Methods of making and using thermoplastic block copolymers

Details Methods of making and using thermoplastic block copolymers Methods of making and using thermoplastic block copolymers

1990-08-03

1995-10-03

Lesmes, George F.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525423, 525424, C08G 6948

Patent

active

054553091

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.

REFERENCES:
patent: 3475383 (1969-10-01), Stewart et al.
patent: 4977213 (1990-12-01), Giroud-Abel et al.
Encyclopedia of Polymer Science and Engineering, vol. 16, p. 833.

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