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

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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIENDUESSELDORF1832

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Albini, Italo Pavia, IT 5 41
Gruber, Werner Cardaro, IT 38 306
Leoni, Roberto Cattolica, IT 14 101
Rossini, Angela Milan, IT 10 89
Wichelhaus, Juergen Wuppertal, DE 18 163
Wiemers, Norbert Monheim, DE 8 78

Cited Art

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 45 1987

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
WILMINGTON TRUST FSB (6)
6,492,458 Polyalkyleneoxydiamine polyamides useful for formulating inks for phase-change jet printing 23 2000
6,399,713 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 27 2001
6,552,160 Ester-terminated poly(ester-amides) useful for formulating transparent gels in low polarity fluids 26 2001
6,870,011 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 18 2002
6,875,245 Ester-terminated poly(ester-amides) in personal care products 28 2003
7,745,546 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 5 2005
 
ARIZONA CHEMICAL COMPANY (1)
8,013,021 Hydrocarbon-terminated polyether-polyamide block copolymer and uses thereof 0 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 15 1995