Inventor

FREITAG DIETER

DE197 patents

⚠️ This page may combine multiple inventors who share the name “FREITAG DIETER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FREITAG DIETER

BAYER AG

Process for the preparation of thermoplastic polycarbonates

Polycarbonates of substituted cyclohexylindenebisphenols

Process for the preparation of copolyphosphonates having high toughness

Thermoplastic, branched aromatic polyphosphonates, and a process for their production

Process for the preparation of thermoplastic aromatic polyphosphonates with improved thermal ageing resistance

Process for the preparation of aromatic polyesters and the use thereof for the production of injection molded articles, films and coatings

Aromatic polyphosphonates and a process for their production

Aromatic thermoplastic polyphosphonatocarbonate

Polycarbonates with alkylphenyl end groups, their preparation and their use

Mixtures of special new polycarbonates with other thermoplastics or with elastomers

Cross-linkable polycarbonate elastomers, a process for their preparation and use for packaging medicines

Aromatic polyester phosphonates

Highly branched polyphosphonates based on melamine

Flame-resistant polymer mixtures

Thermoplastic blends containing polyesters and polyester carbonates based on substituted cycloalkylidene bisphenols

Production of caprolactam by thermal depolymerization of polyamide 6

Thermoplastic blends containing polycarbonates based on substituted cyclohexylidenebisphenols

High-strength polycarbonate mixtures

Aromatic thermoplastic polyphosphonatocarbonate

Process for the production of colorless aromatic polyester and polyester carbonates

Process for the preparation of thermoplastic aromatic polyphosphonatocarbonates with improved heat-aging resistance, and their use

Process for the preparation of thermoplastic aromatic polyphosphonates containing small proportions of carbonate structures and product thereof

Process for the preparation of thermoplastic aromatic polyphosphonatocarbonates with improved heat-ageing resistance, and their use

Process for the preparation of carbonic acid aryl esters of polyester-diols lengthened via carbonate groups and their use for the preparation of polyester-diol bis-diphenol carbonates and polyester/polycarbonates

Mixtures of polyalkylene terephthalates, new polycarbonates and/or polyester-carbonates and elastomers

Polydiorganosiloxane/polycarbonate block cocondensates based on certain dihydroxydiphenylcycloalkanes

Aromatic ethers

Aromatic polyether sulphones based on dihydroxy-diphenyl-cyclo-alkanes and films therefrom

Process for the production of bifunctional OH-terminated polyphenylene oxides with dipolar aprotic solvent

Polycarbonate of alkyl cyclohexylidene bisphenol

Aromatic polyether ketones

Thermotropic aromatic polyester with high thermal stability

Process for the preparation of copolyphosphonates of high notched impact strength

Thermoplastic polysiloxane-polyester (carbonate) block copolymers, their preparation and use

Thermotropic aromatic polyesters having a high tenacity and an improved melt viscosity, and mouldings, filaments, fibres and films thereof

Internal antistatic agents for polycarbonates and for polycarbonate films

Flame-resistant moulding materials based on thermoplastic aromatic polyesters and polyesters carbonates, a process for their production and their use in the production of moulded bodies

Polycarbonates with end groups containing double bonds which can be crosslinked by UV light

Polycarbonate molding compositions with improved flame-repellency

Process for the purification of bisphenols

Polycarbonate mixtures in optical applications

Process for the production of optically isotropic extrusion films

FRX POLYMERS INC

Poly(block-phosphonato-ester) and poly(block-phosphonato-carbonate) and methods of making same

Branched polyphosphonates

Method for the production of block copolycarbonate/phosphonates and compositions therefrom

Oligomeric phosphonates and compositions including the same

Diaryl alkylphosphonates and methods for preparing same

Diaryl alkylphosphonates and methods for preparing same

TRITON SYSTEMS INC

Branched polyphosphonates that exhibit an advantageous combination of properties, and methods related thereto

ELECON INC

Compositions produced by solvent exchange methods and uses thereof