522 results about "Pressure sensitive" patented technology

The invention provides a force and acceleration composite sensor with a calibration function and a working method, and belongs to the field of composite sensors, the force and acceleration composite sensor with the calibration function comprises a test base, the test base is provided with a test through hole, and the test through hole is provided with a mounting hole; a pressure sensitive diaphragm II and a pressure monitoring core body are mounted in the mounting hole; an impact head limiting and fixing upper base is mounted on the test base, an impact head is mounted in a sliding through hole of the impact head limiting and fixing upper base, a first pressure sensitive diaphragm is arranged at the lower end of the impact head, and an acceleration monitoring core body is mounted at the lower end of the first pressure sensitive diaphragm; a third pressure sensitive diaphragm is installed at the bottom of the test through hole, a calibration base is arranged at the lower end of the test base, a calibration groove is formed in the calibration base, and a standard pressure sensor and a tested pressure sensor can be installed on the side wall of the calibration groove. The device has the beneficial effects that the device has multiple advantages of synchronous monitoring of force and acceleration, flexible impact resistance and integrated calibration.

The invention discloses a high-temperature-resistant high-stripping organic silicon pressure-sensitive adhesive and a preparation method thereof, and relates to a pressure-sensitive adhesive and a preparation method thereof. The invention aims to solve the problems of insufficient temperature resistance, low peel strength and poor binding force with a base material of the existing organic silicon pressure-sensitive adhesive. According to the invention, phenyl siloxane rubber, hydroxyl-terminated polysiloxane and methyl vinyl MQ silicon resin are used as basic raw materials, and polysilazane is used as a heat-resistant modifier to carry out heat-resistant modification on the chemical structure of the pressure-sensitive adhesive; a trifunctional allyl silane monomer is added in the film preparation process, so that the crosslinking density of the system is improved, and the heat resistance of the pressure-sensitive adhesive is further improved; the bonding force between the pressure-sensitive adhesive and a polyimide substrate is improved by adding the peroxysilane coupling agent, and the use of a primer in the coating process is omitted; by adding the hydroxyl MQ silicon resin and the phosphate adhesion promoter, the bonding strength of the pressure-sensitive adhesive is improved, and the high-temperature-resistant and high-stripping organic silicon pressure-sensitive adhesive is prepared. According to the invention, the high-temperature-resistant and high-stripping organic silicon pressure-sensitive adhesive can be obtained.

A manometric catheter probe includes a flexible printed circuit, one or more pressure sensor assemblies coupled to the flexible printed circuit along a length of the flexible printed circuit, and a first flexible sleeve. Each pressure sensor assembly includes a body. The body includes a central cavity configured to receive the flexible printed circuit and an annular recess of the body. Each pressure sensor assembly further includes a microelectromechanical systems (MEMS) sensor disposed in the annular recess, an electrical connector configured to electrically couple the MEMS sensor and the flexible printed circuit, and a first flexible sleeve disposed over the annular recess of the body. The first flexible sleeve includes a fluid configured to communicate pressure to the MEMS sensor, and a second sleeve is disposed over the pressure sensor assembly.

Article comprising, in order: a first polymeric film having first and second, opposed major surfaces; a first primer layer having first and second opposed, major surfaces on the first major surface of the first polymeric film, wherein for a distance of at least 25 nm starting from the first major surface of the first 5 primer layer toward the second major surface of the first primer layer there is an average Si content, on a theoretical elemental basis, not greater than 15 atomic percent; and a first release layer having first and second opposed, major surfaces, wherein the second major surface of the first release layer is in direct contact with the first major surface of the first primer layer, wherein the first release layer comprises, on a theoretical elemental basis, Si. Articles described herein are useful, for example, as a release liner for 10 casting pressure sensitive adhesives thereon.

The invention relates to a method for manufacturing a wash-off label (2) comprising a face (1) and a pressure sensitive adhesive layer (4), wherein the face (1) comprises a thermoplastic film, and the method comprises applying an acrylic adhesive onto a first surface of the face (1), wherein the acrylic adhesive comprises a wash-off additive, the wash-off additive comprising are sinous material, and a grafted rosin ester which is a rosin ester grafted with a capped polyalkylene glycol, wherein the capped polyalkylene glycol is apolyalky lene glycol end-capped by an alkyl ether, and drying the acrylic adhesive in order to form an acrylic pressure sensitive adhesive onto the first surface of the face (1), thereby obtaining the wash-off label (2). The invention further relates to a wash-off label.

The invention discloses an acrylic pressure-sensitive adhesive with heating tackifying and UV visbreaking functions as well as a preparation method and application thereof. The pressure-sensitive adhesive is prepared from the following raw materials: acrylate resin, epoxy resin, a cationic thermal curing agent, a cationic UV curing agent, a UV monomer, a photoinitiator and a cross-linking agent. Certain viscidity is achieved initially, and reworking positioning can be achieved; after heating, the cationic thermal curing agent initiates ring-opening crosslinking of the epoxy resin to form a strong hydrogen bond with the base material, so that the bonding strength is remarkably improved; after processing is completed, through UV irradiation, the cationic UV curing agent and the photoinitiator are synchronously activated, excessive crosslinking embrittlement of the epoxy resin and polymerization shrinkage of the UV monomer are initiated respectively, a bonding interface is destroyed synergistically, and rapid reduction of viscosity and stripping without residual glue are achieved. The method effectively solves the problem that high-strength temporary fixing and lossless stripping are difficult to consider in precision machining, and is particularly suitable for grinding and cutting processes in the fields of semiconductor chips, display devices and the like.

The application discloses a stretchable pressure sensitive material, which comprises an elastomer and a conductive filler, the elastomer is provided with an array of vertical holes, the conductive filler is filled in the array of vertical holes, and the cross-sectional shape of the elastomer is selected from one of a trapezoidal shape, a rectangular shape and a trapezoidal-like shape; and the application further provides a preparation method and application of the stretchable pressure sensitive material; compared with the prior art, the stretchable pressure sensitive material is made of the elastomer and the conductive filler, the sensor can realize a 50% tensile strain due to the fact that the elastomer and the conductive filler are both based on stretchable elastic materials; the conductive filler / hole is designed into a unique three-dimensional structure, and the hardness of the conductive filler is higher than that of the porous array elastomer; therefore, the stretchable pressure sensitive material has high stability of resistance under the condition of stretching, and the resistance change is less than 0.5% under a 20% tensile strain.

The invention relates to the technical field of pressure-sensitive adhesives, in particular to an impact-resistant substrate-adhesive-free protective adhesive tape and a preparation method thereof. The adhesive comprises a mixed solvent, a hard monomer, a soft monomer, a functional monomer, an initiator, tackifying resin and a curing agent, and the mass ratio of the hard monomer to the soft monomer is 4: 6; the adhesive tape prepared by the invention has better anti-buffering and energy-absorbing effects, also has certain flexibility, namely compression performance, and cannot cause physical damage to a used part due to over-rigidity of the adhesive tape so as to face large-amplitude impact influence or small-amplitude long-time impact influence in a use scene.

Silicone elastomeric attachment strips useful in structural glazing applications and a two-part condensation curable silicone composition from which they are cured. More particularly, this disclosure relates to a silicone elastomeric attachment strip comprising a silicone elastomeric material that is designed to bond glazing units to structural elements in e.g., curtain wall applications, which strips do not contain a pressure sensitive adhesive. The silicone elastomeric attachment strips are prepared by curing the two-part condensation curable silicone composition which contains a silicone and titanium-based reaction product as a catalyst. A method of utilising same in said insulating glazing and curtain wall applications is also provided.

The invention belongs to the technical field of pressure-sensitive adhesives, and discloses a light / heat dual-curing acrylate pressure-sensitive adhesive and a preparation method thereof. The light / heat dual-curing acrylate pressure-sensitive adhesive is prepared from the following components in parts by weight: 10.8 to 20.8 parts of a hard monomer, 76 to 85 parts of a soft monomer and a diluent, 2.2 to 4.2 parts of a functional monomer, 1 to 2.1 parts of a photoinitiator, and 1.1 to 1.5 parts of a modified isophorone diisocyanate cross-linking agent and a trifunctional group cross-linking agent. The method comprises the following steps: carrying out photopolymerization on a hard monomer, a soft monomer, a diluent, a functional monomer and a part of photoinitiator to obtain a prepolymer; uniformly mixing the prepolymer, the modified isophorone diisocyanate cross-linking agent, the three-functional-group cross-linking agent and the remaining photoinitiator, coating, carrying out light curing, and carrying out heat curing, so as to obtain the pressure-sensitive adhesive. The pressure-sensitive adhesive provided by the invention has excellent comprehensive performance, and effectively solves the problems of easy migration, low curing rate, and poor aging resistance and temperature resistance of a traditional pressure-sensitive adhesive cross-linking agent.

A pressure-sensitive adhesive may comprise: about 18 wt % to about 90 wt % of a propylene-ethylene(-diene) (PE(D)M) copolymer; about 10 wt % to about 65 wt % of a tackifier; and 0 wt % to about 40 wt % of an oil. The PE(D)M copolymer may comprise: (a) about 60 wt % to about 99 wt % propylene, (b) about 1 wt % to about 40 wt % ethylene or a C4 to C22 alpha-olefin, and (c) 0 wt % to about 20 wt % diene, wherein the PE(D)M copolymer has a heat of fusion of about 15 J / g or less.

The invention discloses a peelable clothing plate-making composite material and a preparation method thereof, and relates to the technical field of clothing manufacturing and design, in particular to a peelable clothing plate-making composite material and a preparation method thereof, and the peelable clothing plate-making composite material comprises a cloth layer, an adhesive layer, a paper layer and a release coating. The cloth layer is preferably 120 gsm cotton grey cloth, and the paper layer is 60-90 gsm printing paper. The adhesive tape is characterized in that the adhesive layer is an acrylic hot-melt pressure-sensitive adhesive with low-viscosity peelable characteristics, and is coated in a dot-shaped or grid-shaped form so as to provide an easy-to-peel starting edge. The preparation method comprises the following steps: coating the adhesive layer on one layer of base material, compounding with the other layer, and applying the release coating on the upper end of the paper layer. The structure ensures that the composite material is easy to cut in the clothing pattern making process, no adhesive residue exists after stripping, and the requirements of fashion pattern making for strength, operation convenience and modifiability are met.

The invention relates to a hydrophilic acrylic pressure-sensitive adhesive. The pressure-sensitive adhesive comprises an acrylic copolymer, polyvinyl alcohol or a derivative thereof, a non-reactive surfactant and a neutralizer according to the solid content of an emulsion, the acrylic copolymer is obtained by copolymerization of n-butyl acrylate, 2-ethylhexyl acrylate, 2-hydroxyethyl acrylate, acrylic acid, methyl methacrylate and a boric acid functional monomer emulsion containing a 2, 1-benzoxaborazole group. The preparation method comprises the following steps: dropwise adding a pre-emulsion, lagging dropwise adding an initiator and carrying out thermal-insulation polymerization to obtain a copolymer emulsion, adding polyvinyl alcohol or a derivative thereof at a specific temperature, neutralizing to a specified pH value, and carrying out segmented drying to form the film. The hydrophilic acrylic pressure-sensitive adhesive disclosed by the invention has both hydrophilicity and wet stability while keeping the adhesion performance.

The present invention relates to a curable composition comprising an oligomer and a low viscosity reactive diluent. The oligomer comprises polymerized high Tg monomer units, polymerized low Tg monomer units, polymerized chromophore monomer units, and optionally at least one polymerized additional monomer unit. The invention also relates to use of the curable composition as a pressure sensitive adhesive curable composition and methods of coating a substrate.

The invention discloses an integrated double-hole friction stress sensor based on pressure gradient detection, and belongs to the field of friction sensors. The sensor adopts flow field surface pressure to detect the magnitude of friction stress, and a friction pressure sensitive module, a pressure detection module and a friction calculation module are integrated in the sensor. When the pressure sensing double-hole structure is subjected to an incoming flow effect, the wall surface has a pressure gradient due to friction resistance, the differential pressure is amplified through the double-hole structure, the differential pressure and the static pressure are detected through the high-precision differential pressure sensitive core body and the high-precision absolute pressure sensitive core body, and then the friction resistance stress is solved. The sensitive core body adopts an integrated packaging scheme, and a double-hole sensitive structure, a pressure cavity, an absolute pressure sensitive core body, a differential pressure sensitive core body and a detection circuit module can be integrally packaged in a single tube shell, so that application under a high static pressure background is realized. The friction resistance stress sensor is excellent in performance, compact in structure, high in robustness and capable of achieving friction resistance stress detection of the hypersonic flight vehicle under the extreme working condition.

A biodegradable pressure sensitive adhesive includes:% (Parts)Water:15-37Defoamer:.000-1.0 Sodium Chloride (NaCl):.000-15.0Gelatin:14-26Glycerin / UREA: 6-18Vanilla Extract:.000-.700Sugar / Corn Syrup:22-42Preservative:.000-.7 TOTAL:100.00%and more particularly:% (Parts)Water:15-30Defoamer: .3-1.0Sodium Chloride (NaCl):  9-15.0Gelatin:15-26Glycerin: 6-16Vanilla Extract:.000-.250Sugar / Corn Syrup:24-40Preservative:.2-.6TOTAL:100.00%.

A linerless wash-off label (100) comprising a paper-based face (101, 201) and pressure sensitive adhesive (102) is provided. The paper-based face (101, 201) comprises a base paper (206) and a release layer (203), and the release layer (203) and the pressure sensitive adhesive (102) are arranged on opposite sides of the base paper (206). The pressure sensitive adhesive (102) comprises a water-based acrylic emulsion polymer composition, the pressure sensitive adhesive (102) is sensitive to washing conditions, and the base paper (206) comprises wet strength resin and has water absorptiveness of from 10 to 30 g / m2 when measured according to an ISO standard 535 (contact time 60 s). Further, a label product roll comprising the linerless wash-off labels (100) as well as a labelled item comprising an item and a linerless wash-off (100) label are provided. Still further, use of the linerless wash-off label (100) and method of manufacturing a linerless wash-off label web for providing the linerless label product roll are provided.

[Problem] To provide a curable silicone composition for use in a release agent with which it is possible to form a release film that has low peel force from a silicone adhesive agent, particularly a silicone adhesive agent having a low storage elastic modulus at low temperature, even when in the form of a thin layer. Additionally, to provide a release film that has low peel force and that yields exceptional smoothness on the surface of an adhesive agent layer after release, a laminate, and a method for manufacturing the laminate. [Solution] Provided are: a curable silicone composition containing (A) a mixture of (A1) a fluoro(poly)ether-modified organopolysiloxane having alkenyl groups and (A2) a fluoroalkyl-group-containingorganopolysiloxane having alkenyl groups, (B) an organohydrogen polysiloxane, (C) an organopolysiloxane that has fluorine-atom-containing organic groups and that does not have any hydrosilylation-reactive groups, (D) a hydrosilylation reaction catalyst, and (E) an organic solvent; and a use for a release film, etc., that comprises a cured product of the curable silicone composition.

The present invention relates to an optically transparent pressure sensitive adhesive having a dynamic shear strength of at least 1 MPa as measured according to ASTM D1002 and having a delta b value of less than 2 as measured according to EN ISO 11664 or a yellowing index of less than or equal to 1.5 as measured according to ASTM E313 after storage at 105 DEG C for 1000 hours. The invention further relates to an adhesive sheet comprising the optically transparent pressure-sensitive adhesive and to the use of the optically transparent pressure-sensitive adhesive or of the adhesive sheet for bonding two substrates.

The utility model discloses a safe type pressure sensitive resistance relates to resistance technical field, including the package shell, the package shell inside is provided with auxiliary mechanism, the auxiliary mechanism includes insulating foam layer, warning strip and elastic diaphragm, in the utility model, elastic diaphragm one side is fixedly connected with insulating foam layer, microswitch one side is fixedly connected with the package shell, and the elastic diaphragm is deformed after being extruded by grain boundary assembly expansion, and insulating foam layer exerts force on trigger strip after being stressed, triggers microswitch, and the circuit can be cut off by microswitch, and warning strip extends through -hole, and the mechanical early warning of aging sign is carried out, and it is convenient for staff to check in time, and the maintenance difficulty of reducing subsequently, and the one side of spacing piece is inserted with the support block, can be positioned to the installation of support block, and the installation and fixation of package shell bottom can be assisted by support block and fixed block, reduce the looseness after pin insertion, guarantee the stability when installing package shell.

The invention relates to the technical field of high polymer materials, in particular to an acrylate pressure-sensitive adhesive as well as a preparation method and application thereof. The water-based acrylate pressure-sensitive adhesive is prepared from the following raw materials in parts by weight: 60 to 85 parts of soft monomer, 10 to 30 parts of hard monomer, 3 to 8 parts of functional monomer, 0.5 to 3 parts of cross-linking monomer, 1 to 4 parts of reactive emulsifier, 0.2 to 0.8 part of initiator, 0.5 to 2 parts of first cross-linking agent (adipic dihydrazide), 0.5 to 2.5 parts of second cross-linking agent (polyvalent metal ion cross-linking agent) and 90 to 120 parts of water, the functional monomer comprises a strong polar monomer containing carboxyl and / or sulfonic acid group; by introducing the strong polar monomer, adipic acid dihydrazide and the multivalent metal ion cross-linking agent, a'covalent-ionic 'double-cross-linked network is constructed, so that the prepared pressure-sensitive adhesive has low sensitization, high cohesion, excellent skin grease pollution resistance and repeated adhesion.

The utility model discloses a surface mount type pressure sensitive resistance relates to resistance technical field, including resistance main part, the outside sleeve of resistance main part is connected with the packaging film, one side fixedly connected with the installation groove of packaging film, the inside fixedly bonded with the paste ring of installation groove, the other side fixedly bonded with the isolation ring of paste ring, the shape of paste ring and isolation ring is circular ring, the other side swing joint of packaging film has the pressing block. The utility model discloses through paste installation mode and installs pressure sensitive resistance, can significantly reduce the installation space occupancy, effectively reduces the risk of the physical interference with the surrounding components, guarantees the convenience of installation process and the connection reliability simultaneously.

The application belongs to the technical field of adhesives, and particularly relates to a rubber type removable pressure sensitive adhesive and a preparation method thereof. The application provides a rubber type removable pressure sensitive adhesive, and preparation raw materials include, by weight, 100 parts of styrene-isoprene-styrene block copolymer, 100-150 parts of tackifying resin, 30-70 parts of softening agent, 0.2-1.5 parts of main antioxidant and 0.2-1.5 parts of auxiliary antioxidant. The unique formula design of the application enables the adhesive to have excellent instantaneous adhesion and sufficient cohesion. The pressure sensitive adhesive of the application benefits from balanced viscoelasticity, and the adhesive can be separated in a clean interface during peeling, without any residue on the surface of the adherend (such as glass, ceramic tile and wooden paint surface) and without damaging the base material. By using hydrogenated resin and a composite antioxidant system, oxidative degradation is fundamentally inhibited, the product is not prone to yellowing, brittle and oiling during long-term use, and has a long service life.

A composition comprising a silicone pressure sensitive adhesive and an amine functional drug, wherein the amine functional drug is dispersed in the silicone pressure sensitive adhesive.

The present invention relates to a self-adhesive article (1) comprising a substrate layer (2) and an adhesive layer (3) of at least partially cured acrylic pressure sensitive adhesive obtained by subjecting a radiation-curable adhesive composition to irradiation characterized by a wavelength of 375-500 nm, preferably 385-475 nm, wherein the radiation-curable adhesive composition comprises: a) at least one acrylic compound A, b) at least one photoinitiator PI, c) optionally at least one synergist S for the photoinitiator PI, and d) optionally at least one vinyl compound VC.

The invention belongs to the technical field of pressure-sensitive adhesives, and particularly relates to a pressure-sensitive adhesive and a pressure-sensitive adhesive tape. According to the pressure-sensitive adhesive disclosed by the invention, the requirements of high adhesive force, high cohesion and low modulus of a double-sided adhesive tape layer are comprehensively considered, the polymerization ratio of butyl acrylate to 2-ethylhexyl acrylate to acrylic acid to hydroxyl-containing acrylate is ingeniously regulated and controlled, the weight-average molecular weight Mw is controlled to be 600000-900000 g / mol, polyacrylate resin is prepared, then proper tackifying resin is screened and matched, and the pressure-sensitive adhesive is prepared. The pressure-sensitive adhesive with excellent comprehensive performance can be obtained, and the required anti-falling performance can be met; the polyacrylate resin is obtained through solution method thermal polymerization, the synthesis process is simple and stable, and the technological process is more stable and reliable; the pressure-sensitive adhesive has lower energy storage modulus at normal temperature, is relatively soft, and has higher stress dispersion capacity when subjected to stress impact; the pressure-sensitive adhesive tape has excellent initial adhesion and adhesive force, the storage modulus in a high-temperature region is not rapidly attenuated, and the pressure-sensitive adhesive tape still has excellent mirror steel plate retention at 85 DEG C.

A solventless pressure sensitive adhesive may include a silicone-based diluent component, an MQ resin component, a vinyl silicone component, and a crosslinker component. The silicone-based diluent component content may be at least about 0.1 wt. % and not greater than about 14 wt. % for a total weight of the solventless pressure sensitive adhesive, the MQ resin component content may be at least about 30 wt. % and not greater than about 65 wt. % for a total weight of the solventless pressure sensitive adhesive, the vinyl silicone component content may be at least about 27 wt. % and not greater than about 62 wt. % for a total weight of the solventless pressure sensitive adhesive, and the crosslinker component content may be at least about 0.5 wt. % and not greater than about 8.0 wt. % for a total weight of the solventless pressure sensitive adhesive.

The invention relates to the technical field of pressure-sensitive adhesives, in particular to a high-adhesion high-temperature-resistant copper foil single-sided adhesive and a preparation method thereof. Comprising a copper foil and a pressure-sensitive adhesive which are laminated, the thickness of the copper foil is 12-30 [mu] m, the thickness of the pressure-sensitive adhesive is 10-30 [mu] m, the normal-temperature storage modulus is 200000-270000 Pa, the pressure-sensitive adhesive comprises an acrylate polymer and a terpene polymer, the acid value of the acrylate polymer is 16-22 mgKOH / g when the solid content is 21%, the normal-temperature storage modulus is 150000-180000 Pa, the acid value of the terpene polymer is 60-120 mgKOH / g, the softening point is 120-140 DEG C, and the temperature of the terpene polymer is 20-30 DEG C. The terpene polymer is obtained by free radical polymerization of a terpene monomer, a hard segment monomer and an acidic monomer under the action of an initiator. The copper foil single-sided adhesive prepared by the preparation method disclosed by the invention is thin in thickness and low in cost, and has excellent adhesion and warping resistance to foam.

The utility model discloses a pin welding device for a piezoresistor, which relates to the technical field of piezoresistor welding and comprises a workbench, a spot welding machine arranged on the workbench, a welding head arranged on the spot welding machine, a flue gas purification mechanism arranged on the welding head, a rotating disc rotationally arranged above the workbench, a strip-shaped seat fixedly mounted on the rotating disc, a fixing mechanism is arranged on the strip-shaped seat in a sliding mode, a U-shaped abutting sleeve adjusting mechanism is arranged on the strip-shaped seat and the fixing mechanism, a welding position adjusting mechanism is arranged on the workbench and the rotating disc, and a wire harness supporting piece and an illuminating lamp are fixedly installed on the workbench. According to the utility model, through the arrangement of the rotating disc, the welding position adjusting mechanism, the fixing mechanism, the flue gas purifying mechanism and the like, circuit boards with different sizes can be clamped and fixed when the piezoresistor is welded, and the position of the circuit board can be adjusted according to requirements, so that the welding of the piezoresistor is facilitated, and white smoke generated by welding is absorbed and purified.