A coloring agent for the dope-dyeing viscose rayon, comprising minute spherical cured particles of an amino resin produced from formaldehyde and at least one amino compound selected from the group consisting of benzoguanamine, melamine, and urea and colored with a dye, a viscose composition containing the coloring agent, a viscose rayon obtained by spinning the composition, and a method for manufa...

Dispersion polymerized PTFE itself, if provided in an unfused state, is sufficiently capable of acting as a pressure sensitive adhesive to facilitate the formation of an initial mechanical bond between components of a laminate such that it may be subsequently heat treated in a relatively short period of time to produce a well-bonded final laminate. This fact makes it possible to prepare a laminate...

An apparatus for the easy subcutaneous insertion of a catheter into a patient is described which includes a main body member having a lockflow chamber, a stylet mounted forwardly of the body member, a chamber guard releasably mounted rearwardly of the backflow chamber and a catheter with accompanying live adaptor axially mounted on the stylet with its shaft terminating short of the stylet point. T...

Disclosed is a fastener system comprising a male or stud element with a split or bifurcated head, forming two prongs, that fit inside a female or socket sleeve. Inside the socket sleeve is an internal annular ring of lesser diameter. The stud prongs deflect when pushed in contact with the internal ring until the prongs pass the ring at which point they deflect out and lock into the sleeve. This lo...

Hybrid cell line for production of monoclonal antibody to an antigen found on normal human suppressor T cells. The hybrid is formed by fusing splenocytes from immunized CAF1 mice with P3X63Ag8U1 myeloma cells. Diagnostic and therapeutic uses of the monoclonal antibody are also disclosed.

Hybrid cell line for production of monoclonal antibody to an antigen found on essentially all normal human T cells and on approximately 95% of normal human thymocytes. The hybrid is formed by fusing splenocytes from immunized CAF1 mice with P3X63Ag8U1 myeloma cells. Diagnostic and therapeutic uses of the monoclonal antibody are also disclosed.

An automatic gain control arrangement is provided for an analog to digital (A/D) converter in a television signal processing system. A gain-controlled source of analog signals applies a video information signal to the input of an A/D converter. The A/D converter produces digitized video signal samples at an output which is coupled to a digital peak detector. The digital peak detector detects the l...

A hotplate has on the bottom of its hotplate body (11) a cover plate (15), through which is passed an electric conductor (18) mounted in an insulating bushing (19) and which only slightly projects over the end of the insulating bushing (19). For automatically placing the hotplate in a stove unit, electrical connecting lines (21) are guided by a positioning member (20) which can be fixed to the rim...

The substituted N-trichloromethylthiodicarboximides are used in combination with N,N'-substituted bis(2,4-diamino-s-triazin-6- yl)oligosulphides to improve the vulcanisation characteristics of vulcanisable rubber mixtures.

A non-aqueous hydroformylation process for producing aldehydes which comprises reacting an olefinically unsaturated organic compound with carbon monoxide and hydrogen, in a non-aqueous hydroformylation reaction medium containing the olefinically unsaturated organic compound, aldehyde product, solubilized Group VIII transition metal-phosphorus ligand complex catalyst and solubilized free phosphorus...

Non-hygroscopic, azithromycin (9-deoxo-9a-aza-9a-methyl-9a-homoerythromycin) dihydrate and a process therefor.

A process for preparing an alpha-aromatic group substituted alkanoic acid or its ester of the general formula wherein Ar represents an aromatic group and R<1> represents a hydrogen atom or a saturated aliphatic group, or Ar and R<1> may form a condensed ring together with the carbon atom to which they are bonded; and R<2> represents a hydrogen atom, an alkyl group, or a hydroxyalkyl group, ...

A filter cigatette comprises a tobacco rod having a tobacco mixture with a low packing or filling density, a first filter element racing the tobacco rod, having a retention capacity of 40 to 80% and consisting of a fibrous material having a low single denier and a high total denier, a second filter element facing the mouth of the smoker and having a retention capacity of 15% at the maximum, and a ...

Thermoplastic foam is prepared by a continuous process comprising melt mixing thermoplastic resin; pressurizing the resin melt; introducing blowing agent; cooling and depressurizing the resultant gel; and either foaming and forming the gel to form a solid foam or forming the gel to form a foamable composition. The process temperature is maintained substantially independently of the flow rate of th...