oil barrier, and the topical coating comprises one or more of a vapor barrier, a moisture barrier, an oil barrier, and an oxygen barrier, for example polyvinyl alcohol, sugar alcohol, citric acid, and cellulose nanofibrils.
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International Classification(s)
- B05D:PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- B05B:SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- D21J:FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSI....
- D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....
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