Inventor
HESS HEINRICH
DE47 patents
⚠️ This page may combine multiple inventors who share the name “HESS HEINRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
34 patentsUS5143987ASep 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
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
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
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
US4520186AMay 28, 1985
Polyurethanes and polyurethane-ureas based on aromatic uret dione diamine adducts
BAYER AG11 citations74
US5109096AApr 28, 1992
Polyurethane-based one-component reactive adhesives
BAYER AG8 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
US4623686ANov 18, 1986
Storage stable compositions based on polyvinyl chloride plastisols and stabilized isocyanates
BAYER AG15 citations70
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
US4720545AJan 19, 1988
Process for the preparation of complexes of one mol of dimerized or low-oligodimerized 4,4'-diisocyanatodiphenylmethane and two to three mol of 4,4'-diisocyanatodiphenylmethane, corresponding complexes, and their use for polyurethane production
BAYER AG6 citations63
US4680367AJul 14, 1987
Process for the production of urea group-containing polyisocyanates
BAYER AG5 citations63
US5159046AOct 27, 1992
Process for the preparation of highly elastic plastics
BAYER AG3 citations62
US5100998AMar 31, 1992
Process for improving the flowability of dimerized 2,4-tolylenediisocyanate
BAYER AG3 citations58
US4882409ANov 21, 1989
Process for the production of heat-resistant polyurethane urea elastomers
BAYER AG0 citations52
US4766239AAug 23, 1988
Process for the in situ production of urea group-containing isocyanates in polyols, dispersions or solutions resulting therefrom and use thereof
BAYER AG0 citations52