Abstract: The present invention relates to a deep base or accent coating composition comprising an acrylic based binder and a Zn++ additive. The composition of the present invention resists water staining better than comparable formulations that do not contain the additive.

Abstract: The present invention relates to a process for preparing an aqueous dispersion of a vinyl acetate polymer comprising the step of polymerizing vinyl acetate under emulsion polymerization conditions in the presence of a chain transfer agent which is a hypophosphite salt or X—R1—SH, where R1 is a C1-C4 alkyl group and X is sulfonate, hydroxyl, sulfate, phosphate, phosphonate, carboxylic acid or a salt thereof, or C1-C3-alkyl carboxylate. The process provides a way of lowering the viscosity of the vinyl acetate polymer at a given solids content.

Abstract: An aqueous personal care composition comprising 0.5 to 10 wt % polymer encapsulated particles of titanium dioxide or zinc oxide; said polymer encapsulated particles comprising: (i) particles of titanium dioxide or zinc oxide having an average particle diameter from 10 to 200 nm; (ii) 0.25 to 10 wt % water-soluble sulfur acid-functional first polymer, based on weight of said particles of titanium dioxide or zinc oxide; and (iii) from 10% to 200%, by weight second polymer, based on weight of said particles of titanium dioxide or zinc oxide, wherein the second polymer at least partially encapsulates said particle of titanium dioxide or zinc oxide.

Abstract: The present invention relates to composition comprising a) first polymer particles that are functionalized with structural units of a TiO2-adsorbing monomer, and second polymer particles that are functionalized with structural units of diacetone acrylamide; and b) a dihydrazide or a diamine crosslinking agent, based on the weight of the composition. Coatings prepared from the composition of the present invention shows improved hardness and gloss.

Abstract: The present invention relates to a deep base or accent coating composition comprising an acrylic based binder and a Zn++ additive. The composition of the present invention resists water staining better than comparable formulations that do not contain the additive.

Abstract: The present invention relates to a process for preparing an aqueous dispersion of a vinyl acetate polymer comprising the step of polymerizing vinyl acetate under emulsion polymerization conditions in the presence of a chain transfer agent which is a hypophosphite salt or X—R1—SH, where R1 is a C1-C4 alkyl group and X is sulfonate, hydroxyl, sulfate, phosphate, phosphonate, carboxylic acid or a salt thereof, or C1-C3-alkyl carboxylate. The process provides a way of lowering the viscosity of the vinyl acetate polymer at a given solids content.

Abstract: The present invention is a composition comprising a) an aqueous dispersion of TiO2 particles encapsulated with an encapsulating acrylic or styrene-acrylic polymer comprising from structural units of diacetone acrylamide; and b) adipic acid dihydrazide. The composition is useful in coatings applications and shows a surprising improvement in gloss over compositions that do not include diacetone acrylamide functionalized encapsulating polymer and adipic acid dihydrazide.

Abstract: The present invention relates to a process for preparing an aqueous dispersion of polymer encapsulated TiO2 particles, comprising a multistage polymerization steps that includes a relatively large amount of low Tg first monomers and a relatively small amount of high Tg second monomers that comprise a relatively high concentration of an acid monomer. The dispersion of encapsulated TiO2 particles shows significantly improved freeze-thaw stability as compared with prior art processes that do not include staging with the second monomers described herein.

Abstract: The present invention relates to a process for preparing an aqueous dispersion of a vinyl acetate polymer comprising the step of polymerizing vinyl acetate under emulsion polymerization conditions in the presence of a chain transfer agent which is a hypophosphite salt or X—R1—SH, where R1 is a C1-C4 alkyl group and X is sulfonate, hydroxyl, sulfate, phosphate, phosphonate, carboxylic acid or a salt thereof, or C1-C3-alkyl carboxylate. The process provides a way of lowering the viscosity of the vinyl acetate polymer at a given solids content.

Abstract: The present invention relates to a composition comprising an aqueous dispersion of submicron-sized polymer particles and micron-sized polymer beads, wherein the polymer particles or beads or both are functionalized with phosphorus acid groups. The composition of the present invention is useful for providing a matte finish on substrates, such as leather, textiles, wallboard, decorative coatings, concrete, and wood, with improved stain resistance. The present invention also relates to a leather substrate coated with a clear matte finish comprising an acrylic or styrene-acrylic polymer film and micron-sized polymer beads, wherein the film or the beads or both are functionalized with a phosphorus acid monomer.

Abstract: The present invention relates to a process for preparing an aqueous dispersion of polymer encapsulated TiO2 particles, comprising a multistage polymerization steps that includes a relatively large amount of low Tg first monomers and a relatively small amount of high Tg second monomers that comprise a relatively high concentration of an acid monomer. The dispersion of encapsulated TiO2 particles shows significantly improved freeze-thaw stability as compared with prior art processes that do not include staging with the second monomers described herein.

Abstract: The present invention relates to a pre-paint composite comprising an aqueous slurry of TiO2 particles and a polymeric binder, wherein from 35 to 90 weight percent of the polymeric binder is attached to the TiO2 particles, based on the weight of polymeric binder in the pre-paint composite. The pre-composite of the present invention is useful in paint compositions, particularly those that require freeze-thaw stability.

Abstract: The present invention relates to a process for preparing an aqueous dispersion of a vinyl acetate polymer comprising the step of polymerizing vinyl acetate under emulsion polymerization conditions in the presence of a chain transfer agent which is a hypophosphite salt or X—R1—SH, where R1 is a C1-C4 alkyl group and X is sulfonate, hydroxyl, sulfate, phosphate, phosphonate, carboxylic acid or a salt thereof, or C1-C3-alkyl carboxylate. The process provides a way of lowering the viscosity of the vinyl acetate polymer at a given solids content.

Abstract: The present invention relates to a pre-paint composite comprising an aqueous slurry of TiO2 particles and a polymeric binder, wherein from 35 to 90 weight percent of the polymeric binder is attached to the TiO2 particles, based on the weight of polymeric binder in the pre-paint composite.

Abstract: The present invention relates to a pre-paint composite comprising an aqueous slurry of TiO2 particles and attached and unattached polymeric binder, and a sufficient amount of a secondary alcohol ethoxylate of the formula C10-15H22-32O(CH2CH2O)xH to give 35 to 90 weight percent attachment of polymeric binder to the TiO2 particles, based on the weight of total polymeric binder in the pre-paint composite, where x is from 15 to 50; and the O(CH2CH2O)xH group is bonded to a CH group on the C10-15H22-32 chain. The present invention also relates to a coatings composition containing the composite as well as a process for preparing the pre-paint composite and the coatings composition.

Abstract: The present invention relates to a pre-paint composite comprising an aqueous slurry of TiO2 particles and attached and unattached polymeric binder, and a sufficient amount of a secondary alcohol ethoxylate of the formula C10-15H22-32O(CH2CH2O)xH to give 35 to 90 weight percent attachment of polymeric binder to the TiO2 particles, based on the weight of total polymeric binder in the pre-paint composite, where x is from 15 to 50; and the O(CH2CH2O)xH group is bonded to a CH group on the C10-15H22-32 chain. The present invention also relates to a coatings composition containing the composite as well as a process for preparing the pre-paint composite and the coatings composition.

Abstract: A slidable electronic device includes a main body, a cover, and a sliding module sandwiched between the main body and the cover, and groups of resilient members. The sliding module includes a guiding member including a first guiding portion and a second guiding portion arranged side by side. The first guiding portion has a first guiding direction, and the second guiding portion has a second guiding direction that is reversed to the first guiding direction. Two sliding members slidable along the first and second guiding directions respectively. Two restricting members are respectively mounted on the first and second guiding portions, and each restricting member is opposite to one sliding member and being adjacent to the other sliding member. Each restricting member prevents the adjacent sliding member from detaching from the guiding member. Each group of resilient members is resisted between one restricting member and one sliding member.

Abstract: A hinge assembly for use in a flat display monitor includes a support member, a rotational base and a pivot mechanism for rotatably connecting the rotational base to the support member. The support member includes two first sidewalls, a first resisting surface and a second resisting surface. Each first sidewall defines a pivoting hole. The pivot mechanism includes a pivotal shaft, a limiting washer and a fixing element. The pivotal shaft includes a shaft portion running through the pivoting bole. The pivotal shaft is non-rotatable relative to the support member. The limiting washer includes a first restricting surface and a second restricting surface. The limiting washer is non-rotatable relative to the rotational base with the first restricting surface and the second restricting surface configured for resisting the first resisting surface and the second resisting surface respectively.

Abstract: An exemplary hinge assembly (300) for use in a flat display monitor includes a support member (10), a rotational base (20) and a pivot mechanism (30) for rotatably connecting the rotational base to the support member. The rotational base includes a fixing board (22) and a side board (24) disposed at an end of the fixing board, the side board defining an engaging hole (242) and forming an inwardly bent portion (240) at a distal end edge thereof. The support member includes an extending seat (16) defining a round pivoting hole (1601), and a retaining portion (161) extending from an exterior side of the extending seat. The retaining portion of the side board is configured for blocking the inwardly bent portion of the side board so that a range of rotation of the rotational base relative to the support member is between a first utmost position and a second utmost position.

Abstract: A hinge mechanism includes a shaft (1), a cam (2), a housing (3), an arresting member (6), a cam follower (4), and an elastic member (5). The housing has an open housing end (30), and an opposite partially open housing end (31) including a transverse wall (35). The cam, the cam follower, the elastic member and the arresting member surround the shaft in turn. The cam follower and the elastic member are received in the housing. The cam is partly received in the housing. The transverse wall of the partially open housing end of the housing prevents the cam from sliding further into the housing. The arresting member is disposed adjacent to the open housing end allowing the arresting member sliding into the housing. The cam is rotatable relative to the shaft and non-rotatable relative to the housing, and the cam follower is non-rotatable relative to the shaft.