Provided is a resin composition for a foam that may include a base resin having a reactive silicon group (A), a chemical foaming agent (B), and a silanol condensation catalyst (D), wherein the chemical foaming agent (B) comprises a dicarbonate diester (B-1). Further provided is a method for producing a foam, that may include: a mixing step of mixing a liquid, which may include a base resin having a reactive silicon group (A) and a dicarbonate diester (B-1), with a silanol condensation catalyst (D) to obtain a mixed liquid, wherein in the mixed liquid, a rate of foaming effected by decomposition of the dicarbonate diester (B-1), and a rate of a curing reaction of the mixed liquid effected by a reaction between the reactive silicon groups may each be adjusted, such that a foam having an expansion ratio of 2-fold or more and 60-fold or less is obtained.

The present disclosure provides a foam bead. The foam bead is formed from a composition containing (A) a silane-functionalized ethylene/α-olefin multi-block interpolymer. The present disclosure also provides a sintered foam structure. The sintered foam structure is formed from foam beads that are formed from a composition containing (A) a silane-functionalized ethylene/α-olefin multi-block interpolymer.

Environmentally friendly, sustainable, and high-performance ultralight composite foams are disclosed. The composite foams are prepared from cellulose nanomaterial, polymeric material, and a crosslinking agent. The fabrication process is simple and uses only water. The composite foams exhibit an elastic strain exceeding the values reported for known nanocellulose-based foams with no reinforcement. The foams exhibit a thermal conductivity superior to that of traditional insulating materials and retain structural integrity after burning.

The present invention relates to a cable jacket composition comprising an expandable and crosslinkable jacket blend of: a polymer composition comprising a polyolefin material, which polyolefin material bears silane moieties, and a foaming system, wherein the provided jacket blend will comprise at least 0.1% by weight of a foaming agent, with respect to the total weight of the polyolefin material; cable jacket; cable, e.g. a power cable or a communication cable; and uses thereof.

A low-density gel product of the present disclosure has a skeleton containing a polysiloxane chain and an organic polymer chain. In the skeleton, the polysiloxane chain and the organic polymer chain are bonded to each other by covalent bonds at a plurality of positions on both of the chains with silicon atoms of the polysiloxane chain as bonding points. The organic polymer chain may be an aliphatic hydrocarbon chain. The polysiloxane chain may be a polyorganosiloxane chain. The low-density gel product of the present disclosure is a novel low-density gel product with improved mechanical properties including bending flexibility.

Although polyolefin elastomers are widely employed commodity polymers, there are shortcomings of this class of polymers for certain applications. For example, the rheological properties of some polyolefin elastomers may be insufficient to provide the green strength or low shear viscosity necessary to form stable foams, or to provide sufficient viscosity modification effects when present in a solvent. Cationomeric modification of polyolefin elastomers may alleviate these difficulties. Such polyolefin elastomers may feature a random cationomeric polyolefin copolymer comprising at least a first monomer and a second monomer, in which the first monomer is a neutral monomer and the second monomer has a side chain bearing a cationic moiety. The polyolefin elastomers may be present in foamed polyolefin compositions comprising a gas component and/or in liquid compositions comprising a solvent in which the polyolefin elastomer is dissolved.

Scorch of a silane-functionalized polyolefin is minimized during melt mixing with a flame retardant through the use of a polydimethylsiloxane (PDMS) having a (1) number average molecular weight (Mn) greater than or equal to () 4,000 grams per mole (g/mol), (2) viscosity of greater than or equal to () 90 centipoise (cP), and (3) hydroxyl group content of less than or equal to () 0.9 weight percent (wt %) based on the weight of the PDMS.

A foamable, insulating-layer-forming multi-component composition contains alkoxysilane-functional polymer, insulating-layer-forming fire-protection additive, blowing-agent mixture, cross-linking agent, and a flame-protection agent that is miscible in water or another compound that is miscible in water. The individual ingredients of the blowing-agent mixture are separated from one another to ensure inhibition of reaction prior to use of the composition, and the cross-linking agent is separated from the alkoxysilane-functional polymer to ensure inhibition of reaction prior to use of the composition. The foamable, insulating-layer-forming multi-component composition can be used as a foam-in-place foam or for production of molded blocks.

The present invention relates to the manufacture of a new class of hybrid aerogels with a 3-D reticulated structure. First, the organic and inorganic components of the structure are distributed on a molecular level in such a way that all of the organic components of the precursor are chemically bonded to each other and to the inorganic component. Second, in the new hybrid aerogels, the pores are separated by solid walls like reticulated open-cell foams without the particulate solid parts and also the present invention is a process for preparing a hybrid aerogel without aging step having a nonparticulate-reticulated structure comprises of a polymeric precursor that is crosslinked by a linkage without forming particulate structure.

A liquid resin composition may include a base resin (A) in an amount of 100 parts by weight, a chemical foaming agent (B) in an amount of 2 parts by weight or more and 100 parts by weight or less, and water (C) in an amount of 1 part by weight or more and 30 parts by weight or less. The base resin may be a polymer that includes a hydrolyzable group bonded to a silicon atom, at least one reactive silicon group that is capable of being crosslinked by forming a siloxane bond, and a main chain that is constituted by an oxyalkylene-based monomer unit. The chemical foaming agent (B) may include a bicarbonate (B-1) and an acidic compound (B-2) having an acid dissociation constant pKa of 3.0 or less.