P

Inventor

HEFNER JR ROBERT E

US216 patents
⚠️ This page may combine multiple inventors who share the name “HEFNER JR ROBERT E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DOW CHEMICAL CO

46 patents
US5442039AAug 15, 1995

Mesogenic polycyanates and thermosets thereof

DOW CHEMICAL CO134 citations98
US5428125AJun 27, 1995

Mesogenic polycyanates and thermosets thereof

DOW CHEMICAL CO91 citations96
US5164464ANov 17, 1992

Vinyl ester resins containing mesogenic/rigid rodlike moieties

DOW CHEMICAL CO62 citations96
US5066750ANov 19, 1991

Vinyl ester resins containing mesogenic/rigid rodlike moieties

DOW CHEMICAL CO51 citations96
US4962163AOct 9, 1990

Vinyl ester resins containing mesogenic/rigid rodlike moieties

DOW CHEMICAL CO81 citations96
US4477629AOct 16, 1984

Cyanate-containing polymers

DOW CHEMICAL CO65 citations96
US4618658AOct 21, 1986

Polymer modified epoxy resin compositions

DOW CHEMICAL CO115 citations95
US5510431AApr 23, 1996

Cure controlled catalyzed mixtures of epoxy resins and curing agents containing mesogenic moieties

DOW CHEMICAL CO46 citations93
US5206321AApr 27, 1993

Polycyanates containing mesogenic moieties as lateral substituents

DOW CHEMICAL CO21 citations93
US5189117AFeb 23, 1993

Polyurethane from epoxy compound adduct

DOW CHEMICAL CO31 citations93
US4546131AOct 8, 1985

Polymer modified cyanate mixture and epoxy resins thereof

DOW CHEMICAL CO30 citations93
US4544704AOct 1, 1985

Polymeric cyanate compositions

DOW CHEMICAL CO28 citations93
US4540829ASep 10, 1985

Allylated di or polycyclopentadiene diphenols

DOW CHEMICAL CO31 citations93
US4486582ADec 4, 1984

Reactive monomers and thermosettable compositions containing same

DOW CHEMICAL CO31 citations93
US4443580AApr 17, 1984

DCPD Modified polyester physical property improvement

DOW CHEMICAL CO27 citations93
US5736620AApr 7, 1998

Glycidyl ether compounds containing mesogenic moieties

DOW CHEMICAL CO35 citations92
US5686551ANov 11, 1997

Hydroxy ether polymers as thermoplastic barrier resins

DOW CHEMICAL CO31 citations92
US5387657AFeb 7, 1995

Epoxy resins containing thiadiazole and/or oxadiazole moieties

DOW CHEMICAL CO40 citations92
US5296570AMar 22, 1994

Curable mixtures of mesogenic epoxy resins and mesogenic polyamines and cured compositions

DOW CHEMICAL CO21 citations92
US5290887AMar 1, 1994

Epoxy resins containing thiadiazole and/or oxadiazole moieties

DOW CHEMICAL CO32 citations92
US5024785AJun 18, 1991

Liquid crystal/rigid rodlike polymer modified epoxy/vinyl ester resins

DOW CHEMICAL CO22 citations92
US4474619AOct 2, 1984

Conditioner for flotation of coal

DOW CHEMICAL CO32 citations92
US5458929AOct 17, 1995

Cure controlled catalyzed mixtures of epoxy resins and curing agents containing mesogenic moieties, B-staged and cured products therefrom

DOW CHEMICAL CO47 citations91
US4410686AOct 18, 1983

Norbornyl modified polyesteramides and process for preparing same

DOW CHEMICAL CO33 citations90
US5637669AJun 10, 1997

Epoxy resins containing discotic mesogenic moieties

DOW CHEMICAL CO21 citations84
US5235008AAug 10, 1993

Polymer modified adducts of epoxy resins and active hydrogen containing compounds containing mesogenic moieties

DOW CHEMICAL CO20 citations82
US5208306AMay 4, 1993

Mesogenic alkenyl functional maleimides and thermosets thereof

DOW CHEMICAL CO15 citations82
US4753982AJun 28, 1988

Vinyl ester and norbornyl terminated unsaturated polyester (polyesteramide) blends

DOW CHEMICAL CO21 citations82
US4701257AOct 20, 1987

Fatty esters of alkanolamine hydroxyalkylates as oxidized coal conditioner in froth flotation process

DOW CHEMICAL CO24 citations82
US4683276AJul 28, 1987

Cyanate functional maleimide thermosetting composition

DOW CHEMICAL CO19 citations82
US4680378AJul 14, 1987

Cyanate functional maleimide and polyamine copolymer

DOW CHEMICAL CO20 citations82
US4581425AApr 8, 1986

Thermosettable resin composition containing alkenyl phenyl cyanate

DOW CHEMICAL CO23 citations82
US4558115ADec 10, 1985

Thermosettable resin compositions containing a polyepoxide and an alkenyl phenyl cyanate

DOW CHEMICAL CO21 citations82
US4408033AOct 4, 1983

Polyurethanes prepared from polyisocyanate, polyol and phosphonopolyester oligomers

DOW CHEMICAL CO26 citations82
US4360647ANov 23, 1982

Phosphonate terminated dicyclopentadiene modified polyesters

DOW CHEMICAL CO25 citations82
US4278533AJul 14, 1981

Conditioner for flotation of oxidized coal

DOW CHEMICAL CO25 citations82
US4253944AMar 3, 1981

Conditioner for flotation of oxidized coal

DOW CHEMICAL CO22 citations82
US4555563ANov 26, 1985

Imide functional polyphenols; thermosettable compositions containing same and cured products therefrom

DOW CHEMICAL CO24 citations81
US4782124ANov 1, 1988

Polycarbonate modified epoxy resins

DOW CHEMICAL CO19 citations80
US6353079B1Mar 5, 2002

Epoxy resin and epoxy di (meth)acrylate from hydroxyaliphatic bisphenol

DOW CHEMICAL CO10 citations74
US5612479AMar 18, 1997

Polyphenols containing mesogenic moieties as lateral substituents

DOW CHEMICAL CO5 citations74
US5602211AFeb 11, 1997

Adducts of epoxy resins and active hydrogen containing compounds containing mesogenic moieties

DOW CHEMICAL CO10 citations74
US5491201AFeb 13, 1996

Mesogenic cyclic imino ether-containing compositions and polymerization products thereof

DOW CHEMICAL CO12 citations74
US5486580AJan 23, 1996

Mesogenic novolacs and resins

DOW CHEMICAL CO11 citations74
US5470946ANov 28, 1995

Products resulting from polymerizing or curing polycyanates containing mesogenic moieties as lateral substituents

DOW CHEMICAL CO4 citations74
US5464912ANov 7, 1995

Amines from nitro group terminated mesogenic epoxy resin adducts with reduced hydroxyl group functionality

DOW CHEMICAL CO8 citations74

ROHM & HAAS ELECT MAT

2 patents

HEFNER JR ROBERT E

1 patent

DOW GLOBAL TECHNOLOGIES INC

1 patent

Showing the top 50 of 216 patents by PatentIndex Score.