Patent ID: 8679826

Claim:
A method for recycling a paper product sized, coated, or both sized and coated with a polymer, comprising: pulping an aqueous wastepaper suspension comprising a paper product in the presence of a hydrolase, said paper product being a paper product sized and/or coated with a polyester to obtain an aqueous solution, which is a wastepaper suspension comprising a mixture of paper fibers and said polyester, and separating said polyester from the wastepaper suspension to recycle said paper fibers of said paper product, wherein said polyester is a polyester having a melt flow rate according to EN ISO 1133 (190° C., 2.16 kg weight) of from 2 to 50 cm 3 /10 min, and said hydrolase comprises at least one of a carboxyesterase [3.1.1.1], a lipase [3.1.1.3], and a cutinase (3.1.1.74).