Abstract: The invention relates to a gel-spun fiber comprising an ultra-high molecular weight polyethylene (UHMWPE), wherein the UHMWPE has an intrinsic viscosity (IV) of at least 4 dL/g and comprises at least 0.3 short chain branches per thousand total carbon atoms (SCB/1000TC), characterized in that the fiber further comprises between 0.1 and 10 parts by weight of carbon black based on 100 parts by weight of the amount of the polyethylene forming the fiber. The invention further relates to a yarn comprising at least 5 such gel-spun fibers as well as to articles comprising said fibers or yarns.

Abstract: The invention relates to the use of an antifouling composition and to an aquaculture pen for sheltering and feeding aquatic life, comprising: a) a supporting structure: and b) a netting attached to the supporting structure; said netting containing a continuously submerged portion, wherein said submerged portion of the netting defines a containment volume for containing the aquatic life; and wherein at least said submerged portion of the netting comprises an antifouling composition containing a cross-linked silicon polymer obtainable by cross-linking a silicon composition containing: i) a first silicon polymer having formula CH2?CH—(Si(CH3)2—O)n—CH?CH2 wherein n is an integer from 2 to 200; ii) a cross-linker containing a second silicon polymer having formula Si(CH3)3—O—(SiCH3H—O)m—Si(CH3)3 wherein m is an integer from 2 to 200; and iii) a metal catalyst wherein the metal is chosen from the group consisting of platinum, palladium and rhodium.