Patent ID: 9580577
Date: 2017-02-28
CPC Classifications: C08K,Y10T

Claim:
1. A thermosetting resin composition comprising: (a) a benzoxazine component comprising two benzoxazine monomer compounds wherein the relative amount of the benzoxazine monomer compounds to one another is 90:10-10:90 (weight:weight) wherein at least one of the benzoxazine monomers is a compound of the general formula (I) and at least another benzoxazine monomer is a compound of the general formula (II) wherein each R is, independently from one another, allyl, unsubstituted or substituted phenyl, unsubstituted or substituted C (b) at least one epoxy resin selected from the group consisting of biphenyl epoxy resin, stilbene epoxy resin, a glycidyl ether of butanediol, a glycidyl ether of polyethylene glycol, a glycidyl ether of polypropylene glycol, a glycidyl ester epoxy resin, vinylcyclohexene diepoxide, 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate, 2-(3,4-epoxy)cyclohexyl-5,5-spiro(3,4-epoxy)cyclohexane-m-dioxane, a glycidyl ether of para-xylene modified phenol resin, a glycidyl ether of meta-xylene-modified phenol resin, a glycidyl ether of terpene-modified phenol resin, a glycidyl ether of dicyclopentadiene-modified phenol resin, a glycidyl ether of cyclopentadiene-modified phenol resin, a glycidyl ether of polycyclic aromatic ring-modified phenol resin, a glycidyl ether of naphthalene ring-containing phenol resin, hydroquinone epoxy resin, trimethylolpropane epoxy resin, a linear aliphatic epoxy resin obtained by oxidation of an olefin bond with peracetic acid, diphenylmethane epoxy resin, an epoxide of phenol aralkyl resin, an epoxide of naphthol aralkyl resin, naphthalene epoxy resin and a mixture thereof characterized in that a resultant cured product formed by curing the thermosetting resin composition contains at least two or more of the following well-balanced properties: (1) a glass transition temperature (Tg) of greater than about 170° C.; (2) a decomposition temperature (Td) of greater than about 300° C.; (3) a time to delamination at 288° C. (T288) of greater than about 1 minute; (4) a UL94 flame retardancy ranking of at least V1; (5) a dielectric loss tangent of less than about 0.010 at 10 GHz; and, (6) a dielectric loss constant of less than about 4.00 at 10 GHz.