Agents which contain (a) an ester of aliphatic carboxylic acids and aliphatic alcohols having a boiling point of at least 150.degree. C. and --based on (a -b) 0.5-10% by weight of an amide of the formula ##STR1## in which R stands for C.sub.10 -C.sub.22 -alkyl or -alkenyl, R' stands for H or C.sub.1 -C.sub.4 -alkyl, or the two R' together stand for an ethylene bridge, and R" stands for the radicals ##STR2## or --CH.sub.2 --O--CH.sub.2 --, wherein R"' stands for H, C.sub.1 -C.sub.6 -alkyl or phen...

Thermoplastic polyimide foams are provided which essentially consist of recurring units represented by the formula (I): ##STR1## wherein X is a bond, divalent hydrocarbon radical having from 1 to 10 carbon atoms etc. and R is an aliphatic radical having 2 or more carbon atoms, cycloaliphatic radical etc. The foams have an apparent density of from 0.02 to 0.2 g/cc, average cell diameter of 0.1 to 1 mm and a closed cell content of 50% or more.

Thermoplastic polyimide foams are provided which essentially consist of recurring units represented by the formula (I): ##STR1## wherein X is a bond, divalent hydrocarbon radical having from 1 to 10 carbon atoms etc. and R is an aliphatic radical having 2 or more carbon atoms, cycloaliphatic radical etc. The foams have an apparent density of from 0.02 to 0.2 g/cc, average cell diameter of 0.1 to 1 mm and a closed cell content of 50% or more.

Dispenser apparatus for multicomponent products comprises a pair of containers each having its own dispensing valve. A bracket is arranged to hold the containers in fixed position and includes a manual trigger. Links are provided for connecting the trigger with the valves for actuation of the valves in unison; and the dispenser apparatus additionally includes a remote dispensing nozzle unit and tubing connecting each of the dispensing valves with the latter unit.

A foam receptacle, such as a disposable cup, having walls comprised of laminated plies of plastic foam sheet.

A tubular housing with a rear inlet and a front-end outlet has a foraminous cover over its front end. A shaft extends lengthwise of the inside of the housing and is rotatably supported. It is driven by a water turbine on its front end, the turbine having an inlet for water under pressure and a central front outlet that delivers the water to a forwardly directed nozzle connected to the turbine. Rigidly mounted on the shaft behind the turbine is a fan for blowing air through the housing from back ...

Foam resin bedding for use a box spring and mattress, both having areas of differential resistance to weight, the middle area having greater resistance than the end areas. This is accomplished in the box spring by forming on one side integral tapered protuberances extending normally from the face thereof, the protuberances in the midportion being smaller and closer spaced than those at the ends. In the mattress element the differential resistance is obtained by varying the size and or number of ...

A vertical hollow cylinder has an open bottom end and a closed top end having a first opening. A vertical hollow tube is open at both ends. A vertical inverted truncated hollow cone is open at both ends. The smaller open end of the cone is connected to the upper open end of the tube. A vertical cup shaped element has a first flat horizontal surface having a central hole coincident with the larger cone end and containing a plurality of small holes spaced from each other and from the central hole....

Perfluorotripentylamine, perfluoropolyether or another such high-boiling liquid is added as a foaming agent to a thermoplastic fluororesin such as a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin or a tetrafluoroethylene-hexafluoropropylene copolymer resin. Because the vapor pressure of said foaming agent in the molten fluororesin is lower than that of Freon or another such low-boiling foaming agent, the cells in the foam can be made fine and uniform in diameter.

The present invention is based upon the discovery that composite open-cell foam structures, such as carpet underlay cushions, having improved compression resistance and better wear characteristics can be manufactured by utilizing a carboxylated styrene-butadiene rubber latex which is comprised of a styrene-butadiene rubber latex and a carboxylated styrene-butadiene rubber latex. The subject invention more specifically discloses a carpet underlay cushion structure comprising: a carrier layer of o...