Abstract: An anionic silicone surfactant, with excellent surface tension lowering properties in aqueous and solvent systems, of the general formula ##STR1## wherein each R.sup.1 is an unsubstituted or halogen-substituted monovalent hydrocarbon group of 1-20 carbon atoms or a trialkylsiloxy group of 1-20 carbon atoms; R.sup.2 is an unsubstituted, halogen-substituted or hydroxyl-substituted bivalent hydrocarbon group of 1-10 carbon atoms, or a corresponding hydrocarbon group wherein no more than half of the carbon atoms are replaced by an oxygen atom; M is a Group A alkali metal or NR.sup.3 R.sup.4 R.sup.5 wherein R.sup.3, R.sup.4 and R.sup.5 are a hydrogen atom or a monovalent hydrocarbon group of 1-20 carbon atoms; and .sub.a is a number which lies in the range 0.ltoreq.a.ltoreq.

Abstract: An actuator is provided with a motor having a worm, a worm wheel in engagement with said worm and having a pinion-engaging part, a pinion having a worm wheel-engaging part and a rotational axis offset from the rotational axis of the worm wheel, a sector wheel having an output arm and meshing with the pinion, a contact holder, and a positional switch for switching contacts according to the engagement of the contact holder with the sector wheel. The sector wheel is sited at its starting position in a state in which the pinion-engaging part is engaged with the worm wheel-engaging part at a position opposite to the rotational axis of the pinion relative to the rotational axis of the worm wheel. The actuator is compact and uses the motor power very effectively.

Abstract: Perfluoroalkyl group containing organopolysiloxanes having a high degree of polymerization can be prepared by reacting a liquid organopolysiloxane of formula (I): R.sup.1.sub.aR.sup.2.sub.b (OH).sub.c SiO.sub.[4.(a+b+c)]/2 with an alkali metal hydroxide to form an alkali metal silanolate; reacting the alkali metal silanolate with a perfluoroalkyl group-containing organosilane of formula (II): RfR.sup.3 SiX.sub.2 to synthesize a perfluoroalkyl group-containing organopolysiloxane intermediate of formula (III): [(R.sup.1.sub.a R.sup.2.sub.b SiO).sub.m (RfR.sup.3 SiO)].sub.n ; and polymerizing the intermediate of formula (III) or a mixture of the intermediate and an organopolysiloxane of formula (IV): R.sup.5.sub.e R.sup.6.sub.g SiO.sub.[(4.(e+g)]/2 in the presence of a strongly acidic catalyst or strongly basic catalyst.

Abstract: The present invention provides a wound core having a low core loss and not susceptible to a disappearance of the core loss lowering effect due to a magnetic domain refining even when stress-relief annealing is conducted after fabrication of a steel strip into a wound core, through a process which comprises, fabricating a very thin silicon steel strip comprising by 6.5% weight or less of silicon with the balance consisting essentially of iron and having a sheet thickness of 100 .mu.m or less and a magnetic flux density (B.sub.8 value) of 1.80T or more into a wound core, subjecting the wound core to stress-relief annealing, unwinding the very thin silicon steel strip from the core, introducing into the very thin silicon steel strip a linear or dotted local strain in a direction at an angle of 45.degree. to 90.degree. to the rolling direction of the thin strip, and rewinding the thin strip onto the core.

Abstract: A silicone-based fabric finishing agent which comprises: an aminoalkyl-substituted diorganopolysiloxane; a reaction product of an aminoalkyl-substituted organopolysiloxane and an epoxy-containing organic compound; a hydrolysis product of an epoxy-containing hydrolyzable organosilane coupound; and, optionally, an aminoalkyl-substituted organopolysiloxane having a specified viscosity, each in a specified proportion is particularly suitable for the softening treatment of waddings of synthetic fibers, e.g., polyester fibers, and advantageous over conventional silicone-based fabric treatment agents with respect to the excellent softness and smoothness of the treated wadding, which is freed from the problem of discoloration or yellowing caused in the course of the heat treatment and by the lapse of time, as well as the durability of these effects to withstand dry cleaning.

Abstract: An excellently pleasant feeling of softness and elastic resilience can be imparted to a fabric material treated with the inventive fabric finishing agent which is an aqueous emulsion of a copolymer obtained by the emulsion polymerization, in an aqueous emulsion of an organopolysiloxane having radical-polymerizable groups, e.g., vinyl groups, or mercapto-substituted hydrocarbon groups, e.g., 3-mercaptopropyl groups, as the polymerization medium of an acrylic or methacrylic monomer, e.g., alkyl acrylates and methacrylates, in a specified amount relative to the amount of the organopolysiloxane. The acrylic or methacrylic monomer may be partly replaced with a polyfunctional monomer, e.g., acrylic and methacrylic acids, N-methylol acrylamide, glycidyl methacrylate, 2-hydroxyethyl methacrylate and the like, and/or a monomer of the third class, e.g., styrene and acrylonitrile. The emulsion may be further admixed with an organohydrogen polysiloxane as a crosslinking agent and a catalyst for the crosslinking reaction.

Abstract: The fabric finishing agent is a solution of a graft copolymer composed of an organopolysiloxane moiety and a grafting moiety thereon obtained by the graft copolymerization of an acrylic or methacrylic monomer, optionally, in combination with monomers of other types. The fabric finishing agent is capable of imparting various kinds of fabric materials with greatly improved soft but non-sticky feeling of touch with resilient elasticity and the effect of treatment is durable and resistant against laundering and dry cleaning.

Abstract: A calling card is printed on its paper front side with data for visual presentation. The card back side is made from a material that will accept, retain and permit the reading of encoded data by a card reading device. Data decoded by the card reader is visually displayed on a cathode ray tube and stored in a data storage device for later retrieval.

Abstract: A method of driving a motor-driven shutter for a camera having a sector opening lever which is pivotal to open and close sectors, a sector opening cam movably supported and engageable with an engagement pin provided on the sector opening lever, an actuating member for pivoting the sector opening lever through engagement between the sector opening cam and the engagement pin, and a reversible motor for driving the actuating member. The motor is temporarily suspended when the actuating member is driven to a position where the sector opening cam comes into contact with the engagement pin, and the motor is restarted to cause the engagement pin to reach a predetermined position on the sector opening cam. Thus, it is possible to obtain a stable shutter opening operation and hence increase the degree of aperture accuracy.

Abstract: A process for preparing a self-crosslinkable aminosiloxane emulsion, comprising:dispersing by emulsification in water in the presence of a cationic surface active agent and a nonionic surface active agent:(A) a specific organosilicon compound that may have a hydroxyl group and/or an alkoxy group;(B) a specific organosilicon compound having a nitrogen-containing monovalent hydrocarbon group; and(C) a specific organosilane having a hydroxyl group and/or an alkoxy group, and or a partial hydrolysis-condensation product thereof;subsequently carrying out emulsion polymerization in the presence of an alkaline catalyst; andthereafter neutralizing the reaction product.The resulting emulsion is useful as softening agents, smoothing agents or feeling improver for all sorts of textiles, and binders between fibers.

Abstract: A fiber treatment composition comprising an aqueous dispersion containing;(A) 100 parts by weight of a finely particulate epoxy group-containing organosilasesquioxane substantially represented by general unit formula (I):R.sup.1 SiO.sub.3/2 (I)wherein said organic group having an epoxy group comprises from 0.1 to 50 mol % of the whole R.sup.1 ; and;(B) from 10 to 900 parts by weight of an amino group-containing organopolysiloxane represented by general unit formula (II): ##EQU1## wherein R.sup.2 is a monovalent hydrocarbon group having 1 to 20 carbon atoms, an alkoxy group or a hydroxyl group; Z is a particular amino group; and 1<a<3, 0<b<1 and 1<a+b<3. This composition is useful for deepening colors of dyed textiles and fabrics and improving softness and feeling, even with respect to synthetic fibers.

Abstract: There is disclosed a program shutter for use in a camera. The program shutter consists of a shutter mechanism and a control portion. The shutter mechanism has sectors for defining an opening and a stepper motor for driving the sectors. The control portion produces pulses having pulse width conforming to the operating characteristic of the shutter mechanism. These pulses are used to step the motor forward or backward according to the exposure corresponding to the luminance of the subject.

Abstract: A process for preparing organopolysiloxane emulsion comprised of dispersed particles having an average particle size of 0.5.mu. or less, comprising emulsifying a liquid organopolysiloxane with use of an emulsifying agent by means of a composite emulsifying apparatus equipped with(A) a stirring means having a stirring blade capable of stirring contents of a container at a low speed over the whole of the container, and at least one stirring means selected from(B) a disc type stirring means capable of rotating at a high speed and having tooth-like projections on its peripheral edge, and(C) a stirring means having a stator and a turbine blade disposed in the inside of the stator and capable of rotating at a high speed. According to this process, an organopolysiloxane having a high viscosity up to 500,000 cP can be emulsified to prepare an emulsion of high stability.

Abstract: The invention provides a method for the preparation of a stable aqueous emulsion of a poly(silsesquioxane) without formation of gelled particles. In the method, a trialkoxysilane compound as the starting material is first emulsified in an aqueous medium containing a cationic surface active agent and a non-ionic surface active agent having a specified HLB value in the range from 16 to 20 in combination followed by the addition of an alkali catalyst and heating to effect hydrolysis and polycondensation of the trialkoxysilane.

Abstract: The inventive composition is a silicone-based softening agent for synthetic fibers such as waddings of polyester fibers without the disadvantage of yellowing caused by heat or in the lapse of time. The essential ingredients of the inventive composition are a combination of two different amino-substituted organopolysiloxanes, an opoxy-containing alkoxysilane compound such as 3-glycidyloxypropyl methyl dimethoxy silane and a monoepoxy compound such as glycidyl alcohol each in a specified amount. Characteristically, one of the amino-substituted organopolysiloxane components is a reaction product of an amino-substituted organopolysiloxane and an organic opoxy compound.

Abstract: The silicone-based fiber finishing agent is particularly suitable for synthetic fiber-made fabric materials such as waddings of polyester fibers to impart excellent softness and smoothness in touch and free from yellowing even by heating with high resistance against dry cleaning. The fiber finishing agent comprises (A) an organopolysiloxane of a substantially linear molecular structure terminated at each molecular chain end with a silanolic hydroxy group or alkoxy group and having at least one amino-substituted hydrocarbon group bonded to the silicon atom in a molecule, (B) an epoxy-containing alkoxy silane compound such as methyl dimethoxy 3-glycidyloxypropyl silane and (C) an epoxy-containing organic compound free from silicon such as glycidyl alcohol and glycidyl methacrylate.

Abstract: A novel organopolysiloxane is disclosed which has a molecular structure having, in addition to conventional monovalent hydrocarbon groups bonded to the silicone atoms, aminoalkyl groups, e.g. --CH.sub.2).sub.3 NH.sub.2 and --CH.sub.2).sub.3 NH--CH.sub.2 CH.sub.2 --NH.sub.2, and polyoxyalkylene-substituted aminoalkyl groups, e.g. --CH.sub.2).sub.3 NH--CH.sub.2 --CH(OH)--CH.sub.2 --O--C.sub.2 H.sub.4 O).sub.21 (C.sub.3 H.sub.6 O).sub.21 C.sub.8 H.sub.17. The novel organopolysiloxane, which is soluble or emulsifiable in water without using an emulsifying agent, is useful as the principal ingredient of a fabric-finishing composition and capable of imparting very pleasant touch of softness and excellent antistatic performance to the fabric materials treated therewith.

Abstract: The silicone-based textile finishing agent comprises (a) an organopolysiloxane having at least one hydrocarbyl group substituted with a phosphate ester group --PO(OR).sub.2, in which R is a monovalent hydrocarbon group, (b) an alkoxy silane having at least one organofunctional group such as amino and epoxy groups in a molecule, and, optionally, (c) a catalyst capable of promoting the reaction between the components (a) and (b), preferably, in the form of an aqueous emulsion. The textile finishing agent is capable of imparting excellent softness and slipperiness to the textile materials such as waddings of polyester or acrylic fibers treated therewith without the disadvantage of yellowing by heat treatment.

Abstract: The inventive fabric treatment agent can impart excellent hydrophilicity to fabric materials of, in particular, synthetic fibers with durability and launderability. The principal ingredient of the agent is a copolymer composed of three types of moieties including (a) a diorganopolysiloxane terminated at both molecular chain ends each with a non-silanolic hydroxy group or other active hydrogen-containing group, e.g. --SH, --COOH and --NH.sub.2, (b) a polyol compound having polyoxyalkylene linkages which is typically a polyoxyethylene glycol and (c) a diisocyanate compound which serves as a coupling agent between the moieties (a) and (b).

Abstract: The organopolysiloxane in the inventive latex is modified with phosphonate ester-containing groups such as those expressed by the formula --Si--CH.sub.2 CH.sub.2 --PO(OEt).sub.2 (Et: ethyl group) and --Si--CH.sub.2 CH.sub.2 CH.sub.2 --PO(ODd).sub.2 (Dd: dodecyl group) and exhibits excellent performance in the applications as a fabric treatment agent and the like. The inventive organopolysiloxane latex can be prepared by the polymerizing reaction of an organosilicon compound or, preferably, an organopolysiloxane and a phosphonate ester-modified alkoxysilane emulsified together in an aqueous medium containing a surface active agent of the class of the organic sulfonic acid type or a sulfate ester type ones which serves both as an emulsifier and as an acid catalyst.