Process for the manufacture of crystalline, crosslinked, elastom

Details Process for the manufacture of crystalline, crosslinked, elastom Process for the manufacture of crystalline, crosslinked, elastom

1977-08-29

1978-07-18

Lieberman, Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 22D, 260835, 528297, C08L 9100, C08L 6300

Patent

active

041014766

ABSTRACT:
The invention relates to the manufacture of crystalline epoxide resins which exhibit a marked crystallite melt temperature. The formation of the crystallites is caused by molecule blocks which are derived from polyester-polycarboxylic acids, which contain aliphatic radicals in the chain. According to the invention, two aliphatic polyester-polycarboxylic acids (A and B) are reacted under very specific quantitative conditions with epoxide compounds which contain at least 2 epoxide groups and optionally with curing agents. The polyester-polycarboxylic acids A are purely n-aliphatic in character, whereas the polyester-polycarboxylic acids B are not. They contain radicals which are derived from dimerized mono- unsaturated or di- unsaturated fatty acids during the ester formation. These crystalline synthetic resins are particularly suitable for use as material for absorbing solar energy in solar energy collectors.

REFERENCES:
patent: 3278636 (1968-10-01), Wynstra
patent: 3557035 (1971-01-01), Schmid
patent: 3557036 (1971-01-01), Schmid
patent: 3641194 (1972-02-01), Schmid
patent: 3642674 (1972-02-01), Schmid
patent: 3642938 (1972-02-01), Schmid
patent: 3655817 (1972-04-01), Lohse
patent: 3739041 (1973-06-01), Schmid
patent: 3816365 (1974-06-01), Schmid
patent: 3937751 (1976-02-01), Schmid
patent: 3979477 (1976-09-01), Schmid
patent: 3985825 (1976-10-01), Schmid

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