US Patent No: 5,455,309

Number of patents in Portfolio can not be more than 2000

Methods of making and using thermoplastic block copolymers

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Abstract

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Methods of producing thermoplastic poly(amide-urethane) block copolymers having excellent flexibility at low temperatures are provided. The methods comprise reacting substantially linear polyamides, the polyamides being based on dimerized fatty acids and terminated by carboxyl and/or amino groups and aliphatic or cycloaliphatic polyethers and/or reaction products thereof with 2,3-epoxypropanol. The reaction products contain substantially no free isocyanate groups or epoxide groups. The invention also relates to the use of these products as adhesives and corrosion inhibitors for metallic and/or wooden materials.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIENDUESSELDORF1833

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Albini, Italo Pavia, IT 5 41
Gruber, Werner Cardaro, IT 38 326
Leoni, Roberto Cattolica, IT 14 102
Rossini, Angela Milan, IT 11 95
Wichelhaus, Juergen Wuppertal, DE 20 173
Wiemers, Norbert Monheim, DE 8 78

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Rhone-Poulenc Specialites Chimiques (1)
4,977,213 Moulding compositions comprised of semirigid, fatty acid copolyamides, elastomers and optionally conventional polyamides 47 1987

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
WILMINGTON TRUST FSB (6)
6,492,458 Polyalkyleneoxydiamine polyamides useful for formulating inks for phase-change jet printing 28 2000
6,399,713 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 33 2001
6,552,160 Ester-terminated poly(ester-amides) useful for formulating transparent gels in low polarity fluids 29 2001
6,870,011 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 21 2002
6,875,245 Ester-terminated poly(ester-amides) in personal care products 30 2003
7,745,546 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 6 2005
 
CRODA INTERNATIONAL PLC (1)
8,013,021 Hydrocarbon-terminated polyether-polyamide block copolymer and uses thereof 1 2009
 
Henkel Kommanditgesellschaft auf Aktien (1)
5,776,406 Moldings of polyurethane hotmelt adhesives 10 1997
 
MID-AMERICA COMMERCIALIZATION CORPORATION (1)
5,617,034 Signal improvement in the sensing of hydraulic cylinder piston position using electromagnetic waves 17 1995