Inventor

GROEGLER GERHARD

DE69 patents

Patents

50 patents

US5143987ASep 1, 1992

Polyurethane reactive adhesive compounds containing finely dispersed polymers

BAYER AG69 citations96

US4595445AJun 17, 1986

Adhesive joining of surfaces using thermosetting polyurethane urea reactive adhesive compositions

BAYER AG66 citations96

US4483974ANov 20, 1984

Process for the production of stabilized polyisocyanates, the polyisocyanates so-stabilized and their use in the production of polyurethanes

BAYER AG75 citations96

US4263408AApr 21, 1981

Process for the production of molded foams

BAYER AG67 citations96

US4667008AMay 19, 1987

Process for the production of solid polyisocyanates of retarded reactivity, polymer-coated, finely divided polyisocyanates and their use

BAYER AG31 citations93

US4663415AMay 5, 1987

Process for the preparation of stabilized polyamines, stabilized polyamines with retarded reactivity and their use for polyurethane production

BAYER AG36 citations93

US4546165AOct 8, 1985

Process for the production of stabilized polyisocyanates of retarded reactivity and their use in the production of polyurethanes

BAYER AG35 citations93

US4384102AMay 17, 1983

Process for the preparation of compounds having s-triazine units and epoxide groups

BAYER AG36 citations93

US5091497AFeb 25, 1992

Process for the preparation of polyurethanes containing uretdione rings formed in the presence of a bismuth salt of an organic carboxylic acid

BAYER AG21 citations82

US4757105AJul 12, 1988

Process for the production of finely divided polyisocyanates containing urea groups

BAYER AG24 citations82

US4569982AFeb 11, 1986

Process for the production of polyurea-elastomers and corresponding elastomers having an idealized segment structure

BAYER AG22 citations82

US4540720ASep 10, 1985

Polyamines, a process for the production of polyamines and their use in the production of polyurethanes

BAYER AG16 citations82

US4294934AOct 13, 1981

Process for the production of elastic, optionally cellular, polyurethane ureas

BAYER AG21 citations82

US4442280AApr 10, 1984

Heterogeneous systems of polyol/diphenyl methane uret dione diisocyanates and a process for their production

BAYER AG25 citations78

US5183876AFeb 2, 1993

Urea group-containing polyisocyanates modified with long chain compounds and a process for their preparation

BAYER AG6 citations74

US5077339ADec 31, 1991

Heat-curing reactive powders based on polyurethanes

BAYER AG10 citations74

US4894429AJan 16, 1990

Process for the preparation of polyurethanes containing uretdione rings

BAYER AG14 citations74

US4882411ANov 21, 1989

Process for the production of cold-setting polyurethane urea elastomers

BAYER AG13 citations74

US4847321AJul 11, 1989

Process for the production of thermosetting one-component polyurethane-polyurea systems

BAYER AG8 citations74

US4801623AJan 31, 1989

Process for the production of a thixotropic agent, especially for storable reactive polyurethane systems

BAYER AG12 citations74

US4734532AMar 29, 1988

Process for the preparation of 4,4'-dinitrodibenzyls

BAYER AG8 citations74

US4716182ADec 29, 1987

Cold setting compositions, a process for the production thereof and the use thereof for polyurethane production

BAYER AG18 citations74

US4619985AOct 28, 1986

Process for the production of deactivated suspensions of finely-divided polyisocyanates in relatively high molecular weight compounds, deactivated suspensions and use thereof for the production of polyurethanes

BAYER AG13 citations74

US4605756AAug 12, 1986

Process for the in situ production of urea group-containing isocyanates in polyols

BAYER AG5 citations74

US4587275AMay 6, 1986

Process for the preparation of polyurethane elastomers

BAYER AG10 citations74

US4521338AJun 4, 1985

Process for the preparation of low molecular weight 4,4'-diphenylmethane-uretdione-diisocyanates

BAYER AG7 citations74

US4520186AMay 28, 1985

Polyurethanes and polyurethane-ureas based on aromatic uret dione diamine adducts

BAYER AG11 citations74

US4472568ASep 18, 1984

Process for the preparation of polyamines from N-monoaryl-N',N'-dialkyl urea compounds and their use for the synthesis of polyurethanes

BAYER AG12 citations74

US4368278AJan 11, 1983

Process for the production of polyurethanes using cyclic N-hydroxyalkyl-substituted compounds containing amidine groups as catalysts

BAYER AG13 citations74

US4350781ASep 21, 1982

Process for the preparation of polymer precursors containing oxazolin-2-one rings

BAYER AG12 citations74

US4255570AMar 10, 1981

Polyisocyanate reaction products of diisocyanates and s-triazine derivatives containing amino groups

BAYER AG8 citations74

US4438250AMar 20, 1984

Suspensions of isocyanato ureas in isocyanate prepolymers, a process for their production and their use in the production of high molecular-weight polyurethane plastics

BAYER AG9 citations73

US4390640AJun 28, 1983

Process for the production of optionally-foamed polyurethanes

BAYER AG17 citations73

US4377644AMar 22, 1983

Mixed anhydrides of isocyanates and carboxylic acids, mixtures thereof with carboxylic acids, and the use thereof as blowing agents for the production of cellular plastics

BAYER AG7 citations73

US4336180AJun 22, 1982

Solvent-free polyurethanes with fibrous reinforcing agents

BAYER AG15 citations73

US4263423AApr 21, 1981

Process for the preparation of polyurethane casting elastomers

BAYER AG13 citations73

US4254229AMar 3, 1981

Polyurethane plastics containing thio groups

BAYER AG16 citations73

US5109096AApr 28, 1992

Polyurethane-based one-component reactive adhesives

BAYER AG8 citations72

US5064875ANov 12, 1991

Process for the preparation of heat-stable polyurethane urea elastomers

BAYER AG13 citations71

US4405752ASep 20, 1983

Process for producing fiber-reinforced molded products

BAYER AG16 citations71

US4623686ANov 18, 1986

Storage stable compositions based on polyvinyl chloride plastisols and stabilized isocyanates

BAYER AG15 citations70

US4330656AMay 18, 1982

Activated isocyanate prepolymers and a process for the production of elastomeric polyurethane resins

BAYER AG16 citations70

US4001232AJan 4, 1977

Process for preparing 1-substituted 2-methyl-tetrahydropyrimidines

BAYER AG11 citations70

US5283364AFeb 1, 1994

Hydrolysis process for polyamines

BAYER AG4 citations63

US5091582AFeb 25, 1992

Process for the preparation of aromatic polyamines

BAYER AG6 citations63

US4994611AFeb 19, 1991

Process for the production of N,N'-bis-(3-aminophenyl)-ureas

BAYER AG2 citations63

US4882361ANov 21, 1989

Process for the production of polyurethane urea elastomers

BAYER AG6 citations63

Showing the top 50 of 69 patents by PatentIndex Score.

GROEGLER GERHARD

Patents

Polyurethane reactive adhesive compounds containing finely dispersed polymers

Adhesive joining of surfaces using thermosetting polyurethane urea reactive adhesive compositions

Process for the production of stabilized polyisocyanates, the polyisocyanates so-stabilized and their use in the production of polyurethanes

Process for the production of molded foams

Process for the production of solid polyisocyanates of retarded reactivity, polymer-coated, finely divided polyisocyanates and their use

Process for the preparation of stabilized polyamines, stabilized polyamines with retarded reactivity and their use for polyurethane production

Process for the production of stabilized polyisocyanates of retarded reactivity and their use in the production of polyurethanes

Process for the preparation of compounds having s-triazine units and epoxide groups

Heat-curing polyether-polyester-polyurethane ureas

Composite plastic moldings and a process for their production

Heat curable, one-component polyurethane reactive compositions

Process for the preparation of polyurethanes containing uretdione rings formed in the presence of a bismuth salt of an organic carboxylic acid

Process for the production of finely divided polyisocyanates containing urea groups

Process for the production of polyurea-elastomers and corresponding elastomers having an idealized segment structure

Polyamines, a process for the production of polyamines and their use in the production of polyurethanes

Process for the production of elastic, optionally cellular, polyurethane ureas

Heterogeneous systems of polyol/diphenyl methane uret dione diisocyanates and a process for their production

Urea group-containing polyisocyanates modified with long chain compounds and a process for their preparation

Heat-curing reactive powders based on polyurethanes

Process for the preparation of polyurethanes containing uretdione rings

Process for the production of cold-setting polyurethane urea elastomers

Process for the production of thermosetting one-component polyurethane-polyurea systems

Process for the production of a thixotropic agent, especially for storable reactive polyurethane systems

Process for the preparation of 4,4&#39;-dinitrodibenzyls

Cold setting compositions, a process for the production thereof and the use thereof for polyurethane production

Process for the production of deactivated suspensions of finely-divided polyisocyanates in relatively high molecular weight compounds, deactivated suspensions and use thereof for the production of polyurethanes

Process for the in situ production of urea group-containing isocyanates in polyols

Process for the preparation of polyurethane elastomers

Process for the preparation of low molecular weight 4,4&#39;-diphenylmethane-uretdione-diisocyanates

Polyurethanes and polyurethane-ureas based on aromatic uret dione diamine adducts

Process for the preparation of polyamines from N-monoaryl-N&#39;,N&#39;-dialkyl urea compounds and their use for the synthesis of polyurethanes

Process for the production of polyurethanes using cyclic N-hydroxyalkyl-substituted compounds containing amidine groups as catalysts

Process for the preparation of polymer precursors containing oxazolin-2-one rings

Polyisocyanate reaction products of diisocyanates and s-triazine derivatives containing amino groups

Suspensions of isocyanato ureas in isocyanate prepolymers, a process for their production and their use in the production of high molecular-weight polyurethane plastics

Process for the production of optionally-foamed polyurethanes

Mixed anhydrides of isocyanates and carboxylic acids, mixtures thereof with carboxylic acids, and the use thereof as blowing agents for the production of cellular plastics

Solvent-free polyurethanes with fibrous reinforcing agents

Process for the preparation of polyurethane casting elastomers

Polyurethane plastics containing thio groups

Polyurethane-based one-component reactive adhesives

Process for the preparation of heat-stable polyurethane urea elastomers

Process for producing fiber-reinforced molded products

Storage stable compositions based on polyvinyl chloride plastisols and stabilized isocyanates

Activated isocyanate prepolymers and a process for the production of elastomeric polyurethane resins

Process for preparing 1-substituted 2-methyl-tetrahydropyrimidines

Hydrolysis process for polyamines

Process for the preparation of aromatic polyamines

Process for the production of N,N&#39;-bis-(3-aminophenyl)-ureas

Process for the production of polyurethane urea elastomers

Process for the preparation of 4,4'-dinitrodibenzyls

Process for the preparation of low molecular weight 4,4'-diphenylmethane-uretdione-diisocyanates

Process for the preparation of polyamines from N-monoaryl-N',N'-dialkyl urea compounds and their use for the synthesis of polyurethanes

Process for the production of N,N'-bis-(3-aminophenyl)-ureas