Patent classifications
C08K3/14
Polymeric Material Including a Uretdione-Containing Material and Inorganic Filler, Two-Part Compositions, Products, and Methods
The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and an inorganic filler. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; and an optional second hydroxyl-containing compound having a single OH group. The present disclosure also provides a two-part composition, in which the polymeric material is included in the first part and the second part includes at least one amine. Further, a method of adhering two substrates is provided, including obtaining a two-part composition; combining at least a portion of the first part with at least a portion of the second part to form a mixture; disposing at least a portion of the mixture on a first substrate; and contacting a second substrate with the mixture disposed on the first substrate. The disclosure also provides a polymerized product of the two-part composition and a battery module. Advantageously, two-part compositions can be used as coatings and adhesive systems including high loadings of inorganic filler, such as thermally conductive filler, with handling and performance similar to existing two-part urethane systems, but with less sensitivity to water.
Polymeric Material Including a Uretdione-Containing Material and Inorganic Filler, Two-Part Compositions, Products, and Methods
The present disclosure provides a polymeric material including a polymerized reaction product of a polymerizable composition including components and an inorganic filler. The components include a uretdione-containing material including a reaction product of a diisocyanate reacted with itself; a first hydroxyl-containing compound; and an optional second hydroxyl-containing compound having a single OH group. The present disclosure also provides a two-part composition, in which the polymeric material is included in the first part and the second part includes at least one amine. Further, a method of adhering two substrates is provided, including obtaining a two-part composition; combining at least a portion of the first part with at least a portion of the second part to form a mixture; disposing at least a portion of the mixture on a first substrate; and contacting a second substrate with the mixture disposed on the first substrate. The disclosure also provides a polymerized product of the two-part composition and a battery module. Advantageously, two-part compositions can be used as coatings and adhesive systems including high loadings of inorganic filler, such as thermally conductive filler, with handling and performance similar to existing two-part urethane systems, but with less sensitivity to water.
Yaw brake pad and method of producing the same
Provided are a yaw brake pad and a method of producing the same, which relate to the technical field of friction material. The yaw brake pad is prepared from, by weight, the following main ingredients: 70-75 parts of polyether ether ketone, 10-20 parts of carbon fiber, 3-5 parts of glass fiber and 3-5 of graphite. It alleviates the technical problem that the metal-based friction materials generally for producing current international and domestic yaw brake pads are likely to rust, harmful to dual discs, and produce screechy. It has not only significantly improved mechanical properties and high temperature tolerance, much lower hardness, less wear to dual discs, and lower noise, but also improved friction stability and adaptability to working conditions, and thus can effectively satisfy the demand of the wind driven generator for yaw braking at a low speed.
Yaw brake pad and method of producing the same
Provided are a yaw brake pad and a method of producing the same, which relate to the technical field of friction material. The yaw brake pad is prepared from, by weight, the following main ingredients: 70-75 parts of polyether ether ketone, 10-20 parts of carbon fiber, 3-5 parts of glass fiber and 3-5 of graphite. It alleviates the technical problem that the metal-based friction materials generally for producing current international and domestic yaw brake pads are likely to rust, harmful to dual discs, and produce screechy. It has not only significantly improved mechanical properties and high temperature tolerance, much lower hardness, less wear to dual discs, and lower noise, but also improved friction stability and adaptability to working conditions, and thus can effectively satisfy the demand of the wind driven generator for yaw braking at a low speed.
THERMALLY CONDUCTIVE SHEET, LAMINATE, AND SEMICONDUCTOR DEVICE
A thermally conductive sheet has a thermally conductive resin composition layer, wherein the thermally conductive resin composition layer is made of a thermally conductive resin composition (1) including an inorganic filler and a binder resin (3). The inorganic filler includes a boron nitride particle (2), the content of the inorganic filler in the thermally conductive resin composition layer is 65% by volume or more, and the boron nitride particle (2) has an average aspect ratio of 7 or less, which is calculated from a major axis and a minor axis of a primary particle measured by a specific method. The thermally conductive resin composition layer has a thickness of 200 μm or less.
Propylene-Based Elastomer Compositions, Articles Thereof, and Methods Thereof
The present disclosure provides compositions comprising propylene-based elastomer, articles thereof, and methods thereof. In at least one embodiment, a composition includes a propylene-based elastomer having an Mw of about 300,000 g/mol to about 600,000 g/mol and a melt flow rate of less than about 3 g/10 min, according to ASTM D-1238 (2.16 kg weight @ 230° C.). The composition includes a thermoplastic resin. In at least one embodiment, a roofing material includes a membrane. The membrane includes a composition. The composition includes a propylene-based elastomer having an Mw of about 300,000 g/mol to about 600,000 g/mol and a melt flow rate of less than about 3 g/10 min, according to ASTM D-1238 (2.16 kg weight @ 230° C.). The roofing material further includes a base material adhered to the membrane or affixed to the membrane.
Propylene-Based Elastomer Compositions, Articles Thereof, and Methods Thereof
The present disclosure provides compositions comprising propylene-based elastomer, articles thereof, and methods thereof. In at least one embodiment, a composition includes a propylene-based elastomer having an Mw of about 300,000 g/mol to about 600,000 g/mol and a melt flow rate of less than about 3 g/10 min, according to ASTM D-1238 (2.16 kg weight @ 230° C.). The composition includes a thermoplastic resin. In at least one embodiment, a roofing material includes a membrane. The membrane includes a composition. The composition includes a propylene-based elastomer having an Mw of about 300,000 g/mol to about 600,000 g/mol and a melt flow rate of less than about 3 g/10 min, according to ASTM D-1238 (2.16 kg weight @ 230° C.). The roofing material further includes a base material adhered to the membrane or affixed to the membrane.
THERMOSETTING RESIN COMPOSITION, RESIN SHEET, AND METAL BASE SUBSTRATE
The thermosetting resin composition of the present invention includes an epoxy resin (A), a curing agent (B), and thermally conductive particles (C), in which the epoxy resin (A) includes a mesogen skeleton and has a softening point of 60° C. or lower, and a thermal conductivity λ.sub.200 of a cured product of the thermosetting resin composition at 200° C. is 12.0 W/(m.Math.K) or higher.
THERMOSETTING RESIN COMPOSITION, RESIN SHEET, AND METAL BASE SUBSTRATE
The thermosetting resin composition of the present invention includes an epoxy resin (A), a curing agent (B), and thermally conductive particles (C), in which the epoxy resin (A) includes a mesogen skeleton and has a softening point of 60° C. or lower, and a thermal conductivity λ.sub.200 of a cured product of the thermosetting resin composition at 200° C. is 12.0 W/(m.Math.K) or higher.
SHEAR THINNING THERMALLY CONDUCTIVE SILICONE COMPOSITIONS
A composition contains the following components: (a) 15 to 49.8 volume-percent of a first polysiloxane that is has a viscosity in a range of 50 centiStokes to 550 Stokes as determined according to ASTM D4283-98; (b) 0.2 to 5 volume-percent of an organoclay; (c) 50-74 volume-percent roundish or crushed thermally conductive fillers including: (i) 5 to 15 volume-percent small thermally conductive fillers having a median particle size in a range of 0.1 to 1.0 micrometers; (ii) 10 to 25 volume-percent medium thermally conductive fillers having a median particle size in a range of 1.1 to 5.0 micrometers; (iii) 25 to 50 volume-percent large thermally conductive fillers having a median particle size in a range of 5.1 to 50 micrometers; and (d) 0 to 5 volume-percent of an alkoxy functional linear polysiloxane different from the first polysiloxane and/or an alkoxy functional linear silane; where volume-percent values are relative to composition volume.