Flock adhesive

Details Flock adhesive Flock adhesive

1990-11-26

1993-02-09

Seidleck, James J.

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

Synthetic resins

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

525129, 528 59, 528 75, 528 76, 528905, C08L 2328, C08L 7508, C08G 1867, C08G 1828

Patent

active

051854023

ABSTRACT:
An adhesive composition which contains two distinct polyurethane prepolymers and a halogenated polyolefin and which is useful for bonding flock fibers to a thermoplastic or an elastomeric substrate. The first polyurethane prepolymer is derived from poly(alkylene oxide) polyols while the second polyurethane prepolymer is derived from poly(alkylene oxide) polyols and a dimer acid polyol. Both of the polyurethane prepolymers are preferably derived from a mixture of poly(alkylene oxide) polyols having different molecular weights.

REFERENCES:
patent: 3349049 (1967-10-01), Seiwert et al.
patent: 3882191 (1975-05-01), Balatoni et al.
patent: 4053440 (1977-10-01), Bonnet et al.
patent: 4535121 (1985-08-01), Ozelli et al.
patent: 4835226 (1989-05-01), Warren et al.
patent: 4892756 (1990-01-01), Warren et al.
patent: 4914149 (1990-04-01), Fleming et al.
patent: 5064928 (1991-11-01), Kase et al.
Saunders & Frisch "Polyurethanes Chemistry and Technology Part II." Interscience Publishers (1964). pp. 355-358.

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