Polymeric polyhyroxy polyether containing 1,6-diazaspiro-[4.4]no

Details Polymeric polyhyroxy polyether containing 1,6-diazaspiro-[4.4]no Polymeric polyhyroxy polyether containing 1,6-diazaspiro-[4.4]no

1988-09-16

1989-12-26

Anderson, Harold D.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528 89, 528 97, 528117, 528323, C08G 5929, C08G 6914

Patent

active

048899070

ABSTRACT:
Novel polymeric polyhydroxy polyethers containing moieties of 2,2-di(oxyphenyl)propane and a 1,6-diazaspiro[4.4] spirodilactam having oxyaryl substituents on each spiro ring nitrogen atom, which moieties are connected by 2-hydroxy-1,3-propylidene connecting groups, are characterized by relatively high glass transition temperatures.

REFERENCES:
patent: 4672102 (1987-06-01), Silvis et al.

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