75results about "Latex adhesives" patented technology

A method for laminating a film on to an optical article and a bi-layer adhesive for use in the method. The bi-layer adhesive includes a latex adhesive layer and an HMA layer sequentially disposed on the film and dried to form a solid layer of uniform thinness throughout to provide optical quality. Various types of films may be employed to provide an optical function. Following optional pre-treatment steps, the adhesives are coated on to the film. An optical hot press technique is used to deliver heat and pressure over a short period of time to form a functionally-enhanced optical article with high adhesive strength.

Provided is a laminated body which solves, all at once, the issues of conventional methods, such as adhesiveness to a board having low surface roughness, stress concentration relaxing, reliability improvement, high adhesiveness (especially, that of a conductor layer), heat resistance, almighty characteristics (being adherable irrespective of the type of an adhesive), in manufacture of laminated bodies. The laminated body is formed by having an entropically elastic molecular adhesive layer between two boards, and the entropically elastic molecular adhesive layer is composed of an entropically elastic material layer, and a layer of a molecular adhesive having a group which can be bonded to the entropically elastic material layer.

An aqueous adhesive composition includes: a phenol / aldehyde resin; and an unsaturated elastomer latex. The phenol / aldehyde resin is based on: an aromatic polyaldehyde bearing at least two aldehyde functional groups and including at least one aromatic nucleus; and a polyphenol including at least one aromatic nucleus. If there is just one aromatic nucleus, the nucleus bears two or three hydroxyl functional groups in a meta position with respect to each other or with respect to one another, with a remainder of the nucleus being unsubstituted. If there are plural aromatic nuclei, at least two of the nuclei each bear two or three hydroxyl functional groups in the meta position with respect to each other or with respect to one another, with two positions ortho to at least one of these hydroxyl functional groups being unsubstituted. The adhesive composition is useable to adhere a textile material to a crosslinkable rubber composition.

This invention relates to improved adhesion compositions and textile materials and articles treated therewith. The improved adhesion composition comprises a non-crosslinked resorcinol-formaldehyde and / or resorcinol-furfural condensate (or a phenol-formaldehyde condensate that is soluble in water), a rubber latex, and an aldehyde component such as 2-furfuraldehyde. The composition may be applied to textile substrates and used for improving the adhesion between the treated textile substrates and rubber materials. End-use articles that contain the treated textile-rubber composite include, without limitation, automobile tires, belts, and hoses as well as printing blankets.

The present invention provides an aqueous-dispersion-type pressure-sensitive adhesive composition and a pressure-sensitive adhesive sheet formed thereof. This composition comprises a rubber latex, a tackifier resin emulsion, a dispersant composed primarily of a polycarboxylic acid (salt) having a hydrophobic side chain, and an emulsifier composed primarily of a polyoxyethylene alkyl ether sulfuric acid ester having an average polymerization degree of 16 to 80. A preferred dispersant contains carboxyl group at 2 to 6 mmol / g and an aqueous solution thereof at 1% by mass has a surface tension of 25 to 45 mN / m.

An aqueous adhesive composition comprising a polychloroprene emulsion; an adhesion promoting agent that promotes adhesion to polyolefin substrates; a polyurethane polymer dispersion; an aqueous tackifying resin dispersion; and a rubber latex dispersion. A multi-layer composite and methods for adhering a thermoplastic material to a rigid substrate using the aqueous adhesive composition also are described.

An aqueous adhesive composition includes: a phenol / aldehyde resin; and an unsaturated elastomer latex. The phenol / aldehyde resin is based on at least: an aromatic polyaldehyde bearing at least two aldehyde functional groups and including at least one aromatic nucleus; and phloroglucinol. The adhesive composition is useable to make a textile material adhere to a crosslinkable rubber composition, and may be used as an advantageous alternative to a formaldehyde-based RFL adhesive.

A sealant composition is provided; the sealant composition comprises latex emulsion, nanoporous particles, surfactant, anti-freezing agent, wetting agent, and water. The sealant composition of the present application achieves a good sealing performance for the puncture of the tire. Furthermore, the sealant composition is easy to use and non-perishable, and has a long shelf life, which endows the sealant composition with a good market prospect.

The present invention provides a waterbased self seal adhesive system utilizing, a self seal adhesive containing no natural rubber. The self seal adhesive system is comprised of a transfer adhesive disposed on a transfer web and an anchor adhesive disposed on an anchor web with the two adhesives forming the seal for the package. The self seal adhesives bond to themselves when pressure is applied to close or seal the packaging material. When peeled apart, the adhesive splits, adhesively fails from either or both the front web or the back web, or destroys one or both of the substrates of the package. Primer coatings may also be used to enhance performance of the self seal adhesive.

A method for laminating a film on to an optical article and a bi-layer adhesive for use in the method. The bi-layer adhesive includes a latex adhesive layer or a specific silane adhesive and an HMA layer sequentially disposed on the film and dried to form a solid layer of uniform thinness throughout to provide optical quality. Various types of films may be employed to provide an optical function. Following optional pre-treatment steps, the adhesives are coated on to the film. An optical hot press technique is used to deliver heat and pressure over a short period of time to form a functionally-enhanced optical article with high adhesive strength.

This invention relates to an adhesive composition comprising: an elastomeric latex; a phenol, an aldehyde and an alkylated melamine-formaldehyde resin suitable for use in the adhesion of textile material to rubber. This invention also relates to a method of promoting the adhesion of a textile material to rubber comprising the step of contacting the textile material with an adhesive composition comprising an elastomeric latex; a phenol; an aldehyde; and an alkylated melamine-formaldehyde resin. The adhesive composition of this invention provides equal or better retention of adhesive strength after heat aging.

Provided is a water-dispersed pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive that exhibits good adhesiveness to a non-polar adherend and maintains its properties at a low temperature. The water-dispersed pressure-sensitive adhesive composition according to the present invention comprises a (meth)acrylic polymer obtained by polymerizing a monomer composition containing as a primary component an alkyl (meth)acrylate having an alkyl group with 1 to 18 carbon atoms, a latex containing a rubber component that is immiscible with the (meth)acrylic polymer and has a loss tangent peak temperature of −5° C. or below when determined by a dynamic viscoelastic measurement in which shear strain is applied at a frequency of 1 Hz, and a tackifier that is miscible with the rubber component, but immiscible with the (meth)acrylic polymer.

The invention discloses a double-veneer flooring comprising, by mass, 20-70 parts of white latex, 20-70 parts of urea-formaldehyde glue, 10-50 parts of flour, 1-5 parts of ammonium chloride, and 1-5 parts of melamine. According to the invention, processed solid wood flooring has excellent seismic and silencing functions. Floor is effectively protected, and noise is greatly reduced. With the process provided by the invention, the flooring also has flame-retardant and antibacterial functions. The fire prevention performance is greatly improved, and sterilization and deodorization functions are provided, such that human bodies are prevented from bacteria nuisance.

The invention relates to a thermoplastic health elastic material and a processing method thereof. The elastic material is composed of five layers of structures. The first layer is a reinforced shaping layer, the second layer is an anion bonding layer, the third layer is a far infrared emission layer, the fourth layer is an anion bonding layer, and the fifth layer is a reinforced shaping layer. The reinforced shaping layer is a polyester velvet warp knitted mesh cloth layer. The anion bonding layer is processed from the following raw materials by weight: 20-40 parts of TPU, 10-15 parts of diatom mud, 12-20 parts of carbon fiber powder, 5-8 parts of PETG, 3-5 parts of EVA, 5-10 parts of PET, 30-50 parts of latex, 3-7 parts of anion powder, 3-5 parts of far infrared ceramic powder, and 5-8 parts of magnetic ordered mesoporous carbon. The thermoplastic health elastic material provided by the invention has a five-layer structure, wherein the middle far infrared emission layer is a health base layer, can accept the human body heat at 25DEG C-37DEG C to emit 4micrometer-14micrometer far infrared wave beneficial to the human body, and the far infrared wave can activate human body moisture, promote metabolism and increase cell vitality through human body sole acupoints.

The invention provides a high-strength glue, which belongs to the technical field of a novel material. The glue is composed of 15% of bone glue, 15% of pectin, 15% of latex, 5% of a viscidity enhancer, 5% of an emulsifier, 3% of formaldehyde, 2% of fragrance and 40% of water through mixing. The glue has the advantages of being environment-friendly and healthy, the glue does not cause skin irritation, and the viscidity is extremely high.

A method for producing starch-based compositions, and the composition produced therewith, for use as latex substitutes for full or partial latex replacement in applications such as carpet backing.

The invention provides a sweetened tipping paper and a preparation method thereof, which are used in cigarette filters. The cigarette filter includes a filter tow rod, including an outer layer of forming paper, and both ends of the filter tow rod are filled with cellulose acetate tow, cellulose acetate tow The bundle is bonded with the outer layer of forming paper through an adhesive, and the adhesive includes a modifier and a water-based glue, and the modifier includes a sweetener, glucono-δ-lactone, and chitin-chitosan emulsion. The invention can increase the sweetness of the smoke, improve the softness of the smoke and improve the aftertaste. Only a small amount can be added to achieve a more obvious effect of enhancing the sweetness of the cigarette, and the material can be directly sprayed on the tow to prepare a cigarette tip stick, without Participating in the combustion, avoiding the uncoordinated miscellaneous gas produced by the original aroma of the tobacco due to the material itself participating in the combustion of the cigarette. Simultaneously, the raw material cost of the present invention is low, and the preparation process is simple and easy, and its application in the cigarette industry production process is mature, and has wide application prospects in the tobacco industry.

Compositions comprising sulfur-containing polymers such as polythioethers and polysulfides, polyepoxides, and controlled-release amine catalysts useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life and the rate of curing can be tailored for specific applications.

A water-based cement for producing tyres includes 5 to 80% by weight of water, 10 to 60% by weight of a cross-linkable unsaturated-chain polymer base, 1 to 15% by weight of emulsifiers, and a quantity of metal oxide depending on the desired degree of adhesion.

Provided is a water-dispersed pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive that exhibits good adhesiveness to a non-polar adherend and maintains its properties at a low temperature. The water-dispersed pressure-sensitive adhesive composition according to the present invention comprises a (meth)acrylic polymer obtained by polymerizing a monomer composition containing as a primary component an alkyl (meth)acrylate having an alkyl group with 1 to 18 carbon atoms, a latex containing a rubber component that is immiscible with the (meth)acrylic polymer and has a loss tangent peak temperature of −5° C. or below when determined by a dynamic viscoelastic measurement in which shear strain is applied at a frequency of 1 Hz, and a tackifier that is miscible with the rubber component, but immiscible with the (meth)acrylic polymer.

The invention discloses active curing glue which comprises water, polyvinyl alcohol, white emulsion, sodium stearate, and talcum powder, and is characterized in that the curing glue also comprises an active curing agent. The active curing glue of the invention has good viscosity, can be applied in various different ways such as pouring, smearing, and the like, has low requirements for application space, can be used at narrow places or gaps, can maintain stability when not used, and has no leakage or spilling phenomena.

A method of producing impermeable rubber layers, the method including: - a step of preparing a water-based emulsion having at least a cross-linkable polymer base, and a surface-active agent of molecular formula (I) (R1CONR2CHR3-COO-)nXn+ where: R1 is an aliphatic group C6-C23, R2 is H or an aliphatic group C1-C8, R3 is H or an aliphatic or aromatic group C1-C8, Xn+ is a metal cation, preferably an alkaline cation, and n is an integer of 1 to 3; and - a step of depositing the water-based emulsion on a surface.

The invention discloses a building adhesive. The building adhesive is prepared from cassava starch of 40 to 50kg, polyvinyl alcohol of 5 to 10kg, cellulose and derivatives thereof of 15 to 20kg, re-dispersible latex powder of 1 to 5kg and a thickener of 0.5 to 2.0kg. The thickener is polyacrylamide. The building adhesive provided by the invention has the advantages of high viscosity, good crack resistance, acid and alkali resistance, good environment protection performance, good mildew-proof and antibacterial performance, simple manufacturing process, low production cost and wide application range, and does not contain any material harmful to a human body, such as benzene, formaldehyde and the like.