A disintegrable film is disclosed, including at least one water-soluble polymer having a molecular weight greater than about 700 kDa, and at least one water-soluble plasticizer having a molecular weight less than about 0.8 kDa. A further disintegrable film is disclosed wherein the disintegrable film is a tacky adhesive film, includes a storage modulus of about 310.sup.6 dyn/cm.sup.2 or less at 1 rad/s and 25 C., includes a disintegration resistance factor sufficient to resist disintegration for a disintegration time after contact with a disintegrating fluid, includes a tan evaluated at an angular frequency of 0.01 rad/s and 25 C. of less than about 1, the at least one water-soluble polymer constitutes between about 3 wt % to about 70 wt % of the disintegrable film, and the at least one water-soluble plasticizer constitutes between about 30 wt % to about 60 wt % of the disintegrable film.

The invention disclosed herein generally relates to matrices comprising polymers and methods for preparing them.

The invention relates to novel a high-volume swelling hydrogel which comprises a plurality of pores which are defined by an interpenetrating network, and/or a semi-interpenetrating network and/or simple cross-linked arrangement of a plurality of one or more species of hydrophilic polymers, optionally together with one or more biocompatible polymers and optionally together with one or more plasticising agents, characterised in that at least some of the pores are at least partially collapsed and/or flattened, and further characterised in that the interpenetrating network and/or semi-interpenetrating network and/or cross-linked arrangement which defines the collapsed and/or flattened pores is substantially unbroken. The invention also relates to a process for preparing such hydrogels, and to their use as an appetite suppressant.

An organic-inorganic composite hydrogel that can be prepared only by mixing of raw materials at room temperature and has a self-supporting property. A hydrogel-forming composition capable of forming a hydrogel having a self-supporting property, the composition wherein including colloidal silica particles (A) and a polymer (B) including a unit structure of the following Formula (1):

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(wherein R.sub.1 and R.sub.2 are each independently a hydrogen atom or an optionally substituted linear, branched, or cyclic alkyl group having a carbon atom number of 1 to 10, or R.sub.1 and R.sub.2 are optionally bonded together to form a cyclic structure); and a hydrogel prepared therefrom.

A sealing composition for use in unit dose packages is provided, including: 70 to 98 wt % water; 1 to 30 wt % of a hydrogen bonding component; and 1 to 30 wt % of a complex forming component.

Foamed, opacifying elements are prepared using a foamable aqueous composition containing porous particles and an opacifying colorant. This composition is aerated, disposed onto a substrate, and dried. The dry foamed composition is densified, and cured in either order. At some point after the drying feature, a functional composition is disposed onto either the dry foamed composition or the opacifying layer, and dried. This functional composition has either or both of: (i) inorganic or organic spacer particles having a mode particle size of 1 to 100 m, and which inorganic or organic spacer particles resist melt flow at a pressure of up to and including 100 psi (689.5 kPa) and a temperature of up to and including 220 C.; and (iii) a tinting material comprising a pigment, dye, or a combination thereof. The (i) inorganic or organic spacer particles and the (iii) tinting material are different materials.

The invention relates to a process for the manufacture of thermally expandable thermoplastic microspheres. The process comprises, providing a mixture of monomeric materials suitable for polymerisation to form a thermoplastic polymer and at least one blowing agent, providing to the mixture a colloidal silica that is surface-modified with at least hydrophobic organosilane groups and forming an emulsion. A polymerisation is performed to form the thermally expandable thermoplastic microspheres. The invention further relates to thermally expandable thermoplastic micro spheres, expanded micro spheres and their use in the manufacture of products.

A sealing composition for use in unit dose packages is provided, including: 70 to 98 wt % water; 1 to 30 wt % of a hydrogen bonding component; and 1 to 30 wt % of a complex forming component.

The present invention teaches a QD hydrogel, a QD patterning method, and a QD transfer printing method. The QD transfer printing method includes the following steps. Step 10: forming a QD hydrogel by loading QD material in a hydrogel material capable of resisting high temperature; step 20: forming a film of the QD hydrogel on a metallic substrate; and step 30: covering the QD hydrogel film by a patterning mold conducting nano imprinting, and obtaining a patterned QD hydrogel film. The hydrogel of the present invention has a lower cost and a high utilization, and is appropriate for industrial production. The QD hydrogel of the present invention guarantees a maximum coverage for QD surface ligand and lowers the QD fluorescence loss in the manufacturing process. When applied to a QD CF sheet, its fluorescent efficiency may be enhanced.

A method for producing a polymer film is disclosed herein. The method is capable of effectively forming a polymer film on a substrate, where the polymer film comprises highly aligned block copolymers without orientation defects, coordination number defects, distance defects, and the like. The method can be applied to production of various patterned substrates.