53 results about "Aliphatic unsaturated hydrocarbon" patented technology

A composition comprising: (a) one or more copolymers selected from the group consisting of (I) a copolymer of ethylene and vinyl acetate containing about 10 to about 50 percent by weight vinyl acetate and having a melt mass flow rate of about 1 to about 100 grams per 10 minutes; (II) a copolymer of ethylene and ethyl acrylate containing about 10 to about 50 percent by weight ethyl acrylate and having a melt mass flow rate of about 1 to about 100 grams per 10 minutes; and (III) a copolymer of ethylene and butyl acrylate containing about 10 to about 50 percent by weight butyl acrylate and having a melt mass flow rate of about 1 to about 100 grams per 10 minutes, and based upon 100 parts by weight of component (a): (b) about 55 to about 200 parts by weight of a linear copolymer of ethylene and an alpha-olefin having 3 to 12 carbon atoms, the copolymer having a melt mass flow rate of about 0.1 to about 30 grams per 10 minutes and a density of 0.870 to 0.944 gram per cubic centimeter; (c) about 5 to about 50 parts by weight of polypropylene having a melt mass flow rate of about 0.5 to about 30 grams per 10 minutes and a density of 0.900 to 0.920 gram per cubic centimeter; (d) about 2 to about 50 parts by weight of an organopolysiloxane having the following formula: R1xR2ySiO(4-a-b)/2 wherein R1 is an aliphatic unsaturated hydrocarbon group; R2 is an unsubstituted or substituted monovalent hydrocarbon group excluding aliphatic unsaturated hydrocarbon groups; x is equal to or greater than 0 but less than 1; y is greater than 0.5 but less than 3; x+y is greater than 1 but less than 3; a is greater than 0 but equal to or less than 1; and b is equal to or greater than 0.5 but equal to or less than 3; (e) about 10 to about 350 parts by weight of carbon black; and (f) optionally, up to about 2 parts by weight of an organic peroxide.

The invention discloses a conductive liquid silicon rubber-based adhesive (A), which comprises 100 to 200 mass parts of aliphatic unsaturated hydrocarbon-terminated organic polybisiloxane (a), 10 to 60 mass parts of silica reinforcing filler (b), 10 to 60 mass parts of conductive filler (c) and 5 to 25 mass parts of structural controller (d). In addition, the invention also discloses a conductiveliquid silicon rubber composition, which consists of the component (A) and a component (B) according to a mass ratio of 1:1. The component (A) comprises 100 mass parts of the conductive liquid silicon rubber-based adhesive and 0.05 to 0.5 mass part of addition reaction catalyst; and the component (B) comprises 100 mass parts of the conductive liquid silicon rubber-based adhesive, 2 to 10 mass parts of crosslinking agent (h), 0.04 to 0.5 mass part of addition reaction inhibitor (i) and 0.03 to 2.0 mass parts of pigment (j). The invention also discloses preparation methods and use of the adhesive and the composition.

A conductive fluoro-resin composition of the addition reaction curing type is provided comprising (A) a reactive fluorinated polyether compound comprising fluorinated polyether units and having at least two aliphatic unsaturated hydrocarbon radicals in a molecule, (B) a compound having at least two hydrogen atoms each directly attached to a silicon atom, (C) a platinum group metal catalyst, and (D) silver particles. The composition cures into rubbery parts having improved heat resistance, weather resistance and solvent resistance and optionally forming firm bonds to various substrates.

A silicone composition that contains (A) an organopolysiloxane having at least two aliphatic unsaturated hydrocarbon groups per molecule, (B) a filler containing an aluminum powder and a zinc oxide powder, (C) an organohydrogenpolysiloxane having two or more silicon-bonded hydrogen atoms per molecule, and (D) a platinum group metal catalyst, in which a cured product of the silicone composition exhibits a ratio of a storage elastic modulus after 3,600 seconds from the start of measurement to a storage elastic modulus after 7,200 seconds from the start of measurement of 0.7 or less, the storage elastic modulus G′ being measured by constructing a program for holding a sample at 150° C. for 7,200 seconds after the sample is heated from 25° C. to 125° C. at a temperature increase rate of 10° C./min, from 125° C. to 145° C. at a temperature increase rate of 2° C./min, and from 145° C. to 150° C. at a temperature increase rate of 0.5° C./min.

A fluorosilicone rubber composition is provided comprising (A) a first organopolysiloxane having the formula: R¹_aR²_bR³_cSiO_(4-a-b-c)/2 wherein R¹ is trifluoropropyl, R² is an aliphatic unsaturated hydrocarbon group, R³ is an aliphatic saturated hydrocarbon or aromatic hydrocarbon group, (B) a silica filler, (C) a second organopolysiloxane having formula (2) wherein R⁴ is an aliphatic unsaturated hydrocarbon group or the like, and (D) a cure catalyst. The fluorosilicone rubber composition affords satisfactory adhesion at the interface with dimethylsilicone rubber even when the molding pressure is low.

A resinous interior material is provided which comprises 10 to 45 parts by mass of an ethylene/vinyl acetate copolymer, 10 to 90 parts by mass of a polyolefin resin, 10 to 90 parts by mass of either a block copolymer of styrene and one or more aliphatic unsaturated hydrocarbon compounds or a product of hydrogenation of the copolymer (styrene/(poly)olefin block copolymer), and 100 to 700 parts by mass of an inorganic filler. This resinous interior material contains neither halogens nor plasticizers such as phthalic esters, can be used as a substitute for interior materials made of PVC resins, and has excellent adhesion to adhesives and waxes heretofore in use for interior materials. In addition, this resinous interior material is markedly superior in processability, applicability, and durability to other interior materials made of non-halogen resins. Especially when the ethylene/vinyl acetate copolymer has a melt flow rate higher by at least 20 g/10 min than the MFR's of the other resins and the styrene/(poly)olefin block copolymer has a glass transition temperature (T_g or tan 6 absorption) around ordinary temperature, then the interior material is satisfactory in conformability to substrates, marring resistance, and abrasion resistance.

Provided is a silicone composition exhibiting a favorable adhesiveness even when containing a large amount of a thermal conductive filler. The silicone composition contains specific amounts of

• (A) an organopolysiloxane having at least two aliphatic unsaturated hydrocarbon groups in one molecule and exhibiting a kinetic viscosity of 60 to 100,000 mm²/s at 25° C.;
• (B) a silicone resin having at least one aliphatic unsaturated hydrocarbon group in one molecule;
• (C) a filler including an aluminum powder and a zinc oxide powder;
• (D) a organohydrogenpolysiloxane represented by the following general formula (1);
• (E) a organohydrogenpolysiloxane represented by the following general formula (2);
• (F) a hydrolyzable organopolysiloxane represented by the following general formula (3);

A fluorosilicone rubber composition including: (A) an organopolysiloxane containing trifluoropropyl groups and monovalent aliphatic unsaturated hydrocarbon groups, with a viscosity at 25° C. of not less than 10,000 mPa·s, represented by a specific average composition formula, in an amount of 100 parts by mass, (B) a silica-based filler, in an amount of 2 to 100 parts by mass, (C) a hydrotalcite-based inorganic anion exchanger, in an amount of 0.1 to 20 parts by mass, and (D) a curing agent, in an effective amount. Also disclosed is a cured product obtained by curing the composition. The composition forms a molded item that exhibits minimal deterioration in physical properties even when exposed to heat at temperatures of 200° C. or higher.

A HMPSA is provided that preferably includes at least a) from 30 to 50% of a mixture of triblock and diblock styrenic copolymers having an overall styrene content comprised between 14 and 40%, b) from 40 to 55% of a tackifying resin with a softening temperature comprised between 70 and 150° C. obtainable by hydrogenating, polymerizing or copolymerizing mixtures of aliphatic unsaturated hydrocarbons having about 5, 9 or 10 carbon atoms; c) from 4 to 20% of a hydrocarbon oil with an aromatic content less than 15%; d) from 1 to 6% of a filler selected among calcium carbonate or a low molecular weight homopolymer or copolymer of polyethylene. A laminated system is also provided that includes at least an adhesive layer utilizing the HMPSA and paper facestock. Also included are PSA labels obtainable from the laminated system with a reduced tendency to discolor after storage.

It is to provide a lubricating oil composition for a compression refrigerator, which is excellent in the thermal/chemical stability even when used in a compression refrigerator that uses a saturated fluorinated hydrocarbon refrigerant having a lower global warming potential and a fewer carbon atoms, by including in a base oil an organic compound having a double bond in a molecule, which is at least one kind selected from an organic compound having at least two non-conjugated double bonds in the molecule, a terpene compound having a double bond in the molecule, and C₁₂ to C₃₀ aliphatic unsaturated hydrocarbon having one double bond in the molecule.

Provided are a one-pack addition curable silicone composition compatible with both a good long-term storage property at room temperature under conditions whereby air is blocked to a constant level and the advance of an addition curing reaction at room temperature by being applied in a thin film of 1500 μm or less and exposed to air, which could not be obtained by conventional curable heat-dissipating grease, and a method for storing the same, and a method for curing this composition. A one-pack addition curable silicone composition having as essential ingredients: (A) organopolysiloxane having silicon-atom-bonded aliphatic unsaturated hydrocarbon groups and a specific kinematic viscosity; (B) one or more thermally conductive fillers selected from metals, metal oxides, metal hydroxides, metal nitrides, metal carbides, and allotropes of carbon; (C) organohydrogenpolysiloxane; and (D) a platinum group metal complex having an organic phosphorus compound represented by formula (1)

R¹_x—P—(OR¹)_3-x   (1)

(R¹ is a monovalent hydrocarbon group, x is 0-3) as a ligand.

A gasket rubber product made of a cured material of a fluorosilicone rubber composition containing: 100 parts by weight of an organopolysiloxane expressed by the following average composition formula:

R¹_aR²_bR³_cSiO_{(4−a−b−c)/2}

wherein R¹ indicates a trifluoropropyl group, R² indicates a non-substituted or substituted monovalent aliphatic unsaturated hydrocarbon group having 2 to 8 carbon atoms, R³ indicates a non-substituted monovalent aliphatic saturated hydrocarbon group or aromatic hydrocarbon group having 1 to 8 carbon atoms, provided that a, b and c are positive numbers satisfying 0.96≦a≦1.01, 0.002≦b≦0.02, 0.96≦c≦1.06 and 1.98≦a+b+c≦2.02; 5 to 100 parts by weight of a silica-based filler; and a catalyst quantity of a curing catalyst.