Minnesota Mining and Manufacturing Company

3m Innovative Properties Company

Debra L Wilfong

Richard J Rolando

Michael C Palazzotto

Peggy S Willett

David J Drath

Henry B Clark, Iii

Timothy A Salaba

Walton J Hammar

Dan L Fanselow

Denise R Rutherford

Forrest J Rouser

John H Ko

Lawrence W Craighead

James A Weldon

James C Margl

Multilayered barrier structures containing a gas barrier layer of a non-chlorine containing organic polymer which is substantially impermeable to oxygen gas and a moisture barrier layer of a mesophase propylene-based material are provided. These structures are environmentally compatible and radiation resistant, and exhibit one or more additional properties, including gas barrier properties, moisture barrier properties, toughness, heat sealability, softness, and quietness during wrinkling. Also provided are methods of preparing and using such multilayered barrier structures, and articles, such as films, pouches, and tubings, formed from these structures.

Method of using a multilayered barrier structure

Method of forming multilayered barrier structures

Acrylate-only and epoxy-acrylate thermoset resins exhibit high temperature damping behavior. These materials are suitable for damping vibrations in structures and component parts of devices where high temperature performance is required, such as in automobiles, aircraft, industrial equipment and appliances.

Vibration damping constructions using acrylate-containing damping

Multilayered barrier structures comprising a gas barrier layer of a non-chlorine containing organic polymer which is substantially impermeable to oxygen gas and a moisture barrier layer of a mesophase propylene-based material are provided. These structures are environmentally compatible and radiation resistant, and exhibit one or more additional properties, including gas barrier properties, moisture barrier properties, toughness, heat sealability, softness, and quietness during wrinkling. Also provided are methods of preparing and using such multilayered barrier structures, and articles, such as films, pouches, and tubings, formed from these structures, as well as multilayer barrier structures with additional graft layers affixed thereto through the application of a dose of ionizing radiation.

Method for forming multilayered barrier structures

Multilayered tubing which exhibits one or more desirable characteristics of polyvinyl chloride (PVC) tubings, such as clarity, flexibility and toughness, but without the environmental and health hazards associated with PVC materials, is provided. Also provided is a method of preparing such tubing.

Flexible, chlorine free multilayered tubing

A method of processing a lens is disclosed. A lens blank and a lens block are each provided with a structured surface having a plurality of tapered elements. The lens blank is releasably attached to the lens block by pressing the structured surface of the lens blank against the structured surface of the lens block, followed by subjecting the mounted lens blank to lens processing operations.

Method of processing a lens and means for use in the method

Multilayered barrier structures comprising a gas barrier layer of a non-chlorine containing organic polymer which is substantially impermeable to oxygen gas and a moisture barrier layer of a mesophase propylene-based material are provided. These structures are environmentally compatible and radiation resistant, and exhibit one or more additional properties, including gas barrier properties, moisture barrier properties, toughness, heat sealability, softness, and quietness during wrinkling. Also provided are methods of preparing and using such multilayered barrier structures, and articles, such as films, pouches, and tubings, formed from these structures.

Multilayered barrier structures

Degradable multilayered structures

A reaction injection molding machine provides for independent spring actuation of pistons in metering cylinders. Individual compression of the springs is provided by hand screw compression mechanisms. The pressure level of the liquid in each metering cylinder is adjusted to a desired level of pressurization by the total energy transferred to the spring. Impingement mixing of liquid streams from each metering cylinder is synchronized by a valving rod which includes a plurality of mixing heads. Upon appropriate positioning, a mixing head opens an orifice from each metering cylinder to allow streams of liquid to be expelled into impinging contact. The resultant product is directed by the mixing head into a separate collection vessel associated with that mixing head where the product may react and solidify.

Reaction injection molding machine

A reaction injection molding machine provides for independent spring actuation of pistons in metering cylinders. Individual compression of the springs is provided by hand screw compression mechanisms. The pressure level of the liquid in each metering cylinder is adjusted to a desired level of pressurization by the total energy transferred to the springs. Impingement mixing of liquid streams from each metering cylinder is synchronized by a valving rod which includes a plurality of mixing heads. Upon appropriate positioning, a mixing head opens an orifice from each metering cylinder to allow streams of liquid to be expelled into impinging contact. The resultant product is directed by the mixing head into a separate collection vessel associated with that mixing head where the product may react and solidify.

Growing community of inventors

Lake Elmo, MN, United States of America

Debra L Wilfong