Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1979-02-02
1980-01-08
Schain, Howard E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 319UA, 260 19N, 260 237M, 525506, 525508, C08G 830, C08G 832
Patent
active
041826973
ABSTRACT:
The invention relates to a process for the preparation of boron-containing phenol/formaldehyde resins be reacting diphenylol alkane novolaks with unsaturated fatty acids or fatty acid esters and boron compounds, characterized in that diphenylol alkane novolaks having a molecular weight of from 400 to 1600 are reacted with from 15 to 35 parts by weight of an unsaturated fatty acid or its esters, accompanied by the azeotropic removal of water, and then with from 20 to 100 parts by weight of a boric acid trialkyl ester containing from 1 to 4 carbon atoms per alkyl group or with 14 to 72 parts by weight of a boric acid alkyl ester anhydride of the general formula (RO).sub.2 B--O--B--(OR).sub.2 with 1 to 4 carbon atoms per alkyl group R or with from 10 to 50 parts by weight, preferably from 15 to 20 parts by weight of boron trioxide or with from 18 to 90 parts by weight, preferably from 25 to 36 parts by weight of boric acid in the presence of a C.sub.1 -C.sub.4 alcohol.
REFERENCES:
patent: 2022827 (1935-12-01), Ruben
patent: 3487045 (1969-12-01), Shepard et al.
patent: 4073757 (1978-02-01), Schmidt et al.
Esch Erich
Freitag Dieter
Fries Hermann
Schmidt Manfred
Bayer Aktiengesellschaft
Schain Howard E.
LandOfFree
Process for the preparation of boron-containing phenol-formaldeh does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of boron-containing phenol-formaldeh, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of boron-containing phenol-formaldeh will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1940902