Abstract:
High dropping-point lithium-complex grease composition naving improved anti-noise properties, comprising a lubricating oil and the following components:
(a) at least one lithium soap selected from the group consisting of the lithium salts of C 10 to C 34 fatty acids and C 12 to C 24 hydroxy fatty acids, (b) at least one lithium salt selected from the group consisting of the dilithium salts of C 4 to C 12 aliphatic dicarboxylic acids, the lithium salts of boric acids, and the lithium salts of aromatic hydroxy carboxylic acids, and (c) a high-molecular viscosity-index improver, and/or succinimide-type dispersant and/or metal salt detergent.
Abstract:
Asbestiform crystalline calcium M phosphate, where M is sodium or lithium, typically having a length to average diameter ratio of at least 5:1, can be prepared by forming a melt of a source of oxygen, calcium, phosphorus and M having a mole ratio of about 15 percent to about 30 percent M 2 0, about 48 percent to about 60 percent P 2 O 5 and about 20 percent to about 37 percent CaO, cooling the melt within the range of about 500°C. to about 750°C. for a sufficient time to permit blocks of calcium M phosphate to form, and fiberizing the blocks into the asbestiform crystals. Such asbestiform crystalline calcium M phosphates are useful to prepare composites of organic polymeric materials.
Abstract translation:石棉状结晶钙中号磷酸盐,其中M是钠或锂,典型地具有的长度至少为5的平均直径之比为2:1,可以通过形成的氧,钙,磷源的熔体和具有摩尔比M来制备 的约15%至约30%的M 2 O,约48%至约60%的P 2 O 5和大约20%至约37%的CaO,将熔融物冷却约500℃的范围内,以约750℃足够长的时间 以允许钙磷酸盐的块,以形成和纤维化块到石棉状晶体。 搜索石棉状晶形钙中号磷酸盐是制备有机聚合物材料的复合材料是有用的。
Abstract:
본 발명은 (A) 1분자 중에 적어도 2개의 알케닐기를 가지는, 25℃의 동점도가 5,000~100,000mm 2 /s의 오르가노폴리실록산, (B) 하기 일반식(1)
(R 1 은 탄소수 1~6의 알킬기이며, a는 5~100의 정수이다.)로 표시되는 편말단 3관능의 가수분해성 메틸폴리실록산, (C) 10W/m·℃ 이상의 열전도율을 가지는 열전도성 충전재, (D) 1분자 중에 2개 이상 5개 이하의 규소 원자에 직결한 수소 원자(Si-H기)를 함유하는 오르가노하이드로젠폴리실록산, (E) 1분자 중에 트리아진환 및 적어도 1개의 알케닐기를 가지는 접착조제, (F) 백금 및 백금 화합물로 이루어지는 군으로부터 선택되는 촉매를 함유하여 이루어지고, 고온 가열시의 경도 상승이 적고, 신장의 감소가 억제된 열전도성 실리콘 그리스 조성물을 제공한다.
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.
Abstract:
(A) 식: R 2 SiO 2/2 로 나타내어지는 실록산 단위 80~96.5몰%, 식: RSiO 3/2 로 나타내어지는 실록산 단위 1.0~10.0몰%, 및 식: R 3 SiO 1/2 로 나타내어지는 실록산 단위 0.25~10.0몰%로 이루어진 액상 오르가노폴리실록산(식중, R은 같거나 또는 다른 1가 탄화 수소기이다.), 및 (B) 증조제로 적어도 이루어진 그리스상 실리콘 조성물을 개시한다. 증조제를 다량으로 함유시킬 수 있고, 또한 우수한 내열성을 갖는 그리스상 실리콘 조성물을 제공할 수 있다.
Abstract in simplified Chinese:本发明系提供一种具有高导热性,且保持优异的流动性,使得作业性良好,更随着微细的凹凸,降低接触热电阻后,具优异的散热性能之导热性聚硅氧组成物。进一步,于具优异的散热性能与作业性之该导热性聚硅氧润滑脂组成物之高温高湿条件下可提升耐久性,实装时具提升信赖性。其特征为由含有(A)具特定构造之25℃动黏度为10~10,000mm^2/s之有机聚硅氧烷:100容量份、(B)具特定取代基之烷氧基硅烷:0.1~50容量份、以及(C)导热性填充剂:100~2500容量份所成之导热性聚硅氧润滑脂组成物。
Abstract:
Crystalline aluminates of the formula: I. (LiAx)y.2Al(OH)3.nH2O II. Li(R)v_r.2Al(OH)3.nH2O, or III. Mm(R)v_r.(D)w_z2Al(OH)3.nH2O wherein A is one or more anions and/or negative-valence radicals or mixtures thereof; wherein, in formula I, x is a quantity of A ions or radicals sufficient to substantially satisfy the valence requirements of Li; wherein n is zero or the number of waters of hydration; wherein y is a numerical value at least sufficient to maintain the crystalline structure; wherein R is a monocarboxylic acid or dicarboxylic acid of C6 C22, including those which are OH substituted; wherein r is greater than zero and represents the number of R ions in the molecule; wherein v is the valence of R, being monovalent or divalent; wherein M is divalent Zn or Ca cations; wherein D represents inorganic anions of valence 1-3, represented by w; wherein z is equal to or greater than zero and represents the number of D anions; wherein, in formula II, vr represents an amount of R anions to substantially satisfy the valence requirements of Li; wherein, in formula III, r>z and (vr + wz) represents an amount of combined anions, R and A, to substantially satisfy the valence requirements of M; with m representing the number of divalent M cations and having a numerical value in the range of 1 to 4, are found to improve the coefficient of friction and antiwear properties of lubrication fluids subjected to shearing, rubbing, or grinding forces at elevated pressure. Also, useful compositions are prepared by incorporating into organic materials, crystalline lithium aluminates of formula I.