Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2005-10-04
2005-10-04
Lipman, Bernard (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S027000, C524S028000, C524S032000, C524S035000, C524S043000, C524S045000, C524S047000, C524S055000, C524S056000, C524S057000, C524S186000, C524S251000, C524S394000, C524S401000, C524S424000, C524S425000, C524S430000, C524S433000, C524S436000, C524S502000, C524S503000
Reexamination Certificate
active
06951895
ABSTRACT:
Disclosed is an absorbent composition comprising each of an acidic and a basic material, wherein the absorbent composition exhibits desirable absorbent properties. Specifically, the present invention relates to an absorbent composition comprising either an acidic water-swellable, water-insoluble polymer having a pKabetween about 2 to about 12 or a basic water-swellable, water-insoluble polymer having a pKbbetween about 2 to about 12 and either a basic or an acidic second material. The absorbent composition has the ability to slowly absorb a large quantity of liquid, particularly while under an external pressure. The absorbent composition is useful in disposable absorbent products, such as those disposable absorbent products that are used to absorb bodily liquids.
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Qin Jian
Ramaswami Wallajapet Palani Raj
Kimberly--Clark Worldwide, Inc.
Lipman Bernard
Rosiejka Bryan R.
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