Paper making and fiber liberation – Processes and products – Multi-layer waterlaid webs or sheets
Reexamination Certificate
2007-08-21
2007-08-21
Griffin, Steven P. (Department: 1731)
Paper making and fiber liberation
Processes and products
Multi-layer waterlaid webs or sheets
C162S158000, C162S164100, C162S168100, C526S304000, C526S307500, C526S328500
Reexamination Certificate
active
10958016
ABSTRACT:
Temporary wet strength additives, more particularly, temporary wet strength additives comprising a polymer backbone, wherein the polymer backbone comprises a co-crosslinking monomeric unit, preferably a reversible co-crosslinking monomeric unit, especially in the presence of water, a homo-crosslinking monomeric units and a cationic monomeric unit, fibrous structures comprising such temporary wet strength additives, sanitary tissue products comprising such fibrous structures and processes for making such fibrous structures and/or such sanitary tissue product. Such fibrous structures and sanitary tissue products exhibit high initial wet tensile strength and improved flushability and/or reduced-clogging properties.
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Barcus Robert Lee
Kelly Stephen Robert
Leimbach Angela Marie
Mohammadi Khosrow Parviz
Cook C. Brant
Cordray Dennis R.
Griffin Steven P.
The Procter & Gamble & Company
Weirich David M.
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