Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-04-16
1977-01-04
Derrington, James H.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 40R, 260 4214, 260 4585T, 260873, C08K 904
Patent
active
RE0290998
ABSTRACT:
Polyester forming reactants of low volatility including an organic acid or anhydride such as trimellitic anhydride, and a polyhydric alcohol, such as dipentaerythritol or pentaterythritol, are admixed at a temperature above 400.degree. F. with partially stabilized polypropylene and asbestos filler to provide a heat stabilized, asbestos-filled polypropylene composition.
REFERENCES:
patent: 3180848 (1965-04-01), Thompson
patent: 3219622 (1965-11-01), Luciani et al.
patent: 3553158 (1971-10-01), Gilfillan
patent: 3640929 (1972-02-01), Darling
patent: 3649592 (1972-03-01), Bernard et al.
Kietzman John H.
Tocci Mario P.
Derrington James H.
Johns-Manville Corporation
Kelly Joseph J.
Krone Robert M.
McClain James W.
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