Transparent resin film having a low haze value (less than 10% as determined by ASTM D 1003) is produced by a process of inflation molding in an upward direction a resin composition comprising 100 parts by weight of a polybutylene terephthalate resin having an intrinsic viscosity IVa of at least 1.0, and between 15 and 45 parts by weight of a polycarbonate resin having an intrinsic viscosity IVb of...

Liquid bitumen at a temperature of 120 - 160C is mixed with 1-3% by weight of water in a mixing device (8) at a pressure which is higher than the saturation pressure of water vapor at the temperature of the hot bitumen. From the mixing device the mixture is allowed to expand through a valve (10) such as a throttle valve, the resulting evaporation of the water in the mixture causing the desired ...

A flexible material in the form of sheets or of a web for the manufacture of a dimensionally rigid, liquid-tight packing container. The material comprises a carrier layer (5) consisting of mineral-filled thermoplastic material, preferably polypropylene, whose one side, preferably that facing towards the inside of the intended container, with the object of increasing the rigidity is provided with a...

A catalyst used for producing, by catalytic gas phase oxidation of a C3-C5 olefin or tertiary alcohol, the corresponding unsaturated aldehyde and unsaturated carboxylic acid, said catalyst characterized by comprising molybdenum, iron and bismuth and having a specific surface area in the range from 1 to 20m<2>/gr, a pore volume in the range from 0.1 to 1.0 cc/gr and a pore diameter distribution in ...

This invention relates to a method for detecting whether contaminants are on or have migrated into the body of a plastic reusable food or beverage container. The invention uses a sensor (12) attached to the inside of the container (11) which changes optical density when it is exposed to certain contaminants. The change in optical density is detected by illuminating (13) the sensor with ultraviolet...

The present invention relates to the use of a gating means in combination with a spontaneous infiltration process to produce a metal matrix composite body. Particularly, a permeable mass of filler material or a preform (2) is spontaneously infiltrated by molten matrix metal (5) to form a metal matrix composite body. A gating means (3) is provided which controls or limits the areal contact between ...