Patent ID: 6852787

Claim:
A composition comprising: (a) polymer particles having (1) a one millimeter penetration temperature of less than 75° C. as determined by thermal mechanical analysis; or (2) an unconfined yield strength of greater than 15 pounds per square foot (73 kilograms per square meter); or (3) both (1) and (2); (b) an effective amount of anti-blocking agent mechanically adhered to the polymer particles; wherein the polymer particles comprise a substantially random interpolymer comprising: (1) polymer units derived from: (i) at least one vinyl or vinylidene aromatic monomer; or (ii) a combination of at least one vinyl or vinylidene aromatic monomer and at least one sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer; and (2) polymer units derived from at least one (i) ethylene; or (ii) aliphatic alpha-olefin monomer having from 3 to 20 carbon atoms.