摘要:
A surface treating agent composition of fluorine-containing-oil-in-hydrocarbon-containing-oil type emulsion prepared by emulsifying a liquid fluorine-containing oil and a liquid hydrocarbon-containing oil by using a polymeric surfactant having a fluorine-containing segment and a hydrocarbon-containing segment in a molecule has excellent long-term stability.
摘要:
A composition for preventing graying of the hair and restoring grayed hair to its natural color comprises an effective amount of one member selected from the group consisting of cAMP compounds such as 8-butylthio cAMP-Na or 8-methoxy cAMP-Na and water. The composition can prevent graying of the hair and restoring grayed hair to its natural color upon application to the scalp, the effective component is very stable even in the form of compositions containing water and the composition does not cause quality deteriorations such as giving out of bad smell.
摘要:
Disclosed is a fluorine-containing polymer prepared by polymerizing (I) a polyfluoroalkyl group-containing (meth)acrylate which is substituted at alpha-position, in the presence of (II) a blocked isocyanate compound. A water- and oil-repellent composition containing the fluorine-containing polymer can impart the excellent water- and oil-repellency, and excellent durability thereof to substrates.
摘要:
Disclosed is a fluorine-containing polymer prepared by polymerizing: (I) a polyfluoroalkyl group-containing (meth)acrylate, in the presence of: (II) an isocyanate compound blocked with a pyrazole compound or a malonate ester. A water- and oil-repellent composition containing the fluorine-containing polymer can impart the excellent water- and oil-repellency, and excellent durability thereof to substrates.
摘要:
Disclosed is a fluorine-containing copolymer having sufficient stability in water, which is capable of providing paper with sufficient oil resistance. The fluorine-containing polymer contains, as essential components, (a) a fluorine-containing monomer represented by general formula (I) CH2═C(—X)—C(═O)—Y—[—(CH2)m—Z—]p—(CH2)n—Rf (wherein X represents a hydrogen atom; Y represents —O— or —NH—; Z represents a direct bond, —S— or —SO2—; Rf represents a fluoroalkyl group having 1-6 carbon atoms; m is a number of 1-10; n is a number of 0-10; and p is 0 or 1) and (b) an alkoxy group-containing monomer represented by general formula (II) CH2═C(X′)—C(═O)—O—(RO)q—H (wherein X′ represents a hydrogen atom or a methyl group; R represents an alkylene group having 2-4 carbon atoms wherein a part or all of hydrogen atoms may be substituted by a hydroxyl group; and q represent an integer of 1-50). The fluorine-containing polymer does not contain a monomer having an amino group.
摘要:
Provided is an underwater posture stabilization system which, by being attached to various underwater equipment such as undersea equipment and underwater vehicles having different shapes and positions of the center of gravity according to their purpose and the like, allows simply and reliably setting their posture in water (basic posture), is excellent in versatility, is not only excellent in posture stability since, when the posture inclines under the effect and the like of tidal currents and pulsating currents, a moment to restore the posture to its original posture naturally acts, but is also capable of easily changing the posture as needed, and also is capable of stably controlling the posture even in the presence of complicated tidal currents and pulsating currents, and is excellent in reliability, stability, and certainty of posture control. The underwater posture stabilization system includes a frame to be attached to an apparatus body of the underwater equipment, a pair of sliding portions arranged so as to be freely movable back and forth on both side portions of the frame, a support member freely movable up and down which is fixed at a lower end thereof to each sliding portion, and arranged upward or obliquely upward, and a floating body arranged at a tip of each support member.
摘要:
A textile having excellent water- and oil-repellency can be obtained by a method of preparing a treated textile, having steps of: (1) preparing a treatment liquid comprising a water- and oil-repellent agent, (2) adjusting pH of the treatment liquid to at most 7, preferably at most 3, (3) applying the treatment liquid to a textile, (4) treating the textile with steam, and (5) washing the textile with water and dehydrating the textile, wherein the water- and oil-repellent agent is at least one fluorine-containing compound selected from the group consisting of a fluorine-containing polymer and a fluorine-containing low molecular weight compound, and the water- and oil-repellent agent or the treatment liquid contains an organic salt.
摘要:
The invention relates to an internal gear pump including: a rotor member including an outer rotor provided with inner teeth to which a torque supplied from a driving device is transmittable; an inner rotor provided with outer teeth engageable with the inner teeth of the outer rotor so to be driven by a rotation of the outer rotor, wherein a rotation axis of the inner rotor is eccentric with respect to a center of the rotor member; a pair of housings provided on opposite sides of the rotor member and the inner rotor to support the rotor member and the inner rotor; and at least one rolling bearing provided between at least one of the housings and the rotor member.
摘要:
A fluorine-containing urethane compound of the general formula: [Rf-A1-(X1(OH))—(Y1)a—OC(═O)NH—]m I [—NHC(═O)O—Y2]n[—NHC(═O)O—((ClCH2—)X2O)b—R1]k (1) wherein I is a group remaining after an isocyanate group is removed from a polyisocyanate compound, Rf is a perfluoroalkyl group having 2 to 21 carbon atoms, A1 is a direct bond or a divalent organic group having 1 to 21 carbon atoms, X1 and X2 are trivalent linear or branched aliphatic group having 2 to 5 carbon atoms, Y1 is a divalent organic group having 0 to 5 carbon atoms and 0 to 2 nitrogen atoms (provided that at least one carbon atom or nitrogen atom is present) and at least one hydrogen atom, Y2 is a monovalent organic group optionally having a hydroxyl group, and R1 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms, can impart high water- and oil-repellency.
摘要:
A fish-type underwater navigation body includes a caudal turning section provided for a caudal section of a main unit, a pair of first side turning sections provided in front lower sections of the main unit, and a pair of second side turning sections provided in side lower sections between a center section and the caudal section in the main unit. The fish-type underwater navigation body gets propulsion by turning the caudal turning section. Also, the pair of first side turning sections, the pair of second side turning sections and the caudal turning section function for attitude control of the fish-type underwater navigation body.