Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1987-04-02
1989-08-15
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528172, 528174, 525534, C08L 2718
Patent
active
048576255
ABSTRACT:
Described herein are amorphous thermoplastic terpolymers containing units of the formula: ##STR1## wherein R is independently hydrogen, C.sub.1 to C.sub.6 alkyl, or C.sub.4 to C.sub.8 cycloalkyl, X' is independently ##STR2## wherein R.sub.1 and R.sub.2 are independently hydrogen or C.sub.1 to C.sub.9 alkyl; ##STR3## wherein R.sub.3 and R.sub.4 are independently hydrogen or C.sub.1 to C.sub.8 alkyl and a.sub.1 is an integer of 2 to 7; --S--, --O--, or ##STR4## a is an integer of 0 to 4 and n is independently an integer of 1 to 3. The units are attached to each other by an --0-- bond. These polymers have an excellent combination of mechanical properties. They display high notched izod impact values, high heat distortion temperatures and excellent environmental stress crack resistance.
REFERENCES:
patent: 4108837 (1978-08-01), Johnson et al.
patent: 4175175 (1979-11-01), Johnson et al.
patent: 4256862 (1981-03-01), Binsack et al.
patent: 4358569 (1982-11-01), Quinn et al.
Clendinning Robert A.
Maresca Louis M.
Matzner Markus
Schwab Thomas H.
Amoco Corporation
Kight John
Magidson William H.
Medhurst Ralph C.
Moore M. L.
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