Provided is an interlayer film for laminated glass which is excellent in sound insulation property and has improved sound insulation performance not only in a coincidence region but also in a mass-dominated region. The interlayer film for laminated glass includes a sound insulating layer which is formed from a composition (A) containing at least one resin (a1) selected from a thermoplastic resin and a thermosetting resin, wherein a tan δ obtained when a dynamic viscoelasticity of a sheet, which is obtained by molding the composition (A) to have a thickness of 0.8 mm, is measured at a frequency of 0.3 Hz in a tension mode has a maximal value at a temperature T.sub.A (° C.), T.sub.A (° C.) is in a range of −50 to 50° C., and the tan δ at T.sub.A (° C.) is 2.5 or more.

The present invention relates to a method for preparing a flame retardant aid, and a flame retardant resin composition including a flame retardant aid prepared by the same, wherein the method includes preparing a metal precursor solution by adding a zinc precursor and a precursor containing an M1 metal, and preparing a multi-component metal hydroxide by adding an acid or a base to the metal precursor solution to proceed with a sol-gel reaction.

The present invention relates to a method for preparing a flame retardant aid, and a flame retardant resin composition including a flame retardant aid prepared by the same, wherein the method includes preparing a metal precursor solution by adding a zinc precursor and a precursor containing an M1 metal, and preparing a multi-component metal hydroxide by adding an acid or a base to the metal precursor solution to proceed with a sol-gel reaction.

An electrical insulation composition includes a base resin containing 65 parts by mass or more and 98 parts by mass or less of a polyethylene and 2 parts by mass or more and 35 parts by mass or less of a styrene-containing resin, the polyethylene and the styrene-containing resin totaling 100 parts by mass, and 0.05 parts by mass or more and 1.0 parts by mass or less of a fatty acid amide.

An electrical insulation composition includes a base resin containing 65 parts by mass or more and 98 parts by mass or less of a polyethylene and 2 parts by mass or more and 35 parts by mass or less of a styrene-containing resin, the polyethylene and the styrene-containing resin totaling 100 parts by mass, and 0.05 parts by mass or more and 1.0 parts by mass or less of a fatty acid amide.

A flame-retardant vibration isolation rubber composition which comprises the following ingredient (A) as a rubber component and contains the following ingredients (B) to (D). This rubber composition enables excellent performances regarding flame retardancy and less smoking properties to be exhibited without impairing vibration isolation properties and physical rubber properties. In the flame-retardant vibration isolation rubber composition, ingredient (A) is a diene-based rubber, ingredient (B) is a halogen-compound flame retardant, ingredient (C) is a metal molybdate compound, and ingredient (D) is a metal hydroxide.

A flame-retardant vibration isolation rubber composition which comprises the following ingredient (A) as a rubber component and contains the following ingredients (B) to (D). This rubber composition enables excellent performances regarding flame retardancy and less smoking properties to be exhibited without impairing vibration isolation properties and physical rubber properties. In the flame-retardant vibration isolation rubber composition, ingredient (A) is a diene-based rubber, ingredient (B) is a halogen-compound flame retardant, ingredient (C) is a metal molybdate compound, and ingredient (D) is a metal hydroxide.

A crosslinking agent includes a compound represented by a formula (1), ##STR00001##
wherein R.sup.1, R.sup.2, and R.sup.3 are independently a hydrogen atom, a fluorine atom, an alkyl group, a fluoroalkyl group, or a substituted or unsubstituted aryl group, a plurality of R.sup.1 are identical to or different from each other, a plurality of R.sup.2 are identical to or different from each other, and a plurality of R.sup.3 are identical to or different from each other, provided that at least one of R.sup.1, R.sup.2, and R.sup.3 is a hydrogen atom, and at least one of R.sup.1, R.sup.2, and R.sup.3 is a fluorine atom or a fluorine atom-containing group; m is an integer from 2 to 6; l is an integer from 0 to 2; and each hydrogen on the benzene ring(s) may be substituted.

A crosslinking agent includes a compound represented by a formula (1), ##STR00001##
wherein R.sup.1, R.sup.2, and R.sup.3 are independently a hydrogen atom, a fluorine atom, an alkyl group, a fluoroalkyl group, or a substituted or unsubstituted aryl group, a plurality of R.sup.1 are identical to or different from each other, a plurality of R.sup.2 are identical to or different from each other, and a plurality of R.sup.3 are identical to or different from each other, provided that at least one of R.sup.1, R.sup.2, and R.sup.3 is a hydrogen atom, and at least one of R.sup.1, R.sup.2, and R.sup.3 is a fluorine atom or a fluorine atom-containing group; m is an integer from 2 to 6; l is an integer from 0 to 2; and each hydrogen on the benzene ring(s) may be substituted.

A crosslinking agent includes a compound represented by a formula (1), ##STR00001##
wherein R.sup.1, R.sup.2, and R.sup.3 are independently a hydrogen atom, a fluorine atom, an alkyl group, a fluoroalkyl group, or a substituted or unsubstituted aryl group, a plurality of R.sup.1 are identical to or different from each other, a plurality of R.sup.2 are identical to or different from each other, and a plurality of R.sup.3 are identical to or different from each other, provided that at least one of R.sup.1, R.sup.2, and R.sup.3 is a hydrogen atom, and at least one of R.sup.1, R.sup.2, and R.sup.3 is a fluorine atom or a fluorine atom-containing group; m is an integer from 2 to 6; l is an integer from 0 to 2; and each hydrogen on the benzene ring(s) may be substituted.