Abstract: A box-shaped package of a flexible and sealable, especially heat-sealable, packaging material including a front wall (1) and a back wall (2) arranged opposite each another and sealed together along opposed side edges thereof by means transverse side seams (5, 6). The package further includes two opposed and inwardly folded end walls (3, 4), a first end wall (3) being sealed to the front and the back walls (1, 2) along first longitudinal end seams (9,10) and along first end side seams (11, 12) and a second end wall (4) being sealed to the front and the back walls (1, 2) along second longitudinal end seams (15, 16) and along second end side seams (17, 18). At least one of the side seams is peelable, and at least portions of the front and the back walls (1, 2) extend beyond the transverse peelable side seam (5) to form a front wall gripping member (19) and a back wall gripping member (20).

Abstract: The invention deals with a processing aid for polymeric compositions. The processing aid is a terpolymer comprising 10-49% by weight of a vinyl aromatic monomer like styrene, 5-35% by weight of an acrylic nitrile, like acrylonitrile and 21-60% by weight of an alkylacrylate or alkylmethacrylate with a viscosity number of more than four as measured in dimethylformamide at 30.degree. C. at a concentration of 100 mg terpolymer per 100 ml dimethylformamide.

Abstract: The invention deals with a processing aid for polymeric compositions. The processing aid is a terpolymer comprising 10-49% by weight of a vinyl aromatic monomer like styrene, 5-35% by weight of an acrylic nitrile, like acrylonitrile and 21-60% by weight of an alkylacrylate or alkylmethacrylate with a viscosity number of more than four as measured in dimethylformamide at 30+ C. at a concentration of 100 mg terpolymer per 100 ml dimethylformamide.