A light-blocking article is designed to be lightweight but effective to block most incident actinic radiation and can be designed into fabrics, curtains, and other materials. Such an article has an opacifying layer that is capable of blocking predetermined electromagnetic radiation. The article contains (a) porous particles comprising a continuous polymeric binder and pores within the continuous polymeric binder, the porous particles having a glass transition temperature of at least 25 C. and a mode particle size of at least 2 m and up to and including 50 m. The article also contains an opacifying colorant that absorbs the predetermined electromagnetic radiation (such as within 400 nm to 700 nm), in an amount of at least 0.001 weight % based on the total dry weight of the opacifying layer, and a matrix polymer in which the porous particles and opacifying colorant are dispersed.

Separating film, comprising at least one layer(s) having a foamed structure of at least one thermoplastic polymer, at least one of the surfaces of the separating film being provided with a release layer (b) of at least one cured polysiloxane as an outer layer, the use thereof as a detachable protective and covering film, and roofing membrane provided with the separating film as a detachable protective and covering film.

A light-blocking article is designed to be lightweight but effective to block most incident actinic radiation and can be designed into fabrics, curtains, and other materials. Such an article has an opacifying layer that is capable of blocking predetermined electromagnetic radiation. The article contains (a) porous particles comprising a continuous polymeric binder and pores within the continuous polymeric binder, the porous particles having a glass transition temperature of at least 25 C. and a mode particle size of at least 2 m and up to and including 50 m. The article also contains an opacifying colorant that absorbs the predetermined electromagnetic radiation (such as within 400 nm to 700 nm), in an amount of at least 0.001 weight % based on the total dry weight of the opacifying layer, and a matrix polymer in which the porous particles and opacifying colorant are dispersed.

An adhesive composition that provides improved structural integrity and insulative properties when applied to a substrate is provided. The adhesive composition includes an emulsion-based polymer, a plurality of microspheres; and optionally, water and plasticizer.

An adhesive composition that provides improved structural integrity and insulative properties when applied to a substrate is provided. The adhesive composition includes an emulsion-based polymer, a plurality of microspheres; and optionally, water and plasticizer.

Methods of treating a cured porous inorganic; coating include contacting the coating with water vapour or a combination of water vapour and base, wherein the coating prior to curing includes a coating composition having particles with a core which is hollow or which comprises an organic polymer composition and a shell formed of an inorganic oxide. The shell has a thickness in the range from 2 to 75 nm and has at least one and no more than five enlarged pores, each enlarged pore having a diameter of between 5 nm and 300 nm.

Prepare an article of manufacture by providing a latex of hollow latex particles with a rigid inner shell and adhesive outer shell, providing nanoporous particles and dispersing them into the latex and drying the latex so as to cause the hollow latex particle to bind to one another and form an article of manufacture containing nanoporous particles and hollow latex particles wherein the hollow latex particles are bound directly to one another to form a continuous matrix and the nanoporous particles are dispersed within the continuous matrix of hollow latex particles.

A coating composition of: from 4 to 17 wt % of hollow microspheres having a thermal conductivity (designated lambda) below 0.1 W.Math.m.sup.1.Math.K.sup.1, from 0.05 to 1 wt % of at least one linear alcohol whose hydrocarbon chain comprises at least 8 carbon atoms, from 5 to 25 wt % of at least one bonding agent selected from water-dispersible or water-soluble polymers, comprising a glass transition temperature (Tg) less than or equal to 65 C., from 25 to 50 wt % of a non-hydraulic binder that is mineral and metallic fillers: having an average particle size in the range from 5 to 100 m, from 0.1 to 1 wt % of at least one thickener, water, Use thereof and the applications thereof as smoothing and/or heat-insulating coating for walls and ceilings.