Abstract:
The present invention relates to a plastic vehicle- interior-part (2) with an impact module (1), the impact module being made from an expanded foam material.
Abstract:
This invention provides an air control system which is retrofittable in an intermediate position between upstream compressors (130) and air storage vessels and downstream useful production equipment (140) to provide benefits of greater air-utilization efficiency and a better air system balance between supply and demand, especially on an air-weight flow basis. A preferred embodiment employs a plurality of servo-driven flow controllers (30) in parallel between a pair of header tanks (22) and controls them in response to sensed downstream pressures and to the pressure differential across the control system. Another embodiment includes control means to manage the loading and unloading of compressors to and from the air system.
Abstract:
A method for the purification of pharmaceutical grade 1, 1, 1,2-tetrafluoroethane (HFC-134a) and polymer grade chlorodifluoromethane (HCFC-22) by contacting a mixture comprising 1, 1, 1,2-tetrafluoroethane or chlorodifluoromethane and methyl chloride with a zeolite such as a molecular sieve, and recovering from said contacted mixture substantially purified 1, 1, 1,2-tetrafluoroethane or chlorodifluoromethane.
Abstract:
Cement compositions and processes for reducing air entrainment in a cement composition generally include mixing a hydraulic cement with a defoamer compositions including one or more organic acid ester polymers selected from an organic acid ester of polyethylene oxide polymer, an organic acid ester of polypropylene oxide polymer, and a mixture thereof. The compositions may further comprise an organic acid ester of an ethylene oxide-propylene oxide block copolymer.
Abstract:
Cement compositions and processes for reducing air entrainment in a cement composition generally include mixing a hydraulic cement with a defoamer composition including an organic acid ester of a polyoxyethylene-polyoxypropylene block copolymer.
Abstract:
A method for the purification of pharmaceutical grade 1, 1, 1,2-tetrafluoroethane (HFC-134a) and polymer grade chlorodifluoromethane (HCFC-22) by contacting a mixture comprising 1, 1, 1,2-tetrafluoroethane or chlorodifluoromethane and methyl chloride with a zeolite such as a molecular sieve, and recovering from said contacted mixture substantially purified 1, 1, 1,2-tetrafluoroethane or chlorodifluoromethane.