A vibration isolation rubber composition containing the following components (B) to (E) together with a polymer made of a component (A) below is provided. Accordingly, it is possible to achieve both heat resistance and a low dynamic-to-static modulus ratio at a high level without impairing durability. In the vibration isolation rubber composition, (A) is a diene rubber, (B) is a filler, (C) is a dihydrazide compound, (D) is any one of a (meth)acrylic acid monomer, zinc oxide, and zinc (meth)acrylate, and (E) is a sulfur vulcanizing agent.

A vibration isolation rubber composition containing the following components (B) to (E) together with a polymer made of a component (A) below is provided. Accordingly, it is possible to achieve both heat resistance and a low dynamic-to-static modulus ratio at a high level without impairing durability. In the vibration isolation rubber composition, (A) is a diene rubber, (B) is a filler, (C) is a dihydrazide compound, (D) is any one of a (meth)acrylic acid monomer, zinc oxide, and zinc (meth)acrylate, and (E) is a sulfur vulcanizing agent.

A vibration isolation rubber composition containing the following components (B) to (E) together with a polymer made of a component (A) below is provided. Accordingly, it is possible to achieve both heat resistance and a low dynamic-to-static modulus ratio at a high level without impairing durability. In the vibration isolation rubber composition, (A) is a diene rubber, (B) is a filler, (C) is a dihydrazide compound, (D) is any one of a (meth)acrylic acid monomer, zinc oxide, and zinc (meth)acrylate, and (E) is a sulfur vulcanizing agent.

Water-borne cross-linking polymeric compositions and related embodiments, such as methods of making and using the compositions, as well as products formed with said compositions are described. For example, the water-borne composition may comprise polymers incorporating cross-linking functionality such as, but not limited to, carbonyl or epoxy functionality, and a blocked cross-linking agent, for example, a hydrazone. The cross-linking functionality does not react with the blocked cross-linking agent; however, the blocked cross-linking agent is capable of reacting with the alternative form cross-linking agent such as, but not limited to, a hydrazide, to yield a cross-linked polymer. The alternative form cross-linking agent may be formed in an equilibrium reaction including the blocked cross-linking agent.

An electric cable has at least one semi-conductive layer obtained from a polymer composition having at least one polypropylene-based thermoplastic polymer material, at least one first antioxidant and at least one metal deactivator.

An electric cable has at least one semi-conductive layer obtained from a polymer composition having at least one polypropylene-based thermoplastic polymer material, at least one first antioxidant and at least one metal deactivator.

An example of a build material composition for three-dimensional (3D) printing includes a polyamide material and an antioxidant. The antioxidant includes an aromatic multihydrazide; or an aromatic sulfonomonohydrazide; or a hydrazide having formula (I) disclosed herein, wherein: R is null, a C1 to C12 unbranched alkyl, a C3 to C8 branched alkyl, a C2 to C8 unbranched alkylene, a C4 to C8 branched alkylene, an alicyclic compound, a polyethylene glycol, or a combination thereof; A is C═O, O=S═O, P═O, or C═S; and n is an integer ranging from 1 to 4; or formula (II) disclosed herein wherein A is C═O, O═S=O, P═O, or C═S.

##STR00001##

An example of a build material composition for three-dimensional (3D) printing includes a polyamide material and an antioxidant. The antioxidant includes an aromatic multihydrazide; or an aromatic sulfonomonohydrazide; or a hydrazide having formula (I) disclosed herein, wherein: R is null, a C1 to C12 unbranched alkyl, a C3 to C8 branched alkyl, a C2 to C8 unbranched alkylene, a C4 to C8 branched alkylene, an alicyclic compound, a polyethylene glycol, or a combination thereof; A is C═O, O=S═O, P═O, or C═S; and n is an integer ranging from 1 to 4; or formula (II) disclosed herein wherein A is C═O, O═S=O, P═O, or C═S.

##STR00001##

Provided is a rubber composition capable of forming a conveyor belt having an excellent low loss property, while also retaining high strength and high flame retardance as a rubber article. The rubber composition for a conveyor belt contains: rubber components including natural rubber and butadiene rubber; a vulcanizing agent; a vulcanization accelerator; carbon black; chlorinated paraffin; and antimony trioxide. A mass ratio of content of the natural rubber to content of the butadiene rubber (natural rubber content:butadiene rubber content) is 25:75 to 45:55.

Provided is a rubber composition capable of forming a conveyor belt having an excellent low loss property, while also retaining high strength and high flame retardance as a rubber article. The rubber composition for a conveyor belt contains: rubber components including natural rubber and butadiene rubber; a vulcanizing agent; a vulcanization accelerator; carbon black; chlorinated paraffin; and antimony trioxide. A mass ratio of content of the natural rubber to content of the butadiene rubber (natural rubber content:butadiene rubber content) is 25:75 to 45:55.