Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1989-05-26
1991-05-07
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
528323, 548410, C08F 2606
Patent
active
050138057
ABSTRACT:
A novel class of cured products is derived from unsaturated polycylic ethers or esters comprising unsaturated ether or ester derivatives of a hydroxyaryl-substituted 1,6-diaza [4.4] spirodilactum having a hydroxyaryl substitute attached to each spiro ring nitrogen atom.
REFERENCES:
patent: 4100140 (1978-07-01), Zahir et al.
patent: 4468524 (1984-08-01), Zahir et al.
patent: 4886863 (1989-12-01), Wang
patent: 4921931 (1990-05-01), Wang
Schofer Joseph L.
Shell Oil Company
Walker Alex H.
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