Patent ID: 6878766

Claim:
A dip-formed article which is shaped from a dip-formable composition comprising a conjugated diene copolymer comprising 60% to 81% by weight of conjugated diene monomer units, 17% to 35% by weight of ethylenically unsaturated nitrile monomer units, 2% to 3.5% by weight of ethylenically unsaturated acid monomer units, and 0% to 21% by weight of copolymerizable other ethylenically unsaturated monomer units, and sulfur; and which has a modulus in tension at 300% elongation of not larger than 3 MPa, a tensile strength at break of at least 10 MPa, an elongation at break of at least 500% and a modulus retention of at least 50%, and has a network chain concentration in the range of 4.8×10 −4 to 6×10 −4 mol/cm 3 .