Abstract: Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. In addition, the tensile properties of an article of vulcanized rubber can be improved to an unusually effective degree by immersing the already vulcanized article in a solution of a vulcanizing agent to cause the rubber of the article to absorb or imbibe the vulcanizing agent from the solution, and then immersing the rubber and the imbibed vulcanizing agent in a heated liquid bath to increase the degree of vulcanization.

Abstract: Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. In addition, the tensile properties of an article of vulcanized rubber can be improved to an unusually effective degree by immersing the already vulcanized article in a solution of a vulcanizing agent to cause the rubber of the article to absorb or imbibe the vulcanizing agent from the solution, and then immersing the rubber and the imbibed vulcanizing agent in a heated liquid bath to increase the degree of vulcanization.

Abstract: A water soluble hydrophilic resin in an alcohol-free polymer solution and a method of application to natural rubber and synthetic latex products such as surgeon's gloves, catheters and condoms to increase the lubricity of the rubber products where they come into contact with skin or other tissue. The hydrophilic resin is applied in a single application step in an aqueous solution in the absence of alcohol or a separate acid priming step.

Abstract: An apparatus for automatically electronically testing condoms includes an inflation tub that has an internal chamber for housing a plurality of condoms. A jug assembly has a plurality of jugs. Each of the jugs receives a condom from the inflation tub. A mandrel assembly has a plurality of mandrels. Each of the mandrels receives a condom from one of the jugs to electronically test the condom.

Abstract: An apparatus for automatically electronically testing condom includes an inflation tub (12) that has an internal chamber for housing a plurality of floating condoms (24). A jug assembly (16) has a plurality of jugs. Each of the jugs (68) is mounted on a rotating mounting plate (72) and receives a condom (24) from the inflation tub by employment of a plurality of pick-up tubes (56) as mounted on a rotating disc (60) driven by a rotating shaft (58). A mandrel assembly (18) has a plurality of mandrels which are loaded with condoms after the plurality of jugs is loaded by vacuum suction force from loading tube (64) mounted on a rotating front turret plate (66). Each of the mandrels receives a condom from one of the jugs to electronically test the condom on a test drum roller (not shown), thereby permitting separation of acceptable condom articles from failed condom articles in terms of ability to insulate an applied voltage at test drum roller.

Abstract: A water soluble hydrophilic resin in an alcohol-free polymer solution and a method of application to natural rubber and synthetic latex products such as surgeon's gloves, catheters and condoms to increase the lubricity of the rubber products where they come into contact with skin or other tissue. The hydrophilic resin is applied in a single application step in an aqueous solution in the absence of alcohol or a separate acid priming step.

Abstract: A method of making a latex article, by contacting a latex article with water, an aqueous emulsion comprising a high-density, substantially linear hydrocarbon polymer, and an acid-activated oxidizing agent or initiator, mixing in an acid to the reaction mixture to activate the oxidizing agent or initiator, then, after a first selected period of time sufficient to adhere the polymer to the surface of the article, mixing a stopping agent into the activated reaction mixture to substantially reduce or halt the oxidization and, after a second selected period of time sufficient to reduce substantially or halt oxidization, neutralizing the article with a neutralization mixture comprising water and a base.

Abstract: A method of making a latex article, by contacting a latex article with water, an aqueous emulsion comprising a high-density, substantially linear hydrocarbon polymer, and an acid-activated oxidizing agent or initiator, mixing in an acid to the reaction mixture to activate the oxidizing agent or initiator, then, after a first selected period of time sufficient to adhere the polymer to the surface of the article, mixing a stopping agent into the activated reaction mixture to substantially reduce or halt the oxidization and, after a second selected period of time sufficient to reduce substantially or halt oxidization, neutralizing the article with a neutralization mixture comprising water and a base.

Abstract: This invention relates to elastomeric flexible articles (e.g., film articles) that exhibit enhanced lubricity ("slip") with respect to both dry and damp surfaces, particularly skin or other tissue of the wearer, as compared to similar articles or films that are not treated as described herein. This invention also relates to processes for making such articles or films.

Abstract: This invention relates to elastomeric flexible articles (e.g., film articles) that exhibit enhanced lubricity ("slip") with respect to both dry and damp surfaces, particularly skin or other tissue of the wearer, as compared to similar articles or films that are not treated as described herein. This invention also relates to processes for making such articles or films.

Abstract: Condoms and similar sheaths are leak tested by being placed over a porous support form referred to as a mandrel similar in shape to the condom, and applying a pressure differential between the outside and the inside of the mandrel, which is preferably hollow. With the open end of the condom sealed in an airtight manner against a smooth surface at the base of the mandrel, leaks are detected by the flow of air or other gas into the mandrel interior.