Abstract:
Low bleed silicone grease compositions are prepared by blending high viscosity silicone oils with filler materials and/or silicone elastomers. Greases comprise three main types: I) grease comprising high viscosity silicone oil and filler material, II) grease comprising high viscosity silicone oil and silicone elastomer, and III) grease comprising high molecular weight silicone oil and filler material and silicone elastomer.
Abstract:
Boron soap compounds are provided. Lubricating grease compositions are provided. The lubricating grease compositions include a lubricating oil and at least one boron soap compound. The lubricating grease compositions can optionally include one or more additive.
Abstract:
La présente invention a pour objet une composition de graisse comprenant: une ou plusieurs huiles de base d'origine minérale, synthétique ou naturelle, un épaississant composé majoritairement d'un ou plusieurs savons d'aluminium simples ou complexes, un ou plusieurs dithiocarbamates de molybdène, du graphite. Utilisation pour la lubrification des systèmes ouverts.
Abstract:
The invention relates to thermally conductive greases that may contain carrier oil(s), dispersant(s), and thermally conductive particles, wherein the thermally conductive particles are a mixture of at least three distributions of thermally conductive particles, each of the at least three distributions of thermally conductive particles having an average (D 50 ) particle size which differs from the other average particle sizes by at least a factor of five. The thermally conductive greases of the invention exhibit desirable rheological behavior during installation/ application and during use of devices involving these materials.
Abstract:
The invention relates to thermally conductive greases that may contain carrier oil(s), dispersant(s), and thermally conductive particles, wherein the thermally conductive particles are a mixture of at least three distributions of thermally conductive particles, each of the at least three distributions of thermally conductive particles having an average (D 50 ) particle size which differs from the other average particle sizes by at least a factor of five. The thermally conductive greases of the invention exhibit desirable theological behavior during installation/ application and during use of devices involving these materials.
Abstract:
The present invention relates to lubricant compositions and can be used for treatment of friction units in different machines and mechanisms in manufacturing processes, the purpose of which is modification of friction surfaces. The basis of the invention is the improvement of lubricant composition, in which as the consequence of the additional use of thickener and wax, the viscosity of lubricant composition sufficient for conversation of uniform distribution of solid component in lubricant composition in broad temperature range is provided; and at the expense of that, the possibility of conservation of lubricant composition in any packaging and bulks, which are usable even under operating conditions of machines and mechanisms, is reached. The lubricant composition acquires the state of gel, that is convenient to put on any friction surface, to deposit on a zone of friction of any friction units. The lubricant composition ensures the receiving of engineering results similar to those, which solid components exhibit using fine-dispersed powder on basis of natural minerals from flaky silicates series and at the same time the sedimentation properties of lubricant composition permit its continuous conservation in broad temperature range without variation of lubrication and modification properties.
Abstract:
본 발명은 캐리어 오일(들), 분산제(들) 및 열전도성 입자를 포함할 수 있는 열전도성 그리스에 관한 것이며, 여기서, 열전도성 입자는 적어도 세 가지의 열전도성 입자 분포들의 혼합이고, 적어도 세 가지의 열전도성 입자 분포들의 각각은 다른 평균 입자 크기들과 적어도 5배만큼 상이한 평균 (D 50 ) 입자 크기를 갖는다. 본 발명의 열전도성 그리스는 절연/도포 동안에 그리고 이들 재료를 수반하는 장치의 사용 동안에 바람직한 유동학적 거동을 나타낸다. 열전도성, 그리스, 캐리어 오일, 분산제, 입자 분포
Abstract:
A thermally conductive silicone grease composition is provided to have a high thermal conductivity and an excellent heat-radiating property, exhibit good workability by maintaining good flowability, and improve stability or lifespan of electronic equipment. The thermally conductive silicone grease composition comprises (A) 100 parts by volume of organopolysiloxane which is represented by a formula 1 and has a kinematic viscosity of 10-10,000mm^2/s, (B) 0.1-50 parts by volume of an alkoxysilane represented by a formula 2 of R^3_cR^4_dSi(OR^5)_(4-c-d), and (C) 100-2500 parts by volume of a thermally conductive filler. In the formula 1, each of R^1s is independently a substituted or unsubstituted monovalent hydrocarbon group and R^2 is independently an alkyl group, alkoxyalkyl group, alkenyl group, or acyl group, a is an integer of 5-100, and b is an integer of 1-3. In the formula 2, R^3 is independently a C9-15 alkyl group, R^4 is independently a substituted or unsubstituted C1-8 monovalent hydrocarbon group, R^5 is independently a C1-6 alkyl group, c is an integer of 1-3, d is an integer of 0-2, with the proviso that c+d is an integer of 1-3.
[상기 화학식에서, R 1 은 동일하거나 상이한 1가 탄화수소 그룹을 나타내며; X는 동일하거나 상이한 1가 탄화수소 그룹 또는 화학식 -R 2 -SiR 1 a (OR 3 ) (3-a) (여기서, R 1 은 앞서 언급한 그룹을 나타내며, R 2 는 산소 원자 또는 알킬렌 그룹을 나타내고, R 3 은 알킬 그룹을 나타내며, "a"는 0 내지 2 범위의 정수이다)의 알콕시실릴-함유 그룹을 나타내고; "m" 및 "n"은 각각 0 이상의 정수이다] 열전도성 충전제(B) 및 양 분자 말단 및 분자 쇄에 규소-결합된 수소 원자를 갖는 오가노폴리실록산(C) 를 적어도 포함하는, 열전도성 실리콘 그리스 조성물은 우수한 내열성 및 감소된 오일 블리딩(oil bleeding)을 특징으로 한다.
Abstract:
A thermally conductive silicone grease composition comprising at least the following components: an organopolysiloxane (A) represented by the following general formula: [wherein R1 designates identical or different univalent hydrocarbon groups; X designates identical or different univalent hydrocarbon groups or alkoxysilyl-containing groups of the following general formula: —R2—SiR1a(OR3)(3-a) (wherein R1 designates the previously mentioned groups; R2 designates oxygen atoms or alkylene groups; R3 designates alkyl groups; and ‘a’ is an integer ranging from 0 to 2); and ‘m’ and ‘n’ are integers equal to or greater than 0, respectively]; a thermally conductive filler (B); and an organopolysiloxane (C) having silicon-bonded hydrogen atoms on both molecular terminals and in the molecular chains; is characterized by excellent resistance to heat and reduced oil bleeding.