Patent ID: 9243101
Filing Date: 2016-01-26
CPC Classification: C08G,C08L,Y10T

Claim Text:
1. A pack comprising powder or granules which comprise polymeric material which is a copolymer comprising at least two units selected from: (a) a unit of formula IV wherein Ar represents moiety (iv), E and E′ represent oxygen atoms, m represents 0, w represents 1, G represents a direct link, s represents 0, and A and B represent 1; (b) a unit of formula IV wherein E represents an oxygen atom, E′ represents a direct link, Ar represents a moiety of structure (ii), m represents 0, A represents 1, B represents 0; (c) a unit of formula IV wherein E represents an oxygen atom, Ar represents moiety (i), m represents 0, E′ represents a direct link, A represents 1, B represents 0; (d) a unit of formula IV wherein Ar represents moiety (ii), E and E′ represent oxygen atoms, G represents a direct link, m represents 0, w represents 1, r represents 0, s represents 1 and A and B represent 1; (e) a unit of formula IV, wherein Ar represents moiety (iv), E and E′ represents oxygen atoms, G represents a direct link, m represents 0, w represents 0, s, r, A and B represent 1; and (f) a unit of formula IV, wherein Ar represents moiety (iv), E and E′ represent oxygen atoms, m represents 1, w represents 1, A represents 1, B represents 1, r and s represent 0 and G represents a direct link; wherein Ar is selected from wherein said copolymer has a melt-viscosity (MV) in the range 0.07 to 0.11 KNsm −2 , when measured at a shear rate of 1000 s −1 , a temperature of 400° C. and using a tungsten carbide die 0.5×3.175 mm.