Patent ID: 8759457

Claim:
A polyepoxide composition comprising a mixture of oligomers having multiple units of Formula (I) per molecule: [Ph(—R) x (—X—) y ] (I) wherein Ph represents a phenyl ring; each X independently represents a divalent group covalently bonded to the phenyl ring selected from a divalent hydrocarbylene group having from 1 to 6 carbon atoms, an ether group having 2 to 6 carbon atoms, and —OC(R 2 ) 2 C(R 1 )(OR 3 )C(R 2 ) 2 O—; each R independently represents a monovalent group covalently bonded to the phenyl ring selected from R 4 X 1 — and each R 1 independently represents —H or —C 1-14 alkyl; each R 2 independently represents —H or —CH 3 ; each R 3 independently represents —H or —C(R 2 ) 2 C(R 1 )(OH)C(R 2 ) 2 OPh(R) x (—X—) y ; each R 4 independently represents a substituted or unsubstituted aliphatic group having at least 4 carbon atoms, a substituted or unsubstituted cycloaliphatic group having at least 5 carbon atoms, a poly(oxyalkylene) group wherein an average number of carbon atoms per oxyalkylene unit is at least 3, or a substituted aryl group having one or more substituents, bonded directly to the aryl group via a covalent bond or bonded to the aryl group via an oxy, a thio, or a carbonyloxy divalent linking group, including one or more substituted or unsubstituted aliphatic groups having at least 4 carbon atoms, one or more substituted or unsubstituted cycloaliphatic groups having at least 5 carbon atoms, and/or one or more poly(oxyalkylene) groups wherein an average number of carbon atoms per oxyalkylene unit is at least 3, or a combination thereof; each X 1 independently represents a covalent bond or a divalent moiety selected from oxy, thio, carbonyloxy, and —X 2 C(R 2 ) 2 C(R 1 )(OH)C(R 2 ) 2 O—, wherein X 2 represents a covalent bond or a divalent moiety selected from oxy, thio, and carbonyloxy; x represents an integer in a range from 0 to 6 minus y; y represents an integer in a range from 0 to 3; x+y≧1; at least one oligomer of the mixture of oligomers has at least one divalent X group per molecule; Ph optionally has one or more monovalent aromatic ring substituents other than R 4 X 1 — and an average number of Ph groups per oligomer molecule in the mixture of oligomer molecules exceeds an average number of divalent X groups per oligomer molecule in the mixture of oligomer molecules; and the at least one oligomer comprises at least one unit of Formula (I) wherein at least one R substituent is R 4 X 1 —; the mixture of oligomers having an average of at least 2.5 units of Formula (I) per molecule and/or an average epoxy functionality of at least 2 per molecule; and a weight-ratio of oligomer molecules in the polyepoxide composition in which a R 4 X 1 — substituent is not present in at least one unit of Formula (I) to oligomer molecules in the polyepoxide composition in which at least one unit of Formula (I) has at least one R 4 X 1 — substituent is in a range from 5:95 to 80:20.