Highly absorbent products and process of making such products
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Dec 12, 2006
Grant Date -
Sep 18, 2003
app pub date -
Feb 4, 2003
filing date -
Oct 25, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention provides processes for coating the surface of substrates such as a sheet, film, foam, fiber, etc., with a curable liquid resin or solution of curable resin, then in one embodiment, stably attaching a superabsorbent polymeric powder to such resin, and then curing the resin to form a coated superabsorbent product. Such substrates may include polymeric materials. Other process embodiments utilizing curable and thermoplastic resinous powders may be used instead of curable liquid resins and resulting products are included in the invention. The coated product has reduced particle agglomeration and particle loss due to the curing or melting steps. The thin, superabsorbent powder adhered, films may be used as an absorbent core for a wide variety of absorbent products. The product can be interposed between sheets to form disposable absorbent products such as diapers, bandages, water and nutrient retention elements, erosion control devices and elements thereof, etc. or used on one side to form cleaning products.
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