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Thermosettable-modified-phenolic-resins

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Thermosettable modified phenolic resins

Details

Inventors: Das, Sajal; Prevorsek, Dusan C.;
Assignee: Allied Corporation (Morris Township, Morris County, NJ)
Primary Examiner: Schain; Howard E.
Assistant Examiner:
Attorney, Agent or Firm: Stewart; Richard C., Fuchs; Gerhard H.

Modified phenolic resins and cured resins prepared therefrom.

DETAILED DESCRIPTION What is claimed is: 1.
A modified phenolic resin of the formula: ##STR18## wherein: A and B are the same or different and are aromatic moieties substituted by at least two cyano moieties, at least two of said cyano molecules are substituted on adjacent carbon atoms, said aromatic moieties of the formula: ##STR19## m is a positive whole number from about 2 to about 4; o and p are the same or different at each occurence and are whole numbers from 0 to 4, with the proviso that the sum of 0 and p is equal to 4; q and r are the same or different and are whole numbers from 0 to 3 with the.
proviso that the sum of q are r is equal to 3; Z is hydrogen, A or B; --X-- is a divalent organic radical; R.
sub.
3 is the same or different at each occurence and is a substituent other than hydrogen which is unreactive under conditions necessary to crosslink the cyano moieties of said A and/or B moieties and; n is a positive whole number.
2.
A resin according to claim 1 where in A and B are consisting of cyano substituted aromatic moieties of the formula: ##STR20## 3.
A resin according to claim 2 where A and B are the same.
4.
A resin according to claim 2 wherein: m is 1 to 3; and o and p are the same or different and are numbers from 0 to 3 with the proviso that the sum of o and p is 3.
5.
A resin according to claim 4 wherein: o is 0 to 1; and p is 1 to 3.
6.
A resin according to claim 5 wherein: m is 2; p is 3; and o is 0.
7.
A resin according to claim 1 wherein from about 20 to about 80 mole percent of Z are A or B.
8.
A resin according to claim 7 wherein from about 35 to about 50 mole percent of Z are A or B.
9.
A resin according to claim 1 wherein X is substituted or unsubstituted methylene or 1,4-phenyldimethylene, wherein permissible substituents are alkyl having from 1 to about 10 carbon atoms and furyl.
10.
A resin according to claim 9 wherein --X-- is a moiety of the formula: ##STR21## 11.
A resin according to claim 2 where in n is from 1 to about 10.
12.
A resin according to claim 11 wherein n is from 1 to about 4

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