Abstract: Novel homo bis-maleimide compounds containing sulfonate linkages are made by reacting an aromatic disulfonyl halide with m- or p-hydroxy phenyl maleimide and have the following formula: ##STR1## Similarly, co-bis-maleimides are made by reaching an aromatic disulfonyl halide, aromatic dihydroxy compound and m or p hydroxy phenyl maleimide having the structural formula: ##STR2## Herein R and R' are the same or different and are divalent radicals selected from the group consisting of meta arylene, para arylene, naphthalene and radicals of the formula A--A and A--Z--A wherein A is selected from the group consisting of meta arylene, para arylene and naphthalene and Z is selected from the group consisting of meta arylene, para arylene, naphthalene, carbonyl, sulfone, sulfide, sulfonyl, sulfonate, sulfoxide, ether, methylene, isopropyl, oxygen, alkyl, --CH.dbd.CH-- and --C.tbd.C-- and R.sub.1, R.sub.2, R.sub.3 and R.sub.

Abstract: m-Diisopropylbenzene dihydroperoxide is produced in good yield in a continuous process by the oxidation of diisopropylbenzene, comprised of major amounts of the m-isomer and less than 6% of the o-isomer, under anhydrous, non-alkaline conditions with oxygen or air at about 85.degree. C.-95.degree. C.

Abstract: A vulcanizable rubber composition and method for making the same in which the rubber component is mixed with a methylene donor and acceptor and the methylene acceptor is a compound of the general structural formula ##STR1## wherein R may be the same or different radicals and is consisting of hydrogen, alkyl of 1 to about 20 carbon atoms, aryl of about 6 to about 12 carbon atoms, R.sub.1 is --H, --OH, --O--CO--R.sub.3 or --O--R.sub.4 and R.sub.3 and R.sub.4 are each an alkyl or aryl group having 1 to about 12 carbon atoms, andWherein R.sub.2 is a hydrogen radical, saturated or unsaturated of 1 to about 20 carbon atoms, naphtyl or an aromatic radical of the formula ##STR2## wherein R may be the same of different and is defined as above.

Abstract: Rubber compounding novalak type resins are prepared by reacting (A) an alkyl substituted resorcinol or phenol prepared by reacting at least one of the compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 may be the same or different radicals selected from the group consisting of --H, --OH, --NH.sub.2 and an alkyl of 1 to about 20 carbon atoms with a mono or polyunsaturated hydrocarbon selected from the group consisting of butene, diisobutylene, piperylene, dipentene, dicyclopentadiene, cyclopentadiene, isoprene, butadiene, pinene, styrene and divinylbenzene in the presence of an acid catalyst, wit (B) an aldehyde selected from the group consisting of formaldehyde, paraformaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, crotonaldehyde, benzaldehyde and furfural.

Abstract: A process for the preparation of resorcinol from diisopropylbenzene includes the steps of oxidizing m-diisopropylbenzene under anhydrous, non-alkaline conditions with oxygen, extracting m-diisopropylbenzene dihydroperoxide and m-diisopropylbenzene hydroxyhydroperoxide with dilute sodium hydroxide, re-extracting with an organic solvent, converting m-diisopropylbenzene hydroxyhydroperoxide to m-diisopropylbenzene dihydroperoxide with hydrogen peroxide, drying the product, decomposing the m-diisopropylbenzene dihydroperoxide in the presence of a catalyst selected from the group consisting of boron trifluoride, ferric chloride and stannic chloride to coproduce resorcinol and actone, and purifying the resorcinol.

Abstract: An improvement in a process for the preparation of resorcinol which includes the steps of treating an extract of selected oxidation products of diisopropylbenzene with hydrogen peroxide to convert m-HHP to m-DHP, drying the treated extract and thereafter, decomposing the m-DHP in the presence of an effective amount, preferably within the range of about 10 to 50 ppm, of a catalyst selected from the group consisting of boron trifluoride, ferric chloride and stannic chloride.

Abstract: An improvement in the preparation of resorcinol includes the decomposition of m-diisopropylbenzene dihydroperoxide (m-DHP) to resorcinol and acetone in the presence of an effective amount of a catalyst selected from the group consisting of boron trifluoride, ferric chloride and stannic chloride. Minute quantities of the catalyst, preferably 10 to 50 ppm, are effective to increase the yields of resorcinol.