144 results about "Gel free" patented technology

In a buffer tube arrangement, discrete domains of adhesive material provide adhesive coupling of a water-swellable element and an optical fiber bundle that includes a plurality of optical fibers.

Kits and compositions for producing an alginate gel are disclosed. The kits and compositions comprise soluble alginate and insoluble alginate / gelling ion particles. Methods for dispensing a self-gelling alginate dispersion are disclosed. The methods comprise forming a dispersion of insoluble alginate / gelling ion particles in a solution containing soluble alginate, and dispensing the dispersion whereby the dispersion forms an alginate gel matrix. The methods may include dispensing the dispersion into the body of an individual. An alginate gel having a thickness of greater than 5 mm and a homogenous alginate matrix network and homogenous alginate gels free of one or more of: sulfates citrates, phosphates, lactatates, EDTA or lipids are disclosed. Implantable devices comprising a homogenous alginate gel coating are disclosed. Methods of improving the viability of pancreatic islets, or other cellular aggregates or tissue, following isolation and during storage and transport are disclosed.

A multifunctional polymer nano-composite sensor system for detecting various biosignals like ECG and other kinds of signals for sensing strain, temperature and moisture has been disclosed. This sensor system includes (1) a polymer nano-composite sensor material that is flexible, elastic, soft, and conductive, (2) a sensor material fabricated into a desired shape or form, and (3) a signal capturing interface for collecting, transmitting and processing the signals. This sensor system can easily be integrated into a user environment for various user-transparent sensing applications. The present invention more specifically reveals a multi-functional nano-composite sensor for detecting biologically generated electrical signals which is comprised of a polymeric composition having an electrically conductive wire embedded therein, wherein the polymeric composition has a dispersion phase and a dispersed phase, wherein the dispersion phase is comprised of a thermoplastic polymer or a thermoset polymer, wherein the dispersed phase includes an electrically conductive filler, wherein the polymeric composition is gel-free, and wherein the electrically conductive wire is adapted for conveying an electrical signal to a signal processing device. The present invention further discloses a polymeric composition which is comprised of a thermoplastic polyurethane, a styrenic polymer, and at least one electrically conductive filler wherein the styrenic polymer is present in the composition at a level which is within the range of 10 weight percent to 50 weight percent and wherein the electrically conductive filler is present at a level which is within the range of 0.5 weight percent to 40 weight percent, based on the total weight of the polymeric composition.

The invention discloses a non-adhesive polyethylene protective film and a preparation method thereof. The non-adhesive polyethylene protective film comprises a base film layer, an intermediate layer and a self-adhesive layer, wherein the base film layer comprises the following components in percentage by weight: 25 percent to 60 percent of low-density polyethylene, 40 percent of 75 percent of linear low-density polyethylene and 1 percent to 10 percent of metallocene linear low-density polyethylene. The intermediate layer comprises the following components in percentage by weight: 30 percent to 60 percent of low-density polyethylene, 40 percent to 70 percent of linear low-density polyethylene and 10 percent to 30 percent of ethylene-vinylacetate copolymer. The self-adhesive layer comprises the following components in percentage by weight: 5 percent to 15 percent of low-density polyethylene, 5 percent to 20 percent of linear low-density polyethylene and 80 percent to 90 percent of polyacrylate hot-melt pressure sensitive adhesive master batch. The non-adhesive polyethylene protective film has the advantages of high viscous force, no adhesive residue, good mechanical property, high transparency and the like. The defects of the existing polyethylene film can be overcome.

The present invention discloses a kind of high dispersion gel-free white carbon black, which contains SiO2 over 99 wt%, and has specific surface area of 320-380 sq m / g and particle diameter smaller than 11 nm. The present invention also discloses the preparation process of the high dispersion gel-free white carbon black, and the preparation process is one direct process including dissolving, synthesis, filtering and spray drying. The preparation process has low production cost.

A process for preparing hot-melt pressure-sensitive adhesives from aqueous dispersions based on polyacrylate, and pressure-sensitively adhesive articles produced therefrom, which comprises producing highly concentrated aqueous dispersions with polymer contents between 68% by weight and 87% by weight of gel-free, molecularly-dispersely meltable polymer particles with an at least bimodal size distribution in size ranges between 0.5 μm and 1000 μm Ø.

Methods and apparatus for qualitative and quantitative proteome analysis are provided. The methods and apparatus allow for the isolation of a subset of peptides out of complex mixtures of peptides. The isolation is based on a specific chemical and / or enzymatic alteration of one or more types of peptides. This alteration modifies the biophysical, chemical or any other biochemical property of the affected types of peptides (e.g., net electrical charge and / or hydrophobicity) in such way that the altered peptides can be separated from the unaltered peptides.

The invention relates to a flexible circuit board, which comprises a plurality of copper clad substrates, a line pattern, a plurality of bonding colloids corresponding to the plurality of copper clad substrates, and a plurality of conductive holes; each copper clad substrate is provided with an insulating base material and an outer-layer line; the line pattern comprises a linear signal line, two ground lines and two hollow areas; the two ground lines are arranged at two sides of the linear signal line and are parallel to each other; the plurality of copper clad substrates are located at two reverse sides of the line pattern; each bonding colloid is stacked between the line pattern and the corresponding copper clad substrate; a gel-free slot is formed in each bonding colloid; the slots of the plurality of bonding colloids and the two hollow areas form an air dielectric layer to coat the linear signal line; the slot of each bonding colloid is aligned at the linear signal line; and the linear signal line is spaced from the plurality of bonding colloids to form a suspended state. The plurality of conductive holes are electrically connected with the plurality of outer-layer lines and the two ground lines. The invention further relates to a manufacturing method of the flexible circuit board.

Belongs to the technical field of wood processing. In order to solve the problem that an adhesive agent is adopted in an existing reconstituted veneer, and consequently, poisonous and harmful volatile matter is released, the preparing method of the glue-free reconstituted veneer comprises the steps that a fast-growing wood veneer is subjected to delignification by using a delignification solution to obtain a delignified wood sample; 80% of water in the delignified wood sample is removed through cold pressing; and after hot-pressing drying, a glue-free reconstituted veneer is obtained. According to the preparing method, hydroxyl on the surface of cellulose and hemicellulose is exposed through delignification, a multiple hydrogen-bond network is formed under pressure, and high mechanical strength and high size stability of the reconstituted veneer are given. In the preparing method, no adhesive agent is used, the reconstituted veneer is low in cost, simple in process and short in time, zero volatile of formaldehyde is really realized; the problems are solved that a great amount of the adhesive agent is used in artificial timbers, the indoor environment is polluted, and the human body health is harmed; and the glue-free reconstituted veneer has a higher market value.

The present invention relates generally to the separation of proteins in free solution using electrophoresis. The invention provides gel-free methods of separating proteins that involve the use of a mixture of alkyl sulfates of different carbon chain lengths.

The invention discloses a camera process protecting film which sequentially comprises a first protecting layer, a PET supporting layer and a sticking layer from the top to the bottom, wherein the sticking layer is used for the connection between a product and a camera, a silica gel protecting film layer is used for avoiding unfavorable conditions such as adhesive residue and the like, due to the design of a local protecting film, the lens of the camera cannot be polluted by gel, and the design of a gel-free pulling ear part facilitates that an operator is free from influences caused by the viscosity of the silica gel protecting film layer during the use, therefore, assembling capacity is improved. The PET supporting layer plays a support heightening effect through a middle hollowing out method, so as to prevent the camera from the effect of external force which can cause crushed product and loss. The first protecting layer uses a full page PC polycarbonate material to seal the entire protecting film, so that the camera is isolated from the outside and dust pollution is avoided, moreover, harms to the product, caused by external force, can be avoided. The three layers are combined together, and a user can attach the tree-layered structure in one step, therefore, the requirement of high performance is met, the working hour for production is reduced, the cost is lowered, and the benefit is maximized.

The invention relates to a biodegradable polyester, particularly suitable for extrusion coating, comprising units deriving from at least a diacid and at least a diol, with long chain branches (isometric with respect to the main chains of the polyester) and essentially gel-free, characterized by optimum adhesion to paper, excellent sealability and processability in extrusion coating systems. Said biodegradable polyester is obtainable through a reactive extrusion process starting from a substantially linear polyester precursor with defined viscosity and concentration of reactive sites which allow transformation of a few chains of the polyester precursor into isometric branches of this polyester. A further object of the present invention is a laminate product composed of at least a backing, preferably paper, and of at least a first layer composed of polyester according to the invention.