Abstract:
A hard coating composition including at least the following components (A) to (E): Component (A): A poly(methyl)glycidyl ether compound derived from a chain aliphatic polyol or a chain aliphatic polyether polyol, which may or may not contain a hydroxyl group, Component (B): A silsesquioxane compound containing a cationic polymerizable group, Component (C): A silicate compound, Component (D): A silane compound containing a cationic polymerizable group, or a partial condensed compound thereof, or a mixture thereof, and Component (E): A cationic photopolymerization initiator, wherein the composition includes 5 to 40 parts by weight of the component (A), 60 to 95 parts by weight of the total of the components (B), (C) and (D), and 0.1 to 10 parts by weight of the component (E), each based on 100 parts by weight of the total of the components (A) to (D).
Abstract:
There is presently provided a stimulus-responsive polymer comprising a biodegradable polymer backbone and a stimulus-responsive pendant group attached to the biodegradable polymer backbone, wherein the biodegradable polymer backbone comprises a poly(amino ester) or a poly(amido amine), the poly(amido amine) optionally comprising a disulfide linkage in the backbone.
Abstract:
A copolymer for modifying rheology is formed of monomer units consisting essentially of at least one first monomer unit comprising a polyhedral oligomeric silsesquioxane having an ethylenically unsaturated radical; at least one second monomer unit comprising an unsaturated oligo-poly(dimethyl siloxane)(meth)acrylate; and a sufficient amount of at least one unsaturated water-soluble monomer, such that the copolymer is soluble in water. A composition may comprise an electrolyte and the copolymer. The rheology of an environment comprising an electrolyte may be modified by adding the copolymer to the environment.
Abstract:
A process for forming a composite film on a substrate comprises providing a suspension comprising an ionised polymer and functionalised carbon nanotubes in a solvent, at least partially immersing the substrate and a counterelectrode in the suspension, and applying a voltage between the substrate and the counterelectrode so as to form the composite film on the substrate. Electrical charges on the polymer and on the nanotubes have the same sign and the voltage is applied such that the charge on the substrate has the opposite sign to the charge on the polymer and the nanotubes.
Abstract:
A process of forming a composite material comprising treating pristine clay with water to form a swollen clay, intercalating the swollen clay with an organic solvent to form an organic solvent intercalated swollen clay by exchanging the water with the organic solvent while maintaining the swollen clay in a swollen state with the solvent. The organic solvent intercalated swollen clay is then treated with a silane coupling agent and the organic solvent intercalated swollen clay so modified is mixed with an epoxy matrix material to form a nanocomposite. The nanocomposite is then applied to a reinforcing material to thereby form a composite material.
Abstract:
An electroconductive polymer composition comprises a curable liquid thermosetting resin matrix; conductive nano-fibres such as carbon nano-tubes, carbon nano-fibres, metallic nano-fibres or non-conductive nano-fibres with an electrically conductive coating; and a particulate non-conductive phase discontinuously dispersed throughout the thermosetting matrix. The conductive nano-particles are dispersed throughout the matrix whereby when the thermosetting resin is cured, a percolation threshold is established within the thermoset matrix. The particulate non-conductive phase is selected from thermoplastic resin powders or exfoliated particles of nano-clay intercalated with the liquid thermosetting resin.
Abstract:
The present invention provides a countertop (10) comprising a backer sheet (16) of a relatively lightweight, rigid material; an outer layer (14) of agglomerated stone disposed on a top surface (16a) of the backer sheet (16) to create a central portion (14a) of the countertop; and an outer layer (14) of agglomerated stone disposed on a side surface (16c, 16d) of the backer sheet (16) to create an edge portion (14b, 14c) of the countertop (10); wherein the central portion (14a) and edge portion(s)(14b, 14c) form a one piece agglomerated stone layer (14). The present invention also provides a moulding process to manufacture the agglomerated stone countertop (10).
Abstract:
There is provided a method of making a nano-composite having individual nano-sized silica particles dispersed in a polymer matrix, the method comprises the step of curing a substantially homogeneous mixture of surface-functionalized nano-sized silica particles, a polymerizable resin and a curing agent, wherein said substantially homogeneous mixture is substantially free of alcoholic solvent to form the nano-composite.
Abstract:
There is provided a method of making a nano-composite having individual nano-sized silica particles dispersed in a polymer matrix, the method comprises the step of curing a substantially homogeneous mixture of surface-functionalized nano-sized silica particles, a polymerizable resin and a curing agent, wherein said substantially homogeneous mixture is substantially free of alcoholic solvent to form the nano-composite.
Abstract:
An electroconductive polymer composition comprises a curable liquid thermosetting resin matrix; conductive nano-fibers such as carbon nano-tubes, carbon nano-fibers, metallic nano-fibers or non-conductive nano-fibers with an electrically conductive coating; and a particulate non-conductive phase discontinuously dispersed throughout the thermosetting matrix. The conductive nano-particles are dispersed throughout the matrix whereby when the thermosetting resin is cured, a percolation threshold is established within the thermoset matrix. The particulate non-conductive phase is selected from thermoplastic resin powders or exfoliated particles of nano-clay intercalated with the liquid thermosetting resin.