摘要:
By a temporary adhesive for production of semiconductor device containing (A) a radical polymerizable monomer or oligomer containing a fluorine atom or a silicon atom, (B) a polymer compound, and (C) a radical polymerization initiator, a temporary adhesive for production of semiconductor device, which is excellent in coating property, which reduces a problem of generation of gas therefrom in the temporary support even under high temperature condition when the member to be processed (for example, a semiconductor wafer) is subjected to a mechanical or chemical processing, and further which can easily release the temporary support for the member processed without imparting damage to the member processed even after being subjected to a process at a high temperature, and an adhesive support and a production method of semiconductor device using the same are provided.
摘要:
The invention provides compositions containing at least one functionalized polyolefin, and in particular, to compositions containing at least one functionalized ethylene interpolymer, which has a melt viscosity less than 50,000 cP at 350° F. (177° C.) and a molecular weight distribution (Mw/Mn) from about 1 to 5. The invention also provides adhesive formulations containing the same. The invention also relates to the preparation of the functionalized interpolymers, by reacting, for example, such an ethylene interpolymer with the following: a) at least one unsaturated compound, containing at least one heteroatom, and b) at least one initiator.
摘要:
A photocurable pressure-sensitive adhesive composition, a photocurable pressure-sensitive adhesive layer, and a photocurable pressure-sensitive adhesive sheet including a support and such a photocurable pressure-sensitive adhesive layer formed on at least one side of the support are provided. The photocurable pressure-sensitive adhesive composition can form an adhesive layer that has sufficient initial adhesive strength through the process of drying and cross-linking without having any adhesive protruding at normal temperatures and pressures, hardens easily with light irradiation, and has a high peeling resistance. The photocurable adhesive composition contains a graft polymer that graft-polymerizes a monomer containing a cyclic ether group to a (meth)acrylic polymer and a cationic photopolymerization initiator. The photocurable adhesive layer and the photocurable adhesive sheet are prepared by using said photocurable adhesive composition.
摘要:
Provided are: an adhesive composition that is capable of providing an adhesive layer in which titanium-based nanoparticles are stably dispersed, an adhesive layer having more enhanced mechanical characteristics, excellent refractive index and excellent adhesive force, and an adhesive sheet or the like which uses the adhesive composition.
摘要:
A finely divided, cationic, aqueous polymer dispersion, obtained by (I) solution polymerizing a first mixture containing (a) 15-40% by weight of a mixture of (a1) a (meth)acrylate and (a2) a (meth)acrylamide, (b) 40-85% by weight of styrene, (c) 0.5-5% by weight of an ethylenically unsaturated monomer, and (d) 0-20% by weight of a nonionic, ethylenically unsaturated monomer differing from (b); (II) adding water; and (III) emulsion polymerizing a second monomer mixture containing (i) 0-29% by weight of styrene, (ii) 50-100% by weight of a C1- to C18-(meth)acrylate, (iii) 0-30% by weight of a vinyl ester of a C1-C30-carboxylic acid, and (iv) 0-30% by weight of a nonionic ethylenically unsaturated monomer differing from (i), (ii), and (iii), wherein at least one of the solution and emulsion polymerizing are performed in the presence of 0-10% by weight of a regulator.
摘要:
The present invention relates to modified polyolefins with atactic structural elements, to processes for preparation thereof and to the use thereof, especially as an adhesive or as a constituent of adhesives.
摘要:
The invention relates to multiphase compositions of matter comprising at least an acrylic phase and a hydrocarbon phase, and more specifically to pressure sensitive adhesive compositions of matter of an acrylic-hydrocarbon polymer and an additional hydrocarbon component which has a molecular weight of at least 1,000 and may include one or both of an oligomeric hydrocarbon and a polymeric hydrocarbon.
摘要:
The present invention provides a thermally crosslinking type curable composition having the following excellent performance and properties: it needs no poly vinyl chloride resin, and exhibits excellent adhesiveness even to aluminum alloy materials and the like. The curable composition is characterized in that a diluent and an adhesion promoter are compounded with a composition containing uncrosslinked type and/or partially crosslinked type synthetic rubber, a plasticizer, a filler and a core-shell type acrylic resin. As the diluent, there are preferably used paraffinic or naphthenic hydrocarbons obtained by distillation of crude oil, or chemically synthesized hydrocarbons which are the second or third class petroleum having a molecular weight of 200 or less.
摘要:
The use of compositions comprising a copolymer obtainable by multistage free-radical polymerization, in which first an aqueous polymer dispersion is prepared (referred to for short as 1st stage) and in at least one further stage monomers are polymerized in the presence of the resulting polymer dispersion (all further stages referred to for short as 2nd stage).
摘要:
Disclosed is a method for producing an aqueous polymer dispersion, according to which unsaturated monomers are first polymerized by means of suitable catalysts, whereupon the obtained polymers that are swelled with all or some of the remaining unreacted monomers are added to surface-active substances and water in a last step in which the obtained polymers are not entirely separated from the remaining monomers.