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
1989-08-28
1993-10-12
Michl, Paul R.
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...
528 59, 528 76, 528 77, 523115, 523116, C08G 1810
Patent
active
052526976
ABSTRACT:
Method, composition and structure are provided for tooth restorations comprising a urethane polymer having a crystalline polymer phase distributed in a noncrystalline polymer phase by virtue of differential reactivity of the urethane forming reagents.
REFERENCES:
patent: 4281892 (1981-08-01), Colpitts et al.
patent: 4476292 (1984-10-01), Ham et al.
patent: 4677157 (1987-06-01), Jacobs
Jacobs Richard
Porteous Don D.
Bachand Louis J.
DeWitt LaVonda
Michl Paul R.
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