C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/2002, 400/30
C08G 81/00 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01) C08G 18/83 (2006.01) C08G 65/32 (2006.01) C08L 23/00 (2006.01) C08L 23/04 (2006.01) C08L 23/10 (2006.01) C08L 71/00 (2006.01) C08L 71/02 (2006.01) C08L 75/08 (2006.01) C08L 87/00 (2006.01) D04H 1/22 (2006.01) D04H 3/00 (2006.01)
Patent
CA 1317694
Abstract A superabsorbent, thermoplastic polymeric composition comprising: (A) from about 86 to about 98 percent by weight, based on the total weight of the composition, of a poly(oxyethylene) diol soft segment having a weight average molecular weight in the range of from about 5,000 to about 50,000: and (B) from about 2 to about 14 percent by weight, based on the total weight of the composition, of a hard segment which has a melting point above ambient temperature and below the temperature at which decomposition of either the composition or the soft segment takes place, is essentially insoluble in water, and phase separates from the soft segment, said hard segment being selected from the group consisting of polyurethanes, polyamides, polyesters, polyureas, and combinations thereof; wherein the soft and hard segments are covalently bound together by means of urethane, amide, ester, or secondary urea linkages or combinations thereof. A stable, nonreactive, thermoplastic polymer blend comprising from about 10 to about 95 percent by weight of a superabsorbent, thermoplastic polymeric composition and from about 90 to about 5 percent by weight of at least one thermoplastic polymer. A nonwoven superabsorbent web comprising fibers composed of a superabsorbent, thermoplastic polymeric composition, such as a nonwoven superabsorbent web comprising a plurality of substantially randomly deposited monofilaments of a thermoplastic superabsorbent. Such a web is prepared by meltblowing a thermoplastic superabsorbent. The compositions are especially well suited for the preparation of nonwoven webs by meltblowing, coforming and spunbonding processes.
555126
Greene Sharon L.
Morman Michael T.
Pazos Jose F.
Rodriguez Augusto
Borden Ladner Gervais Llp
Kimberly-Clark Worldwide Inc.
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