34results about How to "Excellent low temperature adhesion" patented technology

A film adhesive having an adhesive layer (C) mainly containing a thermoplastic polyimide having a glass transition temperature of not more than 100° C. and an adhesive layer (D) having a storage shear modulus of not more than 106 Pa at 50° C. Furthermore, the film adhesive further comprises a base material (A) and an adhesive layer (B). The film adhesive can exhibit excellent low-temperature adhesive property and covering capability functioning as a die bonding adhesive film which can be used in a semiconductor package. In addition, the film adhesive can exhibit excellent low-temperature adhesive property and covering capability which functions both as a die bonding adhesive film and as a dicing tape.

A resin composition comprises a polyimide resin composition or precursor thereof obtained from an acid dianhydride component containing a compound represented by the following Formula (1) and a diamine component containing a diamine compound represented by the following Formula (2), and a bismaleimide compound represented by the following Formula (3),wherein the diamine component contains a diamine compound (a) in which m in the Formula (2) represents an integer of 0 or 1 and a diamine component (b) in which m in the Formula (2) represents an integer of 2 to 6 in a molar ratio (a:b) of from 100:0 to 50:50,wherein, in the Formula (2), when m is 2 or more, each X may be independently the same or different, and represents O, SO2, S, CO, CH2, C(CH3)2, C(CF3)2 or a direct bond,wherein, in the Formula (3), n represents an integer of 0 to 6.

The invention relates to a self-adhesive waterproof coiled material of a super-strength cross-lamination film, which comprises an isolation protective layer, a non-asphalt-based self-adhesive layer, a strong cross-lamination film, an asphalt self-adhesive layer and a PE isolation film from top to bottom. There is an overlapping edge on one side of the upper surface of the coiled material, and an overlapping edge is also left on the other side of the lower surface of the coiled material. The waterproof membrane provided by the present invention has better bonding performance with the post-cast concrete than the asphalt-based membrane, and can be better bonded with the main structure (that is, the pre-laid anti-adhesive membrane). The strong cross-laminated membrane in the middle of the membrane has Good ductility, when the base layer subsides or the main structure is slightly deformed, the coil can continue to maintain good adhesion to the main structure without detachment, and it will also have a good waterproof effect.

The invention discloses an anti-stripping cyanoacrylate adhesive. The anti-stripping cyanoacrylate adhesive is prepared from, by weight, 30-50 parts of alpha-ethyl cyanoacrylate, 0.5-4 parts of EVA, 2-5 parts of beta-propiolactone, 0.5-1 part of modified titanium oxide, 8-12 parts of gelatin, 5-10 parts of polyacrylate, 2-8 parts of galactomannan, 3-8 parts of hydroxyethyl cellulose and 1-1.5 parts of coupling agent. The invention further discloses a preparation method of the anti-stripping cyanoacrylate adhesive. The anti-stripping cyanoacrylate adhesive is high in curing speed, good in water resistance, high in impact resistance, large in bonding strength, good in anti-stripping performance, small in use amount, free of toxicity and beneficial to environmental protection.

The invention relates to an asphalt waterproof paint for a building and a preparation method thereof, belonging to the technical field of chemical industry. The asphalt waterproof paint for a building comprises the following raw materials according to parts by weight: 20-25 parts of plasticizer, 6-8 parts of modifier, 25-30 parts of asphalt, 20-30 parts of filler, 4-6 parts of tackifier, 0.2-0.3 parts of crosslink coupling agent, and 0.3-0.5 parts of dispersing agent. The invention has the advantages of reasonable compound design, good intensity, safety, environmental protection and stable product quality, and is capable of adapting the climatic conditions at high and low temperatures.

The present invention addresses the problem of providing: a multilayer film which has excellent handling properties and excellent low-temperature adhesiveness to objects of interest made from variousmaterials and can be used for various decorative molding into three-dimensional shapes, and for which the material and the decoration technique can be selected highly flexibility; and a method for producing the multilayer film. The present invention that can solve the problem is a multilayer film which is composed of a multilayer film composed of an intermediate layer (X) and layers (Y) respectively arranged on both surfaces of the intermediate layer (X), and a decorative layer (Z) closely arranged on the surface of either one of the layers (Y), wherein the intermediate layer (X) is composed of a thermoplastic resin layer having a bending stiffness modulus of 60 to 30000 kPa*mm3, and each of the layers (Y) is made from a thermoplastic polymer composition containing a thermoplastic elastomer (A) that is a block copolymer containing an aromatic vinyl compound block (a1) and a conjugated diene compound block (a2) and a polypropylene resin (B) in an amount of 0 to 50 parts by mass relativeto the amount of the thermoplastic elastomer (A). The present invention is also a method for producing the multilayer film, characterized by comprising bringing the thermoplastic resin layers (Y) that serve as the surface layers and are in a molten state into contact with a roll having a surface made from a hydrophobic resin.

The invention provides an environment-friendly modified starch / feather protein graft copolymer composite slurry, a preparation method and application thereof. Use waste feather down as raw material to prepare feather protein graft copolymer slurry, and use modified starch as the main slurry. First, the modified starch aqueous dispersion is stirred and gelatinized at high temperature to form a slurry, and then cooled to the required temperature. , add the feather protein graft copolymer aqueous solution which has been fully stirred for a certain period of time at the same temperature as the main slurry, and fully stir for a certain period of time to fully compound to obtain the composite slurry. The composite slurry prepared by the present invention utilizes the modified starch and the polar group of the feather protein graft copolymer slurry molecular chain to hydrogen bond with the ester group on the polylactic acid molecular chain and generate van der Waals force, and with the help of feather protein The low surface tension of the graft copolymer size significantly improves the low-temperature adhesion of starch to polylactic acid yarns, and is very suitable for low-temperature sizing of polylactic acid warp yarns.

The present invention discloses a rapidest adhesive for plastics. It is mainly formed from polymethyl methacrylate resin, dichloromethane, dichloroethane, tetrahydrofuran and acetone. It can be extensively used for instantaneous adhesion bond between plastic self-bodies or mutually them or ABS plastics, PS plastics, HIPS plastics, PMMA plastics, PVC plastics, PC plastics, polysulfones plastics, polyphenyl ether, acetyl cellulose and cellulose propionate. Said adhesive is colourless and trasparent, water-proof, fire-retardant, and is good in low-temp. adhesivity.