A water absorbent latex polymer foam produced by the process of combining a foamed latex polymer product with a water absorbent polymer and drying that blend to form a foamable latex polymer containing a water absorbent polymer is disclosed in this invention. The latex foams produced by this process are of great use, for example, within diapers, sanitary napkins, packaging materials, and the like. In particular, the use of water absorbent polymers with particle size less than about 30 microns ha...

The present invention is directed to producing a smooth hard coating on a wood substrate. A layer of a foamed polymerized latex emulsion is applied on the surface of a wood substrate, such as an oriented strand board. The layer is dried, crushed and then cured to form the coating. If desired the cured coating may be provided with a post cure heat treatment to improve its hardness. The present invention is also directed to applying and drying the layer of the foamed polymerized latex emulsion on ...

Disclosed are hollow polymer particles composed of a crosslinked polymer having a comparatively small particle diameter and a narrow particle diameter distribution, an aqueous dispersion of the particles, and an ink having good flying property.The hollow polymer particles are obtained by emulsion-polymerizing a crosslinkable polymerizable monomer composition absorbed in seed particles and containing a crosslinkable monomer component and a hydrophilic monomer component, wherein the seed particles...

The manufacture of foam rubber having improved set and deflection properties at low foam densities is provided.

A water absorbent latex polymer foam produced by the process of combining a foamed latex polymer product with both a water absorbent polymer and chitin and drying that blend to form a foamable latex polymer containing both water absorbent polymer and chitin. The latex foams produced by this process are of great use, for example, with wound or surgical dressings.

The gel range of acid-acting delayed-action gelling agents, such as sodium silicofluoride, in latex spread foam compounds which are to be gelled by subjecting them to a preliminary heat treatment prior to drying is substantially broadened by including a water-soluble ammonium or amine sulfamate in the compound. At least 0.5 parts by weight of the sulfamate should be used per 100 parts by weight of dry solids in the starting uncompounded latex. It can be added to the latex at any time before or d...

Newly developed polymeric materials are presented in a form of pellet, thread, sponge, rubber, or plate acting as a damper for shear mode and an absorber against outside noise. These materials provide multiple functions of damping, sound absorbency and insulation performance at audio frequency.

An expandable aqueous coating composition includes a polymeric binder including latex particles wherein the latex particles include a copolymer having a glass transition temperature of about -20.degree. C. to about +60.degree. C. and a weight average molecular weight of about 20,000 to about 500,000 and including expandable particles having a liquid blowing agent contained within a thermoplastic shell.

A flame retardant, halogenated polyol having the formula ##STR1## wherein R is an aliphatic radical substituted with at least 2 hydroxyl groups, X is a halogen, and X' is a halogen or hydrogen, is used in the reaction mixture for preparing flame retarded polyurethanes.

A foamable ink composition which comprises a water-based printing ink, a foaming agent and a pseudoplastic additive. The ink, foaming agent and pseudoplastic additive are foamed with a compressed gas. The pseudoplastic additive aids in the mixing of the ink with the gas and enhances the stability of the foam. The foam is especially adapted for application to a gravure cylinder where it is doctored to convert the foam bubbles into thin discrete membranes spanning the gravure cells. These membrane...