Inventor

TRESPER ERHARD

DE41 patents

Patents

41 patents

US4734484AMar 29, 1988

Thermoplastic mixtures of polypropylene with ethylene/vinyl acetate and ethylene/propylene copolymers

BAYER AG27 citations82

US5045585ASep 3, 1991

Rapid-crystallizing polyphenylene sulphide compositions

BAYER AG6 citations74

US4999414AMar 12, 1991

Process for the production of aromatic polyether ketones

BAYER AG9 citations74

US4942194AJul 17, 1990

Rapid-crystallizing polyphenylene sulphide compositions

BAYER AG6 citations74

US4289685ASep 15, 1981

Process for the preparation of flame-resistant polycarbonates

BAYER AG9 citations74

US4186154AJan 29, 1980

Polycarbonate mixtures which can be processed as thermoplastics

BAYER AG15 citations74

US4048200ASep 13, 1977

1,1,2-Tris-(o/p-hydroxyphenyl)-1-phenyl-ethanes

BAYER AG8 citations74

US4009148AFeb 22, 1977

High molecular weight polycarbonates of α,α,α,α',α',α'-hexakisaryl-1,3-and/or -1,4-dimethyl benzenes

BAYER AG10 citations74

US5037952AAug 6, 1991

Process for the production of high molecular weight, optionally branched polyarylene sulfides

BAYER AG9 citations73

US4639507AJan 27, 1987

Process for the isolation of polyarylene sulphide

BAYER AG8 citations73

US4327208AApr 27, 1982

Continuous process for the hydrolytic production of polycaprolactam having a low-monomer and low-dimer content

BAYER AG16 citations73

US4110540AAug 29, 1978

Process for the preparation of multinuclear phenols which are alkylated in the nucleus

BAYER AG14 citations73

US5114791AMay 19, 1992

Two-component injection molding with polyarylene sulfides

BAYER AG10 citations72

US4775738AOct 4, 1988

Process for the preparation of polyether-sulphones

BAYER AG9 citations72

US4771120ASep 13, 1988

Polyarylene sulphide capped with monophenol compound

BAYER AG10 citations72

US4460752AJul 17, 1984

Reacting polycarbonate resin with aryl chlorocarbonate to improve aging characteristics

BAYER AG17 citations70

US4920201AApr 24, 1990

Isolation of purified solid polyarylene sulfide directly from polymerization solution

BAYER AG2 citations63

US4873326AOct 10, 1989

Process for the preparation of N-alkylated caprolactams

BAYER AG3 citations63

US4743638AMay 10, 1988

Rapid crystallizing polyphenylene sulphide compositions

BAYER AG5 citations63

US4735977AApr 5, 1988

Rapidly crystallizing polyphenylene sulphide material containing sulfonic acid ester

BAYER AG3 citations63

US4728685AMar 1, 1988

Rapid-crystallizing polyphenylene sulphide compositions

BAYER AG4 citations63

US4367330AJan 4, 1983

Process for the preparation of aromatic polycarbonates by the phase boundary process

BAYER AG6 citations63

US4356129AOct 26, 1982

Process for the preparation of neutral phosphorous acid aryl esters

BAYER AG5 citations63

US4080371AMar 21, 1978

Process for the production of α, α, α, α', α',α'-hexakisaryl-1,3- and -1,4-dimethyl benzenes

BAYER AG2 citations63

US4070392AJan 24, 1978

Process for the production of O-derivatives of p-isopropenyl phenol

BAYER AG3 citations63

US4059638ANov 22, 1977

Trisphenol process

BAYER AG3 citations63

US3983146ASep 28, 1976

Process for the production of α, α, α, α', α',α', -hexakisaryl-1,3-and-1,4-dimethyl benzenes

BAYER AG2 citations63

US5306805AApr 26, 1994

Process for the preparation of polyarylene sulphides

BAYER AG2 citations62

US5066775ANov 19, 1991

Copoly arylene/alkylene sulfide

BAYER AG2 citations62

US5055551AOct 8, 1991

Process for the production of high molecular weight, optionally branched polyarylene sulfides having reduced content of extractable oligomers

BAYER AG5 citations62

US4290977ASep 22, 1981

Process for the production of neutral phosphoric acid esters

BAYER AG2 citations62

US4267127AMay 12, 1981

Process for the production of phosphoric acid triesters

BAYER AG6 citations62

US5247063ASep 21, 1993

Process for the purification of polyarylene sulphides

BAYER AG5 citations61

US4895930AJan 23, 1990

Process for isolating polyarylene sulphides

BAYER AG4 citations61

US4804689AFeb 14, 1989

Process for holding and foaming thermoplastic polyphenylene sulphide articles and the resultant products

BAYER AG2 citations61

US5120606AJun 9, 1992

Coatings based on polyarylene sulfides

BAYER AG2 citations60

US5234984AAug 10, 1993

Polyphenylene sulphide moulding compounds with improved electrical properties

BAYER AG5 citations58

US5066704ANov 19, 1991

Filled thermoplasts with low shrinkage anisotropy

BAYER AG1 citations52

TRESPER ERHARD

Patents

Process for the isolation of polyarylene sulphide from salts contained therein

Twin-screw machine with screws rotatable in the same direction

Elastomer-modified carbon-containing polyarylene sulfide blends

Thermoplastic mixtures of polypropylene with ethylene/vinyl acetate and ethylene/propylene copolymers

Rapid-crystallizing polyphenylene sulphide compositions

Process for the production of aromatic polyether ketones

Rapid-crystallizing polyphenylene sulphide compositions

Process for the preparation of flame-resistant polycarbonates

Polycarbonate mixtures which can be processed as thermoplastics

1,1,2-Tris-(o/p-hydroxyphenyl)-1-phenyl-ethanes

High molecular weight polycarbonates of α,α,α,α&#39;,α&#39;,α&#39;-hexakisaryl-1,3-and/or -1,4-dimethyl benzenes

Process for the production of high molecular weight, optionally branched polyarylene sulfides

Process for the isolation of polyarylene sulphide

Continuous process for the hydrolytic production of polycaprolactam having a low-monomer and low-dimer content

Process for the preparation of multinuclear phenols which are alkylated in the nucleus

Two-component injection molding with polyarylene sulfides

Process for the preparation of polyether-sulphones

Polyarylene sulphide capped with monophenol compound

Reacting polycarbonate resin with aryl chlorocarbonate to improve aging characteristics

Isolation of purified solid polyarylene sulfide directly from polymerization solution

Process for the preparation of N-alkylated caprolactams

Rapid crystallizing polyphenylene sulphide compositions

Rapidly crystallizing polyphenylene sulphide material containing sulfonic acid ester

Rapid-crystallizing polyphenylene sulphide compositions

Process for the preparation of aromatic polycarbonates by the phase boundary process

Process for the preparation of neutral phosphorous acid aryl esters

Process for the production of α, α, α, α&#39;, α&#39;,α&#39;-hexakisaryl-1,3- and -1,4-dimethyl benzenes

Process for the production of O-derivatives of p-isopropenyl phenol

Trisphenol process

Process for the production of α, α, α, α&#39;, α&#39;,α&#39;, -hexakisaryl-1,3-and-1,4-dimethyl benzenes

Process for the preparation of polyarylene sulphides

Copoly arylene/alkylene sulfide

Process for the production of high molecular weight, optionally branched polyarylene sulfides having reduced content of extractable oligomers

Process for the production of neutral phosphoric acid esters

Process for the production of phosphoric acid triesters

Process for the purification of polyarylene sulphides

Process for isolating polyarylene sulphides

Process for holding and foaming thermoplastic polyphenylene sulphide articles and the resultant products

Coatings based on polyarylene sulfides

Polyphenylene sulphide moulding compounds with improved electrical properties

Filled thermoplasts with low shrinkage anisotropy

High molecular weight polycarbonates of α,α,α,α',α',α'-hexakisaryl-1,3-and/or -1,4-dimethyl benzenes

Process for the production of α, α, α, α', α',α'-hexakisaryl-1,3- and -1,4-dimethyl benzenes

Process for the production of α, α, α, α', α',α', -hexakisaryl-1,3-and-1,4-dimethyl benzenes