This pressure-sensitive elastomer porous body is a cured product of an elastomer emulsion, which is obtained via an emulsion composition including, as a continuous phase, a liquid rubber material which is cured to form an elastomer, wherein a conductive agent is contained in an amount of 2.7-3.5 wt % with respect to the total amount of the emulsion composition, and the electric resistance value () rises as the compression ratio C (%) increases.

The present invention relates to the field of polyol components suitable for forming polyurethane foam, in particular two component polyurethane foam the resulting foams and methods for their production. The present inventors found gaseous hydrohaloolefin containing polyol components possessing improved shelf-life properties, in particular polyol components comprising a gaseous hydrohaloolefin blowing agent, a nitrogen catalyst and a tin catalyst, wherein the tin catalyst comprises a sulfur atom. The present inventors also found that the shelf-life is further improved if the nitrogen catalyst is at least partially protonated by reaction with an acid, such as an organic acid.

A rigid polyurethane foam formulation comprising a polyol composition comprising, by weight based on the weight of the polyol composition, more than 70% of at least one polyester polyol having an average hydroxyl number of from 150 to less than 300 mg KOH/g and an average functionality of at least 2; a blowing agent comprising water and an auxiliary blowing agent; a silicone copolymer surfactant; from 1% to 5% by weight based on the weight of the polyol composition, of a cyclic siloxane having a surface tension less than 21 dynes/cm at 25? C., wherein the weight ratio of the cyclic siloxane to the silicone copolymer surfactant is from 0.6 to less than 2.27; a catalyst, and optionally a flame retardant; and a polyisocyanate; such that the isocyanate index is in the range of from 180 to 500; a rigid polyurethane foam formed from the foam formulation; and a method of forming a rigid polyurethane foam.

The present invention provides water dilutable silicone emulsions comprising a silicone and a silicone polyether; a coating composition comprising the emulsions; a process of making the emulsions; and uses of the emulsions.

The present invention relates to the technical field of polymer composite materials, and specifically, to a shear thickening composite material, a preparation method therefor, and use thereof. According to the present invention, a solid composite material with shear thickening performance is prepared by limiting the types and contents of all components in raw materials. This composite material is kept soft and has a proper elastic shape under a normal state, and can be rapidly subjected to strain enhancement through local density increase when being rapidly and violently impacted or extruded, so that a significant shear thickening phenomenon is presented, namely this material is a hard solid when being impacted by an external force, then this material has an increasing strength with the increase of the external force, and this material restores to an original relaxed, soft, and elastic state when the external force is removed.

The present invention relates to the technical field of polymer composite materials, and specifically, to a shear thickening composite material, a preparation method therefor, and use thereof. According to the present invention, a solid composite material with shear thickening performance is prepared by limiting the types and contents of all components in raw materials. This composite material is kept soft and has a proper elastic shape under a normal state, and can be rapidly subjected to strain enhancement through local density increase when being rapidly and violently impacted or extruded, so that a significant shear thickening phenomenon is presented, namely this material is a hard solid when being impacted by an external force, then this material has an increasing strength with the increase of the external force, and this material restores to an original relaxed, soft, and elastic state when the external force is removed.

A composition comprising (a1) a polyether polyol, (a2) a polyolefin polyol and (a3) a polyester polyol obtainable by epoxidation of an unsaturated fatty acid ester and subsequent ring-opening reaction with a compound containing active hydrogen, can be used for the preparation of PUR foam which distinguishes by low-temperature flexibility and low dielectric loss and is suitable for filling the gap between the condenser core and the outer composite or porcelain insulator in the manufacture of resin impregnated paper (RIP) bushings.

A process for producing polyurethane foam by reacting at least one polyol component with at least one isocyanate component in the presence of at least one blowing agent and of one or more catalysts that catalyze the isocyanate-polyol and/or isocyanate-water reactions and/or the isocyanate trimerization, wherein the reaction is conducted in the presence of selected polyether-siloxane copolymers, is described.

The present invention relates to a composition suitable for production of rigid polyurethane or polyisocyanurate foams, said composition comprising at least one isocyanate component, at least one polyol component, at least one foam stabilizer, at least one urethane and/or isocyanurate catalyst, optionally water and/or blowing agent, and optionally at least one flame retardant and/or further additives, which comprises at least two different varieties 1 and 2 of polyether siloxanes as foam stabilizers, and to the use of this composition for production of foamed polyurethane or polyisocyanurate materials, preferably rigid foams.

Provided are an optical display device protecting film and an optical display device comprising the same, the optical display device protecting film comprising: a first substrate layer; and a hard coating layer formed on the first substrate layer, wherein the substrate layer is made of a thermoplastic polyurethane film, and the first substrate layer has a thickness of 100 m to 200 m and has a Shore hardness of 95 A to 98 A.