Inventor

PEFFLEY RICHARD D

US13 patents

Patents

13 patents

US4642320AFeb 10, 1987

Reaction injection molded polyureas employing high molecular weight amine-terminated polyethers

DOW CHEMICAL CO69 citations95

US4530941AJul 23, 1985

Reaction injection molded polyurethanes employing high molecular weight polyols

DOW CHEMICAL CO124 citations95

US4686242AAug 11, 1987

Polyurea polymers prepared from urea containing prepolymers

DOW CHEMICAL CO66 citations93

US4845133AJul 4, 1989

Flexible polyurea or polyurea-polyurethane foams prepared from high equivalent weight amine-terminated compounds

DOW CHEMICAL CO41 citations92

US5106884AApr 21, 1992

Flexible polyurea foams having controlled load bearing qualities

DOW CHEMICAL CO46 citations90

US4485031ANov 27, 1984

Compatible mixtures of aminated polyether polyols and low molecular weight glycols

DOW CHEMICAL CO22 citations82

US4485032ANov 27, 1984

Compatible polyol blends

DOW CHEMICAL CO20 citations82

US4701476AOct 20, 1987

Polyurethane elastomers prepared from high molecular weight prepolymers

DOW CHEMICAL CO20 citations75

US5008325AApr 16, 1991

Polyurethane-urea resins with incorporated hydrophobic microparticle fillers

DOW CHEMICAL CO15 citations73

US4521330AJun 4, 1985

Non-aqueous urea-polyether gel compositions and a method for their preparation

DOW CHEMICAL CO9 citations73

US4946872AAug 7, 1990

Polyisocyanate prepolymers prepared from rigid polyaromatic precursor materials, and polyurethanes prepared therefrom

DOW CHEMICAL CO8 citations71

US4894403AJan 16, 1990

Polyisocyanate compositions containing rigid compounds or polymers, and polyurethanes prepared therefrom

DOW CHEMICAL CO6 citations71

US4689356AAug 25, 1987

Polyurethane elastomers prepared in a two-step process using mixtures of chain extenders

DOW CHEMICAL CO17 citations68