39results about How to "Avoid residual phenomenon" patented technology

The invention provides a middle hanger bearing device of a screw conveyer. The middle hanger bearing device comprises an installation plate, right-angled supports, a supporting plate, a hollow and cylindrical bearing seat, a bearing and a plurality of bolts; wherein the installation plate is horizontally arranged; the right-angled supports are arranged on two sides below the installation plate and are symmetrically arranged; the supporting plate protrudes downwards from the center of the installation plate; the hollow and cylindrical bearing seat is arranged below the supporting plate and is fixedly connected with the supporting plate; the bearing is contained in the bearing seat; the bolts are used for fixing the installation plate and the supports; and the supporting plate comprises an axial connecting plate, longitudinal rib plates which are vertically arranged on the axial connecting plate, and two material guide plates which are arranged on two sides of the axial connecting plate and one side of the longitudinal rib plates, wherein the two material guide plates are vertically and fixedly connected below the installation plate and push against the outer wall of the bearing seat to form two sealed chambers. By arranging the two material guide plates, the situation of material residues is prevented from occurring, materials are prevented from causing blockage and the material conveying efficiency is improved.

The present invention provides an adhesive composition and a surface protection film that have excellent antistatic performance, that have excellent adhesive strength balance at a slow peel rate and at a fast peel rate, and that further also have excellent durability performance and reworking performance. The present invention includes an acrylic-based polymer of a copolymer including: (A) a (meth)acrylic acid ester monomer having a C4 to C18 alkyl group; (B) a hydroxyl group-containing copolymerizable monomer; (C) a carboxyl group-containing copolymerizable monomer; (D) a polyalkylene glycolmono(meth)acrylic acid ester monomer; and (E) a nitrogen-containing vinyl monomer not containing a hydroxyl group or an alkoxy group-containing alkyl (meth)acrylate monomer, and further contains (F) atrifunctional or higher isocyanate compound, (G) a bifunctional non-cyclic aliphatic isocyanate compound, and (H) an antistatic agent.

PROBLEM TO BE SOLVED: To provide an adhesive composition which has antistatic performance, is excellent in balance of adhesion at a low peel rate and a high peel rate, and excellent in durability and reworkability.SOLUTION: An adhesive composition comprises an acrylic polymer of a copolymer which comprises (A) a (meth)acrylic acid ester monomer in which the number of carbon atoms of an alkyl group is 4-10, (B) a copolymerizable monomer containing a hydroxyl group, (C) a copolymerizable monomer containing a carboxyl group, (D) a polyalkylene glycol mono(meth)acrylic acid ester monomer, and (E) a nitrogen-containing vinyl monomer free of a hydroxyl group or an alkoxy group-containing alkyl (meth)acrylate monomer, and further contains (F) an isocyanate compound having three or more functions, (G) a crosslinking retarder, (H) a crosslinking catalyst, (I) an antistatic agent, (J) a polyether modified siloxane compound. The acid value of the acrylic polymer is 0.01-8.0.

The present invention provides an adhesive composition having antistatic properties, excellent balance of adhesive force at low peeling speed and high peeling speed, long pot life, durability and reworkability. The binder composition includes: (A) at least one of (meth)acrylate monomers whose alkyl carbon atoms are C4-C18 and (B) hydroxyl-containing monomers as a copolymerizable monomer group. 100 parts by weight of copolymers of copolymerizable monomers; (C) 0.1 to 10 parts by weight of isocyanate compounds with more than two functions; (D) 0.001 to 0.5 parts by weight of crosslinking catalysts for metal chelates; (E) keto-enol 0.1-200 parts by weight of tautomeric compounds; and 0.05-5 parts by weight of ionic compounds whose melting point is 25-50°C as (F) antistatic agent, and the ratio of parts by weight of (E) / (D) is 70~700.

The present invention provides an adhesive that has excellent antistatic properties, excellent balance of adhesive force at peeling speeds in low-speed and high-speed regions, excellent durability and reworkability, and can prevent defects such as indentations caused by external stress combination. The binder composition contains 100 parts by weight of a (meth)acrylic polymer with an acid value of 0.01 to 8.0 and 0.1 to 5 parts by weight of part of crosslinking agent, the (meth)acrylic polymer consists of 55 to 97.5 parts by weight of alkyl (meth)acrylate having an alkyl group with 4 to 10 carbon atoms, 1 to 30 parts by weight of Alkyl (meth)acrylate with an alkyl group of 14 to 18, 0.1 to 15 parts by weight of a hydroxyl-containing copolymerizable monomer and 0.1 to 2 parts by weight of a carboxyl group-containing copolymerizable monomer are copolymerized; the antistatic agent has a melting point Ionic compounds at 30-50°C.

The invention discloses an end wall of an open wagon. The end wall comprises upper end transverse beams (3) and end wall plates (4), wherein the upper end transverse beams (3) are positioned on the outer sides of the end wall plates (4); the upper parts of the end wall plates (4) are inclined inwards; the inner sides of the end wall plates (4) are provided with longitudinal inner end columns (5); the outer sides of the inclined parts are provided with outer longitudinal end columns (6). According to the end wall, the effective capacity of the body of the open wagon can be increased remarkably on the premise of not changing the overall dimensions of the body; meanwhile, the phenomenon of remaining of goods is avoided. The invention further discloses a railway open wagon provided with the end wall for the open wagon.

PROBLEM TO BE SOLVED: To provide an adhesive composition which has excellent antistatic performance, an excellent balance of adhesiveness at peeling rates in a low speed region and a high speed region, and further excellent durability performance and rework performance, and to provide an adhesive film and a surface protective film.SOLUTION: There is provided an adhesive composition containing an antistatic agent, which comprises: 100 pts.wt. of an acrylic polymer containing as a main component an alkyl (meth)acrylate having a C4 to C10 alkyl group; 85 to 98.5 pts.wt. of an alkyl (meth)acrylate being a main component; 0.1 to 15 pts.wt. of a hydroxyl group-containing copolymerizable monomer; 0.1 to 2 pts.wt. of a carboxyl group-containing copolymerizable monomer; and 0.1 to 5 pts.wt. of a crosslinking agent. The acrylic polymer has an acid value of 0.01 to 8.0. The antistatic agent is an ionic compound having a melting point of 30 to 50°C and contains a polyether-modified siloxane compound having an HLB value of 7 to 15.

The present invention provides an adhesive composition and a surface protective film, which have antistatic performance, excellence balance of adhesiveness in a low exfoliation speed and a high exfoliation speed, a long pot life, and excellent durability and reworkability. The adhesive composition comprises: (A) a (meth)acrylic acid ester monomer having C4 to C18 alkyl groups; (B) a hydroxyl-containing co-polymerizable monomer; (C) a carboxyl-containing co-polymerizable monomer; (D) polyalkylene glycol mono(meth)acrylate ester monomer; (E) a nitrogen-containing vinyl monomer containing no hydroxyl group or an acryl-based polymer, as a co-polymer having an acid value of 0.01 to 8.0 and including an alkoxy-containing alkyl(meth)acrylate monomer; (F) a bifunctional or higher isocyanate compound; (G) a cross-linking catalyst for a metal chelate; (H) a keto-enol tautomer compound; (I) an antistatic agent; (J) a polyether-modified siloxane compound; and (K) an antioxidant.

The invention discloses a driving circuit and driving method of a liquid crystal display device and a liquid crystal display device. The driving method comprises the steps of generating a trigger signal a first period of time after the liquid crystal display device is turned off, and controlling the grid break-over voltage of a thin film transistor in the liquid crystal display device to rise in asecond period of time according to the trigger signal. The driving method can avoid pixel capacitance charge residues in the liquid crystal display device, thereby solving the screen flicker problemof the liquid crystal display device at the moment of shutdown.

The invention provides a middle hanger bearing device of a screw conveyer. The middle hanger bearing device comprises an installation plate, right-angled supports, a supporting plate, a hollow and cylindrical bearing seat, a bearing and a plurality of bolts; wherein the installation plate is horizontally arranged; the right-angled supports are arranged on two sides below the installation plate and are symmetrically arranged; the supporting plate protrudes downwards from the center of the installation plate; the hollow and cylindrical bearing seat is arranged below the supporting plate and is fixedly connected with the supporting plate; the bearing is contained in the bearing seat; the bolts are used for fixing the installation plate and the supports; and the supporting plate comprises an axial connecting plate, longitudinal rib plates which are vertically arranged on the axial connecting plate, and two material guide plates which are arranged on two sides of the axial connecting plate and one side of the longitudinal rib plates, wherein the two material guide plates are vertically and fixedly connected below the installation plate and push against the outer wall of the bearing seat to form two sealed chambers. By arranging the two material guide plates, the situation of material residues is prevented from occurring, materials are prevented from causing blockage and the material conveying efficiency is improved.