Patent ID: 7399800

Claim:
A composition comprising: a) at least one elastomer; and b) at least one crystallizable abietic acid derivative-based tackifier having the formula: wherein: (i) R is a linear or branched, substituted or unsubstituted alkyl or trans alkenyl group having from 12 to 30 carbon atoms, a fluoroalkyl or trans fluoroalkenyl group having from 12 to 30 carbon atoms, phenyl, benzyl, phenolic, naphthalenic, or hydroquinoid; (ii) R 1 , R 2 , R 1 ′, and R 2 ′ are independently H, a linear substituted or unsubstituted alkyl group having 1 or 2 carbon atoms, a linear or branched, substituted or unsubstituted alkyl group having 3 carbon atoms, a linear substituted or unsubstituted alkenyl group having 2 carbon atoms, or a linear or branched, substituted or unsubstituted alkenyl group having 3 carbon atoms, provided that if the ring containing R 1 and R 2 is aromatic, then R 1 and R 2 are not present, and if the ring containing R 1 ′ and R 2 ′ is aromatic, then R 1 ′ and R 2 ′ are not present; (iii) R 3 and R 3 ′ are independently H, a linear substituted or unsubstituted alkyl group having 1 or 2 carbon atoms, a linear or branched, substituted or unsubstituted alkyl group having 3 carbon atoms, a linear substituted or unsubstituted alkenyl group having 2 carbon atoms, or a linear or branched, substituted or unsubstituted alkenyl group having 3 carbon atoms; (iv) R′ and R″ are independently R, H, methyl, ethyl, glycerol, or glycol; (v) M is O or NRL; (vi) the six-membered rings have carbon-carbon single bonds or a combination of carbon-carbon single bonds and carbon-carbon double bonds; (vii) the six membered rings of (I) and (III) are independently aromatic or non-aromatic, provided that no more than two of the rings are aromatic; (viii) the six membered rings of (II) are independently aromatic or non-aromatic, provided that no more than four of the rings are aromatic; (ix) L is an optional spacer selected from the group consisting of: —(CO)—, —O—(CO)—, —OCH 2 —, vinyl, amide, —(CO)O(CHR 4 —CHR 5 O) n CH 2 —, and —(CO)O(CH 2 ) m OCH 2 , wherein n is 1 to 4, m is 1 to 4, R 4 and R 5 are independently H, methyl, or ethyl; and (x) the ratio of said elastomer to crystallizable abietic acid derivative-based tackifier is from about 3:1 to about 1:5 by weight.