Shell Canada Limited

Shell Canada Limited has been investigating the use of sulfur as a means of producing mixes with low quality aggregates since 1963. This work produced a series of patents [5-13] and experimental field trials [ 14., 15]. The results of these trials and an extensive research and development program [16-18] led to the development of a number of specialty items two of which are ... 

Registered Trade Marks of Shell Canada Limited... 

Shell Canada Limited (26,27,23,22) Shell Canada Limited has been investigating mixes produced with low grade aggregate. 

Other Work. In addition to the work conducted by Shell Canada Limited, a number of studies with similar materials have been conducted by the Texas Transportation Institute (29), the U.S. Bureau of Mines (30) and the National Research Council of Canada, Dept, of Building Research (31.). 

Oakville Research Centre, Shell Canada Limited, Oakville, Ontario, Canada... 

Pittsburgh Energy Technology Center, 261 Ralph Gray Services, 261 Shell Canada Limited, 633 Southern Illinois University, 296 State University of New York, 68 University of Alberta, 83,93,366 University of Calgary, 592,633 University of California—Los Angeles, 575 University of Chicago, 241... 

Shell Oil Co Shell Canada Limited Shell Chemicals Limited Shell WindEnergy BV CRI Catalyst Companay CRI Asia Pacific Pte Ltd PetroChina Company Arrow Energy Limited... 

Shell Canada Limited ROYAL DUTCH SHELL... 

Tn 1963 Shell Canada Limited initiated a laboratory program which eventually led to the development of a sand-asphalt-sulfur (S-A-S) paving material called Thermopave. This study revealed that cast S-A-S mixes with excellent engineering properties could be prepared by using locally available aggregates normally considered unacceptable for pavement construction. This concept was also investigated, to a lesser extent, by Shell Oil Co. and Shell Development Co. 

Many contributed to the success of the symposium. The executive and members of the Macromolecular Science Division thank the following firms for fiscal support Polysar Limited Abitibi Paper Company Reichhold Limited Xerox Research Centre of Canada Limited Varian Associates of Canada Glidden Company Domtar Limited DuPont of Canada Shell Canada Gulf Oil Canada and the Dunlop Research Centre. A special vote of thanks is extended to the speakers at the symposium and to the authors for their excellent presentations and for their cooperation in putting it together. J. Comstock of the American Chemical Society showed understanding and patience in bringing this volume to print. 

The results tend to verify the conclusions established earlier by Shell, that as long as mix temperatures are maintained below 300°F, concentrations of H S and SO are well within the safety limits suggested by the American Conference of Governmental Industrial Hygienists [ 29]. All of the field trials conducted both in the United States and Canada utilized conventional batch type hot mix plants and paving equipment. These field sections have been under post-construct ion evaluation for more than four years and are still performing satisfactorily. 

MODA Technology Partners LONZA GROUP Mohawk Carpet LLC MOHAWK INDUSTRIES INC MonOxbar CONSTAR INTERNATIONAL INC Moorgard BENJAMIN MOORE CO Mosaic Canada ULC CANPOTEX LIMITED Mosaic Crop Nutrition, LLC POTASH CORPORATION OF SASKATCHEWAN INC Mosaic Potash Esterhazy, LP POTASH CORPORATION OF SASKATCHEWAN INC Motiva Enterprises LLC SHELL OIL CO M-tec COMPAGNIE DE SAINT-GOBAIN SA... 

Some countries have established exceptions to proposed limits depending on the form of consumption of the shellfish and based on the effectiveness of some procedures (mainly evisceration and canning) in reducing PSP toxicity [8,13-15]. Thus, in Argentina, snails to be canned may contain up to 1.6 mg STX equivalents/kg [16]. In the same way, in Canada, products (soft shell cahns and mussels) with levels between 0.8 mg STX equivalents/kg and 1.6 mg STX equivalents/kg may be canned... 

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