Polymer mixture comprising aromatic polycarbonate, polybutylene terephthalate and polyalkylene glycol
AssigneeGeneral Electric Company
InventorsRobertus E. de Jong, Torben P. Kempers, Gerrit de Wit
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Abstract
The invention relates to polymer mixtures which comprise an aromatic polycarbonate, a polybutylene terephthalate and a polyalkylene glycol. Due to the presence of the polyalkylene glycol a good lacquer bonding is obtained when lacquer systems on the basis of water are used.
Claims11
A polymer mixture which comprises (A) a polybutylene terephthalate and (B) an aromatic polycarbonate, characterised in that the polymer mixture comprises (C) 0.1-5 parts by weight of a polyalkylene glycol selected from the group consisting of polyalkylene glycol polymers and polyalkylene glycol copolymers per 100 parts by weight of A+B, said polyalkylene glycol having a molecular weight between 200 and 20,000 g/mol, said polyalkylene glycol being present in an amount sufficient to improve lacquer bonding to injection molded articles formed from said polymer mixture.
A polymer mixture which consists essentially of (A) a polybutylene terephthalate, (B) an aromatic polycarbonate, and (C) a polyalkylene glycol having a molecular weight of between 500 g/mol and 5,000 g/mol, said polyalkylene glycol being present at a level of from 0.1-5 parts by weight per 100 parts by weight of A+B, said polyalkylene glycol being present at a level sufficient to improve the bonding of lacquer to injection molded articles formed from the polymer mixture.
Dependencies are inferred from the claim text.