The present invention provides a paraffin wax having a congealing point according to ASTM D938 of at least 100° C. and a Saybolt colour according to ASTM D156 of at least 25 cm.

Provided is an interlayer film for laminated glass capable of effectively enhancing the sound insulating property at 6300 Hz while effectively preventing deterioration in sound insulating property at 3150 Hz in laminated glass. An interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and includes a resin layer containing a resin and a plasticizer. The interlayer film has a resonance frequency X of 550 Hz or more and 740 Hz or less, a loss factor Y in a secondary mode of 0.35 or more, and satisfies a formula: Y>0.0008X−0.142 in a measurement of resonance frequency in a secondary mode in a damping test for laminated glass according to a central exciting method of laminated glass, when the laminated glass is obtained by arranging the interlayer film between two glass plates of 25 mm wide, 300 mm long and 2 mm thick.

Provided is an interlayer film for laminated glass capable of effectively enhancing the sound insulating property at 6300 Hz while effectively preventing deterioration in sound insulating property at 3150 Hz in laminated glass. An interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and includes a resin layer containing a resin and a plasticizer. The interlayer film has a resonance frequency X of 550 Hz or more and 740 Hz or less, a loss factor Y in a secondary mode of 0.35 or more, and satisfies a formula: Y>0.0008X−0.142 in a measurement of resonance frequency in a secondary mode in a damping test for laminated glass according to a central exciting method of laminated glass, when the laminated glass is obtained by arranging the interlayer film between two glass plates of 25 mm wide, 300 mm long and 2 mm thick.

This invention is based upon the unexpected discovery that rice husk ash silica (synthetic amorphous silica from rice husk ash) provides an exceptionally good combination of properties when used in certain tire tread rubber formulations, such as an excellent combination of traction, tread-wear, and rolling resistance. These tread rubber formulations are comprised of a blend of high cis-1,4-polybutadiene rubber and a solution styrene-butadiene rubber which is preferably functionalized with amine groups, siloxy groups, thiol groups, carboxyl groups, or groups that are reactive with hydroxyl groups present on the precipitated rice husk ash silica. The use of such rice husk silica as a reinforcing-filler in rubber formulations is also highly desirable because such silica is a sustainable resource (bio-renewable) which is derived from an agricultural waste material which would otherwise be discarded as an undesirable waste product.

This invention is based upon the unexpected discovery that rice husk ash silica (synthetic amorphous silica from rice husk ash) provides an exceptionally good combination of properties when used in certain tire tread rubber formulations, such as an excellent combination of traction, tread-wear, and rolling resistance. These tread rubber formulations are comprised of a blend of high cis-1,4-polybutadiene rubber and a solution styrene-butadiene rubber which is preferably functionalized with amine groups, siloxy groups, thiol groups, carboxyl groups, or groups that are reactive with hydroxyl groups present on the precipitated rice husk ash silica. The use of such rice husk silica as a reinforcing-filler in rubber formulations is also highly desirable because such silica is a sustainable resource (bio-renewable) which is derived from an agricultural waste material which would otherwise be discarded as an undesirable waste product.

A surface physical property modifier composition includes (A) a wax, (B) a vinyl (co)polymer, and (C) an aliphatic hydrocarbon having a carbon number of 5 to 14. Component (A) is set to be at least one selected from the group consisting of (a1) paraffin wax, (a2) microcrystalline wax, (a3) Fischer-Tropsch wax, and (a4) polyethylene wax, and component (B) is produced from at least one of (b1) a (meth)acrylonitrile, (b2) a (meth)acrylic acid having a carbon number of 1 to 4, (b3) a hydroxyethyl (meth)acrylate or hydroxypropyl (meth)acrylate, (b4) styrene, and (b5) predetermined (meth)acrylic acid alkyl esters. Component (A) is 50 to 98 parts by mass relative to 100 parts by mass of the total of (A) and (B), and component (C) is 0.001 to 1 percent by mass relative to the total amount of (A).

A surface physical property modifier composition includes (A) a wax, (B) a vinyl (co)polymer, and (C) an aliphatic hydrocarbon having a carbon number of 5 to 14. Component (A) is set to be at least one selected from the group consisting of (a1) paraffin wax, (a2) microcrystalline wax, (a3) Fischer-Tropsch wax, and (a4) polyethylene wax, and component (B) is produced from at least one of (b1) a (meth)acrylonitrile, (b2) a (meth)acrylic acid having a carbon number of 1 to 4, (b3) a hydroxyethyl (meth)acrylate or hydroxypropyl (meth)acrylate, (b4) styrene, and (b5) predetermined (meth)acrylic acid alkyl esters. Component (A) is 50 to 98 parts by mass relative to 100 parts by mass of the total of (A) and (B), and component (C) is 0.001 to 1 percent by mass relative to the total amount of (A).

A surface-treating agent for vulcanized rubber, comprising 10 to 160 parts by weight of a wax having a softening point of 40 to 160° C. and 10 to 160 parts by weight of fluororesin particles based on 100 parts by weight of the total amount of isocyanate group-containing 1,2-polybutadiene and an OH group-containing fluororesin composition that has the following formulation:

a copolymer [I] of (A) a perfluoroalkylalkyl (meth)acrylate and (B) a hydroxyl group-containing (meth)acrylate,

a polymer [II] of an acrylic acid alkyl ester,

a polymer [III] of a fluorinated olefin, and

a curing agent [IV];

wherein the weight ratio of the isocyanate group-containing 1,2-polybutadiene and the OH group-containing fluororesin composition is 50:50 to 95:5.

A surface-treating agent for vulcanized rubber, comprising 10 to 160 parts by weight of a wax having a softening point of 40 to 160° C. and 10 to 160 parts by weight of fluororesin particles based on 100 parts by weight of the total amount of isocyanate group-containing 1,2-polybutadiene and an OH group-containing fluororesin composition that has the following formulation:

a copolymer [I] of (A) a perfluoroalkylalkyl (meth)acrylate and (B) a hydroxyl group-containing (meth)acrylate,

a polymer [II] of an acrylic acid alkyl ester,

a polymer [III] of a fluorinated olefin, and

a curing agent [IV];

wherein the weight ratio of the isocyanate group-containing 1,2-polybutadiene and the OH group-containing fluororesin composition is 50:50 to 95:5.

A glueless dustless composite flooring material system providing PVC-based flooring having waterproof layers providing different qualities of hardness, wear-resistance, sound deadening, and decorative patterns, avoiding the use of moisture-susceptible compressed dust filler, with layers fused together, avoiding the manufacturing complexity and delamination risks of using glue or adhesive, with a quickly-cured, UV-cured top coating providing long-lasting high performance and shortening and simplifying the manufacturing, which can be done in a sheet-form, essentially continuous-run manner, with an ability to quickly and simply change the optional design printing and texturing produced, and having an optional underlayment layer.