A process for the production of a geopolymer composite. The disclosure further relates to a geopolymer composite, and the use of a geopolymer, a geopolymer in combination with an athermanous additive, or the geopolymer composite in expanded vinyl polymer, preferably vinyl aromatic polymer. Furthermore, the disclosure relates to a process for the production of expandable vinyl aromatic polymer granulate, and expandable vinyl aromatic polymer granulate. Finally, the disclosure relates to expanded vinyl foam, preferably vinyl aromatic polymer, and to a masterbatch comprising vinyl polymer and a), b), or c).

A high-performance composite material is provided including a polymer and a hybrid nanoadditive dispersed throughout the polymer at a low concentration and without agglomeration. The hybrid nanoadditive includes a first, graphene oxide portion and a second, polyhedral oligomeric silesquioxane (POSS) portion. Associated extrusion systems and methods are also provided.

The invention concerns a pigmentary preparation having universality of use in tinting plastics.

A thermally expandable composition includes at least one epoxy-functional polymer, at least one endothermic chemical blowing agent, at least one free radical initiator, and at least one guanidine derivative. The invention is also related to a baffle and/or a reinforcement element for hollow structures including the thermally expandable composition, to a process for manufacturing the baffle and/or the reinforcement element, to use of the baffle and/or the reinforcement element for sealing, baffling, or reinforcing of a cavity or a hollow structure, and to a method for sealing, baffling and/or reinforcing a cavity or hollow structure.

A surface protect material is described that is high in UV resistance, able to protect the surface of the prepreg used as the parent material, able to prevent a fiber composite material from being deteriorated by UV, able to prevent defects during painting, able to serve for control of the resin flow, and is low in the volatilization percentage during curing, where the surface protect material is a coating agent for spraying or manual application comprising an epoxy resin composition containing at least the components [A] to [D]: [A] non-aromatic epoxy resin, [B] pigment having an number average particle size of 0.1 to 10 μm, [C] non-aromatic thermoplastic resin, and [D] cationic curing agent or anionic curing agent.

A dry tape material for fiber placement includes a plurality of reinforcing fiber strands that satisfy (i) to (iii): (i) the reinforcing fiber strand has thicknesses T1 and T3 at both ends in a width direction of a section of the reinforcing fiber strand, and both T1 and T3 are 50 to 200% relative to a thickness T2 at a central portion of the reinforcing fiber strand, (ii) the reinforcing fiber strand has a number of filaments N and a width W that satisfy a relationship of 4.8<N/W<12, and (iii) the reinforcing fiber strand has a form kept by a first resin material having a glass transition temperature Tg or a melting point Tm of 40° C. to 200° C., the first resin material being heat-meltable, wherein the plurality of reinforcing fiber strands are bound and integrated with each other by a second resin material.

The present invention relates to a particulate carbon material that can be produced from renewable raw materials, in particular from biomass containing lignin, comprising: a 14C content that corresponds to that of the renewable raw materials, said content being preferably greater than 0.20 Bq/g carbon, especially preferably greater than 0.23 Bq/g carbon, but preferably less than 0.45 Bq/g carbon in each case; a carbon content in relation to the ash-free dry substance of between 60 ma. % and 80 ma. %; an STSA surface area of the primary particles of at least 5 m2/g and at most 200 m2/g; and an oil absorption value (OAN) of between 50 ml/100 g and 150 ml/100 g. The present invention also relates to a method for producing said carbon material and to the use thereof.

The epoxy resin composition for a prepreg according to an embodiment of the present invention contains (A) an epoxy resin, (B) a curing agent or a curing accelerator, (C) silica microparticles, and (D) core-shell rubber particles, the epoxy resin composition containing from 1 to 5 parts by mass of (C) the silica microparticles and from 2 to 10 parts by mass of (D) the core-shell rubber particles per 100 parts by mass of (A) the epoxy resin, and a mass ratio of (C) the silica microparticles to (D) the core-shell rubber particles, in terms of (C)/(D), being from 1/1 to 1/5.

Disclosed is a high filling and high resilience soft foaming polyethylene material, comprising the following parts of raw materials by weight: 15-20 parts polyethylene, 5-20 parts elastomers, 60-80 parts modified calcium carbonate, 1-10 parts chemical foaming agent, 0.5-1.5 parts crosslinking agent and 1-5 parts physical foaming agent. Also disclosed is a method of preparing high filling and high resilience soft foaming polyethylene material. The present invention can prepare a high calcium carbonate filling and high resilience soft foaming polyethylene material with calcium carbonate filler content as high as 55-75%, improving rigidity, hardness and compressive strength of the material while maintaining the elasticity of the foaming material, and reducing material density. The present invention has a simple process, greatly reduces costs and is economical and practical.

Low-density thermoplastic expandable microspheres are disclosed. Various low-density structures, in particular, sandwich panels, based on foam prepared from the low-density microspheres, are also disclosed. Process of preparing low-density polymeric microspheres, per se, and the corresponding low-density structures, based on the microsphere foam, are also disclosed.