<p>A method of introducing an additive, for example a dye, into a polymeric material comprises using a liquid formulation comprising the additive, a vehicle and an active compound added to increase the melt viscosity of the polymeric material. The active compound may be a multi-functional anhydride. The liquid formulation is suitably contacted with the polymeric material in a melt processing apparatus and suitably a cavity transfer mixer is used in the process. A fibre is suitably subsequently produced.</p>
申请公布号
MX2013007093(A)
申请公布日期
2013.08.08
申请号
MX20130007093
申请日期
2011.12.19
申请人
COLORMATRIX HOLDINGS, INC.*
发明人
GOULBOURN, JOHN;OVEREND, ANDREW;LEEMING, JAMES (HEREDERO DEL INVENTOR FALLECIDO);LEEMING, CHRISTINE (FALLECIDO)