A water-soluble thermoplastic composition for three-dimensional modeling comprising poly(2-ethyl-2-oxazoline) is disclosed. The composition in the form of an extrudable object may be used for extrusion in a programmed pattern onto a base as a ribbon of liquified polymer to create a support structure for a prototype object or to create a water-soluble polymeric element.

Water soluble rapid prototyping support and mold material

An ink-receptive sheet comprising a substrate bearing on at least one major surface an ink-receptive coating comprising at least two layers, a thin upper layer and a thick base layer, wherein said upper layer comprises a high viscosity binder selected from the group consisting of methylcellulose, hydroxypropyl methylcellulose, and blends thereof.

Ink-receptive sheet

Pressure-sensitive adhesives comprise blends of acrylate copolymer copositions with polyalkyloxazolines. The blends exhibit enhanced cohesive strength with balanced adhesive properties and are useful as coatings for sheet materials.

Polyalkyloxazoline-reinforced acrylic pressure-sensitive adhesive composition

A process for rendering films, film composites, and articles made therefrom less resistant to passage of water vapor by passing a filled precursor film or film composite through the nip of interdigitating grooved rollers. The films or film composites are generally formed using a precursor film of a film forming polyolefin or polyolefin blend, with a relatively high filler loading and optionally an elastomer. A process is disclosed for making diapers or other disposable items where a relatively high water vapor is coupled with a resistance to liquid strikethrough. In one embodiment of the invention, the interdigitating grooved rollers are maintained in a temperature range of from about 91° F. to about 159° F.

Process for adjusting wvtr and other properties of a polyolefin film

The present invention is an improved process for separating alcohols from ethers and/or hydrocarbon raffinate in an etherification process. The excess alcohol reactant, which forms azeotrope mixtures with the product ethers and C 4 -C 7 raffinate, is removed by passing the liquid azeotrope mixture over a pervaporation membrane which effectively breaks the azeotrope and permeates the alcohol with high flux and high selectivity. In a typical etherification process, one or more pervaporation membrane units can be located ahead of the ether/raffinate distillation step, in conjunction with the distillation step with a liquid side draw, after the distillation step, or a combination of any of the above. The present invention also provides an improved process for separating alcohols from ethers and/or hydrocarbon raffinate in an ether decomposition process for the production of high purity iso-alkene products. In this embodiment, one or more pervaporation membranes are used to recover alcohols from the decomposition product stream.

Pervaporation process for separating alcohols from ethers

Miscible blends of poly-2-oxazolines and thermoplastic polymers are disclosed herein. These blends exhibit a single glass transition point indicative of a miscible blend. The blends of this invention are useful as membranes, particularly separation membranes for mixtures of organic compounds or organic compounds and water and a perevaporation process.

Miscible polymer blends containing poly(2-alkyl-2-oxazoline)

The specification discloses a polymer blend comprising from about 20 to 90% of an olefin combination including a high density polyolefin and a linear low density polyolefin, from about 6 to about 60% of a vinyl aromatic polymer and from about 4 to about 20% of a compatibilizer therefore.

Polyethylene/EPDM-graft polystyrene blends

Miscible blends of poly-2-oxazolines and thermoplastic polymers are disclosed herein, These blends exhibit a single glass transition point indicative of a miscible blend. The blends of this invention are useful as membranes, particularly separation membranes for mixtures of organic compounds or organic compounds and water and a perevaporation process.

Miscible polymer blends containing poly(2-oxazoline)

A compression stressed liner for refrigeration equipment and a method of stressing the same is disclosed. The effective life span of refrigeration equipment liners can be significantly increased by compression stressing. Stressing liners in compression before or during assembly of refrigeration equipment is accomplished by bending the liners, molding the liners to form a shallow arc in one direction of its structure or shrinking the liners and then securely attaching the same. Compression stressed liners counteract localized tensile stresses that normally develop because of shrinking of the liners during use at temperatures substantially below assembly temperatures. Compression stressing of liners also reduces the size of or eliminates foramina on the exposed surfaces of the liners, normally increased in size by the tensile stresses, thus decreasing chemical penetration and attack of liners.

Compression stressed liner for refrigeration equipment and method of making same

A small detonating device such as a rifle, pistol or shotgun primer or percussion cap is employed to provide gas and/or hydraulic pressure for the testing of the relative strength of articles such as plastic containers, sheet, tube and the like.

Edward H. Yonkers

Papers

Miscible polymer blends containing poly(2-alkyl-2-oxazoline)

Polyethylene/EPDM-graft polystyrene blends

Miscible polymer blends containing poly(2-oxazoline)

Compression stressed liner for refrigeration equipment and method of making same

Method and apparatus for testing articles employing a small arms primer