C08K5/5435

PRIMERLESS HARDCOAT COMPOSITION
20170369729 · 2017-12-28 ·

A coating composition suitable for providing a hardcoat comprising a topcoat and an epoxy modified adhesion promoter. The epoxy modified adhesion promoter comprises, in one embodiment, a molecule with the formula (1):


U-Q-R.sup.1—SiR.sup.2.sub.gR.sup.3.sub.(3-g)   (1)

wherein Q is —CH.sub.2CH(OH)CH.sub.2—O— or —CH.sub.2CH(OH)CH.sub.2—NR.sup.4—; U is: —O—(C.sub.6H.sub.hR.sup.2.sub.(4-h)—CR.sup.5—C.sub.6H.sub.hR.sup.2.sub.(4-b)—O—H.sub.2CH(OH)CH.sub.2—O).sub.i—C.sub.6H.sub.hR.sup.2.sub.(4-h)—CR.sup.5—C.sub.6H.sub.hR.sup.2.sub.(4-h)—O-J; where R.sup.2 is chosen from a C1-C10 alkyl or a substituted or unsubstituted phenyl group; R.sup.3 is chosen from an alkoxy, an acetoxy, or a ketoxime radical; R.sup.1 is a C1-C4 alkylene; g is 0-2; h is 0-4; R.sup.4 is hydrogen or —CH.sub.2CH(OH)CH.sub.2—U—; R.sup.5 is hydrogen or an alkyl; i is 0-100; and J is H, Q-R.sup.1SiR.sup.2.sub.hR.sup.3.sub.(3-h), or formula (2). The coating composition is suitable for application to a substrate without the use of a primer.

SILICONE RUBBER COMPOSITION AND WOVEN MATERIAL COATED WITH SILICONE RUBBER
20230203252 · 2023-06-29 ·

A silicone rubber composition is provided. The composition comprises: (A) a straight chain organopolysiloxane having at least two alkenyl groups in a molecule; (B) a resinous organopolysiloxane containing: SiO.sub.4/2 unit, R.sup.1.sub.2R.sup.2SiO.sub.1/2 unit and R.sup.1.sub.3SiO.sub.1/2 unit, wherein R.sup.1 independently represents an alkyl group having 1 to 12 carbon atoms and R.sup.2 represents an alkenyl group having 2 to 12 carbon atoms, and containing 0.1 to 5.0 mass % of the alkenyl groups; (C) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule; (D) a hydrosilylation reaction catalyst; (E) a reinforcing silica fine powder; and (F) an intumescent flame retardant. When the composition is coated on a woven material, such as a base material for an airbag or the like, the composition can provide the woven material with sufficient flame retardance even with a low coating amount, and the composition can suppress an aperture of the woven material.

SILICONE RUBBER COMPOSITION AND WOVEN MATERIAL COATED WITH SILICONE RUBBER
20230203252 · 2023-06-29 ·

A silicone rubber composition is provided. The composition comprises: (A) a straight chain organopolysiloxane having at least two alkenyl groups in a molecule; (B) a resinous organopolysiloxane containing: SiO.sub.4/2 unit, R.sup.1.sub.2R.sup.2SiO.sub.1/2 unit and R.sup.1.sub.3SiO.sub.1/2 unit, wherein R.sup.1 independently represents an alkyl group having 1 to 12 carbon atoms and R.sup.2 represents an alkenyl group having 2 to 12 carbon atoms, and containing 0.1 to 5.0 mass % of the alkenyl groups; (C) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule; (D) a hydrosilylation reaction catalyst; (E) a reinforcing silica fine powder; and (F) an intumescent flame retardant. When the composition is coated on a woven material, such as a base material for an airbag or the like, the composition can provide the woven material with sufficient flame retardance even with a low coating amount, and the composition can suppress an aperture of the woven material.

CURABLE RESIN COMPOSITION, METHOD FOR PRODUCING CURABLE RESIN COMPOSITION, AND METHOD FOR MEASURING SURFACE TACKINESS OF VISCOELASTIC MATERIAL

Provided is a curable resin composition which can be cured to form a material (cured product) that has low tack properties and resists adhesion of garbage. The present invention provides a curable resin composition comprising polysiloxane (A) having not less than 2 alkenyl groups in the molecule and polysiloxane (B) having not less than 2 hydrosilyl groups in the molecule, wherein (T+Q)/D>0.3 and M+D+T+Q=1 are satisfied regarding all silicon atoms contained therein, the amount of the hydrosilyl groups with respect to 1 mol of aliphatic carbon-carbon double bonds present therein is 0.9 to 5.0 mol, and a cured product of the curable resin composition exhibits a separation strength of not more than 0.40 N per mm.sup.2 in separation load evaluation and/or a total separation load of not more than 0.018 N.Math.mm per mm.sup.2.

CURABLE RESIN COMPOSITION, METHOD FOR PRODUCING CURABLE RESIN COMPOSITION, AND METHOD FOR MEASURING SURFACE TACKINESS OF VISCOELASTIC MATERIAL

Provided is a curable resin composition which can be cured to form a material (cured product) that has low tack properties and resists adhesion of garbage. The present invention provides a curable resin composition comprising polysiloxane (A) having not less than 2 alkenyl groups in the molecule and polysiloxane (B) having not less than 2 hydrosilyl groups in the molecule, wherein (T+Q)/D>0.3 and M+D+T+Q=1 are satisfied regarding all silicon atoms contained therein, the amount of the hydrosilyl groups with respect to 1 mol of aliphatic carbon-carbon double bonds present therein is 0.9 to 5.0 mol, and a cured product of the curable resin composition exhibits a separation strength of not more than 0.40 N per mm.sup.2 in separation load evaluation and/or a total separation load of not more than 0.018 N.Math.mm per mm.sup.2.

Self-cleaning, dirt pick-up resistant compositions for roof coatings
11680171 · 2023-06-20 · ·

Silicone compositions and methods of using the compositions are provided. The silicone coatings can exhibit improved dirt pick-up resistance and cleanability. The silicone compositions include a polysiloxane, at least one surfactant, and optionally one or more of a pigment, a filler, a crosslinker, an adhesion promoter, a catalyst, additives or solvents.

Self-cleaning, dirt pick-up resistant compositions for roof coatings
11680171 · 2023-06-20 · ·

Silicone compositions and methods of using the compositions are provided. The silicone coatings can exhibit improved dirt pick-up resistance and cleanability. The silicone compositions include a polysiloxane, at least one surfactant, and optionally one or more of a pigment, a filler, a crosslinker, an adhesion promoter, a catalyst, additives or solvents.

Organic Silicone Resin Composition and Pre-preg, Laminate, Copper-clad Laminate, and Aluminum Substrate that Use the Composition
20170349750 · 2017-12-07 ·

The present invention relates to an organic silicone resin composition and a prepreg, a laminate, and an aluminum substrate that use the composition. The organic silicone resin composition comprises in terms of parts by weight: 100 parts of a condensation-type silicone resin, 0.0001-2 parts of a catalyst, and 0.001-10 parts of an additive. The organic silicone resin composition has the advantages of high heat resistance, halogen-free and phosphorus-free flame retardancy, improved peel strength with copper foil, and low coefficient of expansion, and is applicable in manufacturing the pre-preg, the laminate, and the aluminum substrate for used in a high-performance printed circuit.

Organic Silicone Resin Composition and Pre-preg, Laminate, Copper-clad Laminate, and Aluminum Substrate that Use the Composition
20170349750 · 2017-12-07 ·

The present invention relates to an organic silicone resin composition and a prepreg, a laminate, and an aluminum substrate that use the composition. The organic silicone resin composition comprises in terms of parts by weight: 100 parts of a condensation-type silicone resin, 0.0001-2 parts of a catalyst, and 0.001-10 parts of an additive. The organic silicone resin composition has the advantages of high heat resistance, halogen-free and phosphorus-free flame retardancy, improved peel strength with copper foil, and low coefficient of expansion, and is applicable in manufacturing the pre-preg, the laminate, and the aluminum substrate for used in a high-performance printed circuit.

Coating composition
09834699 · 2017-12-05 · ·

A coating composition is provided comprising a hydrophilic characteristic-effecting material compound. The production of the hydrophilic characteristic-effecting material compound is effected by admixing of operative starting materials. The operative starting materials include a superwetter material and an adhesion promoting agent material. The hydrophilic characteristic-effecting material compound includes a superwetter material-derived coating composition material fraction and an adhesion promoting agent material-derived material fraction. The adhesion promoting agent material-derived coating composition material fraction is configured for interacting with a substrate such that, in response to, at least, contacting between the coating composition and the substrate, adhesion of an operative surface material to the substrate is effected.