Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1978-07-31
1980-12-02
Lieberman, Paul
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525403, 525407, 525454, 528 73, C08L 6300
Patent
active
042372500
ABSTRACT:
The instant invention is directed to polyurethanes containing sulfonic acid ester groups wherein arylsulfonic acid alkyl ester groups are attached to aromatic nuclei as chain members and to their method of preparation. The process is characterized by reacting at from 0.degree. to 190.degree. C.
REFERENCES:
patent: 3148167 (1964-09-01), Keplinger
patent: 3238273 (1966-03-01), Hampson
patent: 3636133 (1972-01-01), Hawkins
patent: 3959329 (1976-05-01), Dieterich et al.
patent: 4036906 (1977-07-01), Finelli
patent: 4038232 (1977-07-01), Bosso
patent: 4174434 (1979-11-01), Dieterich
Bayer Aktiengesellschaft
Gil Joseph C.
Harsh Gene
Lieberman Paul
Olson R. Brent
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