Abstract:
본 발명은 지방산과 소르비탄의 일종 이상의 제 1 에스테르 및 지방산과 폴리옥시알킬화 소르비탄의 일종 이상 제 2 에스테르를 함유하는 혼합물 70 내지 95 중량%, 이들 에스테르는 상기 혼합물의 중량에 대해 각각 10 내지 90 중량% 그리고 90 내지 10 중량%의 양으로 존재함; 및 - 일종 이상의 증점제 5 내지 30 중량%를 함유하는 것을 특징으로 하는 윤활 그리스에 관한 것이다. 본 발명은 또한, 본 발명에 따른 그리스의 제조 방법 그리고 윤활제로서 그리스의 용도에 관한 것이다. 본 발명은 더 나아가 본 발명의 그리스를 함유하는 수송수단 바퀴에 관한 것이다.
Abstract:
An adhesive grease composition comprises a random copolymer of ethylene and an alpha-olefin having the following formula wherein R represents a lower alkyl group, x and y are, respectively, an integer provided that x/y=0.5 to 2.0 and x+y=50 to 150, and a thickening agent in defined amounts.
Abstract:
PROBLEM TO BE SOLVED: To provide a suppressing method of damage caused by arcs between electric contacts preventing damage caused by arcs between the electric contacts by applying grease to between the electric contacts. SOLUTION: The suppressing method of damage caused by arcs between the electric contacts is that grease comprising 95-70 wt.% base oil other than fluorine-base oil and 5-30 wt.% a thickening agent and an additive is applied to the electric contact making a pair of terminals installed wiring on and off by relative movement to suppress the damage in a contact region caused by the arcs generated in the shut off of the electric contact. As the thickening agent, organic material-mixed bentonite is preferable. As the base oil, ester oil, glycol oil, or poly-α-olefin are preferable. Low viscosity base oil is preferable because energy by the arc is low. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
Grease compositions including borated epoxides as friction-reducing additives, are thickened with a proportion of metal hydroxy-containing soap grease thickener. Such compositions have unexpectedly high dropping points.
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.
Abstract:
PROBLEM TO BE SOLVED: To provide a thermally conductive silicone grease composition having high heat resistance and hardly causing oil bleeding. SOLUTION: The thermally conductive silicone grease composition at least comprises (B) a thermally conductive filler (for instance, aluminum oxide powder, zinc oxide powder, or aluminum nitride powder), and (C) an organopolysiloxane having silicon atom-binding hydrogen atoms at both termini of the molecular chain and in the molecular chain. In the formula, R 1 s are same or different monovalent hydrocarbon groups, X are same or different monovalent hydrocarbon groups or alkoxysilyl-containing groups represented by a general formula: -R 2 -SiR 1 a (OR 3 ) (3-a) (wherein R 1 is the same as the above, R 2 is an oxygen atom or an alkylene group, R 3 is an alkyl group, (a) is an integer of 0-2), and m and n are integers of 0 or larger individually. COPYRIGHT: (C)2009,JPO&INPIT