Abstract:
PROBLEM TO BE SOLVED: To provide an adhesive material which can be applied to a thermally expandable sheet, and a laminated structure which, when temperature is raised by fire or the like, is expanded and carbonized to protect a substrate.SOLUTION: An adhesive material comprises a synthetic resin having a specific acid value and a specific hydroxyl value. In a laminated structure, a thermally expandable sheet is laminated on a substrate through the adhesive material.
Abstract:
The present invention has its object to provide a curable composition which comprises a guanidine compound as a non-organotin type catalyst, is less discolored, has good surface curability, depth curability, strength rise and adhesiveness, and can retain the curability even after storage; the above object can be achieved by a curable composition which comprises: (A) an organic polymer containing a silyl group capable of crosslinking under siloxane bond formation, the silyl group being a group represented by the general formula (1): -SiX 3 (1) (wherein X represents a hydroxyl group or a hydrolyzable group and the three X groups may be mutually the same or different), (B) a guanidine compound (B-1) as a silanol condensation catalyst, and (C) a plasticizer, wherein the content of the component (B-1) is not lower than 0.1 part by weight but lower than 8 parts by weight per 100 parts by weight of the component (A), and a non-phthalate ester plasticizer accounts for 80 to 100% by weight of the (C) component plasticizer.
Abstract:
PROBLEM TO BE SOLVED: To provide a thermosetting resin composition for semiconductor bonding, having a low elastic modulus and high adhesion, and to provide a semiconductor device excellent in solder crack resistance.SOLUTION: A thermosetting resin composition for semiconductor bonding contains: (A) a hydrocarbon compound that has a number average molecular weight of 500 to 30,000 and has a double bond in a molecular framework, or its derivative; (B) a polymerized monomer having an ethylenically unsaturated group; (C) a radical polymerization catalyst; (D) a thiadiazolyl disulfide compound having a specific structure; and (E) a filler. A semiconductor device is formed by bonding a semiconductor element onto a semiconductor element support member by the resin composition.
Abstract:
PROBLEM TO BE SOLVED: To provide an aqueous dispersion which develops the excellent adhesion (adhesiveness) to molded articles of various kinds of resins of polyolefins such as polypropylene, synthetic rubbers, unsaturated polyesters, epoxy resins, polyurethane resins or the like, or to metals such as steel plates and aluminum. SOLUTION: The aqueous dispersion comprises (A) a thermoplastic elastomer and (C) a urethane linkage-containing resin in the same particle; and the aqueous dispersion comprises a reaction product formed by reacting (A) the thermoplastic elastomer with (C) the urethane linkage-containing resin; and the aqueous dispersion comprises a reaction product formed by reacting (B) a functional group-modified thermoplastic elastomer with (C) the urethane linkage-containing resin; and in addition, the aqueous dispersion comprises such a copolymer of propylene-1-butene as (A) the above thermoplastic elastomer. The aqueous dispersion has a new, as never before, operational advantage that the aqueous dispersion can be used just as it is without causing a separation phenomenon in the aqueous dispersion and as a sprayable coating material, paint, a primer and an adhesive, and has the excellent adhesion to molded articles of various kinds of resins such as polyolefins and synthetic rubbers and to metals such as steel plate and aluminum. Also, this aqueous dispersion can use a curing agent reactive with an active hydrogen and/or a hydroxy group. Furthermore, the more excellent adhesive aqueous dispersion can be obtained by utilizing as (A) the thermoplastic elastomer, a propylene-1-butene random copolymer. COPYRIGHT: (C)2008,JPO&INPIT