Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1982-03-15
1983-09-06
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
C08G 1880
Patent
active
044030843
ABSTRACT:
A crystalline grindable end-blocked prepolymer useful in providing a polyurethane elastomer having a 100% modulus less than approximately 250 psi, tensile of 3500 to 6500 psi, and less than 30% initial tensile set, said prepolymer being the product of reacting an organic polyisocyanate, a long chain crystalline diol having an average molecular weight of approximately 500 to 5000, a polyhydroxy cross-linking agent, and an end-blocking agent.
REFERENCES:
patent: 2621166 (1952-12-01), Schmidt et al.
patent: 2625535 (1953-01-01), Mastin et al.
patent: 2770612 (1956-11-01), Schollenberger
patent: 2899411 (1959-08-01), Schollenberger
patent: 2968575 (1961-01-01), Mallonee
patent: 2998403 (1961-08-01), Muller et al.
patent: 3591561 (1971-07-01), Kazama
patent: 3684770 (1972-08-01), Meisert et al.
patent: 3689443 (1972-09-01), Fensch
patent: 3804812 (1974-04-01), Koroscil
patent: 3846378 (1974-11-01), Griswold
patent: 3857818 (1974-12-01), Frizelle
patent: 3917741 (1975-11-01), McGarr
patent: 4131604 (1978-12-01), Szycher
patent: 4252923 (1981-02-01), Konig et al.
patent: 4284745 (1981-08-01), Meyer et al.
Polymers in Medicine & Surgery, Kronenthal, et al., Plenum Press, vol. 8, pp. 45 etc.
McGary, Jr. Charles W.
Pascarella Vincent J.
Rhodes Delmer R.
Warner-Lambert & Company
Welsh Maurice J.
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