Abstract:
A composition comprising: a)one or more film forming resins having at least one functional group capable of polymerization; b) one or more adhesion promoters comprising compounds containing one or more unsaturated groups capable of free radical polymerization and one or more trialkoxy silane groups; c) one or more fillers capable of imparting abrasion resistance to the composition; d) one or more compounds which is reactive with the film forming resin which also contains an acidic moiety; and e) one or more compounds comprising a siloxane backbone and one or more active hydrogen groups capable of reacting with the functional groups on a glass bonding adhesive: one or more second adhesion promoters comprising one or more silicon, titanium, zirconium, aluminum, or metal containing compounds; organic materials having reactive groups reactive with reactive groups on the surface of substrates or adhesives; or mixtures thereof.
Abstract:
Polymers, and particularly conventional commodity bulk polymers, are modified to have a surface activity of interest using a surface modifying polymer that includes a moiety that favors migration to the surface of the bulk polymer together with a moiety provides the activity of interest (e.g., biocidal, wettability modifying (hydrophobic or hydrophilic), resistance to radiant energy, providing a functional group for functionalizing the surface, etc.). The surface modifying polymer is combined with the bulk polymer, and, due to the presence of the moiety that favors migration, concentrates primarily on the surface of the bulk polymer such that the moiety that provides the activity of interest is located primarily on the surface of the bulk polymeric article which is produced. Advantageously, only a minimal amount (such as, e.g., about 2 weight %) of polymeric surface modifier is needed. Being able to achieve desired properties (such as biocidal activity, wettability modification, etc.) without needing much polymeric surface modifier is highly advantageous.
Abstract:
A crosslinker for polymerizing a film-forming material including an alkyl or aromatic compound comprising at least two functional groups reactive with a film-forming resin and at least one pendent group having a nonionic metal coordinating structure. Coating compositions can include a film-forming material and the crosslinker. The coating compositions can be used to coat a substrate, such as a metal substrate. Applied coating layers on substrates can be cured to form coating films.
Abstract:
Polymers, and particularly conventional commodity bulk polymers, are modified to have a surface activity of interest using a surface modifying polymer that includes a moiety that favors migration to the surface of the bulk polymer together with a moiety provides the activity of interest (e.g., biocidal, wettability modifying (hydrophobic or hydrophilic), resistance to radiant energy, providing a functional group for functionalizing the surface, etc.). The surface modifying polymer is combined with the bulk polymer, and, due to the presence of the moiety that favors migration, concentrates primarily on the surface of the bulk polymer such that the moiety that provides the activity of interest is located primarily on the surface of the bulk polymeric article which is produced. Advantageously, only a minimal amount (such as, e.g., about 2 weight %) of polymeric surface modifier is needed. Being able to achieve desired properties (such as biocidal activity, wettability modification, etc.) without needing much polymeric surface modifier is highly advantageous.
Abstract:
Disclosed is a method of making reduced VOC polymers and coating compositions containing such polymers. Provided is a mixture (I) comprising a reactant mixture (a) of polymerizable components and a nonvolatile solvent (bnv) that (i) is not a crystalline solid at 25° C., (ii) is nonvolatile, (iii) comprises at least one functional group (F1) and (iv) is a fluid solid. Reactant mixture (a) is polymerized to provide a polymer (a′). The at least one functional group (F1) of nonvolatile solvent (bnv) is reacted with one or more reactants (e) to obtain a nonvolatile solvent (b′nv) comprising at least two functional groups (F2). Obtained is a mixture (II) comprising polymer (a′) in nonvolatile solvent (b′nv) comprising at least two functional groups (F2). The at least one functional group (F1) is substantially nonreactive: (1) with the components of reactive mixture (a), (2) under the polymerization conditions which polymerize reactant mixture (a), and (3) with polymer (a′).
Abstract:
A curable, aqueous film-forming composition is provided that includes a polymeric binder comprising reactive functional groups, a crosslinking agent having at least two functional groups that are reactive with the functional groups of the polymeric binder, and a copolymer flow control agent comprising at least 30 mol % of residues containing alternating residues from a donor monomer and from an acceptor monomer. The copolymer contains at least 15 mol % of an isobutylene type donor monomer. Components (a) and (b) are substantially hydrophobic and are prepared as an aqueous dispersion comprising polymeric microparticles, prepared by mixing components (a) and (b) together under high shear conditions.A multi-component composite coating composition is also provided, comprising a base coat deposited from a pigmented film-forming composition and a transparent topcoat applied over the base coat. The topcoat is deposited from the film-forming composition described above.
Abstract:
Compositions of biomolecules such as nucleic acids that form molten salts are provided. These compositions molten compositions that have useful electrical properties. Such compositions include a salt of (i) an organic polymer ion such as a polynucleic acid anion, and (ii) a polyether or polysiloxane couterion. Methods of making and using such compositions, along with electrical devices such as memory devices, are also provided.
Abstract:
The invention relates to a method for preparing aqueous dispersions, especially electrodepositable aqueous dispersions. The invention requires the use of a polymer (a) comprising one or more water dispersible groups per molecule and one or more functional groups (f), and at least one crosslinking agent (b) comprising one or more blocked functional groups (fb) reactive with polymer (a) after unblocking. Crosslinking agent (b) has a Tg of from 40 to 70° C./105 to 158° F. and is a solid at 23.9° C./75° F. when at 100% by weight solids. Crosslinking agent (b) is mixed into polymer (a) at a temperature at or above the melting temperatures of both polymer (a) and compound (b) but below the temperature at which blocked functional groups (fb) unblock. Sufficient water is added to the resulting melt-mixture (ii) to provide an aqueous dispersion.
Abstract:
The invention provides curable waterborne coating compositions comprising an aqueous dispersion (A) comprising an organic binder component (A1) comprising at least 5% by weight of a reactive component (a), based on the total weight of organic binder component (A1), and at least one crosslinking component (B). The reactive component (a) is substantially free of any heteratoms and is a not a crystalline solid at room temperature and comprises from (i) 12 to 72 carbon atoms, and (ii) at least two functional groups. The curable waterborne coating compositions of the invention show significantly improved pop resistance while also providing improved chip resistance, weathering resistance, flexibility, and/or scratch & mar resistance.
Abstract:
A curable, aqueous film-forming composition is provided that includes a polymeric binder comprising reactive functional groups, a crosslinking agent having at least two functional groups that are reactive with the functional groups of the polymeric binder, and a copolymer flow control agent comprising at least 30 mol % of residues containing alternating residues from a donor monomer and from an acceptor monomer. The copolymer contains at least 15 mol % of an isobutylene type donor monomer. Components (a) and (b) are substantially hydrophobic and are prepared as an aqueous dispersion comprising polymeric microparticles, prepared by mixing components (a) and (b) together under high shear conditions. A multi-component composite coating composition is also provided, comprising a base coat deposited from a pigmented film-forming composition and a transparent topcoat applied over the base coat. The topcoat is deposited from the film-forming composition described above.