摘要:
A fluid blend suitable for use as a lube basestock comprises two major components: (A) a copolymer made from ethylene with one or more alpha olefins, the copolymer (i) containing not more than 50 wt % ethylene; (ii) having a number average molecular weight of from 400 to 10,000; and (iii) a molecular weight distribution
摘要:
The present invention is directed to a method for improving the performance of lubricating oils of high viscosity comprising GTL base stock(s) and/or base oil(s) and lubricating oil comprising such base stock(s) and/or base oil(s) in combination with an effective amount of a polyolefin fluid having a kinematic viscosity at 100° C. in the range between about 10 to about 200 mm2/s.
摘要:
Formulated lubricating oils meeting 0W and 5W low temperature CCS and MRV performance specification and exhibiting a Noack volatility of about 15 wt % or less are prepared from a mixture of base stocks/base oils of similar kinematic viscosity grade range produced by different final wax processing routes and omitting or reducing the amount of viscosity modifiers and pour point depressants.
摘要:
Rapid determination of low temperature residual wax contamination in basestock oil provides a basis for real time correlation of basestock quality with the low temperature viscometric properties of fully formulated oils made using said basestock oil.
摘要:
A wall cladding and wall cladding system each comprising a plurality of panels, wherein opposing ends of each panel are substantially aligned with corresponding opposing ends of adjacent panels to form respective edges of an array of panels. Each panel includes at least one first recess in its first major face adjacent a first major edge configured in use to resemble a recessed mortar joint.
摘要:
A fibre reinforced cement flooring sheet (1) that is suitable for use in wet area flooring, is lower in density than conventional compressed fibre cement wet area flooring, and is nailable. The flooring sheet (1) includes connecting means (2) on longitudinal edges permitting the sheet to be interlockingly engaged with adjacent sheets to form a substantially coplanar support surface, suitable for use in wet areas.
摘要:
A cavity wall system and a method of forming a cavity wall including: a wall structure (1); a plurality of outer wall cladding panels (2); and a plurality of discrete mounting elements (4, 5, 6) for mounting the cladding panels a predetermined distance away from the wall structure (1) so as to form a substantially flat exterior wall surface (7) and a substantially uninterrupted internal wall cavity (8) between the cladding panels (2) and the wall structure (1); the mounting elements (4, 5, 6) being sized and arranged so as to allow substantially uninterrupted fluid flow throughout the cavity (8); and the system further including moisture control means defining a moisture control plane to minimise migration of liquid moisture from the cavity (8) into the wall structure (1). The invention also provides a mounting member (4) and a termination member (5) for use as mounting elements in the cavity wall system and method.
摘要:
The invention includes linkage assemblies comprising coupled links with metallic contact surfaces with improved stiffness. The inventors found significant mechanical problems with all previous descriptions of metallic contact links sufficient to preclude their commercial use. These metallic contact links are a significant improvement over existing plastic ball and metal joint, or all plastic beads as found in the prior art. The invention includes methods providing these links and high friction couplings between them, as well as the linkage assemblies and flexible arms resulting from these processes.
摘要:
A framed wall construction (10) includes a generally vertically orientated frame (12). A substantially planar layer of a moisture barrier (21) having a generally water-resistant front surface is fixedly attached to substantially cover the frame (12). To complete the wall construction, an outer cladding material (22) is secured to cover the moisture barrier (21).