Abstract: The addition of poly(ethylene terephthalate) to core-shell resin impact modified, glass fiber and mica reinforced poly(1,4-butylene terephthalate) compositions provides articles molded therefrom with improved surface gloss, impact strength, flexural modulus, flexural strength and tensile strength. Heat distortion temperatures are elevated if not less than 2.6 nor more than 4 parts by weight of poly(1,4-butylene terephthalate) resin is present for each 1 part by weight of acrylic resin impact modifier.

Abstract: High impact, high modulus thermoplastic molding compositions comprise(a) an aromatic carbonate polymer;(b) a polystyrene resin;(c) a fibrous reinforcing agent essentially free of any sizing agent; and(d) a small amount of a polysiloxane having a substantial content of Si--H bonds.

Abstract: At least one confined chamber is formed by one and the other mounting fixtures and by a wall of rubber elastomer hermetically connecting the two fixtures, and a pump chamber made operative to effect a pumping action in response to the vibrations of the one mounting fixture is formed separately of the aforementioned confined chamber so that the atmosphere is pumped into the confined chamber from that pump chamber.In the damper support thus constructed, since the air is pumped into the inside when in the vibrations of low frequency, the damping factor can be made large. Even in the vibrations of high frequency, the dynamic spring constant can be made small.

Abstract: An improved polyphenylene ether composition and process for production are disclosed. Benzoic anhydride is reacted with polyphenylene ether polymer, preferably under conditions of extrusion, to produce a composition having improved color and/or color stability.

Abstract: A matrix programming board is disclosed for selectively connecting pairs of conductive bars. The programming board includes two sets of parallel conductive bars disposed in orthogonal relationship. Each conductive bar includes cylindrical sockets held in position within an insulator block formed with a hole for each socket. Connecting pins, applied through a perforated cover plate, join a conductive bar in one set with a similar bar in the other set. L-shaped termination pins are provided to facilitate mounting of the programming board to a printed circuit board. The board includes a locking recess for engagement with a longitudinal rail to enable adjacent programming boards to be mounted in aligned abutting relationship. In a preferred embodiment, the connecting pins are provided with a detent for maintaining a secure electrical interengagement with the sockets of the conductive bars.

Abstract: A comparator is provided including a body in which there is fastened a plate comprising a lever for transmission of movements of a pivoting feeler, and an amplification device, with gearing, actuated by said lever and driving a needle of a reading dial. The stroke of the transmission lever is limited by a rigid end-of-stroke stop. On the path of the transmission lever, a coil spring is arranged between its position of rest and its end-of-stroke position to protect the mechanism from accidental impact. In case of impact on the feeler, the energy developed by the amplification device is partly absorbed before the impact of transmission lever on the rigid end-of-stroke stop.

Abstract: Phenyl-containing organopolysiloxane fluids characterized by the formula, ##STR1## wherein Ph is phenyl, R is hydrogen, trimethylsilyl or mixtures thereof and wherein x and y have a value sufficient to provide a phenyl content of from about 7 weight percent to about 80 weight percent are provided. Also provided are polycarbonate compositions comprising these novel phenyl containing organopolysiloxane fluids.

Abstract: Flame retardant compositions comprising a polyphenylene ether resin, a styrene resin and a cyclic phosphonate have excellent appearance and physical properties after molding. Especially useful is diphenyl pentaerythritol diphosphonate.

Abstract: There are provided ultraviolet light absorbing agents of the formula ##STR1## wherein: X is >C.dbd.O, or ##STR2## Y is H or OH; Z is H, OH, OQ or OW, where at least one Z is OH if Y is H;Q is --CONH(CH.sub.2).sub.3 Si(R.sub.2).sub.x (OR.sub.1).sub.y or --CONH(CH.sub.2).sub.3 Si(R.sub.2).sub.x (OCOR.sub.1).sub.y ; andW is --C.sub.m H.sub.2m+1 ;where x=0, 1 or 2, y=1, 2 or 3, x+y=3, R.sub.1 and R.sub.2, independently are each alkyl having 1 to 6 carbon atoms and m=1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.

Abstract: It has been found that highly active uricase can be produced by fermentation from the microorganism Micrococcus roseus NRRL B 12196. The optimum activity of this microorganism is close to the pH values of the physiological liquors. The uricase so produced can be exploited in the clinical diagnostics for determining uric acid.

Abstract: A hingeless compact is disclosed for holding cosmetic articles. The compact includes a plate member and cover member having complimentary configurations such that in the closed condition of the compact a smooth surfaced enclosure is defined. The cover and plate members are provided with cooperating structures including opposed interlocking detents for maintaining the compact in a closed condition. Preferably, an additional stop rib is provided to prevent the inadvertent removal of the cover member from the plate member.

Abstract: Homogeneous blends of polyphenylene ether resin and copolymers of styrene and 4-tert-butylstyrene are described. Rubber modifiers can be included in the copolymer or the blend. The blends are moldable into highly ductile articles having higher heat distortion temperature.

Abstract: Thermoplastic molding compositions of a polyphenylene ether resin and optionally an impact modifier are improved by addition of a minor amount of tribenzylphosphine oxide which depresses the viscosity and enhances the melt flow of the resin.

Abstract: An improved method for the preparation of polyphenylene oxides is disclosed. The method comprises using a diamine catalyst system comprising a cupric compound, coupling the phenolic monomer in the absence of methanol, and adding a promoter to the reaction mixture.

Abstract: Purified bis(3,5-dialkyl-4-hydroxyphenyl) sulfone useful for production of improved carbonate polymer is described. This sulfone is precipitated by deammoniation of an aqueous solution and then removed from the supernatant solution. This produces a product having minimal phenol sulfonic impurities. It may be employed to form carbonate polymer having improved physical properties.

Abstract: Polyphenylene ether resins having improved properties are described. These resins contain minor effective amounts of an antistatic agent comprising N,N-bis-(2-hydroxyethyl)-N-octyl-N-methyl ammonium para toluene sulfonate salt, preferably with polyethylene glycol ester also present. In addition to serving as an enhancer for the antistatic agent, the polyethylene glycol ester also improves such properties as odor and impact strength.

Abstract: A process for the production of a substantially clear and colorless, or at most slightly tinted, polyarylcarbonates useful to form molded structural and engineering articles suitable to replace metal parts, or for use in electrical appliances to form lenses, safety shields, instrument windows and the like is disclosed.The tendency of color formation in polycarbonates and polyarylates prepared by transesterification and polycondensation is reduced or inhibited by carrying out the transesterification reaction while the reaction mixture contacts only metal surfaces of selective metals, or glass. The metal surfaces are provided by such metals as tantalum, nickel, or chromium or mixtures thereof. The reaction is carried out in reactors or systems which are substantially totally made of such metals, or reactors or systems clad or lined with a layer of such metals or glass.