208 results about "Detackifier" patented technology

Podalic foot pads of various shapes and configurations which utilize a padding material that is primarily an A-B-A triblock copolymer and a plasticizer. A-B diblock copolymers may be compounded into the padding material. An anti-bleed agent is preferably employed. The plasticizer may be a resin, mineral oil or otherwise. A detackifier may be employed such as grape seed oil or another slip agent. Antioxidants, pigments and micropsheres may be added to the material. The material has good cushioning properties.

Methods for treating a formation penetrated by a wellbore which improves fluid loss control during treatment. In some aspects, the treatments include preparing an aqueous fluid including one or more water inert degradable polymers and an optional viscosifier, injecting the aqueous fluid into the wellbore at a pressure equal to or greater than the formation's fracture initiation pressure, and thereafter injecting into the wellbore a proppant laden fluid at a pressure equal to or greater than the formation's fracture initiation pressure. The water inert degradable polymer may be a polymer such as an emulsion polymer or a latex polymer. Some methods of the invention use a fluid which may have a normalized leak off coefficient (C_w/sqrt(K)) equal to or less than about 0.0022, 0.0014, or 0.0010. A conventional fluid loss additive may or may not be used in conjunction with the treatment fluid and/or the proppant laden fluid. The water inert degradable polymer may or may not substantially enter formation pores. In another aspect, methods for reducing matrix damage to a formation during a treatment operation include preparing an aqueous treatment fluid formed of at least one water inert degradable polymer, and injecting the fluid at a pressure equal or greater than the formation's fracture initiation pressure.

Method and apparatus for coating fertilizer in pellet or other form to impart time-release characteristics and the resulting coated pellet product. The polyurethane coating encapsulates fertilizer particles, forming a hydrophobic coating for slow-release qualities. The urethane polymer coating is formulated with an isocyanate and a combined fluid of a polyether polyol, a methyl ester derivative of plant or vegetable oil, a T-12 curing catalyst, barium sulfate, and an oil-based dye. The barium sulfate imparts physical strength to and enhances color quality of the polyurethane coating, and acts as a detackifier and maintains temperature in the coating reactor. The inventive formulation is effective in the practical polymer coating of sulfate-based or other fertilizer pellets in an inventive time-release fertilizer product. An apparatus is provided for carrying out the coating process.

A thermoplastic elastomer (“TPE”) which is oxygen-permeable is provided with excellent barrier properties against oxygen by melt-blending with a liquid polyisobutene oil plasticizer in an amount insufficient to render the plasticized elastomer tacky. If made tacky, enough detackifier is used to allow the product to be formed into a removable seal. The TPE may be a conventional thermoplastic vulcanizate or a block copolymer of a vinylaromatic compound, typically styrene, and a conjugated diene, typically butadiene or isoprene, or mixtures thereof; the block may be a diblock, triblock or higher block, but the preferred polyblock copolymer is a triblock with styrene end-blocks and a butadiene/isoprene mid-block. Preferably the diene mid-block is hydrogenated to provide a poly(lower)monoolefin mid-block. When the TPE is a TPV, some or all of the mineral oil used to make the TPV processable may also be substituted with the polyisobutene plasticizer. The elastomeric product is particularly useful for sealing elements for containers in which foods, beverages and medical products must be preserved for a long period.

The invention relates to an aging-resistant EVA film adhesive for solar cell package and method for preparation, wherein the preparation constituents include ethane-vinyl acetate copolymer (EVA), cross-linking and curing agent, ultraviolet light absorbent, anti-oxidant, and hindered amine light-stability agent. The preparation comprises the steps of mixing homogeneously, blending extrusion, flow casting the extrudate, cooling down, drawing, and winding.

The present invention is directed to film coating systems for use on oral dosage forms such as compressed tablets and orally-ingestible substrates which have improved pearlescent qualities. The film coating systems can be applied either directly to a substrate or after the substrate has been coated with a subcoat. In preferred aspects, the pearlescent film coating is prepared as a dry powder mixture containing a cellulosic polymer, a detackifier, a gloss enhancer, and a pearlescent pigment. Film coating compositions containing an aqueous suspension of the powder mixtures, methods of applying the coatings to substrates and the coated substrates are also disclosed.

Paint detackifiers and/or sedimentation agents are provided which contain amorphous alumina and/or alumina in pseudoboehmite or boehmite form having an average crystallite size of from 0.1 to 15 nm and/or the hydrates and hydroxyalkylpolysaccharides thereof.

Disclosed is a method and gellable composition for decreasing the loss of fluid during well drilling or servicing operations. The gellable composition comprises a superabsorbent polymer in an acidic aqueous liquid in which the superabsorbent is not swellable. Preferably the gellable composition also contains a viscosifier, preferably chitosan. The method is practiced by forming the gellable composition, placing it at the location of fluid loss in a well, and mixing it with a basic aqueous liquid to raise the pH and thus allow the superabsorbent to expand in volume. Advantageously, the superabsorbent, chitosan, and an acid, preferably a solid acid, preferably sulfamic acid, are admixed to form an additive for preparing the gellable composition.

Polyurethane adhesive consists of polyurethane performed polymer 70-90wt% and anchoring agent 10-30wt% which contains hydroxyl group or epoxy group and is prepared by polymerizing at least two unsaturated monomers from free radical. At lest one monomer is polymerized unsaturated monomer containing hydroxyl group or epoxy group with hydroxyl group value:15.5-55, functionality:2-6; epoxy equivalent:1420-7000 and functionality:2-6. It achieves good viscidity and thermal stability, and better heat resistance. It can be used for composite plate, foam polypropylene and polyester plastic.

The invention discloses a bicomponent addition type room curing silicon rubber and a preparation method thereof. A component A of the room curing silicon rubber comprises the following components in part by weight: 30 to 60 parts of allyl-terminated organic polysiloxane of which the viscosity is 450 to 1,000 mPa.s, 15 to 30 parts of 400-1,000-mesh quartz powder, 23 to 35 parts of 600-1,200-mesh aluminum oxide, 0.1 to 5 parts of coloring agent, and 0.5 to 3 parts of platinum catalyst; a component B comprises the following components in part by weight: 30 to 55 parts of the allyl-terminated organic polysiloxane of which the viscosity is 450 to 1,000 mPa.s, 20 to 30 parts of the 400-1,000-mesh quartz powder, 18 to 30 parts of the 600-1,200-mesh aluminum oxide, 0.1 to 5 parts of inhibiting agent, 0.5 to 3 parts of hydrogen-containing silicone oil containing 0.17 to 1.2 parts of hydrogen, 0.5 to 6 parts of viscosity increaser, 0.3 to 1 part of anti-settling agent and the like. The prepared bicomponent addition type room curing silicon rubber has high heat conductivity and fluidity and can achieve cohesive failure by being bonded with metals such as aluminum, copper, stainless steel and the like and plastics such as PBT, ABS, PC, epoxy resin and the like, the bonding strength can be over 0.5 MPa, and the properties such as viscosity, hardness, density, strength, linear shrinkage and the like of a liquid silicon rubber are basically not influenced.

The invention belongs to a method for preparing release paper with concave-convex grooved texture. The formula of the release paper comprises 60 t0 85 weight parts of inorganic powder material, 10 to 40 weight parts of high polymer, 0.5 to 5 weight parts of antisticking agent, 0.3 to 3 weight parts of lubricating agent, 0.1 to 2 weight parts of foaming agent and 0.1 to 3 weight parts of activator. The preparation method comprises: stirring the inorganic powder material and the activator; adding the high polymer, the lubricating agent and the foaming agent and stirring; uniformly mixing, adding the antisticking agent, continuously stirring till the mixture is uniform, and obtaining a mixed material; and feeding the mixed material into paper film forming equipment to form paper films, and rolling the paper films with a circular shaft to obtain the release paper. When the method disclosed by the invention is adopted, the need of cutting trees is obviated; the cost is low; the need of film spraying and silicon applying is obviated in a production process; organic solvent is not used; the manufacturing process is simplified; and the energy consumption is low. The method has the characteristics of water resistance, dampness resistance and high strength, contributes to relief of environmental problems and is in accordance to environment-protection and energy-conservation requirements.

A wellbore fluid that includes an oleagninous continuous phase; a non-oleaginous phase; and a polymeric additive formed by reaction of at least one lipophilic epoxy modifier and at least one epoxide-reactive agent, wherein the at least one epoxide-reactive agent comprises at least one selected from lignins, tannins, biopolymers, starches, carboxy methyl cellulose, polyacrylates, polyacrylamides, and synthetic polymers is disclosed.

The invention discloses a flame-retardant self-adhesive coiled material, which has a three-layer composite structure and is characterized in that the middle layer is a glass fiber felt and both the upper and lower surfaces of the glass fiber felt are polymer modified asphalt layers into which a flame retardant and an adhesion promoter are added. The invention provides a formula and a process for preparing the flame-retardant self-adhesive polymer modified asphalt water-proof coiled material. The flame-retardant self-adhesive polymer modified asphalt is prepared by mixing the flame retardant, the adhesion promoter, polymer, asphalt and the like. The invention further provides a method for preparing the coiled material.

The invention discloses a non-cured rubber asphalt waterproof paint and a preparation method thereof. The preparation method comprises the following steps: 1) weighing a matrix asphalt, a softener, an elastic plastic body, an adhesion agent, a functional polymer, a stabilizing agent and a filling material; 2)injecting the matrix asphalt to a reaction vessel, heating the materials, stirring the materials, adding the softener, and stirring the materials; 3) adding the obtained mixture and the elastic plastic body in a colloid grinder, growing the materials, opening the colloid grinder, grinding the materials, and continuously growing the materials; 4) adding an adhesion agent and a functional polymer, continuously stirring the materials; 5) adding a filling material and stirring the materials; and 6) adding a stabilizing agent, and stirring the material. The paint has high heat resistance, good construction property, good thermostability, chemical stability and anti-ultraviolet aging capability, bond property is not influenced due to extraneous environment, the paint has construction property for a wet basic layer, can increase the interfacial affinity interaction with the wet basic layer, and construction quality and progress can be effectively guaranteed, and the paint is environmentally friendly.

Methods for inhibiting the depositions of organic contaminants from pulp in pulp and papermaking systems are disclosed. A combination of an enzyme and a nonionic polymeric detackifier are added to the pulp or applied to deposition-prone process equipment surfaces of a pulp and papermaking system.

The invention discloses a water-soluble plastic packing bag and a preparation method thereof. The water-soluble plastic packing bag comprises the following compositions: by weight, 30-40 parts of polyvinyl alcohol, 20-30 parts of starch, 10-20 parts of a plasticizer, 6-7 parts of zinc oxide, 1-2 parts of pine tar, 10-12 parts of allethrin, 4-10 parts of bis benzyl sulfide, 2-20 parts of salicylic acid, 1-10 parts of a surfactant , 5-20 parts of an antisticking agent, 6-13 parts of a penetrating agent, 2-10 parts of a pH regulator, and 5-15 parts of a preservative. The water-soluble plastic packing bag is degradable and environmentally safe, can be rapidly degraded in soil, does not affect the surrounding environment, has good heat resistance and no harm to packaged products, and can extend the life cycle of the products.