Abstract: A composition of matter comprising (1) an N-methylol monomer of the following general formula: ##STR1## wherein R is hydrogen, lower alkyl (C.sub.1 -C.sub.4), isopropenyl, or phenyl and R.sub.1 is hydrogen or methyl, and (2) a polyalkoxylate substance having at least a portion of its structure represented by (alkylene oxide).sub.x, wherein x is an integer, the composition containing about x molecules of the N-methylol monomer per molecule of polyalkoxylated substance. Such N-methylol monomer/polyalkoxylated complexes are polymerized to yield ungelled cross-linkable N-methylol polymers. The N-methylol polymers are cross-linked in a controlled manner with polyvinyl alcohol.

Abstract: A process is provided for making a distinction between solid, porous materials, e.g. thermoplastics, having surfaces which are either untreated or treated to render them measurably impermeable to volatiles. The surfaces are first exposed to a high concentration of a volatile fluid which is removed after a fixed time period. The surfaces are then exposed to an environment, e.g. a vacuum, to cause the volatile fluid to back-diffuse and the fluid that back-diffuses is measured. The rate at which the fluid back-diffuses from the untreated surface is considerably greater than that of the treated surface.

Abstract: The present invention is directed to an air separation system for the recovery of pressurized, substantially pure oxygen gas. The system uses a single pressure distillation column and burns a nitrogen-oxygen waste stream to provide power for the air compressor, the oxygen product compressor and electric generation. The distillation column has a split feed to develop reflux and reboil and to provide initial separation of the liquid and vapor components of the column.

Abstract: Process for converting a relatively high boiling point crude oil fraction, such as a 500.degree.+F. initial boiling point topped crude to synthetic natural gas. In the process, a lower boiling point fraction of the feedstock is hydrogasified while a residual oil fraction of the feedstock is partially oxidized to produce hydrogen for use in the process. A mid-cut fraction between the gasification fraction and the partial oxidation fraction is converted in a combined steam reforming-methanation stage, along with some by-product aromatics, to produce additional synthetic natural gas products.

Abstract: This invention relates to an improved adiabatic process for separating hydrogen from mixed gas streams using hydridable materials as the absorbing medium. The improvement comprises utilizing a composite comprising a thermal ballast in admixture with the hydride material to absorb the heat of reaction and to aid in desorption. By virtue of the intimate contact of the ballast with the hydridable material rapid cycle times plus good bed utilization are achieved.

Abstract: A pneumatic radial tire is made by applying a restricting member circumferentially around a cylindrical radial tire carcass. Shaping pressure inflates the carcass to a toroidal shape having a section height less than a predetermined section height so that the carcass can be enclosed by a mold for vulcanization. After vulcanization, normal inflation pressure is sufficient to further expand the restricting member and carcass to a shape having a section height greater than the predetermined section height so that the carcass may be pressed into gripping engagement with a replaceable tread belt.

Abstract: A folded fabric reinforcement member provides a plurality of reinforcing layers equivalent to at least one ply and at least one breaker of a conventional bias tire or at least one ply and at least one belt of a conventional radial or bias-belted tire. The cord angle of the belts is less than that of the ply and results from offsetting one outer zone of a fabric sheet from the other before impregnating the central zone thereof with elastomeric material and folding thereof to form a folded fabric reinforcement member.

Abstract: A tire tread and method of application of a tire tread. The tread is not provided with an undertread. At least one transversely extending tread element is interconnected with a pair of tread portions in such a manner as to permit canting of the tread portions relative to the tread element whereby the length of the tread is adjustable to achieve a tread length corresponding to a particular tire circumference to facilitate application of the tread to a tire.

Abstract: A tire and a tire and rim assembly. The rim comprises a pair of annular support members extending axially outwardly of a pair of bead seat surfaces. The axial width of a tread of the tire is greater than the axial distance between the annular support members. A plurality of sidewall appendages are connected on the exterior surfaces of the sidewalls of the tire such that they are spaced apart from the annular support members when the tire is inflated and in supporting contact with the annular support members when the tire is uninflated and under load. The sidewall appendages extend radially and axially along the sidewalls such distances that when the tire is uninflated and under normal load, the support members support the sidewall appendages to maintain the shape of the sidewalls substantially the same as when the tire is under normal inflation pressure and load.