Soft, heat activated sealant compositions heat stabilized through the addition of a phenolic resin to provide a uniform volume expansion over a wide range of temperatures are disclosed.

The invention provides a composition comprising the following A)-C): A) one or more monomers and/or oligomers; B) at least one chlorinated olefin-based polymer and/or at least one functionalized chlorinated olefin-based polymer; and C) at least one styrene-based block copolymer or derivative. The invention also provides a composition comprising the following D)-F): D) at least one compound selected from the following i) through v): i) Z.sup.1(CR.sup.1R.sup.2OC(O)CR.sup.3CH.sub.2).sub.2 (Formula 1, as described herein); ii) Z.sup.2.sub.(4-x)C[CR.sup.4R.sup.5(R.sup.6).sub.yOC(O)CR.sup.7CH.sub.2].sub.x (Formula 2, as described herein); iii) Z.sup.3.sub.(3-x)CR.sup.8[CR.sup.9R.sup.10(R.sup.11).sub.yOC(O)CR.sup.12CH.sub.2].sub.x (Formula 3, as described herein); iv) O{CR.sup.13R.sup.14C(Z.sup.4.sub.(3-x))[CR.sup.15R.sup.16(R.sup.17).sub.yOC(O)CR.sup.18CH.sub.2)].sub.x}.sub.2 Formula 4, as described herein); v) a combination of two or more from Formulas 1 through 4 above; E) at least one chlorinated olefin-based polymer and/or at least one functionalized chlorinated olefin-based polymer; and F) at least one styrene-based block copolymer or derivative thereof.

A process for producing a humic acid (HA)-derived foam, comprising: (a) preparing a HA dispersion having multiple HA molecules and an optional blowing agent dispersed in a liquid medium having a blowing agent-to-HA weight ratio from 0/1.0 to 1.0/1.0; (b) dispensing and depositing the HA dispersion onto a surface of a supporting substrate to form a wet HA layer; (c) partially or completely removing liquid medium from the wet HA layer to form a dried HA layer; and (d) heat treating the dried HA layer at a first heat treatment temperature from 80 C. to 3,200 C. at a desired heating rate sufficient to induce volatile gas molecules from the non-carbon elements or to activate the blowing agent for producing the HA-derived foam.

The foamed sheet of the present invention is a foamed sheet obtained by crosslinking and foaming a polyvinylidene fluoride-based resin composition comprising a polyvinylidene fluoride-based resin, wherein the polyvinylidene fluoride-based resin comprises a vinylidene fluoride-hexafluoropropylene copolymer, a density of the foamed sheet is not more than 180 kg/cm.sup.3, and an average cell diameter of the foamed sheet is not less than 100 m and not more than 500 m. According to the present invention, a crosslinked polyvinylidene fluoride-based resin foamed sheet having both good flame retardance and good flexibility and a process for producing the foamed sheet are provided.

A plant fiber foam board contains: plant fibers, Ethylene Vinyl Acetate (EVA) copolymer, calcium carbonate, blowing agent, and cross-linking agent which are mixed and molded in a high temperature and a high pressure. The plant fiber foam board includes multiple air holes foamed thereon, and the multiple air holes do not communicate with one another. A method of making the plant fiber foam board contains steps of: putting and mixing plant fibers, Ethylene Vinyl Acetate (EVA) copolymer, calcium carbonate, blowing agent, and cross-linking agent in a mixing machine so as to produce a semi-finished product; and putting the semi-finished product into a mold of a foaming machine so as to be heated and pressurized, such that multiple air holes are foamed on the semi-finished product, and the multiple air holes do not communicate with one another.

A rubber material containing a sulfur-modified chloroprene polymer, in which a content X (% by mass) of sulfur constituting the sulfur-modified chloroprene polymer and a total amount Y (% by mass) of a conjugate resin acid and a salt of a conjugate resin acid, on the basis of a total amount of the rubber material, satisfy Expression (A) below, and the total amount Y is 1.00% by mass or more.

13.90X5.10Y(A)

A polymer based sealing compound which is foamed, which is applied to vehicle tyres for the reduction in weight and improvement of driving dynamics, a process for producing such foamed sealing compounds, and the use thereof in tyres.

A polymer-based foam composition includes an ethylene-based polymer matrix, graphene particles dispersed in the matrix, at least one crosslinking agent, at least one blowing agent, and optionally, kickers, crosslinking co-agents, plasticizers or combinations thereof. The polymer-based foam composition is particularly useful for applications that require lightweight and sound insulation properties.

A composition for preparing a foam, a foam, and a shoe employing the foam are provided. The composition for preparing a foam includes 3-30 parts by weight of a first polymer and at least one of a second polymer and a third polymer. The first polymer is cyclic olefin polymer (COP), cyclic olefin copolymer (COC), metallocene based cyclic olefin copolymer (mCOC), fully hydrogenated conjugated diene-vinyl aromatic copolymer, or a combination thereof. The total weight of the second polymer and the third polymer is 70-97 parts by weight. The second polymer is polyolefin, olefin copolymer, or a combination thereof. The third polymer is conjugated diene-vinyl aromatic copolymer, partially hydrogenated conjugated diene-vinyl aromatic copolymer, or a combination thereof. The total weight of the first polymer and at least one of the second polymer and the third polymer is 100 parts by weight.

Provided is an unconstrained vibration damping metal sheet with foam pores. The unconstrained vibration damping metal sheet of the present invention comprises: a metal sheet; an organic-inorganic pretreatment layer containing an acrylic resin formed on the metal sheet; and a foam resin layer formed on the pretreatment layer, the foam resin layer containing, based on weight % thereof, a thermoplastic polyvinyl chloride resin: 40-80%, a plasticizer: 5-40%, a foaming agent: 0.1-10%, an oxide-based crosslinker: 1-4%, and spherical silica: 1-10%.