Inventor
WIEDERMANN ROLF
DE21 patents
⚠️ This page may combine multiple inventors who share the name “WIEDERMANN ROLF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
20 patentsUS4246365AJan 20, 1981
Process for the production of plastics containing isocyanurate groups and urethane groups
BAYER AG36 citations92
US4575520AMar 11, 1986
Rigid, closed-cell, flame-resistant polyurethane foams
BAYER AG27 citations90
US4404294ASep 13, 1983
Nonflammable light foams containing urea and urethane groups in which a mono- and/or oligo-saccharide dissolved in water is reacted with a polyisocyanate in the presence of a polyol, a catalyst and a flameproofing agent
BAYER AG20 citations82
US4621104ANov 4, 1986
Process for the production of liquid bromine-containing alkoxylation products
BAYER AG7 citations74
US4310633AJan 12, 1982
Hexahydrotriazine carboxylates and the use thereof as catalysts in the production of polyisocyanurate plastics
BAYER AG9 citations74
US5426126AJun 20, 1995
Liquid, light-colored polyisocyanate mixtures and a process for their production
BAYER AG10 citations73
US5028636AJul 2, 1991
Liquid polyisocyanate mixtures, a process for their preparation, and their use in the preparation of polyurethane foams
BAYER AG12 citations73
US4128532ADec 5, 1978
Polyetheresters which contain hydroxyl groups and the use thereof in the production of flame resistant synthetic resins
BAYER AG14 citations73
US4046742ASep 6, 1977
Compositions containing hydroxyl groups and their use for the production of flameproof plastics
BAYER AG12 citations73
US5223549AJun 29, 1993
Process for the production of rigid polyurethane foams
BAYER AG12 citations72
US5084485AJan 28, 1992
Process for the production of rigid foams containing urethane and predominantly isocyanurate groups and their use as insulating materials
BAYER AG13 citations72
US4931481AJun 5, 1990
Process for the production of foams based on aromatic isocyanates using MG(OH)2 and the foams produced thereby
BAYER AG6 citations71
US4767795AAug 30, 1988
Polyol composition and a process for the preparation of flame-resistant polyurethane foams therefrom
BAYER AG18 citations71
US4681903AJul 21, 1987
Polyester polyols, a process for their production and their use in the isocyanate polyaddition process
BAYER AG14 citations69
US4235976ANov 25, 1980
Use of phosphonates as trimerization catalysts for the production of polyisocyanurate synthetic resins
BAYER AG4 citations63
US4931480AJun 5, 1990
Process for the preparation of polyurethane foams
BAYER AG3 citations62
US4623672ANov 18, 1986
Isocyanate addition products and a process for their production
BAYER AG4 citations62
US5367000ANov 22, 1994
Process for the production of rigid foams containing urethane and isocyanurate groups
BAYER AG5 citations61
US3941726AMar 2, 1976
Polyguanidine foams
BAYER AG5 citations60
US4260754AApr 7, 1981
Hexahydrotriazine carboxylates and the use thereof as catalysts in the production of polyisocyanurate plastics
BAYER AG1 citations52