P

Inventor

KOPP RICHARD

DE61 patents
⚠️ This page may combine multiple inventors who share the name “KOPP RICHARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BAYER AG

48 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
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

Heat-curing polyether-polyester-polyurethane ureas

BAYER AG26 citations92
US4797320AJan 10, 1989

Composite plastic moldings and a process for their production

BAYER AG50 citations92
US5574123ANov 12, 1996

Heat curable, one-component polyurethane reactive compositions

BAYER AG51 citations91
US4786655ANov 22, 1988

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
US5025039AJun 18, 1991

Process for the production of molded polyurethane foams and the molded foams obtained by this process

BAYER AG20 citations81
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
US4565648AJan 21, 1986

Use of carbonyl compounds, sulfonyl compounds and/or thioureas as stabilizers for solutions containing pyrocarbonic acid dialkyl esters and polyisocyanate preparations containing those esters

BAYER AG16 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
US4418159ANov 29, 1983

Process for the production of polyurethanes and a storable intermediate product for carrying out this process

BAYER AG7 citations74
US4352896AOct 5, 1982

Polyol mixtures containing reactive blowing agents and use thereof for the production of foamed polyurethanes

BAYER AG10 citations74
US6051632AApr 18, 2000

Free-flowing compression molding compositions and processes for their production and use

BAYER AG8 citations73
US4581388AApr 8, 1986

Process for the production of urethane-modified polyisocyanate using an oxyalkylated bisphenol

BAYER AG17 citations73
US4510269AApr 9, 1985

Process for the production of optionally cellular polyurethanes

BAYER AG14 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
US5109096AApr 28, 1992

Polyurethane-based one-component reactive adhesives

BAYER AG8 citations72
US4919878AApr 24, 1990

Process for the production of polyurethane-and/or polyurea-based moldings

BAYER AG18 citations72
US5104959AApr 14, 1992

Polyurethane-based reactive adhesives in which the isocyanate is stabilized by a polyether amine

BAYER AG17 citations71
US5064875ANov 12, 1991

Process for the preparation of heat-stable polyurethane urea elastomers

BAYER AG13 citations71
US4732957AMar 22, 1988

Polyurethane-based reactive mass and its use for the production of coatings

BAYER AG18 citations70
US4623686ANov 18, 1986

Storage stable compositions based on polyvinyl chloride plastisols and stabilized isocyanates

BAYER AG15 citations70
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
US4855504AAug 8, 1989

Process for producing higher molecular weight amino compounds having reduced monomeric amine content

BAYER AG3 citations63
US4851567AJul 25, 1989

N,N'-bis(5-isocyanatonaphthyl)urea, a process for its production, and its use

BAYER AG4 citations63
US4843107AJun 27, 1989

Process for the preparation of polyamines and their use for the preparation of polyurethanes

BAYER AG3 citations63
US4843108AJun 27, 1989

Process for the production of polyamines

BAYER AG6 citations63
US4835224AMay 30, 1989

Process for the preparation of polyamines and their use for the production of polyurethanes

BAYER AG3 citations63

KOPP RICHARD

1 patent

LANXESS DEUTSCHLAND GMBH

1 patent

Showing the top 50 of 61 patents by PatentIndex Score.