摘要:
Coating liquid for producing insulating film having low dielectric constant is provided. It was achieved by coating liquid for producing insulating film having low dielectric constant comprising a thermosetting resin having carbon-carbon unsaturated bond, an organic solvent, and less than two molecular equivalents of water to the carbon-carbon unsaturated bond.
摘要:
This invention provides a multi-layer circuit board excellent in flame resistance, insulating property and adhesion and not generating detrimental substances when burnt, and a curable composition suitable for obtaining the multi-layer circuit board. The curable composition contains an insulating resin such as an alicyclic olefin polymer or an aromatic polyether polymer, a nitrogen-type curing agent such as 1,3-diallyl-5-glycidyl isocyanurate and a phosphorus-type flame retardant such as phosphoric acid ester amide, and is molded into a film by a solution casting method. The film so formed is laminated on an internal layer board and is cured to give the multi-layer circuit substrate.
摘要:
In a method of producing a low dielectric constant polymer, a thermosetting monomer is provided, wherein the thermosetting monomer has a cage compound or aryl core structure, and a plurality of arms that are covalently bound to the cage compound or core structure. In a subsequent step, the thermosetting monomer is incorporated into a polymer to form the low dielectric constant polymer, wherein the incorporation into the polymer comprises a chemical reaction of a triple bond that is located in at least one of the arms. Contemplated cage compounds and core structures include adamantane, diamantane, silicon, a phenyl group and a sexiphenylene group, while preferred arms include an arylene, a branched arylene, and an arylene ether. The thermosetting monomers may advantageously be employed to produce low-k dielectric material in electronic devices, and the dielectric constant of the polymer can be controlled by varying the overall length of the arms.
摘要:
A crosslinked polyarylene material with a reduced coefficient of thermal expansion at high temperatures compared with conventional crosslinked polyarylene materials is provided. In addition, an integrated circuit article containing a crosslinked polyarylene polymer with reduced coefficient of thermal expansion at high temperatures is provided.
摘要:
In a method of producing a low dielectric constant polymer, a thermosetting monomer is provided, wherein the thermosetting monomer has a cage compound or aryl core structure, and a plurality of arms that are covalently bound to the cage compound or core structure. In a subsequent step, the thermosetting monomer is incorporated into a polymer to form the low dielectric constant polymer, wherein the incorporation into the polymer comprises a chemical reaction of a triple bond that is located in at least one of the arms. Contemplated cage compounds and core structures include adamantane, diamantane, silicon, a phenyl group and a sexiphenylene group, while preferred arms include an arylene, a branched arylene, and an arylene ether. The thermosetting monomers may advantageously be employed to produce low-k dielectric material in electronic devices, and the dielectric constant of the polymer can be controlled by varying the overall length of the arms.
摘要:
This invention provides water-based compositions, particularly coating, ink, fountain solution and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of an acetylenic diol ethylene oxide/propylene oxide adduct of the structure 1 where r and t are 1 or 2, (nnullm) is 1 to 30 and (pnullq) is 1 to 30. Also disclosed is a method for making random and block EO/PO adducts of acetylenic diols by reacting an acetylenic diol with EO and/or PO in the presence of a trialkylamine or Lewis acid.
摘要:
This invention is an improvement in standard polymerizations procedures, i.e., addition-type and step-growth type polymerizations, wherein momomers are reacted to form a growing polymer chain. The improvement includes employing an effective amount of a trifunctional monomer (such as a trifunctional amine, anhydride, or phenol) in the polymerization procedure to form a mixture of polymeric materials consisting of branced polymers, star-shaped polymers, and linear polymers. This mixture of polymeric materials has a lower melt temperature and a lower melt viscosity than corresponding linear polymeric materials of equivalent molecular weight.
摘要:
The present invention provides a curable resin compound which is soluble in organic solvents and easy to use, and a method for producing the same. The curable resin compound comprises a structure and crosslinkable groups which end-cap the structure, the structure comprising three or four non-substituted benzene rings each of which is joined with each adjacent benzene ring by an ether or ketone linkage so that both types of linkages are present in the structure. Though the curable resin compound exhibits satisfactory solubilities in organic solvents, a composition comprising the compound can be cured by a crosslinking reaction to be insoluble in the organic solvents while being provided with improved solvent resistance and chemical resistance. Accordingly, the present invention also provides a cured-resin material derived from the aforementioned curable resin compound, the cured-resin material being excellent in solvent resistance, chemical resistance and thermal resistance.
摘要:
The present invention relates to a cross-linkable composition comprising: i) a fluorinated α,ω-bis(propargyl) oligomer of formula (I): in which m is 1 to 100, e.g. 1 to 93, n is 2 to 150, e.g. 1 to 128, p is 0 to 2 preferably 0 or 1.75, and, n, m and p are selected such that the fluorinated α,ω-bis(propargyl) oligomer of formula (I) has a number average molar mass Mn of 400 to 25000; ii) a cross-linking agent comprising at least three azide-N3 groups; and iii) optionally, a fluorinated oligomer comprising two terminal azide-N3 or fluorinated α,ω-bis(azide) oligomer groups. The invention also relates to a material comprising the click chemistry reaction product of the cross-linkable composition of the invention, to a method for preparing said material and to the uses thereof.