A polymerisable composition suitable for impregnating a permeable material, a process for the treatment of a permeable material, especially wood and an impregnated material is described. The composition includes at least 60% w/w composition of one or more polymerisable monomer(s) and an initiator effective to bulk polymerise the polymerisable monomers above 50 C. The composition includes up to 0.5% w/w tempo compound effective to stabilise the composition at temperatures less than 50 C. or below its thermally activated polymerisation temperature and to not substantially prevent polymerisation above the polymerisation temperature. The process has steps of locating the permeable material in a chamber; evacuating the chamber; adding a thermally initiatable bulk polymerisable composition to the chamber; allowing the material to become impregnated with polymerisable composition; removing excess polymerisable composition; and effecting bulk polymerisation of the composition by increasing the temperature of the impregnated material in the chamber to initiate polymerisation of the composition.

A polymerisable composition suitable for impregnating a permeable material, a process for the treatment of a permeable material, especially wood and an impregnated material is described. The composition includes at least 60% w/w composition of one or more polymerisable monomer(s) and an initiator effective to bulk polymerise the polymerisable monomers above 50 C. The composition includes up to 0.5% w/w tempo compound effective to stabilise the composition at temperatures less than 50 C. or below its thermally activated polymerisation temperature and to not substantially prevent polymerisation above the polymerisation temperature. The process has steps of locating the permeable material in a chamber; evacuating the chamber; adding a thermally initiatable bulk polymerisable composition to the chamber; allowing the material to become impregnated with polymerisable composition; removing excess polymerisable composition; and effecting bulk polymerisation of the composition by increasing the temperature of the impregnated material in the chamber to initiate polymerisation of the composition.

Improved silica based matting agents are disclosed. The matting agents are useful in waterborne coatings composition to provide exceptional properties to a wood based substrate. Films resulting on the coated substrate unexpectedly provide improved chemical resistance, thermal stress resistance, weather resistance, and/or film clarity to the surface of a wood substrate. Methods of making and using the matting agents are also disclosed.

The present invention relates to an aqueous coating composition comprising polyurethane A and vinyl polymer, wherein the polyurethane A comprising as building blocks at least: (a) a polyisocyanate(s) containing at least one cyclic group, (b) a non-cyclic aliphatic diisocyanate(s) whereby the non-cyclic aliphatic group connecting the two isocyanate groups has 5 carbon atoms, and (c) a component(s) containing an isocyanate-reactive group(s), whereby the summed amount of (a) and (b) is 10 to 60 wt. %, relative to the total weight amount of components used to prepare the polyurethane A; and whereby the weight ratio between (a) and (b) is in the range from 50:50 to 99:1.

The present invention relates to an aqueous coating composition comprising polyurethane A and vinyl polymer, wherein the polyurethane A comprising as building blocks at least: (a) a polyisocyanate(s) containing at least one cyclic group, (b) a non-cyclic aliphatic diisocyanate(s) whereby the non-cyclic aliphatic group connecting the two isocyanate groups has 5 carbon atoms, and (c) a component(s) containing an isocyanate-reactive group(s), whereby the summed amount of (a) and (b) is 10 to 60 wt. %, relative to the total weight amount of components used to prepare the polyurethane A; and whereby the weight ratio between (a) and (b) is in the range from 50:50 to 99:1.

An aqueous polymer dispersion and an aqueous coating composition comprising the aqueous polymer dispersion; and the aqueous coating composition capable of providing coating films with excellent tannin blocking and satisfactory early block resistance and sandability.

An aqueous polymer dispersion and an aqueous coating composition comprising the aqueous polymer dispersion; and the aqueous coating composition capable of providing coating films with excellent tannin blocking and satisfactory early block resistance and sandability.

The present invention refers to an insulating composition, to a kit comprising such composition and a coating composition based on the Real Michael Addition chemistry, to its use, and to a method for the coating of a substrate employing such kit.

An abrasion resistant coating is disclosed. The coating includes diamond particles and may be used in one or more coating layers of a coating stack for a wood substrate. Wood substrates include hardwood and engineered hardwood flooring.

The present invention relates to an aqueous coating composition comprising polyurethane A and vinyl polymer, wherein the polyurethane A comprises as building blocks at least: (a) a polyisocyanate(s) containing at least two cyclic groups, (b) a non-cyclic aliphatic diisocyanate(s) whereby the non-cyclic aliphatic group connecting the two isocyanate groups has from 4 to 36 carbon atoms, and (c) a component(s) containing an isocyanate-reactive group(s), whereby the summed amount of (a) and (b) is 10 to 60 wt. %, relative to the total weight amount of components used to prepare the polyurethane A; and whereby the weight ratio between (a) and (b) is in the range from 50:50 to 99:1.