Abstract: Methods and apparatus for an automated keyword refinement tool for generating an output set of keywords. The keyword refinement tool may utilize or incorporate results from keyword suggestion tools and keyword ranking tools in order to determine a set of keywords that produce better search engine results that if the keyword suggestion tools or keyword ranking tools were utilized individually. The keyword refinement tool may use a variety of methods for determining input to keyword suggestions tools and keyword ranking tools and a variety of methods for combining the results from the keyword suggestion tools and keyword ranking tools.

Abstract: Methods and apparatus for an automated keyword refinement tool for generating an output set of keywords. The keyword refinement tool may utilize or incorporate results from keyword suggestion tools and keyword ranking tools in order to determine a set of keywords that produce better search engine results that if the keyword suggestion tools or keyword ranking tools were utilized individually. The keyword refinement tool may use a variety of methods for determining input to keyword suggestions tools and keyword ranking tools and a variety of methods for combining the results from the keyword suggestion tools and keyword ranking tools.

Abstract: A composition which forms a corrosion-inhibiting film when applied to a metal surface. The composition comprises a low molecular weight polyfunctional polymer formed by polymerizing a vinyl monomer in the presence of a mercaptan chain transfer agent. In one embodiment, the composition comprises a low molecular weight polyfunctional polymer represented by the general formula: ##STR1## wherein M is a repeating vinyl monomer unit, n is from about 2 to about 40, x is from 0 to about 10, y is from 0 to 1, z is from 0 to 1 if y is 0 and 0 if y is 1 and R is hydrogen, an alkyl group, a hydroxy alkyl group or an alkoxy group. A method of treating a metal surface by contacting the metal surface with a composition that forms a corrosion-inhibiting film thereon is also provided. The composition and methods are useful for inhibiting corrosion of downhole metal surfaces present in oil and gas wells.

Abstract: A composition which forms a corrosion-inhibiting film when applied to a metal surface. The composition comprises a low molecular weight polyfunctional polymer formed by polymerizing a vinyl monomer in the presence of a mercaptan chain transfer agent. In one embodiment, the composition comprises a low molecular weight polyfunctional polymer represented by the general formula: ##STR1## wherein M is a repeating vinyl monomer unit, n is from about 2 to about 40, x is from 0 to about 10, y is from 0 to 1, z is from 0 to 1 if y is 0 and 0 if y is 1 and R is hydrogen, an alkyl group, a hydroxy alkyl group or an alkoxy group. A method of treating a metal surface by contacting the metal surface with a composition that forms a corrosion-inhibiting film thereon is also provided. The composition and methods are useful for inhibiting corrosion of downhole metal surfaces present in oil and gas wells.

Abstract: A composition which forms a corrosion-inhibiting film when applied to a metal surface. The composition comprises a low molecular weight polyfunctional polymer formed by polymerizing a vinyl monomer in the presence of a mercaptan chain transfer agent. In one embodiment, the composition comprises a low molecular weight polyfunctional polymer represented by the general formula: ##STR1## wherein M is a repeating vinyl monomer unit, n is from about 2 to about 40, x is from 0 to about 10, y is from 0 to 1, z is from 0 to 1 if y is 0 and 0 if y is 1 and R is hydrogen, an alkyl group, a hydroxy alkyl group or an alkoxy group. A method of treating a metal surface by contacting the metal surface with a composition that forms a corrosion-inhibiting film thereon is also provided. The composition and methods are useful for inhibiting corrosion of downhole metal surfaces present in oil and gas wells.

Abstract: Dimercaptodihydroxy alkanes are used as a curing agent for epoxide resins and as ore flotation agents.

Abstract: Dimercaptodihydroxy alkanes, such as 1,10-dimercapto-2,9-dihydroxydecane, are used as a curing agent for epoxide resins and as ore flotation agents.

Abstract: A refrigeration process is conducted by employing as the refrigerant a mixture of one or more hydrocarbons and one or more halocarbons. The boiling points of the components of the mixture are bracketed in such a manner that the flammability of the mixture is reduced.

Abstract: Dimercaptodihydroxy alkanes are used as a curing agent for epoxide resins and as ore flotation agents.

Abstract: Novel compounds having the formula ##EQU1## WHEREIN N IS AN INTEGER, 0 TO 3 AND Z is selected from bromine or ##EQU2## the proportion of the selected Br-- and RCO.sub.2 --being such that the weight percent Br in the compound will be in range 20 to 70, the R in the carboxylate group containing from 1 to 17 carbons and being selected from alkyl, cycloalkyl, aryl, and combinations thereof such as alkaryl and aralkyl, the R groups being the same or different.The now preferred compound 1,7-diacetoxy-2,2,6,6-tetra(bromomethyl)-4-oxaheptane (DATBOH) is prepared by reaction of dipentaerythritol, acetic anhydride and anhydrous hydrogen bromide at about 100.degree. C., extracting with a solvent, treating with an alkaline wash, and recovering the product as a viscous liquid. Alternately, the corresponding hexaacetate can be brominated using hydrogen bromide.The product compounds are useful as flame retardants, for example, for polymers, e.g. polyolefins, more particularly polypropylene.

Abstract: A thermoplastic such as polypropylene is blended with flame retardant additives and subjected to elevated temperature such that it is degassed sufficiently to avoid formation of voids or cells in an object molded therewith.