Abstract: Described herein is an industrial fan or blower including a flame-retardant polyamide composition.

Abstract: A composition comprises a polyalkylene terephthalate and/or polyester thereof, a free triglyceride, a dendrimer, and optionally, an epoxy component. The composition is used to prepare a thermoplastic polymer. The composition and the thermoplastic polymer may be used to form an article having an improved hydrolysis resistance and an improved melt viscosity. The article may be useful for automotive, electrical, household, and industrial applications. A method of preparing the thermoplastic polymer is also disclosed.

Abstract: A composition for forming an article having an improved resistance to hydrolysis is disclosed. The composition comprises a polyalkylene terephthalate and/or polyester thereof, a triglyceride, an epoxy component, and a plasticizer. The polyalkylene terephthalate has terminal carboxyl groups and hydroxyl groups and internal ester linkages. The triglyceride has at least one acid component with 6 to 30 carbon atoms and at least one epoxy group for reacting with the carboxyl groups. The epoxy component has internal aromatic groups and at least one terminal epoxy group for reacting with the carboxyl groups. The plasticizer comprises an esterification product of a polyoxyalkylene glycol with 1 to 20 carbon atoms and an aliphatic carboxylic acid with 1 to 25 carbon atoms for improving melt flow properties and for reducing hydrolysis of the composition.

Abstract: A field configurable contactor is disclosed. The contactor preferably includes a plurality of spaces adapted to receive any number, up to its limit, of contact modules. Each contact module preferably includes a pair of contacts and a spring biased cam follower which opens and closes the contact pair when a cam profile of the contactor moves according to energization or de-energization of the contactor. The contact module can be either “normally open” or “normally closed” depending on its initial placement onto the contactor relative to the cam profile. A latch assembly in the contactor may hold the contactor mechanically during de-energization.

Abstract: An electromagnetic contactor that provides accurate contactor status indication regardless of the contact position. The primary contacts are secured within reversible contact modules. A contact carrier first end provides accurate local contact position indication. Auxiliary contacts toggled by the operator provide accurate control system status indication. The operator includes a stem with two sets of abutments that cooperatively engage the contact carrier. A catch located at the contact carrier second end and an abutment lip attach if the moveable contacts are welded shut. The operator status is prevented from changing thus insuring the accuracy of the contact position feedback. The contact modules can be installed in the electromagnetic contactor without the use of tools.

Abstract: A terminal apparatus for connecting an electrical conductor to electric equipment. A terminal is electrically coupled to the electric equipment and has a hole formed therethrough. A first securing member has a head and a shaft passing through the hole formed in the terminal. A first conductor receiving area is defined between the head and a first side of the terminal. A second securing member selectively engages the shaft on a side of the terminal opposite the head of the first securing member. A second conductor receiving area is defined between the second securing member and a second side of the terminal. A holder is coupled to the terminal and disposed on a side of the terminal corresponding to the second securing member. The holder retains the second securing member at a position in which the second securing member can be engaged with an end of the shaft when the shaft is inserted through the hole formed in the terminal.

Abstract: An electric switch having fixed contacts and rotary movable contacts in pairs. The movable contact have a central portion coupled to a rotary member and end portions adapted to contact the fixed contacts. The end portions extend from the central portion at an angle. The movable contact pairs lie in substantially the same plane.

Abstract: Polymer compositions containing a polyphenylene etherpolyolefin copolymer are obtained by reactive melt mixing olefin-(alkyl)acrylic acid copolymer with a polyphenylene ether and a carboxylic anhydride. The compositions are used in many commercial applications requiring high temperature resistance including formation of films, fibers and molded articles with excellent surface appearance.

Abstract: A molding composition comprising a thermoplastic polyester in an alkali metal salt of polyphenylene ether as a nucleating agent.

Abstract: A moldable polyblend of thermoplastic polyesters, one or more polymers selected from polyamides, polyolefins and mixtures thereof, and ethylene copolymers containing epoxy groups. The ethylene copolymers contribute improved compatibility between the thermoplastic polyesters and the polyamides or polyolefins, permitting the blending of these polymers without detracting from the mechanical or thermal properties of the individual polymers.

Abstract: Polymer compositions containing a polyphenylene etherpolyolefin copolymer obtained by melt mixing an ethylene/(alkyl)acrylic acid copolymer with a polyphenylene ether or an ester end-capped polyphenylene ether. The compositions are used in many commercial applications requiring high temperature resistance including formation of films, fibers and molded articles with excellent surface appearance.

Abstract: A process for increasing the crystallization rate and crystallization temperature of thermoplastic polyesters by incorporating into the polyesters quaternary ammonium salts in amounts effective to increase the crystallization temperatures of the polyesters at least 15.degree. C., which quaternary ammonium salts are substantially free of metal salts of organic acid functional groups. Molding compositions of thermoplastic polyesters and quaternary ammonium salts present in amounts effective to increase the crystallization temperatures of the polyesters at least 15.degree. C.

Abstract: A moldable polyblend of an aromatic polycarbonate, a polyester of an aromatic dicarboxylic acid, an elastomeric rubber, and a polylactone, which polylactone is present within the range of from about 1.0 to about 10 weight % of the polyblend.

Abstract: An oxymethylene polymer composition which exhibits a reduced tendency to form mold deposits upon molding, reduced tendency to discolor under thermal stress and low extractable formaldehyde levels is provided by utilizing as a stabilizer a major amount of superpolyamide and a minor amount of a cyclic amidine compound of the formula: ##STR1## wherein R is phenyl, polynuclear aromatic, heterocyclic, cycloaliphatic and aliphatic containing at least 6 carbon atoms, as well as substituted derivatives of the listed substituents.

Abstract: The printability of oxymethylene polymers such as by the heat transfer of sublimable dyes is improved by the addition of an amorphous or partially crystalline polymer to the oxymethylene polymer molding composition.

Abstract: Apparatus for the manufacture of a rim for the wheel of a commercial load carrying or passenger service vehicle, which apparatus comprises in combination bending apparatus for bending steel strip and butt welding the edges thereof to form a cylindrical component and a plurality of press tools for converting the component into a rim wherein at least one of the press tools comprises an annular die having located within the opening thereof pressure plate adapted to ascend or descend within such opening and on which a cylindrical component to be formed into the rim is adapted to be located above the bottom of the annular die, and pressure elements mounted above the die and adapted to engage therewith through its opening in such a way as to subject the component to compressive load against the inner surface of the die whereby the contour of the die or of the die and the pressure elements is imparted to the component, wherein the pressure elements comprises a combination of upper and lower punch tools resiliently i