A total mass flowmeter which employs a conventional flowmeter turbine to produce output pulses at a rate directly proportional to the volume flow rate. A number of different, constant frequency clock pulses are then transmitted to a frequency divider periodically, the said number being directly proportional to density. The divider output pulses are then stored and inserted half way between the leading edges of the turbine meter output pulses. A unique circuit deletes every tenth meter output pul...

Polyphosphinic acids and salts thereof of the general formulas wherein Z is hydrogen, a metal, ammonium or substituted ammonium and n is an integer of at least 2. The polyphosphinic acids are useful as complex-forming agents and sequestering agents. The polyphosphinic acid salts are useful as stabilizers for peroxide solutions and active chlorine compounds.

.beta.-(2-Naphthyl) acetaldehydes optionally substituted at the .beta. position and/or positions C--1, 4, 5, 7 or 8; and/or position C--6 possess anti-inflammatory analgesic, antipyretic and anti-pruritic activity.

A temperature control device for use in a frozen-foods compartment of a refrigerator, or the like comprises a pair of temperature-sensitive elements one of which is adapted to be inserted into the material to be frozen. The two elements are connected in a logic circuit which in turn controls a switching device to thereby control the operation of the refrigeration unit to establish and then maintain a desired temperature in the compartment.

The chemical aminomalononitrile and methods for making it comprising reacting oximinomalononitrile or phenazomalononitrile with approximately stoichiometric amounts of one of the group consisting of unoxidized aluminum, zinc and sodium dithionite. Formation of aminomalononitrile using zinc must take place in an acid solution. In each case, the reaction mixture is externally cooled until the initial exothermic reaction is substantially complete. Preferably, the aminomalononitrile so formed is iso...

Synergistic mixture of a boron compound devoid of nitrogen and at least one of a hydroxyphenone, an N-hydroxyphenylbenzotriazole and a salicylic acid ester. The mixture is used as an additive to stabilize plastic, resins and fibers against deterioration due to weathering, oxidation, heat, etc.

Coated textiles are produced by a process in which 4-rail knitted fabric which is napped on one face is coated on the napped face with a polyurethane and subsequently grained mechanically.

Reaction products of humic acid with long-chain fatty acyl partial amides of a polyalkylene polyamine, such as the reaction product obtained using tall oil fatty acids and tetraethylene pentamine, the salt linkage being optionally, partially or largely converted to amide linkage by heat treatment. The humic acid optionally may be in part reacted with a long-chain alkyl ammonium cation. The novel products are useful in compounding oil base well-working fluids; as corrosion inhibitors; and for oth...

Novel compounds of the formula: are provided wherein Q represents the non-metallic atoms required to complete an acidic nucleus of the type used in merocyanine dyes. Methods for preparing these compounds, and the preparation of merocyanine and oxonol dyes employing these compounds, are also described.

Silica pigments are precipitated by the acidulation of aqueous sodium silicate solution with carbon dioxide, and for controlling the characteristics of the silica pigment obtained, as evidence by the physical properties imparted to rubber vulcanizates thereby when used as a rubber reinforcing filler, the silicate solution is maintained at different average temperatures during different stages of such acidulation, which end respectively, with the appearance of a Tyndall effect, the subsequent pre...