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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Importance

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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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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HENKEL KGAADUESSELDORF272

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Albini, Italo Pavia, IT 5 42
Gruber, Werner Korschenbroich, DE 37 356
Leoni, Roberto Mailand, IT 14 110
Rossini, Angela Mailand, IT 10 109
Wichelhaus, Juergen Wuppertal, DE 18 191
Wiemers, Norbert Monheim, DE 8 84

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Rhone-Pulenc Specialites Chimique (1)
* 4,977,213 Moulding compositions comprised of semirigid, fatty acid copolyamides, elastomers and optionally conventional polyamides 49 1987
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
HENKEL AG & CO. KGAA (1)
* 2006/0084,755 Reactive hot melt adhesive with block acrylic copolymer 2 2004
 
WILMINGTON TRUST FSB (8)
6,492,458 Polyalkyleneoxydiamine polyamides useful for formulating inks for phase-change jet printing 33 2000
6,399,713 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 38 2001
6,552,160 Ester-terminated poly(ester-amides) useful for formulating transparent gels in low polarity fluids 36 2001
6,870,011 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 25 2002
* 2003/0065,084 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 5 2002
6,875,245 Ester-terminated poly(ester-amides) in personal care products 36 2003
7,745,546 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 6 2005
* 2005/0165,212 Hydrocarbon-terminated polyether-polyamide block copolymers and uses thereof 1 2005
 
HENKEL KGAA (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 18 1995
 
DSM IP ASSETS B.V. (2)
* 9,120,895 Flexible polymer 0 2010
* 2012/0123,086 FLEXIBLE POLYMER 0 2010
 
CRODA INTERNATIONAL PLC (1)
8,013,021 Hydrocarbon-terminated polyether-polyamide block copolymer and uses thereof 1 2009
* Cited By Examiner