摘要:
A cyanate ester resin composition for a printed wiring board material containing a cyanate ester resin component A comprising a cyanate ester compound represented by the formula (1) and/or an oligomer thereof, and at least one component B selected from the group consisting of an epoxy resin and a maleimide compound, which resin composition is improved in heat resistance and heat resistance after moisture absorption, is excellent in mechanical properties such as elastic modulus and has flame retardancy without a halogen compound, and a prepreg and a laminate each of which uses the resin composition defined as above wherein the resin composition contains the component A and at least the epoxy resin as the component B.
摘要:
A cyanate ester compound represented by the formula (1), wherein Ar2 represents a phenylene group, a naphthylene group or a biphenylene group, Ar1 represents a naphthylene group or a biphenylene group when Ar2 is a phenylene group, or Ar1 represents a phenylene group, a naphthylene group or a biphenylene group when Ar2 is a naphthylene group or a biphenylene group, Rx represents all substituents of Ar1, each Rx is the same or different and represents hydrogen, an alkyl group or an aryl group, Ry represents all substituents of Ar2, each Ry is the same or different and represents hydrogen, an alkyl group or an aryl group, and n is an integer of 1 to 50.
摘要:
A cyanate ester compound represented by the formula (1), wherein Ar2 represents a phenylene group, a naphthylene group or a biphenylene group, Ar1 represents a naphthylene group or a biphenylene group when Ar2 is a phenylene group, or Ar1 represents a phenylene group, a naphthylene group or a biphenylene group when Ar2 is a naphthylene group or a biphenylene group, Rx represents all substituents of Ar1, each Rx is the same or different and represents hydrogen, an alkyl group or an aryl group, Ry represents all substituents of Ar2, each Ry is the same or different and represents hydrogen, an alkyl group or an aryl group, and n is an integer of 1 to 50.
摘要:
To provide a novel cyanate ester compound that can realize a cured product having low dielectric constant and dielectric loss tangent, and excellent flame retardancy and heat resistance, and moreover has relatively low viscosity, excellent solvent solubility, and also excellent handling properties, and a method for producing the cyanate ester compound, and a curable resin composition and the like using the cyanate ester compound. A phenol-modified xylene formaldehyde resin is cyanated.
摘要:
To provide a novel cyanate ester compound that can realize a cured product having low dielectric constant and dielectric loss tangent, and excellent flame retardancy and heat resistance, and moreover has relatively low viscosity, excellent solvent solubility, and also excellent handling properties, and a method for producing the cyanate ester compound, and a curable resin composition and the like using the cyanate ester compound. A phenol-modified xylene formaldehyde resin is cyanated.
摘要:
Provided is a cyanate ester polymer having excellent flame retardance, low dielectric constant, low dielectric loss tangent and high heat resistance. Specifically provided is a cyanate ester polymer obtained by polymerizing a cyanate ester compound represented by the following general formula (1). (1) In the formula, X represents OCN or OH, and 10-100% by mol of X is composed of OCN.
摘要:
Provided is a cyanate ester polymer having excellent flame retardance, low dielectric constant, low dielectric loss tangent and high heat resistance. Specifically provided is a cyanate ester polymer obtained by polymerizing a cyanate ester compound represented by the following general formula (1). (1) In the formula, X represents OCN or OH, and 10-100% by mol of X is composed of OCN.
摘要:
A curable resin composition which is in a liquid form at ordinary temperature and provides a cured product having excellent heat resistance and a low thermal expansion rate is provided. The curable resin composition according to the present invention comprises: a cyanate ester compound (A) represented by the following formula (I); and a curing accelerator (B): wherein R1 represents a hydrocarbon group having 2 to 20 carbon atoms.
摘要:
A cyanate ester compound represented by the formula (1), wherein Ar2 represents a phenylene group, a naphthylene group or a biphenylene group, Ar1 represents a naphthylene group or a biphenylene group when Ar2 is a phenylene group, or Ar1 represents a phenylene group, a naphthylene group or a biphenylene group when Ar2 is a naphthylene group or a biphenylene group, Rx represents all substituents of Ar1 each Rx is the same or different and represents hydrogen, an alkyl group or an aryl group, Ry represents all substituents of Ar2, each Ry is the same or different and represents hydrogen, an alkyl group or an aryl group, and n is an integer of 1 to 50.
摘要:
A safe and stable production method of a hydrogenated polymer having high transparency, which is a production method of a hydrogenated polymer by hydrogenating aromatic rings of an aromatic vinyl compound-(meth)acrylate copolymer, in which (1) a solvent solution of the copolymer is added to a reactor, which has a solvent and a supported palladium catalyst charged therein, under a hydrogen atmosphere at a rate of from 0.01 to 15 g/hour in terms of the copolymer per unit mass (g) of the supported palladium catalyst, thereby performing hydrogenation reaction, and then such an operation is performed repeatedly that (2) a hydrogenated polymer is obtained from 30 to 90% by mass of the resulting reaction mixed solution, and a fresh solvent solution of the copolymer is added to the reactor, in which the residual reaction mixed solution is left, or to which the residual reaction mixed solution is returned, at a rate of from 0.01 to 15 g/hour in terms of the copolymer per unit mass (g) of the supported palladium catalyst, thereby performing hydrogenation reaction.