초록

A multilayer construction that includes a first layer that includes water sensitive thermoplastic polymer and a second layer disposed on the first layer, the second layer including superabsorbent polymer.

대표청구항 ▼

What is claimed is: 1. A method of making a multilayer article comprising: providing a molten water sensitive thermoplastic polymer; and contacting said molten thermoplastic polymer with an aqueous composition of a water soluble superabsorbent polymer. 2. The method of claim 1, wherein said mult

What is claimed is: 1. A method of making a multilayer article comprising: providing a molten water sensitive thermoplastic polymer; and contacting said molten thermoplastic polymer with an aqueous composition of a water soluble superabsorbent polymer. 2. The method of claim 1, wherein said multilayer article is in a form selected from the group consisting of fibers, filaments and combinations thereof. 3. The method of claim 1, wherein said multilayer article is in the form of a film. 4. The method of claim 1, wherein said superabsorbent polymer composition is contacted to said water sensitive thermoplastic polymer while said water sensitive thermoplastic polymer is at a higher temperature than that of said superabsorbent polymer composition. 5. The method of claim 4, wherein said water sensitive thermoplastic composition is formed by extrusion. 6. The method of claim 5, wherein said superabsorbent polymer composition is applied to said water sensitive thermoplastic composition as said water sensitive thermoplastic composition is extruded. 7. The method of claim 4, comprising the further step of crosslinking said superabsorbent polymer composition. 8. The method of claim 1, comprising the further step of including a crosslinked polyacrylate in said superabsorbent polymer. 9. The method of claim 1, comprising the further step of including a crosslinked and at least partially neutralized α,β-ethylenically unsaturated monomer selected from the group consisting of monocarboxylic acid monomers, dicarboxylic monomers, acid anhydride monomers, and combinations thereof in the superabsorbent polymer. 10. The method of claim 1, comprising the further step of including as the thermoplastic polymer, the reaction product of (a) a polyoxyalkylene glycol diamine having the formula NH2--(CH 2)x--(OCH2--CH2)y--O--(CH 2)x--NH2, wherein 2≦X≦ 3 and 1≦Y≦2, and (b) and an acid selected from the group consisting of dicarboxylic acid, dicarboxylic acid ester, and combinations thereof. 11. The method of claim 1, comprising the further step of including as the thermoplastic polymer, the reaction product of adipic acid and polyoxyalkylene glycol diamine.