Abstract: A toilet training system is usable in both a child's sit-down toilet mode and a child's stand-up urinal mode. The system includes a child-sized toilet seat, a vertical curvilinear element, and a padded liner for the curvilinear element. The vertical curvilinear element functions alternatively as a backrest for the child-sized toilet seat in the child's sit-down toilet mode or as a urine shield in the child's stand-up urinal mode.
Abstract: An in-line skate maintenance rack has a pair of rests for a pair of in-line skates and inclined receptacles for holding wheels removed from the skates. The pair of rests and the inclined receptacles are so positioned that removed wheels are substantially parallel to wheels attached to the pair of skates.
Abstract: Multi-purpose luggage, convertible from a backpack to a handbag, by turning the luggage inside-out, has a plurality of walls, including a peripherally-disposed, laterally-arranged side wall, a top wall, and a bottom wall. The side wall incorporates a longitudinally-arranged closable opening. Each of the walls has two faces. A pair of manually-grippable handles are secured to one face of the side wall and are complementarily disposed on opposite sides of the opening. A pair of shoulder straps are secured to the opposite face of the side wall. One end of the shoulder straps is secured to the side wall adjacent to the top wall and the other end of the shoulder straps is secured to the side wall adjacent to the bottom wall.
Abstract: In an improved method for producing a surface graft of a hydrophilic polymer upon a preformed solid or semi-solid polymer substrate having hydroperoxide groups along its surface, n-vinyl pyrrolidone is utilized as the surface-grafting monomer, the substrate is selected to be insoluble in n-vinyl pyrrolidone, and the polymerization is carried out in aqueous alkaline conditions utilizing a combination of metal salts to provide a variable valence metal ion in a reduced state capable of oxidizing to suppress homopolymerization of the monomer in the solution.When the substrate is at least partially soluble in the n-vinyl pyrrolidone, an ethylenically unsaturated monomer having a higher reactivity with the substrate than n-vinyl pyrrolidone is added to the alkaline polymerization solution as a "seeding" monomer. Addition of the "seeding" monomer results in a surface-grafted copolymer effectively externalized from the substrate.
Type:
Grant
Filed:
December 6, 1990
Date of Patent:
December 28, 1993
Assignee:
Baxter International Inc.
Inventors:
William J. Bertrand, Stephen L. Coulter, Cary Reich, Paul DeAntonio
Abstract: NO.sub.x removal is accomplished by contacting a NO.sub.x -containing stream under reducing conditions with a urea-ammonia-water composition.
Abstract: A process for upgrading technical low grade cerium/fluorine-containing residues having concentrations of silicon and iron above about 1.0 weight percent produces compositions wherein the combined silicon and iron content is less than about 1.0 weight percent. Typically, the cerium content is raised to above about 50 weight percent and sufficient fluorine is present for the fluorine-to-cerium molar ratio to be 3.0 or above. Lubricating compositions comprising a major part of a lubricant and a minor amount of said upgraded cerium/fluorine-containing residue are useful as anti-wear lubricants.
Abstract: Ruminants such as cattle are protected against selenium-deficient diseases by applying a sulfur-selenium composition to the rangelands or pasturelands where the cattle graze. The composition preferably contains the selenium in a solid solution in the sulfur.
Abstract: Non-formaldehyde emitting binders for nonwoven cellulosic materials comprise a solution copolymer of an olefinically unsaturated organic compound having at least one carboxylate group conjugated with the olefinic linkage, which is reacted with a hydroxyalkyl ester of an olefinically unsaturated carboxylic acid. The product of said reaction is admixed with a non-formaldehyde containing latex carrier to produce a binder composition which will reach substantially fully cured wet strength in 8 seconds or less.
Abstract: A fixture for holding a piece of contact material utilizes inwardly facing channels for receiving the contact materials and resilient projections on the base of the fixture to hold the contact material within the channels.
Type:
Grant
Filed:
March 29, 1989
Date of Patent:
July 14, 1992
Assignee:
Union Oil Company of California
Inventors:
Patrick H. Lloyd, Larry J. Wallace, Jeffrey L. Kopel, Billy B. Arrington
Abstract: A non-polymerizable polycarboxylate imparts greater wet strength to nonwovens bound by an emulsion polymer containing a polymerizable cross-linker.
Abstract: A multi-ply film including a thermoplastic polymeric substrate, and a vinylidene chloride polymer top-coat have a primer which anchors the substrate to the top-coat. The primer is a copolymer of one or more acrylic comonomers and a cross-linking copolymerizable comonomer having pendant free hydroxyl groups or groups convertible to free hydroxyl groups.
Abstract: A pentadienyllutetium complex is prepared by reacting a source of 2,4-dimethylpentadienyl anions with a source of trivalent lutetium cations.
Abstract: A cage boat having easily replaceable parts utilizes removable spacer rails for holding semiconductor wafers contained within a cage formed from slats removably attached to end pieces perpendicular to the slats.
Type:
Grant
Filed:
May 23, 1989
Date of Patent:
October 8, 1991
Assignee:
Union Oil Company of California
Inventors:
Michael S. Thompson, Steven R. Hubbard, Franklin D. Jackson
Abstract: There are disclosed normally tacky, pressure-sensitive adhesive compositions comprising one or more normally tacky polymers having a T.sub.g of about 0.degree. C. or less and containing (a) at least about 40 weight percent of at least one polymerized olefinically unsaturated carboxylic acid ester monomer in the polymer backbone and (b) pendant functional groups attached to the backbone and having the formula: ##STR1## wherein R.sub.1 is (i) a covalent bond which directly connects the carbonyl carbon atom of the --CHO group to a carbon atom in the backbone of the polymer or (ii) a divalent organic radical comprising a carbon atom which directly adjoins the carbonyl carbon atom of the --CHO group, the polymers also being normally tacky when cured.
Abstract: An improved wet strength binder is prepared by a process in which interaction between an olefinic carboxylic acid monomer, such as itaconic acid, and a cross-linker, such as MAGME, is minimized.
Abstract: The octane value of fuels such as gasoline is increased by adding thereto an organic compound containing a tert-butyl group bonded to a carbon or nitrogen atom, which, in turn, is bonded to yet another atom by double or triple bonds.
Type:
Grant
Filed:
August 4, 1988
Date of Patent:
July 16, 1991
Assignee:
Union Oil Company of California
Inventors:
Peter J. Jessup, Stephen G. Brass, Michael C. Croudace
Abstract: Non-formaldehyde emitting binders for nonwoven cellulosic materials comprise a solution copolymer of an olefinically unsaturated organic compound having at least one carboxylate group conjugated with the olefinic linkage, which is reacted with a hydroxyalkyl ester of an olefinically unsaturated carboxylic acid. The product of said reaction is admixed with a non-formaldehyde containing latex carrier to produce a binder composition which will reach substantially fully cured wet strength in 8 seconds or less.
Abstract: A foam barrier system which is liquid impermeable and gas permeable is prepared by coating a polymeric, microporous foam upon a substrate, applying a composition having liquid repellency properties to the foam coated upon the substrate, and curing.