Abstract: A reactive primer compound is provided that can be used as an adhesion promoter on various substrates, particularly metal-containing substrates. The reactive primer compound has a diketone group that can form chelates with various metals through coordination chemistry plus an oxirane group that can undergo ring opening reactions with components of an adhesive or coating composition. Articles containing a metal-containing substrate and a primer layer, which includes the reactive primer compound, positioned adjacent the metal-containing substrate are also provided. The articles can further include a cured composition or a cured composition formed therefrom, wherein the curable composition typically includes an epoxy resin and a curative for the epoxy resin.

Abstract: A reactive primer compound is provided that can be used as an adhesion promoter on various substrates, particularly metal-containing substrates. The reactive primer compound has a diketone group that can form chelates with various metals through coordination chemistry plus an oxirane group that can undergo ring opening reactions with components of an adhesive or coating composition. Articles containing a metal-containing substrate and a primer layer, which includes the reactive primer compound, positioned adjacent the metal-containing substrate are also provided. The articles can further include a cured composition or a cured composition formed therefrom, wherein the curable composition typically includes an epoxy resin and a curative for the epoxy resin.

Abstract: A bonded abrasive article comprises a plurality of abrasive particles, each particle having a coating of a catechol-like polymer resin on one side. The bonded abrasive article also comprises a phenolic resin binder that forms a bonded abrasive matrix of the bonded abrasive article. The plurality of abrasive particles are retained in the phenolic binder.

Abstract: Antistatic polymers including divalent segments represented by formula a) wherein R1 represents hydrogen or methyl, R2 represents an alkylene group having from 1 to 10 carbon atoms, R3 and R4 independently represent alkyl groups having from 1 to 4 carbon atoms, and X represents a halogen. Methods of making antistatic polymers and uses thereof as PSAs are also disclosed.

Abstract: An adhesion promoter, a curable composition containing the adhesion promoter, a cured composition formed from the curable composition, and an article containing the cured composition are provided. The adhesion promoter, which is formed by reacting a polyepoxide with a mercaptosilane that has a hydrolyzable silyl group, has at least one epoxide group and at least one hydrolyzable silyl group. The epoxide groups allow incorporation of the adhesion promoter into the polymeric matrix of the cured composition and the hydrolyzable silyl groups allow bond formation with various substrates.

Abstract: Crosslinkable compositions are provided that contain a) a polymeric material having at least two terminal dithiocarbamate groups or two terminal dithiocarbonate groups and b) a monomer composition that includes at least a crosslinking monomer having two or more ethylenically unsaturated groups. The polymeric materials in the crosslinkable compositions undergo chain extension and crosslinking reactions when exposed to actinic radiation in the ultraviolet region of the electromagnetic spectrum. Additionally, crosslinked compositions, articles that contain the crosslinkable compositions or the crosslinked compositions, and methods of making the articles are provided.

Abstract: Crosslinkable compositions are provided that contain a) a polymeric material having at least two terminal dithiocarbamate groups or two terminal dithiocarbonate groups and b) a monomer composition that includes at least a crosslinking monomer having two or more ethylenically unsaturated groups. The polymeric materials in the crosslinkable compositions undergo chain extension and crosslinking reactions when exposed to actinic radiation in the ultraviolet region of the electromagnetic spectrum. Additionally, crosslinked compositions, articles that contain the crosslinkable compositions or the crosslinked compositions, and methods of making the articles are provided.

Abstract: Controlled radical initiators, reaction mixtures containing the controlled radical initiators and various ethylenically unsaturated monomers, and polymeric materials formed from the reaction mixtures are provided. The controlled radical initiators are bis-dithiocarbamate or bis-dithiocarbonate compounds with a single carbon atom between the two dithiocarbamate or dithiocarbonate groups. Polymeric materials such as homopolymers, random copolymers, and block copolymers can be prepared using the controlled radical initiators.

Abstract: Controlled radical initiators, reaction mixtures containing the controlled radical initiators and various ethylenically unsaturated monomers, and polymeric materials formed from the reaction mixtures are provided. The controlled radical initiators are bis-dithiocarbamate or bis-dithiocarbonate compounds with a single carbon atom between the two dithiocarbamate or dithiocarbonate groups. Polymeric materials such as homopolymers, random copolymers, and block copolymers can be prepared using the controlled radical initiators.