3M

About: 3M is a company organization based out in Saint Paul, Minnesota, United States. It is known for research contribution in the topics: Layer (electronics) & Coating. The organization has 7603 authors who have published 7907 publications receiving 254227 citations. The organization is also known as: Minnesota Mining and Manufacturing Company & 3M Company.

Ultraviolet polymerization of acrylate monomers using oxidizable tin compounds

Abstract: Pressure-sensitive adhesive tape having a photopolymerized adhesive coating of a mixture of alkyl acrylate and/or methacrylate and preferably also copolymerizable monoethylenic monomer such as acrylic acid in which is dissolved an oxidizable tin salt such as stannous octoate. The tin salt permits thick layers of the mixture to be photomolymerized in air and allows an unusual tolerance of oxygen when photopolymerizing thin layers to provide pressure-sensitive adhesive coatings.

Coated abrasives and methods of preparation

Abstract: Methods for preparing abrasive articles and novel methods of making abrasive articles are presented. One method includes inserting a fibrous material adjacent an interior surface of a drum. A composition comprising an organic binder precursor material is then placed in the drum, and the drum is rotated such that centrifugal forces distribute the composition, including the organic binder precursor material, uniformly about the fibrous material. The composition is exposed to conditions sufficient to solidify the organic binder precursor material such that an endless, flexible, seamless substrate is formed having an outer surface formed adjacent the interior surface of the drum, an inner surface opposite the outer surface and the fibrous material embedded therein. Coated abrasives formed by this method, as well as other methods, are provided wherein an effective amount of a fibrous reinforcing material is engulfed within an organic polymeric binder material. Sufficient binder is present such that there is one or more regions of organic binder material free of fibrous reinforcing material, to which abrasive particles are attached.

Composition, apparatus and method for sensing ionic components

Abstract: A composition of matter useful for sensing the concentration of an ionic component in a medium comprising a cationic or anionic matrix material and a sensing component chemically bonded to the matrix material and being effective to provide a signal in response to the presence of the ionic component in the medium.

Elastomeric tapes with microtextured skin layers

Abstract: Microtextured elastomeric laminate tape (1) comprising a laminate with at least one elastomeric layer (3) and at least one thin skin layer (2, 4), and an adhesive layer, preferably prepared by coextrusion of the layers followed by stretching the laminate past the elastic limit of the skin layers and then allowing the laminate tape to recover

Fixing of tetra(hydrocarbyl)borate salt imaging systems

Abstract: FIXING OF TETRA (HYDROCARBYL) BORATE SALT IMAGING SYSTEMS Abstract It is highly desirable to have light sensitive imaging systems which do not use expensive silver materials in their construction, yet still have some of the properties of silver imaging systems such as their ability to be fixed. Light sensitive systems using tetra(hydrocarbyl) borates are easily constructed and do not require expen-sive materials therein. It has been found that the borates may be fixed by converting the tetra(hydrocarbyl) borate to a compound which does not have four carbon-to-boron bonds.