摘要:
The invention relates to mixtures of special polyesters and/or special polyester carbonates with amorphous thermoplastics and/or with partly crystalline thermoplastics and/or with rubbers and/or with graft polymers useful for molding articles.
摘要:
The present invention relates to a process for producing polymer blends from polycarbonate and mass-polymerized ABS by the condensation of oligocarbonate in the presence of mass-polymerized ABS.
摘要:
A process for the production of polycarbonates by melt transesterification is disclosed. Accordingly, polycarbonate waste is dissolved in monophenols and at an elevated temperature and in the presence of a catalyst degraded to yield oligocarbonates, diaryl carbonates and diphenols. Following the optional separation of fillers and other additives there is produced by partial recondensation and the distillation of monophenol a higher viscosity oligocarbonate having a OH and aryl carbonate terminal groups and a weight average molecular weight of 8000 to 18000, the oligocarbonate thus produced is then polycondensed to form a polycarbonate resin.
摘要:
The invention relates to use of salts of sulphonic acids, phosphonic acids and/or carboxylic acids in combination with halogenated phthalimides for additional processing of glass fibre-containing polycarbonate moulded members.
摘要:
The mixtures according to the present invention of polyalkylene terephthalates, certain new polycarbonates and/or polyester-carbonates and elastomers have a particularly favourable low temperature strength/heat distortion point relationship compared with conventional moulding compositions containing known polycarbonates. The mixtures are used for the production of, in particular, shaped articles.
摘要:
The invention relates to oligomer epoxy resins which are derived especially from diphenols or from diglycidyl ethers based on these phenols, oligomer epoxy resins containing oxazolidinone groups and based on the novel diglycidyl ethers and curable mixtures containing the novel oligomer epoxy resins, and the reaction products of the novel oligomer epoxy resins with unsaturated carboxylic acids, preferably in the presence of a vinyl monomer to give phenacrylate resins, and phenacrylate resins containing oxazolidinone groups and based on the novel diglycidyl ethers.
摘要:
The invention relates to oligomer epoxy resins which are derived especially from diphenols or from diglycidyl ethers based on these phenols, oligomer epoxy resins containing oxazolidinone groups and based on the novel diglycidyl ethers and curable mixtures containing the novel oligomer epoxy resins, and the reaction products of the novel oligomer epoxy resins with unsaturated carboxylic acids, preferably in the presence of a vinyl monomer to give phenacrylate resins, and phenacrylate resins containing oxazolidinone groups and based on the novel diglycidyl ethers.
摘要:
The invention relates to a new process for the production of bifunctional polyphenylene oxides bearing OH groups as functional groups at both ends of the chain.
摘要:
Thermoplastic aromatic polycarbonates having average molecular weights Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding to formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another represent hydrogen, a C.sub.1 -C.sub.12 hydrocarbon radical, halogen andR.sup.5, R.sup.6 and R.sup.7 represent hydrogen, iso-C.sub.3 -C.sub.5 -alkyl,one of the substituents R.sup.5, R.sup.6 or R.sup.7 not being hydrogen, in quantities of from 100 to 1 mol-%, based on the total quantity of difunctional carbonate structural units in the polycarbonate.