A construction material comprises a watertight sheet material of a mixture of a plastic and at least one additive. The plastic comprises at least substantially polyvinyl butyral (PVB). At least a fire retardant containing ammonium polyphosphate is added thereto as additive. Use is particularly made of recycled polyvinyl butyral.

The present invention refers to a process for the production of an additive composition intended to be mixed into a bituminous conglomerate for road paving. The process includes grinding a mixed waste material containing a mixture of plastic materials, which includes at least one plastic material based on a polyolefin thermoplastic material, washing the ground mixed waste material and separating a portion of low-density material which contains the plastic material based on a polyolefin thermoplastic polymer from the mixed waste material. This portion of low-density material is then ground to a particle size between 10 mm and 20 mm; and then mixed with a material based on polyvinyl butyral. The resultant mixture is further ground to produce an additive composition having a particle size between 4 mm and 6 mm.

The present invention aims to provide a resin foam excellent in shock absorption properties and damping properties and less likely to cause sheet misalignment. Provided is a resin foam having a multitude of cells, the resin foam containing: a polyvinyl acetal; and a plasticizer, the resin foam having a loss tangent tan δ with a peak of 0.5 or higher in the range of 0° C. to 50° C. as determined by dynamic viscoelasticity measurement at a measurement frequency of 1 Hz, and the resin foam having a 23° C. compression set of 85% or lower.

The present invention relates to the field of a protection system based on composite material used in ballistics. The application relates to a two-steps light and heat curable resin composition, a process of forming in a first step a prepreg using said resin and in a second step a protection system comprising the laminated composite of the invention.

It is demanded that a LTCC substrate composition capable of maintaining low relative permittivity k and high Q value without having a reactivity with a silver which is an electrode material and causing migration of the silver during a co-firing operation at a low temperature. Provided with a low temperature co-fired substrate composition containing 83 to 91 wt. % of CaO-B.sub.2O.sub.3-SiO.sub.2 based glass powder, 7.5 to 14 wt. % of two or more kinds of nanometer-sized SiO.sub.2 powders having different ranges of particle diameter and 1.5 to 3 wt. % of β-wollastonite powder as a crystallization agent wherein the glass powder contains 40.0 to 45.0 wt. % of CaO, 9.0 to 20.0 wt. % of B.sub.2O.sub.3 and 40.0 to 46.0 wt. % of SiO.sub.2.

The present invention relates to a modified polyvinyl butyral material, comprising a polyvinyl butyral composite material, a filler, an anti-hydrolysis agent, a first plasticizer, zinc stearate, calcium stearate, and a polymeric dispersant; wherein the polyvinyl butyral composite material is obtained by plasticizing a composition comprising polyvinyl butyral and a second plasticizer. The present invention also relates to a preparation method of the modified polyvinyl butyral material, a modified polyvinyl butyral product comprising at least one modified polyvinyl butyral layer prepared from a material comprising the modified polyvinyl butyral material, and the preparation method of the modified polyvinyl butyral product.

A film for laminating glass includes a polyvinyl acetal, a plasticizer, inorganic particles, and a trioxane-based compound.

Provided is a thermoplastic resin film with which a glass plate-including laminate that looks different in color tone depending on the direction or angle can be obtained. A thermoplastic resin film according to the present invention includes a thermoplastic resin and a pigment, and when the thermoplastic resin film is planarly viewed with a transmission electron microscope, a number of pigments having an aspect ratio of 3 or more and 50 or less is 3 or more and 100 or less in a rectangular region of 13 μm long and 18 μm wide.

The present disclosure relates to a film for bonding including an embossed surface, wherein the embossed surface has a Sku value of 5 or less, wherein the embossed surface has Sk, Spk, and Svk values, and when a total sum of the Sk value, the Spk value, and the Svk value is 100%, a sum of the Sk value and the Spk value is 50% or more, wherein the embossed surface has a Sz value of 30 to 90 μm, and wherein the film includes a polyvinyl acetal resin and a plasticizer.

The present invention relates to a resin composition, comprising: a modified vinyl acetal resin which comprises 20 to 80 mol % of ethylene units and 4 to 76 mol % of vinyl alcohol units based on all monomer units constituting the resin, and has an acetalization degree of 5 to 80 mol %; and an alkali metal salt and/or an alkaline earth metal salt of a strong acid, wherein a total content of the alkali metal salt and/or the alkaline earth metal salt of the strong acid is 0.0005 to 0.06 part by mass with respect to 100 parts by mass of the modified vinyl acetal resin.