A composite material includes a polymer and a paint char material. The paint char material includes pyrolyzed paint sludge and in some forms is a hybrid paint char. The hybrid paint char includes lignin.

A process for preparing a porous material provides a mixture (M1) of a water-soluble bio-based polyphenolic polymer and tannin biopolymers as compound (C1) and water. Mixture (M1) reacts with an aqueous solution of at least one polyvalent metal ion to prepare a gel (A), the gel (A) is exposed to a water-miscible solvent (L) to obtain a gel (B), and the gel (B) is dried. Porous materials which can be obtained in this process find application as thermal insulation material, carrier material for load and release of actives, batteries, electrode materials in batteries, fuels cells or electrolysis, for catalysis, for capacitors, for consumer electronics, for building and construction applications, for home and commercial appliance applications, for temperature-controlled logistics applications, for vacuum insulation applications, for apparel applications, for food applications, for cosmetic applications, for biomedical applications, for agricultural applications, for consumer applications, for packaging applications or for pharmaceutical applications.

A roof system comprising a roof deck, and a membrane secured to the roof deck, where the membrane is an EPDM membrane including at least two cured layers of EPDM rubber, where at least one of the at least two cured layers includes lignin dispersed therein.

A resin composition for impregnating paper products used in manufacture of high-pressure decorative laminates includes a resin and lignin derivatives.

A resin composition for impregnating paper products used in manufacture of high-pressure decorative laminates includes a resin and lignin derivatives.

Particles having a core including a water soluble flame retardant, such as ammonium polyphosphate and a shell including polyphenols, such as lignosulfonates. These particles may be used as flame retardants, in particular in polymer foams.